Mahindra launches new mini-truck 'Jeeto Plus'; promises 'Badi Gadi, Badi Kamai'
by BusinessToday.InThe new Jeeto Plus' engine is 30 per cent more fuel-efficient when compared to Mahindra Jeeto and provides a mileage of 29.1 kmpl
Mahindra and Mahindra Ltd has launched a new and advanced variant of its mini-truck Jeeto, called the Jeeto Plus. The mini-truck is priced at Rs 3.47 lakh (ex-showroom, Mumbai). The new Jeeto Plus comes with a payload capacity of over 700 kg, a loading area of 7.4 feet, and a 10.5-litre fuel tank.
The Mahindra Jeeto Plus, which is a sub-1 tonne light commercial vehicle, has a longer deck than its predecessor. The advanced version of the Jeeto also gets a warranty of 72,000 km or 3 years (whichever comes earlier).
Mahindra & Mahindra's Business Head- Small Commercial Vehicles, Satinder Singh Bajwa, while speaking about the new Jeeto Plus, stated, "With the launch of Jeeto Plus, Mahindra offers an excellent value proposition for its customers. In line with its brand promise of 'Badi Gadi, Badi Kamai, Badi Kamoyabi', Jeeto Plus enables the customers to earn more profitability and prosperity."
"This mini-truck's stylish looks, car-like comfort and unmatched safety will build on the popularity of the original Jeeto mini-truck. We firmly believe that Jeeto Plus will make its mark in the Indian market with its qualities and competitive price like our products in other segments," Bajwa added.
The new Mahindra Jeeto Plus has a 625 cc single-cylinder water-cooled diesel engine, which generates 16 bhp at 3600 rpm and produces 38 Nm of peak torque at 1200-2200 rpm. The power unit is linked to a 4-speed manual gearbox. Additionally, the new Jeeto Plus' engine is also 30 per cent more fuel-efficient when compared to Mahindra Jeeto and provides a mileage of 29.1 kmpl.
Also Read: CSB Bank IPO opens today: 5 things to know before you subscribe
Also Read: Stake sale in 5 PSUs: Will the govt be fourth time lucky in achieving its divestment target?


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I am a Master of Science in Computer Science graduate from the University of Manitoba, with hands-on experience in Full-Stack Software Development, Data Analysis, Technical Support, alongside working with Python, JavaScript, React, Node.js, SQL, Flask, SQL, CI/CD concepts to create and implement software applications.
I enjoy being challenged and engaging with projects that require me to work outside my comfort and knowledge set, as continuing to learn new languages and development techniques are important to me and the success of your organization.
View Resume
Full Stack Developer involved in designing Auto-Face Detection Machine Learning Application.
Front End: React, JavaScript, Html5, and CSS3.
Back End: Node.js, Express, Knex.js.
Database: PostgreSQL, Oracle, Sql Server
Software and Tools: Postman, GitHub, Clarafai, Bcrypt, Tachyons library.
Designed the cross-platform application for monitoring employees at various geographical locations
Front End: HTML5, CSS3, JSP, Servlets and Ajax
Back End: Java, Apache Tomcat
Database: Oracle, MySQL
Software and Tools: NetBeans.
Data Analysis and creating dashboards to come up with results
Dataset: Kaggle
Database: Oracle, MySQL
Analyzed an important variant of the classic k-server problem with a motivation of closing the long existing gap between lower and upper bounds of the problem Successful in designing the algorithm and writing the conference paper.


Registration Server
Abstract
This is a public facing server prototype that could be used by medical facilities (e.g. clinics) to effect the frictionless onboarding of a medical device to an MSO subscriber’s account. Specifically, it facilitates the installation of the credentials required to connect the device to the subscriber’s WiFi network.
Developers
The repository for the Registration Server is micronets-reg-server
Overview
The Registration Server provides a web portal for clinic staff to manage the device onboarding process. It also provides an API for a medical device to initiate the onboard sequence, advertise itself as an available device on the web portal, submit a CSR and finally install the obtained certificate.
Messaging
The Registration Server communicates with the following Micronets components:
* Medical Device
+ IN
Device Advertisements & Certificate Requests.
* Authorization Server
+ OUT
Redirect for subscriber authentication, device onboarding authorization
* MSO Portal
+ OUT
Request a CSR Template on behalf of the medical device
+ OUT
Request a Certificate on behalf of the medical device
Detailed descriptions of the APIs for this server can be found here
Operation
Preliminary Setup
The initial state of a device is that it is provisioned onto the clinic wifi, and does not yet have any subscriber network certificates or credentials. As part of the clinic provisioning, it has the URL of the registration server baked in.
The patient/subscriber is at the clinic with their mobile device, which has an MSO provided app installed that facilitates web page logins via scanning a QRCode.
Onboarding Process
A clinic representative assists the subscriber in selecting a medical device and initiates the onboard operation by pressing a button on the device, which causes an advertise message to be sent to the server.
An icon representing the device appears on the web portal and is selected by the clinic representative. A menu is presented for the selection of the subscriber’s MSO(ISP), and the MSO is then selected.
The web browser is then redirected to the subscriber’s MSO Authorization Server. Information about the device and the action to be performed is displayed, along with a QRCode that contains identifiers for the service provider/application and the active login session. At this point the Authorization Server obtains a registration token from the MSO Portal, which accompanies the flow for the remainder of the onboard process.
The subscriber uses the mobile app to scan the QRCode, which then forwards the scanned metadata to the Credential Server (Micronets IdOra Server). IdOra then executes a remote login request to the MSO Authorization Server, which now has information about the authenticated subscriber.
The Authorization Server then redirects back to the Registration Server, which in turn sends a request to the Micronets MSO Portal for a CSR Template.
When the CSR Template is received, it is returned to the device, which has been waiting with a long poll for a (CSRT) response to its advertise request.
The device generates a CSR and submits it to the Registration Server, which forwards it to the MSO Portal, which forwards it to the Identity Server. The Identity Server creates a certificate and returns it down the chain to the device. Certain metadata such as the subscriber’s SSID are also returned as part of the response.
The device installs the certificate and configures the wpa_supplicant
file. When the subscriber returns home with the device, it will automatically connect to the subscriber’s WiFi.
Sequence Diagram
Installation
Detailed instructions for building and installing the Registration Server can be found here


Home
(current)
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Projector
Sound System
8,000 capacity
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4,000 capacity
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No 12 Yaba road Surulere Lagos
Facility Available
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2,000 capacity
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Submit


Full Name:
Contact:
Email:
Password
Hire a developer or register as one.
Work on remote locations or anywhere you choose
Simply register yourself and wait for profile approval.


Add Demo Data
When doing the initial setup wizard of OpenMRS, in Step 2, add the demo data to the database. This will add the basic form and load in the basic OpenMRS concept dictionary.
Add New Concepts
Add the following concepts. Be careful not to set the wrong properties and note that you cannot delete concepts (only void them). Go to the Dictionary tab and then click "Add New Concept."
- DOCTOR DIAGNOSIS
Description: Diagnosis for Sana telereferral case
Class: Question
Datatype: Text
- DOCTOR URGENCY LEVEL
Description: Urgency level for Sana telereferral case
Class: Question
Datatype: Text
- DOCTOR TREATMENT RECOMMENDATION
Description: Treatment recommendation for Sana telereferral case
Class: Question
Datatype: Text
- DOCTOR COMMENTS
Description: Comments for Sana telereferral case
Class: Question
Datatype: Text
- DOCTOR INFO REQUEST
Description: More information request for Sana telereferral case before diagnosis can be made
Class: Question
Datatype: Text
- PICTURE:
Description: Image media file for patient encounter
Class: Misc
Datatype: Complex
Handler: ThumbnailImageHandler
Note: Sana and Media Viewer Modules must be loaded in for these handlers to appear as drop down options
- SOUND:
Description: Audio media file for patient encounter
Class: Misc
Datatype: Complex
Handler: MediaFileHandler
Note: Sana and Media Viewer Modules must be loaded in for these handlers to appear as drop down options
- VIDEO:
Description: Video media file for patient encounter
Class: Misc
Datatype: Complex
Handler: MediaFileHandler
Note: Sana and Media Viewer Modules must be loaded in for these handlers to appear as drop down options
At the end of adding all these concepts, search the dictionary for these concepts to ensure that they appear. (Example:http://localhost/openmrs/dictionary/index.htm)
Add Basic Form
The Basic Form is used when creating a new patient encounter when Sana cases are uploaded from the phone. When doing the initial setup wizard for OpenMRS, if you didn't select the "Add Demo Data" option, then you won't have the basic form loaded in. Check if you have it loaded in by going to the Administration tab > Forms > Manage Forms.
If you don't have the Basic Form already loaded in, go to "Add Form" and fill it out. Upload new XSLT file by copying the following file located on the MIT Media server (save this to a form.xslt file): https://demo.sana.csail.mit.edu/openmrs/admin/forms/formViewXslt.form?formId=1
Note: Use guest:Sanamobile1 for credentials when prompted
Create New Roles and Manage Privileges
Restrict access to certain functionality in OpenMRS (such as permission to view patient records or permission to add a patient encounter) according to the healthcare worker's role. Manage these privileges by going to the Administration tab > Users > Manage Roles. Make sure that the below roles have the specified privileges. If the role doesn't exist already (Specialist and Remote Healthcare Worker), create it by clicking "Add Role" under the Role Management title. Note that the Specialist and Remote Healthcare Worker roles INHERIT privileges from the Provider role.
Provider
This is an existing role already, so just modify its privileges.
- Add Observations
- Edit Encounters
- Edit Observations
- Edit Patients
- Manage Encounter Queue
- Patient Dashboard - View Demographics Section
- Patient Dashboard - View Encounters Section
- Patient Dashboard - View Forms Section
- Patient Dashboard - View Graphs Section
- Patient Dashboard - View Overview Section
- Patient Dashboard - View Patient Summary
- Patient Dashboard - View Regimen Section
- View Concepts
- View Concept Classes
- View Concept Datatypes
- View Concept Sources
- View Encounters
- View Encounter Types
- View Forms
- View Observations
- View Navigation Menu
- View Patient Identifiers
- View Patients
- View Person Attribute Types
- View Privileges
- View Reports
- View Roles
Remote Healthcare Worker
NOTE: Remote Healthcare Worker inherits privileges from the role: Provider
- [depreccated]Access REST API
- Add People
- Add Patients
- Add Encounters
- Manage Concepts
- Manage Encounter Queue (to upload a case to the Sana queue)
Specialist
NOTE: Specialist inherits privileges from the role: Provider
- View Navigation Bar (to access the menu bar tab to link to the Sana queue)
- View Sana Queue (to view queue)
On-Call Provider
NOTE: Make sure the capitalization is precisely as above, this role doesn't inherit any other role
Add New Person Attributes
- Contact Phone
Format: java.lang.String
Description: Phone number for person for Sana notifications
- Contact Email
Format: java.lang.String
Description: Email for person for Sana notifications
Issue with OpenMRS User Attributes not displaying[edit]
The additional Person Attributes for the Contact Phone and Contact Email have shown to have some issues displaying in the Admin --> Manage Users page with some of the 1.6 versions of OpenMRS. As a workaround, have each user go into the My Profile --> Notfications page and enter an email address. The return sms number will be the one included with the mobile client's original upload and stored with the entry in the queue. (Note the issue seems to be fixed in more recent versions of OpenMRS. The next release of the Sana module will return to the original behavior utilizing the Person Attributes).
Create New Users
Because you don't want to give admin privileges out to the doctors who will be using the system, you should create new user accounts for each doctor and healthcare worker. Go to Administration tab > Manage Users > Add User
- Select Role as Specialist (reviewing cases in Sana queue) or Remote Healthcare Worker (uploading cases to Sana queue)
- Click "Show Advanced Options"
- Fill in an email and contact phone number (in the format:<PHONE_NUMBER>7)
- On the Sana phone app, in the Settings page, change the OpenMRS username and password to match this new user's credentials
To Receive Email Notifications
Sana is setup to only send SMS and email notifications when
- Diagnosis is made by the specialist
- Retake image request (or request for more information) is made by the specialist
The SMS will be sent to the phone number from which the case was uploaded.
The email will be sent to the "Contact Email" of the user who uploaded the case (the user being the OpenMRS username specified in the settings on the Sana Android phone app). You can modify the email address by going to Administration tab > Users > Manage Users > click on user you want > click on advanced options (Make sure the contact email attribute has been added, see above directions).
Set Global Properties so OpenMRS can point to MDS
Make sure that OpenMRS knows which Sana Dispatch Server it is communicating with. On the OpenMRS admin page, under "Maintenance," click on "Manage Global Properties." Scroll down to the following properties and set them to appropriate values according to your Sana Dispatch Server instance. Below are example values for the MIT server.
- sana.mdsUri: Location of the MDS. This site should say "Sanamobile MDS : Online" (Example: http://localhost/mds)
- snaa.email_notification_server_url: For email notifications from OpenMRS that get routed through the MDS and out to the recipient according to the email server specified in the MDS settings (Example: http://localhost/mds/notifications/submit/email/)
- sana.notification_server_url: For SMS notifications from OpenMRS that get routed through the MDS and out to the recipient according to the SMS gateway specified in the MDS settings. (Example: http://localhost/mds/notifications/submit/)
- The default values for the other properties are fine.
- Scroll to the bottom of the page and 'SAVE' changes.
Load in a Medical Ontology
When a specialist makes a diagnosis for a patient, instead of having them fill in the diagnosis in a free-text box, we wanted to have them select from a set of coded medical terms such as from the SNOMED vocabulary. Hence, the doctor can search for a diagnosis like "pneumonia," see the relevant search results in that medical vocabulary, and select ones to be tagged to the particular patient case. There would still be a "Comments" free text box, in case the specialist wasn't able to find the proper terms to describe the patient's condition.
In order to load in an ontology (such as SNOMED, ICD-10, or others), perform a one-time upload procedure from a csv file of all the coded medical terms into the OpenMRS concept dictionary. To upload the vocabulary, go to the Administration tab > Sana > Manage Medical Vocabularies.
Make sure that you have a csv file of the medical vocabulary.
For our demo server, we have loaded in the UMLS Enhanced VA/KP Problem List Subset of SNOMED CT, which is about 17,000 terms. You can obtain a copy of this medical vocabulary list by downloading it here: http://www.nlm.nih.gov/research/umls/Snomed/core_subset.html. You may need to apply for a free license.


#include <event.h>
Public Attributes | |
| volatile bool | loop |
| char ** | ring |
| int | size |
| int | first |
| int | end |
| Thread | thread |
| SpinLock | spin |
| Lock | lock |
| Condition | cond |
Event management data
| Condition Event::cond |
condition
| int Event::end |
one past the last position in the ring
| int Event::first |
first position in the ring
| Lock Event::lock |
lock
| volatile bool Event::loop |
flag allowing to loop, waiting for events
| char** Event::ring |
ring of buffers
| int Event::size |
size of the buffer ring
| SpinLock Event::spin |
spin lock
| Thread Event::thread |
thread


public interface MBeanServer extends MBeanServerConnection
This is the interface for MBean manipulation on the agent side. It contains the methods necessary for the creation, registration, and deletion of MBeans as well as the access methods for registered MBeans. This is the core component of the JMX infrastructure.
User code does not usually implement this interface. Instead,
an object that implements this interface is obtained with one of
the methods in the MBeanServerFactory
class.
Every MBean which is added to the MBean server becomes manageable: its attributes and operations become remotely accessible through the connectors/adaptors connected to that MBean server. A Java object cannot be registered in the MBean server unless it is a JMX compliant MBean.
When an MBean is registered or unregistered in the
MBean server a MBeanServerNotification
Notification is emitted. To register an
object as listener to MBeanServerNotifications you should call the
MBean server method addNotificationListener
with ObjectName
the
ObjectName
of the MBeanServerDelegate
. This
ObjectName
is:
JMImplementation:type=MBeanServerDelegate
.
An object obtained from the createMBeanServer
or
newMBeanServer
methods of the MBeanServerFactory
class applies security
checks to its methods, as follows.
First, if there is no security manager (System.getSecurityManager()
is null), then an implementation of
this interface is free not to make any checks.
Assuming that there is a security manager, or that the
implementation chooses to make checks anyway, the checks are made
as detailed below. In what follows, and unless otherwise specified,
className
is the
string returned by MBeanInfo.getClassName()
for the target
MBean.
If a security check fails, the method throws SecurityException
.
For methods that can throw InstanceNotFoundException
,
this exception is thrown for a non-existent MBean, regardless of
permissions. This is because a non-existent MBean has no
className
.
For the invoke
method, the caller's
permissions must imply MBeanPermission(className, operationName, name, "invoke")
.
For the getAttribute
method, the
caller's permissions must imply MBeanPermission(className, attribute, name, "getAttribute")
.
For the getAttributes
method, the
caller's permissions must imply MBeanPermission(className, null, name, "getAttribute")
.
Additionally, for each attribute a in the AttributeList
, if the caller's permissions do not imply MBeanPermission(className, a, name, "getAttribute")
, the
MBean server will behave as if that attribute had not been in the
supplied list.
For the setAttribute
method, the
caller's permissions must imply MBeanPermission(className, attrName, name, "setAttribute")
, where
attrName
is attribute.getName()
.
For the setAttributes
method, the
caller's permissions must imply MBeanPermission(className, null, name, "setAttribute")
.
Additionally, for each attribute a in the AttributeList
, if the caller's permissions do not imply MBeanPermission(className, a, name, "setAttribute")
, the
MBean server will behave as if that attribute had not been in the
supplied list.
For the addNotificationListener
methods,
the caller's permissions must imply MBeanPermission(className, null, name,
"addNotificationListener")
.
For the removeNotificationListener
methods,
the caller's permissions must imply MBeanPermission(className, null, name,
"removeNotificationListener")
.
For the getMBeanInfo
method, the
caller's permissions must imply MBeanPermission(className, null, name, "getMBeanInfo")
.
For the getObjectInstance
method,
the caller's permissions must imply MBeanPermission(className, null, name, "getObjectInstance")
.
For the isInstanceOf
method, the
caller's permissions must imply MBeanPermission(className, null, name, "isInstanceOf")
.
For the queryMBeans
method, the
caller's permissions must imply MBeanPermission(null, null, null, "queryMBeans")
.
Additionally, for each MBean n that matches name
,
if the caller's permissions do not imply MBeanPermission(className, null, n, "queryMBeans")
, the
MBean server will behave as if that MBean did not exist.
Certain query elements perform operations on the MBean server.
If the caller does not have the required permissions for a given
MBean, that MBean will not be included in the result of the query.
The standard query elements that are affected are Query.attr(String)
, Query.attr(String,String)
, and Query.classattr()
.
For the queryNames
method, the checks
are the same as for queryMBeans
except that
"queryNames"
is used instead of
"queryMBeans"
in the MBeanPermission
objects. Note that a "queryMBeans"
permission implies
the corresponding "queryNames"
permission.
For the getDomains
method, the caller's
permissions must imply MBeanPermission(null, null, null, "getDomains")
. Additionally,
for each domain d in the returned array, if the caller's
permissions do not imply MBeanPermission(null, null, new ObjectName("d:x=x"),
"getDomains")
, the domain is eliminated from the array. Here,
x=x
is any key=value pair, needed to
satisfy ObjectName's constructor but not otherwise relevant.
For the getClassLoader
method, the
caller's permissions must imply MBeanPermission(className, null, loaderName,
"getClassLoader")
.
For the getClassLoaderFor
method,
the caller's permissions must imply MBeanPermission(className, null, mbeanName,
"getClassLoaderFor")
.
For the getClassLoaderRepository
method, the caller's permissions must
imply MBeanPermission(null, null, null, "getClassLoaderRepository")
.
For the deprecated deserialize
methods, the
required permissions are the same as for the methods that replace
them.
For the instantiate
methods, the caller's
permissions must imply MBeanPermission(className, null, null, "instantiate")
,
where className
is the name of the class which is to
be instantiated.
For the registerMBean
method, the
caller's permissions must imply MBeanPermission(className, null, name, "registerMBean")
.
If the MBeanPermission
check succeeds, the MBean's
class is validated by checking that its ProtectionDomain
implies MBeanTrustPermission("register")
.
Finally, if the name
argument is null, another
MBeanPermission
check is made using the
ObjectName
returned by MBeanRegistration.preRegister
.
For the createMBean
methods, the caller's
permissions must imply the permissions needed by the equivalent
instantiate
followed by
registerMBean
.
For the unregisterMBean
method,
the caller's permissions must imply MBeanPermission(className, null, name, "unregisterMBean")
.
| Modifier and Type | Method and Description |
|---|---|
void |
addNotificationListener(ObjectName name,
NotificationListener listener,
NotificationFilter filter,
Object handback)
Adds a listener to a registered MBean.
|
void |
addNotificationListener(ObjectName name,
ObjectName listener,
NotificationFilter filter,
Object handback)
Adds a listener to a registered MBean.
|
ObjectInstance |
createMBean(String className,
ObjectName name)
Instantiates and registers an MBean in the MBean server.
|
ObjectInstance |
createMBean(String className,
ObjectName name,
Object[] params,
String[] signature)
Instantiates and registers an MBean in the MBean server.
|
ObjectInstance |
createMBean(String className,
ObjectName name,
ObjectName loaderName)
Instantiates and registers an MBean in the MBean server.
|
ObjectInstance |
createMBean(String className,
ObjectName name,
ObjectName loaderName,
Object[] params,
String[] signature)
Instantiates and registers an MBean in the MBean server.
|
ObjectInputStream |
deserialize(ObjectName name,
byte[] data)
Deprecated.
Use
getClassLoaderFor to
obtain the appropriate class loader for deserialization. |
ObjectInputStream |
deserialize(String className,
byte[] data)
Deprecated.
Use
getClassLoaderRepository() to obtain the
class loader repository and use it to deserialize. |
ObjectInputStream |
deserialize(String className,
ObjectName loaderName,
byte[] data)
Deprecated.
Use
getClassLoader to obtain
the class loader for deserialization. |
Object |
getAttribute(ObjectName name,
String attribute)
Gets the value of a specific attribute of a named MBean.
|
AttributeList |
getAttributes(ObjectName name,
String[] attributes)
Retrieves the values of several attributes of a named MBean.
|
ClassLoader |
getClassLoader(ObjectName loaderName)
Return the named
ClassLoader . |
ClassLoader |
getClassLoaderFor(ObjectName mbeanName)
Return the
ClassLoader that was used for
loading the class of the named MBean. |
ClassLoaderRepository |
getClassLoaderRepository()
Return the ClassLoaderRepository for this MBeanServer.
|
String |
getDefaultDomain()
Returns the default domain used for naming the MBean.
|
String[] |
getDomains()
Returns the list of domains in which any MBean is currently
registered.
|
Integer |
getMBeanCount()
Returns the number of MBeans registered in the MBean server.
|
MBeanInfo |
getMBeanInfo(ObjectName name)
This method discovers the attributes and operations that an
MBean exposes for management.
|
ObjectInstance |
getObjectInstance(ObjectName name)
Gets the
ObjectInstance for a given MBean
registered with the MBean server. |
Object |
instantiate(String className)
Instantiates an object using the list of all class loaders
registered in the MBean server's
Class Loader
Repository . |
Object |
instantiate(String className,
Object[] params,
String[] signature)
Instantiates an object using the list of all class loaders
registered in the MBean server
Class Loader
Repository . |
Object |
instantiate(String className,
ObjectName loaderName)
Instantiates an object using the class Loader specified by its
ObjectName . |
Object |
instantiate(String className,
ObjectName loaderName,
Object[] params,
String[] signature)
Instantiates an object.
|
Object |
invoke(ObjectName name,
String operationName,
Object[] params,
String[] signature)
Invokes an operation on an MBean.
|
boolean |
isInstanceOf(ObjectName name,
String className)
Returns true if the MBean specified is an instance of the
specified class, false otherwise.
|
boolean |
isRegistered(ObjectName name)
Checks whether an MBean, identified by its object name, is
already registered with the MBean server.
|
Set<ObjectInstance> |
queryMBeans(ObjectName name,
QueryExp query)
Gets MBeans controlled by the MBean server.
|
Set<ObjectName> |
queryNames(ObjectName name,
QueryExp query)
Gets the names of MBeans controlled by the MBean server.
|
ObjectInstance |
registerMBean(Object object,
ObjectName name)
Registers a pre-existing object as an MBean with the MBean
server.
|
void |
removeNotificationListener(ObjectName name,
NotificationListener listener)
Removes a listener from a registered MBean.
|
void |
removeNotificationListener(ObjectName name,
NotificationListener listener,
NotificationFilter filter,
Object handback)
Removes a listener from a registered MBean.
|
void |
removeNotificationListener(ObjectName name,
ObjectName listener)
Removes a listener from a registered MBean.
|
void |
removeNotificationListener(ObjectName name,
ObjectName listener,
NotificationFilter filter,
Object handback)
Removes a listener from a registered MBean.
|
void |
setAttribute(ObjectName name,
Attribute attribute)
Sets the value of a specific attribute of a named MBean.
|
AttributeList |
setAttributes(ObjectName name,
AttributeList attributes)
Sets the values of several attributes of a named MBean.
|
void |
unregisterMBean(ObjectName name)
Unregisters an MBean from the MBean server.
|
ObjectInstance createMBean(String className, ObjectName name) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
Instantiates and registers an MBean in the MBean server. The
MBean server will use its Default Loader
Repository
to load the class of the MBean. An object name is
associated with the MBean. If the object name given is null, the
MBean must provide its own name by implementing the MBeanRegistration
interface
and returning the name from the preRegister
method.
This method is equivalent to createMBean(className, name, (Object[]) null, (String[])
null)
.
If this method successfully creates an MBean, a notification is sent as described above.
createMBean
in interface MBeanServerConnection
className
- The class name of the MBean to be instantiated.name
- The object name of the MBean. May be null.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
instantiated MBean. If the contained ObjectName
is n
, the contained Java class name is
getMBeanInfo(n)
.getClassName()
.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null, the ObjectName
passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or its
preRegister
or postRegister
method threw
a RuntimeException
. If the postRegister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the createMBean
method will
throw a RuntimeMBeanException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.RuntimeErrorException
- If the postRegister
(MBeanRegistration
interface) method of the MBean throws an
Error
, the createMBean
method will
throw a RuntimeErrorException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeErrorException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or a
java.lang.Exception
that occurred
when trying to invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already
under the control of the MBean server.MBeanRegistrationException
- The
preRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The
MBean will not be registered.MBeanException
- The constructor of the MBean has
thrown an exceptionNotCompliantMBeanException
- This class is not a JMX
compliant MBeanMBeanRegistration
ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
Instantiates and registers an MBean in the MBean server. The
class loader to be used is identified by its object name. An
object name is associated with the MBean. If the object name of
the loader is null, the ClassLoader that loaded the MBean
server will be used. If the MBean's object name given is null,
the MBean must provide its own name by implementing the MBeanRegistration
interface
and returning the name from the preRegister
method.
This method is equivalent to createMBean(className, name, loaderName, (Object[]) null,
(String[]) null)
.
If this method successfully creates an MBean, a notification is sent as described above.
createMBean
in interface MBeanServerConnection
className
- The class name of the MBean to be instantiated.name
- The object name of the MBean. May be null.loaderName
- The object name of the class loader to be used.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
instantiated MBean. If the contained ObjectName
is n
, the contained Java class name is
getMBeanInfo(n)
.getClassName()
.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null, the ObjectName
passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or its
preRegister
or postRegister
method threw
a RuntimeException
. If the postRegister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the createMBean
method will
throw a RuntimeMBeanException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.RuntimeErrorException
- If the postRegister
(MBeanRegistration
interface) method of the MBean throws an
Error
, the createMBean
method will
throw a RuntimeErrorException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeErrorException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or a
java.lang.Exception
that occurred when trying to
invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already
under the control of the MBean server.MBeanRegistrationException
- The
preRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The
MBean will not be registered.MBeanException
- The constructor of the MBean has
thrown an exceptionNotCompliantMBeanException
- This class is not a JMX
compliant MBeanInstanceNotFoundException
- The specified class loader
is not registered in the MBean server.MBeanRegistration
ObjectInstance createMBean(String className, ObjectName name, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException
Default Loader
Repository
to load the class of the MBean. An object name is
associated with the MBean. If the object name given is null, the
MBean must provide its own name by implementing the MBeanRegistration
interface
and returning the name from the preRegister
method.
If this method successfully creates an MBean, a notification is sent as described above.
createMBean
in interface MBeanServerConnection
className
- The class name of the MBean to be instantiated.name
- The object name of the MBean. May be null.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
instantiated MBean. If the contained ObjectName
is n
, the contained Java class name is
getMBeanInfo(n)
.getClassName()
.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null, the ObjectName
passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.RuntimeMBeanException
- If the MBean's constructor or its
preRegister
or postRegister
method threw
a RuntimeException
. If the postRegister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the createMBean
method will
throw a RuntimeMBeanException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.RuntimeErrorException
- If the postRegister
(MBeanRegistration
interface) method of the MBean throws an
Error
, the createMBean
method will
throw a RuntimeErrorException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeErrorException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or a
java.lang.Exception
that occurred when trying to
invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already
under the control of the MBean server.MBeanRegistrationException
- The
preRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The
MBean will not be registered.MBeanException
- The constructor of the MBean has
thrown an exceptionNotCompliantMBeanException
- This class is not a JMX
compliant MBeanMBeanRegistration
ObjectInstance createMBean(String className, ObjectName name, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, InstanceAlreadyExistsException, MBeanRegistrationException, MBeanException, NotCompliantMBeanException, InstanceNotFoundException
Instantiates and registers an MBean in the MBean server. The
class loader to be used is identified by its object name. An
object name is associated with the MBean. If the object name of
the loader is not specified, the ClassLoader that loaded the
MBean server will be used. If the MBean object name given is
null, the MBean must provide its own name by implementing the
MBeanRegistration
interface and returning the name from the preRegister
method.
If this method successfully creates an MBean, a notification is sent as described above.
createMBean
in interface MBeanServerConnection
className
- The class name of the MBean to be instantiated.name
- The object name of the MBean. May be null.loaderName
- The object name of the class loader to be used.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
instantiated MBean. If the contained ObjectName
is n
, the contained Java class name is
getMBeanInfo(n)
.getClassName()
.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null, the ObjectName
passed
in parameter contains a pattern or no ObjectName
is specified for the MBean.RuntimeMBeanException
- The MBean's constructor or its
preRegister
or postRegister
method threw
a RuntimeException
. If the postRegister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the createMBean
method will
throw a RuntimeMBeanException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.RuntimeErrorException
- If the postRegister
method
(MBeanRegistration
interface) method of the MBean throws an
Error
, the createMBean
method will
throw a RuntimeErrorException
, although the MBean creation
and registration succeeded. In such a case, the MBean will be actually
registered even though the createMBean
method
threw an exception. Note that RuntimeErrorException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or a
java.lang.Exception
that occurred when trying to
invoke the MBean's constructor.InstanceAlreadyExistsException
- The MBean is already
under the control of the MBean server.MBeanRegistrationException
- The
preRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The
MBean will not be registered.MBeanException
- The constructor of the MBean has
thrown an exceptionNotCompliantMBeanException
- This class is not a JMX
compliant MBeanInstanceNotFoundException
- The specified class loader
is not registered in the MBean server.MBeanRegistration
ObjectInstance registerMBean(Object object, ObjectName name) throws InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException
Registers a pre-existing object as an MBean with the MBean
server. If the object name given is null, the MBean must
provide its own name by implementing the MBeanRegistration
interface
and returning the name from the preRegister
method.
If this method successfully registers an MBean, a notification is sent as described above.
object
- The MBean to be registered as an MBean.name
- The object name of the MBean. May be null.ObjectInstance
, containing the
ObjectName
and the Java class name of the newly
registered MBean. If the contained ObjectName
is n
, the contained Java class name is
getMBeanInfo(n)
.getClassName()
.InstanceAlreadyExistsException
- The MBean is already
under the control of the MBean server.MBeanRegistrationException
- The
preRegister
(MBeanRegistration
interface) method of the MBean has thrown an exception. The
MBean will not be registered.RuntimeMBeanException
- If the postRegister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the registerMBean
method will
throw a RuntimeMBeanException
, although the MBean
registration succeeded. In such a case, the MBean will be actually
registered even though the registerMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.RuntimeErrorException
- If the postRegister
(MBeanRegistration
interface) method of the MBean throws an
Error
, the registerMBean
method will
throw a RuntimeErrorException
, although the MBean
registration succeeded. In such a case, the MBean will be actually
registered even though the registerMBean
method
threw an exception. Note that RuntimeErrorException
can
also be thrown by preRegister
, in which case the MBean
will not be registered.NotCompliantMBeanException
- This object is not a JMX
compliant MBeanRuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
passed in parameter is null or no object name is specified.MBeanRegistration
void unregisterMBean(ObjectName name) throws InstanceNotFoundException, MBeanRegistrationException
If this method successfully unregisters an MBean, a notification is sent as described above.
unregisterMBean
in interface MBeanServerConnection
name
- The object name of the MBean to be unregistered.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
name in parameter is null or the MBean you are when trying to
unregister is the MBeanServerDelegate
MBean.RuntimeMBeanException
- If the postDeregister
(MBeanRegistration
interface) method of the MBean throws a
RuntimeException
, the unregisterMBean
method
will throw a RuntimeMBeanException
, although the MBean
unregistration succeeded. In such a case, the MBean will be actually
unregistered even though the unregisterMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preDeregister
, in which case the MBean
will remain registered.RuntimeErrorException
- If the postDeregister
(MBeanRegistration
interface) method of the MBean throws an
Error
, the unregisterMBean
method will
throw a RuntimeErrorException
, although the MBean
unregistration succeeded. In such a case, the MBean will be actually
unregistered even though the unregisterMBean
method
threw an exception. Note that RuntimeMBeanException
can
also be thrown by preDeregister
, in which case the MBean
will remain registered.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.MBeanRegistrationException
- The preDeregister
((MBeanRegistration
interface) method of the MBean
has thrown an exception.MBeanRegistration
ObjectInstance getObjectInstance(ObjectName name) throws InstanceNotFoundException
MBeanServerConnection
ObjectInstance
for a given MBean
registered with the MBean server.getObjectInstance
in interface MBeanServerConnection
name
- The object name of the MBean.ObjectInstance
associated with the MBean
specified by name. The contained ObjectName
is name
and the contained class name is
getMBeanInfo(name)
.getClassName()
.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.Set<ObjectInstance> queryMBeans(ObjectName name, QueryExp query)
ObjectName
and/or a Query expression, a specific
MBean. When the object name is null or no domain and key
properties are specified, all objects are to be selected (and
filtered if a query is specified). It returns the set of
ObjectInstance
objects (containing the
ObjectName
and the Java Class name) for the
selected MBeans.queryMBeans
in interface MBeanServerConnection
name
- The object name pattern identifying the MBeans to
be retrieved. If null or no domain and key properties are
specified, all the MBeans registered will be retrieved.query
- The query expression to be applied for selecting
MBeans. If null no query expression will be applied for
selecting MBeans.ObjectInstance
objects for the selected MBeans. If no MBean satisfies the
query an empty list is returned.RuntimeOperationsException
Set<ObjectName> queryNames(ObjectName name, QueryExp query)
ObjectName
and/or a Query
expression, a specific MBean name (equivalent to testing
whether an MBean is registered). When the object name is null
or no domain and key properties are specified, all objects are
selected (and filtered if a query is specified). It returns the
set of ObjectNames for the MBeans selected.queryNames
in interface MBeanServerConnection
name
- The object name pattern identifying the MBean names
to be retrieved. If null or no domain and key properties are
specified, the name of all registered MBeans will be retrieved.query
- The query expression to be applied for selecting
MBeans. If null no query expression will be applied for
selecting MBeans.RuntimeOperationsException
boolean isRegistered(ObjectName name)
MBeanServerConnection
isRegistered
in interface MBeanServerConnection
name
- The object name of the MBean to be checked.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
name in parameter is null.Integer getMBeanCount()
getMBeanCount
in interface MBeanServerConnection
Object getAttribute(ObjectName name, String attribute) throws MBeanException, AttributeNotFoundException, InstanceNotFoundException, ReflectionException
MBeanServerConnection
getAttribute
in interface MBeanServerConnection
name
- The object name of the MBean from which the
attribute is to be retrieved.attribute
- A String specifying the name of the attribute
to be retrieved.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
name in parameter is null or the attribute in parameter is
null.MBeanException
- Wraps an exception thrown by the
MBean's getter.AttributeNotFoundException
- The attribute specified
is not accessible in the MBean.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.ReflectionException
- Wraps a
java.lang.Exception
thrown when trying to invoke
the setter.MBeanServerConnection.setAttribute(javax.management.ObjectName, javax.management.Attribute)
AttributeList getAttributes(ObjectName name, String[] attributes) throws InstanceNotFoundException, ReflectionException
MBeanServerConnection
Retrieves the values of several attributes of a named MBean. The MBean is identified by its object name.
If one or more attributes cannot be retrieved for some reason, they
will be omitted from the returned AttributeList
. The caller
should check that the list is the same size as the attributes
array. To discover what problem prevented a given attribute from being
retrieved, call getAttribute
for that attribute.
Here is an example of calling this method and checking that it succeeded in retrieving all the requested attributes:
String[] attrNames = ...; AttributeList list = mbeanServerConnection.getAttributes(objectName, attrNames); if (list.size() == attrNames.length) System.out.println("All attributes were retrieved successfully"); else {List<String>
missing = newArrayList<String>
(Arrays.asList
(attrNames)); for (Attribute a : list.asList()) missing.remove(a.getName()); System.out.println("Did not retrieve: " + missing); }
getAttributes
in interface MBeanServerConnection
name
- The object name of the MBean from which the
attributes are retrieved.attributes
- A list of the attributes to be retrieved.RuntimeOperationsException
- Wrap a
java.lang.IllegalArgumentException
: The object
name in parameter is null or attributes in parameter is null.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.ReflectionException
- An exception occurred when
trying to invoke the getAttributes method of a Dynamic MBean.MBeanServerConnection.setAttributes(javax.management.ObjectName, javax.management.AttributeList)
void setAttribute(ObjectName name, Attribute attribute) throws InstanceNotFoundException, AttributeNotFoundException, InvalidAttributeValueException, MBeanException, ReflectionException
MBeanServerConnection
setAttribute
in interface MBeanServerConnection
name
- The name of the MBean within which the attribute is
to be set.attribute
- The identification of the attribute to be set
and the value it is to be set to.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
name in parameter is null or the attribute in parameter is
null.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.AttributeNotFoundException
- The attribute specified
is not accessible in the MBean.InvalidAttributeValueException
- The value specified
for the attribute is not valid.MBeanException
- Wraps an exception thrown by the
MBean's setter.ReflectionException
- Wraps a
java.lang.Exception
thrown when trying to invoke
the setter.MBeanServerConnection.getAttribute(javax.management.ObjectName, java.lang.String)
AttributeList setAttributes(ObjectName name, AttributeList attributes) throws InstanceNotFoundException, ReflectionException
MBeanServerConnection
Sets the values of several attributes of a named MBean. The MBean is identified by its object name.
If one or more attributes cannot be set for some reason, they will be
omitted from the returned AttributeList
. The caller should check
that the input AttributeList
is the same size as the output one.
To discover what problem prevented a given attribute from being retrieved,
it will usually be possible to call setAttribute
for that attribute, although this is not guaranteed to work. (For
example, the values of two attributes may have been rejected because
they were inconsistent with each other. Setting one of them alone might
be allowed.)
Here is an example of calling this method and checking that it succeeded in setting all the requested attributes:
AttributeList inputAttrs = ...; AttributeList outputAttrs = mbeanServerConnection.setAttributes(objectName, inputAttrs); if (inputAttrs.size() == outputAttrs.size()) System.out.println("All attributes were set successfully"); else {List<String>
missing = newArrayList<String>
(); for (Attribute a : inputAttrs.asList()) missing.add(a.getName()); for (Attribute a : outputAttrs.asList()) missing.remove(a.getName()); System.out.println("Did not set: " + missing); }
setAttributes
in interface MBeanServerConnection
name
- The object name of the MBean within which the
attributes are to be set.attributes
- A list of attributes: The identification of
the attributes to be set and the values they are to be set to.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The object
name in parameter is null or attributes in parameter is null.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.ReflectionException
- An exception occurred when
trying to invoke the getAttributes method of a Dynamic MBean.MBeanServerConnection.getAttributes(javax.management.ObjectName, java.lang.String[])
Object invoke(ObjectName name, String operationName, Object[] params, String[] signature) throws InstanceNotFoundException, MBeanException, ReflectionException
MBeanServerConnection
Invokes an operation on an MBean.
Because of the need for a signature
to differentiate
possibly-overloaded operations, it is much simpler to invoke operations
through an MBean proxy where possible. For example, suppose you have a
Standard MBean interface like this:
public interface FooMBean { public int countMatches(String[] patterns, boolean ignoreCase); }
The countMatches
operation can be invoked as follows:
String[] myPatterns = ...; int count = (Integer) mbeanServerConnection.invoke( objectName, "countMatches", new Object[] {myPatterns, true}, new String[] {String[].class.getName(), boolean.class.getName()});
Alternatively, it can be invoked through a proxy as follows:
String[] myPatterns = ...; FooMBean fooProxy = JMX.newMBeanProxy( mbeanServerConnection, objectName, FooMBean.class); int count = fooProxy.countMatches(myPatterns, true);
invoke
in interface MBeanServerConnection
name
- The object name of the MBean on which the method is
to be invoked.operationName
- The name of the operation to be invoked.params
- An array containing the parameters to be set when
the operation is invokedsignature
- An array containing the signature of the
operation, an array of class names in the format returned by
Class.getName()
. The class objects will be loaded using the same
class loader as the one used for loading the MBean on which the
operation was invoked.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.MBeanException
- Wraps an exception thrown by the
MBean's invoked method.ReflectionException
- Wraps a
java.lang.Exception
thrown while trying to invoke
the method.String getDefaultDomain()
MBeanServerConnection
getDefaultDomain
in interface MBeanServerConnection
String[] getDomains()
MBeanServerConnection
Returns the list of domains in which any MBean is currently
registered. A string is in the returned array if and only if
there is at least one MBean registered with an ObjectName whose
getDomain()
is equal to that
string. The order of strings within the returned array is
not defined.
getDomains
in interface MBeanServerConnection
void addNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
Adds a listener to a registered MBean. Notifications emitted by the MBean will be forwarded to the listener.
If the source of the notification is a reference to an MBean object, the MBean server will replace it by that MBean's ObjectName. Otherwise the source is unchanged.addNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be added.listener
- The listener object which will handle the
notifications emitted by the registered MBean.filter
- The filter object. If filter is null, no
filtering will be performed before handling notifications.handback
- The context to be sent to the listener when a
notification is emitted.InstanceNotFoundException
- The MBean name provided
does not match any of the registered MBeans.MBeanServerConnection.removeNotificationListener(ObjectName, NotificationListener)
,
MBeanServerConnection.removeNotificationListener(ObjectName, NotificationListener,
NotificationFilter, Object)
void addNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException
Adds a listener to a registered MBean.
A notification emitted by an MBean will be forwarded by the MBeanServer to the listener. If the source of the notification is a reference to an MBean object, the MBean server will replace it by that MBean's ObjectName. Otherwise the source is unchanged.
The listener object that receives notifications is the one that is registered with the given name at the time this method is called. Even if it is subsequently unregistered, it will continue to receive notifications.
addNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be added.listener
- The object name of the listener which will
handle the notifications emitted by the registered MBean.filter
- The filter object. If filter is null, no
filtering will be performed before handling notifications.handback
- The context to be sent to the listener when a
notification is emitted.RuntimeOperationsException
- Wraps an IllegalArgumentException
. The MBean named by
listener
exists but does not implement the NotificationListener
interface.InstanceNotFoundException
- The MBean name of the
notification listener or of the notification broadcaster does
not match any of the registered MBeans.MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName)
,
MBeanServerConnection.removeNotificationListener(ObjectName, ObjectName,
NotificationFilter, Object)
void removeNotificationListener(ObjectName name, ObjectName listener) throws InstanceNotFoundException, ListenerNotFoundException
MBeanServerConnection
If the listener is registered more than once, perhaps with different filters or callbacks, this method will remove all those registrations.
removeNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be removed.listener
- The object name of the listener to be removed.InstanceNotFoundException
- The MBean name provided
does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not
registered in the MBean.MBeanServerConnection.addNotificationListener(ObjectName, ObjectName,
NotificationFilter, Object)
void removeNotificationListener(ObjectName name, ObjectName listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
MBeanServerConnection
Removes a listener from a registered MBean.
The MBean must have a listener that exactly matches the
given listener
, filter
, and
handback
parameters. If there is more than one
such listener, only one is removed.
The filter
and handback
parameters
may be null if and only if they are null in a listener to be
removed.
removeNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be removed.listener
- The object name of the listener to be removed.filter
- The filter that was specified when the listener
was added.handback
- The handback that was specified when the
listener was added.InstanceNotFoundException
- The MBean name provided
does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not
registered in the MBean, or it is not registered with the given
filter and handback.MBeanServerConnection.addNotificationListener(ObjectName, ObjectName,
NotificationFilter, Object)
void removeNotificationListener(ObjectName name, NotificationListener listener) throws InstanceNotFoundException, ListenerNotFoundException
MBeanServerConnection
Removes a listener from a registered MBean.
If the listener is registered more than once, perhaps with different filters or callbacks, this method will remove all those registrations.
removeNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be removed.listener
- The listener to be removed.InstanceNotFoundException
- The MBean name provided
does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not
registered in the MBean.MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener,
NotificationFilter, Object)
void removeNotificationListener(ObjectName name, NotificationListener listener, NotificationFilter filter, Object handback) throws InstanceNotFoundException, ListenerNotFoundException
MBeanServerConnection
Removes a listener from a registered MBean.
The MBean must have a listener that exactly matches the
given listener
, filter
, and
handback
parameters. If there is more than one
such listener, only one is removed.
The filter
and handback
parameters
may be null if and only if they are null in a listener to be
removed.
removeNotificationListener
in interface MBeanServerConnection
name
- The name of the MBean on which the listener should
be removed.listener
- The listener to be removed.filter
- The filter that was specified when the listener
was added.handback
- The handback that was specified when the
listener was added.InstanceNotFoundException
- The MBean name provided
does not match any of the registered MBeans.ListenerNotFoundException
- The listener is not
registered in the MBean, or it is not registered with the given
filter and handback.MBeanServerConnection.addNotificationListener(ObjectName, NotificationListener,
NotificationFilter, Object)
MBeanInfo getMBeanInfo(ObjectName name) throws InstanceNotFoundException, IntrospectionException, ReflectionException
MBeanServerConnection
getMBeanInfo
in interface MBeanServerConnection
name
- The name of the MBean to analyzeMBeanInfo
allowing the
retrieval of all attributes and operations of this MBean.InstanceNotFoundException
- The MBean specified was
not found.IntrospectionException
- An exception occurred during
introspection.ReflectionException
- An exception occurred when
trying to invoke the getMBeanInfo of a Dynamic MBean.boolean isInstanceOf(ObjectName name, String className) throws InstanceNotFoundException
MBeanServerConnection
Returns true if the MBean specified is an instance of the specified class, false otherwise.
If name
does not name an MBean, this method
throws InstanceNotFoundException
.
Otherwise, let
X be the MBean named by name
,
L be the ClassLoader of X,
N be the class name in X's MBeanInfo
.
If N equals className
, the result is true.
Otherwise, if L successfully loads className
and X is an instance of this class, the result is true.
Otherwise, if L successfully loads both N and
className
, and the second class is assignable from
the first, the result is true.
Otherwise, the result is false.
isInstanceOf
in interface MBeanServerConnection
name
- The ObjectName
of the MBean.className
- The name of the class.InstanceNotFoundException
- The MBean specified is not
registered in the MBean server.Class.isInstance(java.lang.Object)
Object instantiate(String className) throws ReflectionException, MBeanException
Instantiates an object using the list of all class loaders
registered in the MBean server's Class Loader
Repository
. The object's class should have a public
constructor. This method returns a reference to the newly
created object. The newly created object is not registered in
the MBean server.
This method is equivalent to instantiate(className, (Object[]) null, (String[]) null)
.
className
- The class name of the object to be instantiated.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionRuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null.Object instantiate(String className, ObjectName loaderName) throws ReflectionException, MBeanException, InstanceNotFoundException
Instantiates an object using the class Loader specified by its
ObjectName
. If the loader name is null, the
ClassLoader that loaded the MBean Server will be used. The
object's class should have a public constructor. This method
returns a reference to the newly created object. The newly
created object is not registered in the MBean server.
This method is equivalent to instantiate(className, loaderName, (Object[]) null, (String[])
null)
.
className
- The class name of the MBean to be instantiated.loaderName
- The object name of the class loader to be used.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exception.InstanceNotFoundException
- The specified class loader
is not registered in the MBeanServer.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null.Object instantiate(String className, Object[] params, String[] signature) throws ReflectionException, MBeanException
Instantiates an object using the list of all class loaders
registered in the MBean server Class Loader
Repository
. The object's class should have a public
constructor. The call returns a reference to the newly created
object. The newly created object is not registered in the
MBean server.
className
- The class name of the object to be instantiated.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.ReflectionException
- Wraps a
java.lang.ClassNotFoundException
or the
java.lang.Exception
that occurred when trying to
invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionRuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null.Object instantiate(String className, ObjectName loaderName, Object[] params, String[] signature) throws ReflectionException, MBeanException, InstanceNotFoundException
Instantiates an object. The class loader to be used is identified by its object name. If the object name of the loader is null, the ClassLoader that loaded the MBean server will be used. The object's class should have a public constructor. The call returns a reference to the newly created object. The newly created object is not registered in the MBean server.
className
- The class name of the object to be instantiated.params
- An array containing the parameters of the
constructor to be invoked.signature
- An array containing the signature of the
constructor to be invoked.loaderName
- The object name of the class loader to be used.ReflectionException
- Wraps a java.lang.ClassNotFoundException
or the java.lang.Exception
that
occurred when trying to invoke the object's constructor.MBeanException
- The constructor of the object has
thrown an exceptionInstanceNotFoundException
- The specified class loader
is not registered in the MBean server.RuntimeOperationsException
- Wraps a
java.lang.IllegalArgumentException
: The className
passed in parameter is null.@Deprecated ObjectInputStream deserialize(ObjectName name, byte[] data) throws InstanceNotFoundException, OperationsException
getClassLoaderFor
to
obtain the appropriate class loader for deserialization.De-serializes a byte array in the context of the class loader of an MBean.
name
- The name of the MBean whose class loader should be
used for the de-serialization.data
- The byte array to be de-sererialized.InstanceNotFoundException
- The MBean specified is not
found.OperationsException
- Any of the usual Input/Output
related exceptions.@Deprecated ObjectInputStream deserialize(String className, byte[] data) throws OperationsException, ReflectionException
getClassLoaderRepository()
to obtain the
class loader repository and use it to deserialize.De-serializes a byte array in the context of a given MBean
class loader. The class loader is found by loading the class
className
through the Class Loader
Repository
. The resultant class's class loader is the one to
use.
className
- The name of the class whose class loader should be
used for the de-serialization.data
- The byte array to be de-sererialized.OperationsException
- Any of the usual Input/Output
related exceptions.ReflectionException
- The specified class could not be
loaded by the class loader repository@Deprecated ObjectInputStream deserialize(String className, ObjectName loaderName, byte[] data) throws InstanceNotFoundException, OperationsException, ReflectionException
getClassLoader
to obtain
the class loader for deserialization.De-serializes a byte array in the context of a given MBean class loader. The class loader is the one that loaded the class with name "className". The name of the class loader to be used for loading the specified class is specified. If null, the MBean Server's class loader will be used.
className
- The name of the class whose class loader should be
used for the de-serialization.data
- The byte array to be de-sererialized.loaderName
- The name of the class loader to be used for
loading the specified class. If null, the MBean Server's class
loader will be used.InstanceNotFoundException
- The specified class loader
MBean is not found.OperationsException
- Any of the usual Input/Output
related exceptions.ReflectionException
- The specified class could not be
loaded by the specified class loader.ClassLoader getClassLoaderFor(ObjectName mbeanName) throws InstanceNotFoundException
Return the ClassLoader
that was used for
loading the class of the named MBean.
mbeanName
- The ObjectName of the MBean..loadClass(s)
is the
same as l.loadClass(s)
for any string s.
InstanceNotFoundException
- if the named MBean is not found.ClassLoader getClassLoader(ObjectName loaderName) throws InstanceNotFoundException
Return the named ClassLoader
.
loaderName
- The ObjectName of the ClassLoader. May be
null, in which case the MBean server's own ClassLoader is
returned..loadClass(s)
is the
same as l.loadClass(s)
for any string s.
InstanceNotFoundException
- if the named ClassLoader is
not found.ClassLoaderRepository getClassLoaderRepository()
Return the ClassLoaderRepository for this MBeanServer.
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2015, Oracle and/or its affiliates. All rights reserved.


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BigSwitch L1 Driver
Provides basic commands for management of BigSwitch L1 switches.
Tags: L1
1 QuickCall Library in project://ri_l1_bigswitch
1 Procedure Library in project://ri_l1_bigswitch
connect
| Argument |
Description |
| port1 |
|
| port2 |
|
| switch_id |
|
disconnect
| Argument |
Description |
| port1 |
|
| port2 |
|
| switch_id |
|
getPorts
| Argument |
Description |
| switch_id |
|
getPortState
| Argument |
Description |
| switch_id |
|
| interface |
|
getPortsAndStates
| Argument |
Description |
| switch_id |
|
getProperties
createChainName
| Argument |
Description |
| port1 |
|
| port2 |
|
| switch_id |
|
getPorts
getPorts returns JSON-formatted port information. For this driver, we are only concerned with ports in the "up" state. It ignores any other state.
connect
disconnect
getProperties
getPortContainer
| Argument |
Description |
| switch_id |
|
addPropToResult
| Argument |
Description |
| json |
|
| name |
|
| val |
|


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| Interface | Description |
|---|---|
| Deletable |
Marks resources that have to be deleted after use.
|
| Overlay |
Interface for game overlays which can be added to the Screen class.
|
| Class | Description |
|---|---|
| InputEvent |
Represents an input event.
|
| Log |
Manages error and warning messages.
|
| Loop |
A generic loop facility.
|
| Screen |
Handles the screen output and related features, the input and the game loop.
|
| Settings |
The game settings, which have to be set before the Screen.open call.
|


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DEVELOPER INFO
GENERAL INFORMATION
XSCHEM uses layers for its graphics, each layer is a logical entity defining graphic attributes like color and fill style. There are very few graphical primitive objects:
- Lines
- Rectangles
- Open / close Polygons
- Arcs / Circles
- Text
These primitive objects can be drawn on any layer. XSCHEM number of layers can be defined at compile time, however there are some predefiend layers (from 0 to 5) that have specific functions:
- Background color
- Wire color (nets)
- Selection color / grid
- Text color
- Symbol drawing color
- Pin color
- General purpose
- General purpose
- General purpose
....
- General purpose
- General purpose
Although any layer can be used for drawing it is strongly advisable to avoid the background color and the selection color to avoid confusion. Drawing begins by painting the background (layer 0), then drawing the grid (layer 1) then drawing wires (nets) on layer 2, then all graphical objects (lines, rectangles, polygons) starting form layer 0 to the last defined layer.
SYMBOLS
There is a primitive object called symbol. Symbols are just a group of primitive graphic objects (lines, polygons, rectangles, text) that can be shown as a single atomic entity. Once created a symbol can be placed in a schematic. The instantiation of a symbol is called 'component'.
The above picture shows a resistor symbol, built drawing some lines on layer 4 (green), some pins on layer 5 (red) and some text. Symbols once created are stored in libraries (library is just a UNIX directory known to XSCHEM) and can be placed like just any other primitive object multiple times in a schematic window with different orientations.
WIRES
Another special primitive object in XSCHEM is 'Wire', Graphically it is drawn as a line on layer 1 (wires). Wires are drawn only on this layer, they are treated differently by XSCHEM since they carry electrical information. Electrical connection between components is done by drawing a connecting wire.
Since wires are used to build the circuit connectivity it is best to avoid drawing lines on layer 1 to avoid confusion, since they would appear like wires, but ignored completely for electrical connectivity.
PROPERTIES
All XSCHEM objects (wires, lines, rectangles, polygons, text, symbol instance aka component) have a property string attached. Any text can be present in a property string, however in most cases the property string is organized as a set of key=value pairs separated by white space. In addition to object properties the schematic or symbol view has global properties attached. There is one global property defined per netlisting mode (currently SPICE, VHDL, Verilog, tEDAx) and one additional global property for symbols (containing the netlisting rules usually). See the XSCHEM properties section of the manual for more info.
COORDINATE SYSTEM
XSCHEM coordinates are stored as double precision floating point numbers, axis orientation is the same as Xorg default coordinate orientation:
When drawing objecs in XSCHEM coordinates are snapped to a multiple of 10.0 coordinate units, so all drawn objects are easily aligned. The snap level can be changed to any value by the user to allow drawing small objects if desired. Grid points are shown at multiples of 20.0 coordinate units, by default.
XSCHEM FILE FORMAT SPECIFICATION
XSCHEM schematics and symbols are stored in .sch and .sym files respectively. The two file formats are identical, with the exception that symbol (.sym) files usually do not contain wires and component instantiations (although they can).
every schematic/symbol object has a corresponding record in the file. A single character at the beginning of a line, separated by white space from subsequent fields marks the type of object:
- v : XSCHEM Version string
- S : Global property associated to the .sch file for SPICE netlisting
- V : Global property associated to the .sch file for VERILOG netlisting
- G : Global property associated to the .sch file for VHDL netlisting OR Global property associated to the .sym file for netlisting (in 1,2 file format K is used, although backward compatibility is guaranteed)
- E : Global property associated to the .sch file for tEDAx netlisting
- K : Global property associated to the .sch/sym file for netlisting.
For schematic it is used if instantiated as a component (file format 1.2 and newer) - L : Line
- B : Rectangle
- P : Open / Closed polygon
- A : Arc / Circle
- T : Text
- N : Wire, used to connect together components (only in .sch files)
- C : Component instance in a schematic (only in .sch files)
- [ : Start of a symbol embedding, the symbol refers to the immediately preceding component instance. This tag must immediately follow a component instance (C). See the example here under. A component symbol is embedded into the schematic file when saving if the embed=true attribute is set on one of the component instances. Only one copy of the embedded symbol is saved into the schematic and all components referring to this symbol will use the embedded definition. When a component has an embedded symbol definition immediately following, a embed=true is added to the component property string if not already present.
C {TECHLIB/PCH} 620 -810 0 0 {name=x5 model=PCHLV w=4 l=0.09 m=1 embed=true} [ G {type=pmos format="@name @pinlist @model w=@w l=@l m=@m" verilog_format="@verilog_gate #(@del ) @name ( @@d , @@s , @@g );" template=" name=x1 verilog_gate=pmos del=50,50,50 model=PCH w=0.68 l=0.07 m=1 " generic_type="model=string" } V {} S {} E {} L 4 5 20 20 20 {} L 4 20 20 20 30 {} L 4 5 -20 20 -20 {} L 4 20 -30 20 -20 {} L 4 -20 0 -10 0 {} L 4 5 -27.5 5 27.5 {11} L 4 5 -5 10 0 {} L 4 5 5 10 0 {} L 4 10 0 20 0 {} L 18 -2.5 -15 -2.5 15 {} B 5 17.5 27.5 22.5 32.5 {name=d dir=inout} B 5 -22.5 -2.5 -17.5 2.5 {name=g dir=in} B 5 17.5 -32.5 22.5 -27.5 {name=s dir=inout} B 5 17.5 -2.5 22.5 2.5 {name=b dir=in} A 4 -6.25 0 3.75 270 360 {} T {@w/@l*@m} 7.5 -17.5 0 0 0.2 0.2 {} T {@name} 7.5 6.25 0 0 0.2 0.2 {999} T {@model} 2.5 -27.5 0 1 0.2 0.2 {layer=8} T {D} 25 17.5 0 0 0.15 0.15 {layer=13} T {NF=@nf} -5 -15 0 1 0.15 0.15 {} ]
the object tag in column 1 is followed by space separated fields that completely define the corresponding object.
VERSION STRING
Example:
v {xschem version=2.9.7 file_version=1.2}
Two attributes are defined, the xschem version and the file format version. Current file format version is 1.2. This string is guaranteed to be the first one in XSCHEM .sch and .sym files.
GLOBAL SCHEMATIC/SYMBOL PROPERTIES
Example:
G {type=regulator
format="x@name @pinlist r@symname"
verilog_format="assign @#2 = @#0 ;"
tedax_format="footprint @name @footprint
device @name @symname"
template="name=U1 footprint=TO220"}
Global properties define a property string bound to the parent schematic/symbol file,
there is one global property record per netlisting mode,
currently SPICE, VHDL, Verilog, tEDAx.
In addition (only in file_format 1.2 and newer) for schematics and symbols there is a global attribute ('K')
that defines how to netlist the schematic/symbol if placed as a
symbol into another parent schematic (should be set in the same way as the 'G' global attribute for symbols
in pre-1.2 file format).
Normally only 'G' ('K' in 1.2 file format) type property strings are used for symbols and define attributes
telling netlisters what to do with the symbol, while global property
strings in schematic files corresponding to the active netlisting mode of XSCHEM are
copied verbatim to the netlist.
the object tag (S, V, G, E, K) is followed by the property string enclosed in curly braces
({...}). This allows strings to contain any white space and newlines.
Curly braces if present in the string are automatically escaped with the '\' character
by XSCHEM when saving data.
Example of the 4 property string records for a schematic file:
G {}
V {assign #1500 LDOUT = LDIN +1;
}
E {}
S {}
in this case only the verilog-related global property has some definition. This is Verilog code that is copied into the output netlist.
TEXT OBJECT
Example: T {3 of 4 NANDS of a 74ls00} 500 -580 0 0 0.4 0.4 {font=Monospace layer=4}
This line defines a text object, the first field after the type tag is the displayed text,
followed by X and Y coordinates,rotation, mirror,
horizontal and vertical text size and finally a property string defining some text attributes.
- The displayed text is enclosed in curly braces ({...}) to allow white space. Literal curly braces must be escaped if present in the saved string. XSCHEM will automatically add the escapes where needed on save.
- X ad Y coordinates are saved and retrieved as double precision floating point numbers.
- Rotation and mirror are integers (range [0:3], [0:1] respectively) that define the orientation of text objects. Using rotation and mirror text can be aligned to any corner of its bounding box, so there are 4 different alignments for vertical text and 4 different alignments for horizontal text. Below picture shows how text is displayed with respect to its anchor point.
- text X and Y sizes are stored as floating point numbers.
- Finally a property string is stored with the same syntax as the displayed text field.
Currently the following attributes are predefined for text objects:
- font Name of font to be used (ex: font=Arial)
- layer Number of layer to use for drawing (as in Xschem Layers menu)
- hcenter If set to true horizontal center text
- vcenter If set to true vertical center text
- weight If set to bold use bold style
- slant If set to italic or oblique use that style for text
WIRE OBJECT
Example: N 890 -130 890 -110 {lab=ANALOG_GND}
The net 'N' tag is followed by the end point coordinates x1,y1 - x2,y2
(stored and read as double precision numbers) and a property string, used in this case to name the net.
LINE OBJECT
Example: L 4 -50 20 50 20 {This is a line on layer 4}
The line 'L' tag is followed by an integer specifying the graphic layer
followed by the x1,y1 - x2,y2 coordinates of the line and a property string.
RECTANGLE OBJECT
Example: B 5 -62.5 -2.5 -57.5 2.5 {name=IN dir=in pinnumber=1}
The 'Box' 'B' tag is followed by an integer specifying the graphic layer followed
by the x1,y1 - x2,y2 coordinates of the rectangle
and a final property string. This example defines a symbol pin.
OPEN / CLOSED POLYGON OBJECT
Example: P 3 5 2450 -210 2460 -170 2500 -170 2510 -210 2450 -210 {}
the Polygon 'P' tag is followed by an integer specifying the layer number,
followed by the number of points (integer),
the x,y coordinates of the polygon points and the property string (empty in this example).
If the last point is coincident to the first point a closed polygon is drawn.
A 'fill=true' arribute may be given to fill a cloded polygon, in this case a polygon line looks like:
P 3 5 2450 -210 2460 -170 2500 -170 2510 -210 2450 -210 {fill=true}
ARC OBJECT
Example: A 3 450 -210 120 45 225 {}
The Arc 'A' tag is followed by an integer specifying the layer number, followed by the arc x, y center coordinates,
the arc radius, the start angle (measured counterclockwise from the three o'clock direction), the arc sweep angle
(measured counterclockwise from the start angle) and the property string (empty in this example).
Angles are measured in degrees.
COMPONENT INSTANCE
Example: C {capa.sym} 890 -160 0 0 {name=C4 m=1 value=10u device="tantalium capacitor"}
Format: C {<symbol reference>} <X coord> <Y coord> <rotation>
<flip> {<attributes>}
The component instance tag C is followed by a string specifying library/symbol or only symbol
(see This tutorial about symbol references)
followed by the x,y coordinates, rotation (integer range [0:3]),
mirror (integer range [0:1]), and a property string defining various attributes
including the mandatory name=... attribute.
Orientation and mirror meanings are as follows:
EXAMPLE OF A COMPLETE SYMBOL FILE (7805.sym)
G {type=regulator format="x@name @pinlist r@symname" verilog_format="assign @#2 = @#0 ;" tedax_format="footprint @name @footprint device @name @symname" template="name=U1 footprint=TO220"} V {} S {} E {} L 4 -60 0 -50 0 {} L 4 50 0 60 0 {} L 4 -50 -20 50 -20 {} L 4 50 -20 50 20 {} L 4 -50 20 50 20 {} L 4 -50 -20 -50 20 {} L 4 0 20 0 30 {} B 5 -62.5 -2.5 -57.5 2.5 {name=IN dir=in pinnumber=1} B 5 -2.5 27.5 2.5 32.5 {name=GND dir=inout pinnumber=2} B 5 57.5 -2.5 62.5 2.5 {name=OUT dir=out pinnumber=3} T {@name} -17.5 -15 0 0 0.2 0.2 {} T {@symname} -17.5 0 0 0 0.2 0.2 {} T {@#0:pinnumber} -47.5 -2.5 0 0 0.12 0.12 {} T {@#1:pinnumber} -2.5 12.5 0 0 0.12 0.12 {} T {@#2:pinnumber} 47.5 -2.5 0 1 0.12 0.12 {}
EXAMPLE OF A COMPLETE SCHEMATIC FILE (pcb_test1.sch)
G {} V {} S {} E {} B 20 270 -550 860 -290 {} T {3 of 4 NANDS of a 74ls00} 500 -580 0 0 0.4 0.4 {} T {EXPERIMENTAL schematic for generating a tEDAx netlist 1) set netlist mode to 'tEDAx' (Options menu -> tEDAx netlist) 2) press 'Netlist' button on the right 3) resulting netlist is in pcb_test1.tdx } 240 -730 0 0 0.5 0.5 {} N 230 -330 300 -330 {lab=INPUT_B} N 230 -370 300 -370 {lab=INPUT_A} N 680 -420 750 -420 {lab=B} N 680 -460 750 -460 {lab=A} N 400 -350 440 -350 {lab=B} N 850 -440 890 -440 {lab=OUTPUT_Y} N 230 -440 300 -440 {lab=INPUT_F} N 230 -480 300 -480 {lab=INPUT_E} N 400 -460 440 -460 {lab=A} N 550 -190 670 -190 {lab=VCCFILT} N 590 -130 590 -110 {lab=ANALOG_GND} N 790 -190 940 -190 {lab=VCC5} N 890 -130 890 -110 {lab=ANALOG_GND} N 730 -110 890 -110 {lab=ANALOG_GND} N 730 -160 730 -110 {lab=ANALOG_GND} N 590 -110 730 -110 {lab=ANALOG_GND} N 440 -460 680 -460 {lab=A} N 500 -420 680 -420 {lab=B} N 500 -420 500 -350 {lab=B} N 440 -350 500 -350 {lab=B} C {title.sym} 160 -30 0 0 {name=l2 author="Stefan"} C {74ls00.sym} 340 -350 0 0 {name=U1:2 risedel=100 falldel=200} C {74ls00.sym} 790 -440 0 0 {name=U1:1 risedel=100 falldel=200} C {lab_pin.sym} 890 -440 0 1 {name=p0 lab=OUTPUT_Y} C {capa.sym} 590 -160 0 0 {name=C0 m=1 value=100u device="electrolitic capacitor"} C {74ls00.sym} 340 -460 0 0 {name=U1:4 risedel=100 falldel=200 power=VCC5 url="http://www.engrcs.com/components/74LS00.pdf".sym} C {LM7805.pdf"} C {lab_pin.sym} 490 -190 0 0 {name=p20 lab=VCC12} C {lab_pin.sym} 940 -190 0 1 {name=p22 lab=VCC5} C {lab_pin.sym} 590 -110 0 0 {name=p23 lab=ANALOG_GND} C {capa.sym} 890 -160 0 0 {name=C4 m=1 value=10u device="tantalium capacitor"} C {res.sym} 520 -190 1 0 {name=R0 m=1 value=4.7 device="carbon resistor"} C {lab_wire.sym} 620 -460 0 0 {name=l3 lab=A} C {lab_wire.sym} 620 -420 0 0 {name=l0 lab=B} C {lab_wire.sym} 650 -190 0 0 {name=l1 lab=VCCFILT} C {connector.sym} 230 -370 0 0 {name=CONN1 lab=INPUT_A verilog_type=reg} C {connector.sym} 230 -330 0 0 {name=CONN2 lab=INPUT_B verilog_type=reg} C {connector.sym} 240 -190 0 0 { name=CONN3 lab=OUTPUT_Y } C {connector.sym} 230 -480 0 0 {name=CONN6 lab=INPUT_E verilog_type=reg} C {connector.sym} 230 -440 0 0 {name=CONN8 lab=INPUT_F verilog_type=reg} C {connector.sym} 240 -160 0 0 { name=CONN9 lab=VCC12 } C {connector.sym} 240 -130 0 0 { name=CONN14 lab=ANALOG_GND verilog_type=reg} C {connector.sym} 240 -100 0 0 { name=CONN15 lab=GND verilog_type=reg} C {code.sym} 1030 -280 0 0 {name=TESTBENCH_CODE only_toplevel=false value="initial begin $dumpfile(\\"dumpfile.vcd\\"); $dumpvars; INPUT_E=0; INPUT_F=0; INPUT_A=0; INPUT_B=0; ANALOG_GND=0; #10000; INPUT_A=1; INPUT_B=1; #10000; INPUT_E=1; INPUT_F=1; #10000; INPUT_F=0; #10000; INPUT_B=0; #10000; $finish; end assign VCC12=1; "} C {verilog_timescale.sym} 1050 -100 0 0 {name=s1 timestep="1ns" precision="1ns" }


Preparation time
over 2 hours
Cooking time
10 to 30 mins
Serves
Serves 6-8
Dietary
James Martin's homemade version of this retro classic is well worth the effort, but feel free to cheat with a good quality shop-bought jam.
For the sponge, beat the ice cream until softened then spoon into a 5cmx30cm/2inx12in long clean plastic or metal pipe. Place into the freezer and freeze for 3-4 hours, or until solid. Alternatively, soften slightly and place onto a sheet of baking parchment, then roll up and mould into a sausage 5cmx30cm/2inx12in long and freeze until solid.
Preheat the oven to 190C/375F/Gas 5 and line a 23cmx33cm/9inx13in Swiss roll tin with baking parchment.
Place the eggs and sugar into a bowl and whisk until very light, fluffy and thickened.
Sift the flour over the mixture and fold in carefully.
Pour into the lined tin and smooth with a spatula until evenly spread out.
Bake the sponge for 10-12 minutes, or until just firm to the touch.
Place a sheet of baking parchment that is slightly bigger than the tray onto the work surface and dust with some caster sugar.
Turn the sponge out onto the parchment paper, then peel off the parchment on the bottom of the sponge. Set aside to cool slightly.
For the strawberry jam, heat a frying pan until hot, then add the sugar, lemon zest and juice and cook for 3-4 minutes until the sugar has dissolved and slightly thickened.
Meanwhile place the strawberries into a food processor and pulse until very roughly chopped.
Add to the pan, mix well and cook the jam for a further 3-5 minutes until thick. Remove from the heat and set aside to cool.
To assemble the roll, spread the strawberry jam over the cooled sponge, leaving a 2cm/1in gap around the edge.
If the pipe used to set the ice cream is metal, run a blow torch over the pipe to release the ice cream or if plastic, dip in hot water to release the ice cream from the pipe.
Place the ice cream cylinder along the long side of the sponge, then using the parchment paper underneath, roll up the sponge so the ice cream is encased in sponge.
Roll the sponge off the parchment and cut into slices to serve.


Serializing Enumerations by Name
By default, the System.Text.Json
serializer will convert enumeration members to their numeric values. But suppose we're interacting with an API that expects named values. To do this, we need to tell the serializer how to convert the enum values into strings. This is the purpose of the EnumStringConverter<T>
class.
Let's assume that the API we're trying to talk with has a MemberType
enumeration with the values free-tier
, pro
, and enterprise
.
We can model this in our code with
enum MemberType
{
Default, // we don't want to default to a valid value
FreeTier,
Pro,
Enterprise
}
but as mentioned, this just renders as numbers in the JSON. Let's add the converter.
[JsonConverter(typeof(EnumStringConverter<MemberType>))]
enum MemberType
{
Default, // we don't want to default to a valid value
FreeTier,
Pro,
Enterprise
}
This will now render the values as they appear in the C# code, in PascalCase. Still not quite what the API needs. So let's add some DescriptionAttribute
s from the System.ComponentModel
namespace.
[JsonConverter(typeof(EnumStringConverter<MemberType>))]
enum MemberType
{
Default, // we don't want to default to a valid value
[Description("free-tier")]
FreeTier,
[Description("pro")]
Pro,
[Description("enterprise")]
Enterprise
}
Now the converter will use these strings for the corresponding vauues.
Flag Enums
When an enum has the [Flags]
attribute, the converter will output the flag values as a comma-delimited list of string values instead of just a single value. This covers the case where multiple values are "selected."
[Flags]
[JsonConverter(typeof(EnumStringConverter<SnowConeColors>))]
enum SnowConeColors
{
[Description("none")]
None = 0,
[Description("red")]
Red = 1,
[Description("orange")]
Orange = 2,
[Description("yellow")]
Yellow = 4,
[Description("green")]
Green = 8,
[Description("blue")]
Blue = 16,
[Description("purple")]
Purple = 32
}
In this case, when we want to serialize the enum value Orange | Green
, we'll get "green,orange"
in the serialization.


Who sings John Lewis advert song for this year and what is it a cover of?
John Lewis have teamed up with Waitrose for its Christmas 2019 advert starring Excitable Edgar the dragon
by Simon DukeIt's one of the festive season's mostly closely guarded secrets but we now know details of John Lewis' Christmas advert.
The department store lead the way year after year when it comes to seasonal ad campaigns and this year it has teamed up with Waitrose to tell the tale of Excitable Edgar the dragon.
The 2019 John Lewis Christmas advert follows on from popular ads from the past including The Bear & The Hare, The Man on the Moon and last year's Elton John life story.
The song that soundtracks the advert has become just as important as its contents and stars who have previously lent their vocals to John Lewis campaigns include Lily Allen, Ellie Goulding and Elbow, with covers of everything from Keane's Somewhere Only We Know to Randy Crawford's One Day I'll Fly Away being used.
The song for this year's advert is a cover of REO Speedwagon's epic 80s anthem Can't Fight This Feeling and you'll definitely know the singer - Bastille frontman Dan Smith.
When and where to see the advert
John Lewis and Waitrose are expected to share the ad across their social media channels from 6am on Thursday, and it first airs on television during ITV's X Factor Celebrity on Saturday November 16.