{% extends 'base.html' %} {% block content %} {% include 'navbar_prob_ampl.html' %}
The Schrodinger equation is a very famous equation that describes the evolution of systems in time. More precisely, it describes how a wavefunction changes in time when it is inside a Hamiltonian (ie. a potential). The equation with time dependence is typically quoted as follows: \[ i \hbar \frac{d}{d t}|\Psi(t)\rangle=\hat{H}|\Psi(t)\rangle \] We can break it down into its parts like so:
We can describe the evolution of LC circuits with the following Hamiltonian: \[ H = \frac{Q^2}{2C} + \frac{\Phi^2}{2L} \] Here we use \(Q\) to represent the charge in the circuit and \(\Phi\) to represent the magnetic flux in the circuit. \(C\) and \(L\) represent the capacitance and the inductance in the circuit. To turn this into a quantum mechanical Hamiltonian we denote the quantities \(Q\) and \(\Phi\) as operators \(\hat{Q}\) and \(\hat{\Phi}\). Now with this Hamiltonian we can see how the wavefunctions evolve.
Insert code here
When the capacitor is much bigger than the inductance (when \(C \gg L\)), the term involving the flux is going to be bigger than the term involving the charge. In physical terms, the circuit's energy is influenced more by the inductor than by the capacitor. We may find that the Hamiltonian looks like this:
Insert code here
Talk about the mechanical picture and how it seems like its evolution is in free-space
The Schrodinger equation is describes the evolution of quantum systems in time. One interesting question to ask if whether the Schrodinger equation has a diffusive nature to it. More precisely, what information about the behaivour of the Schrodinger equation can we get if we compare it to the Diffusion equation?
In the case of a free particle potential, where the capacitance of an LC circuit is much greater than its inductance, the Schrodinger equation looks like this: \[ i \hbar \frac{d}{d t}|\Psi(t)\rangle=\hat{H}|\Psi(t)\rangle \] \[ i \hbar \frac{d\Psi}{d t} = -\frac{\hbar^2}{2L} \frac{d^2 \Psi}{d\phi^2} \] \[ \frac{d\Psi}{d t} = \frac{i\hbar}{2L} \frac{d^2 \Psi}{d\phi^2} \]
In this case, the Schrodinger equation resembles the diffusion equation: \[ \frac{dT}{dt} = D \frac{d^2T}{dx^2} \] Comparing these two equations we might be able to suggest that \( i\frac{\hbar}{2L} \) could be analogous to \(D\) the diffusion coefficient for the schrodinger equation. The second similarity between these two equations is that a single derivative in time is related to a double derivative in the space coordinate. We can thus expect that there may be some similar behaivour between the two equations.
The diffusion equation is found in many physical and chemical systems. We have an understanding that particles diffuse from an area of high concentration to an area of low concentration. Lets see how this works:
It is really intersting to note that the evolution of the particles is very different depending on the initial distribution width. If the intial distribution is really narrow, then the particles will move very fast at the begining. Similarly, if the inital distribution is really wide then the particles will move very slow. We can conclude that the evolution of the distribution function is related to its curvature \( \frac{d^2T}{dx^2} \), which follows from the statement of the diffusion equation.
For the particles that diffuse in the box, the speed at which they move depends on where they are in the distribution. Near the centre of the distribution there are many closely packed particles which move very fast. At the edges there are loosely spaced particles that move slowly. We can conclude that the physical analogue of the curvature of the distribution is how closely packed the particles are at any given point in time.
When the distribution has evolved for a very long time we can see that the
Introduce the idea of a superposition of states. Explain how a state can be made from individua basis states
Insert code here
Introduce a bit more of the formalism behind coefficients in superpositions
Matrix representation
References:


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1. The bus driver was injured.(serious)
2. Kevin is clever.(extreme)
3. This hamburger tastes .(awful)
4. Be with this glass of milk.(careful)
5. Robin looks . What's the matter with him?(sad)
6. Jack is about losing his keys.(terrible)
7. This steak smells .(good)
8. Our basketball team played last friday.(bad)
9. Don't speak so . I can't understand you.(fast)
10. Maria opened her present.(slow)


This is the first of a series of posts where I will be covering CQRS, Event Sourcing and some Functional Programming. In this post we will concentrate on the functional foundation of CQRS and Event Sourcing in which I will explain the basic functions that supports the command side of CQRS.
But before we start I would like to mention another blog post from Mathias Verraes entitled A Functional Foundation for CQRS/ES. I discovered his blog not so long ago and wasn’t surprised to see the similarities to what I was doing in Fun.CQRS. This because CQRS and Event Sourcing is quite simple and it doesn’t take much to identify what are the basic operations (or functions) needed to support it. However, and that’s the main motivation of this blog, one must make some decisions when building a CQRS framework in order to cut the abstractions at the right place. My intention is therefore to explain how I have used and defined those same functions to build Fun.CQRS.
That said, this blog will explain which function we are looking for, how we can cut them in smaller functions and how they will look like in Scala. As already said, we will only focus on the command side of CQRS. We will dedicate another post for the query side.
Command Side
In it’s most simple form the command side of CQRS application can be defined as a model to which we can send Commands that are validated and if accepted may emit one or more Events. The model is often called an Aggregate which is a term borrowed from DDD, Domain Driven Design.
An Event expresses a mutation to the Aggregate itself and once emitted it’s applied to the Aggregate generating an updated version of it.
We can already spot two basic functions. One that validates the Command and one that applies the Event to the Aggregate.
We could defined them as follow…
type Events = Seq[Event]
Aggregate => Command => Events // validate and emits events
Aggregate => Event => Aggregate // apply and updates Aggregate state
// from which we can derive
Aggregate => Command => (Aggregate, Events)
The first function is usually called a Command Handler as it handles an incoming Command. The second is commonly refered as an Event Handler.
These functions are not yet what we want. There are a few missing bits. As we said, the Command Handler will validate the command and decide if Events should be emitted. One possible way of doing it is to return an empty list of Events, but that is not desirable. We want to inform the caller why the command was rejected. Therefore we need to wrap Events on a type that can express success or failure.
The command handler will therefore look like….
type Events = Seq[Event]
Aggregate => Command => F[Events]
// from which we can derive
Aggregate => Command => F[(Aggregate, Events)]
Note that the return type is encoded as F
, thus not yet defined. It can be any type that can express an error condition, it could be a Future
, a Try
, an Either
or an applicative like cats.Validated
or scalaz.Validation
. In which case proper aliasing would be required to comply with a type constructor with one parameter. How to do it is out-of-scope of this blog, so we will simply continue using F
and consider that it’s a type that can express a successful computation or a failure. We will later come back to it an explain why we keep it as F
.
F
can also be an Option
. In that case, the semantics is slightly different. Instead of returning an error we silently ignore the command. Very useful for idempotent Commands.
In the begining there is None
It turns out that we don’t have an Aggregate at the beginning. At some point an initial shot must be given to create the Aggregate. So, instead of modeling our functions as above, we should have:
type Events = Seq[Event]
type State = Option[Aggregate]
State => Command => F[Events]
State => Event => State
// from which we can derive
State => Command => F[(State, Events)]
Whenever we have a None
as value for State
, we say that we are handling a Seed Command or a Seed Event. Basically, given a None
and a Command we must decide if the conditions are met to emit the first Event that will effectivelly initialise the Aggregate. In other words, the Seed Command emits the Seed Event that moves the state from None
to Some[Aggregate]
.
The Event Handler requires some extra comment. Note that it is a function from State => Event => State
. However, in most of the cases we will transition from None
to a new Some[Aggregate]
or from Some[Aggregate]
to an updated Some[Aggregate]
. A transition from Some[Aggregate]
to None
although rare could be possible and would represent the equivalent of a hard delete.
The Event Handler is also a function perfectly suited for a foldLeft
where the accumulator is State
as we will see next.
An Aggregate aggregates its past
The shape of the Event Handler function reveals that an Aggregate is an accumulation of its past events. We start with a None
and a Seed Event, we generate the first Aggregate’s instance and subsequentially we update it by applying the next events to it, one by one.
val eventHandler: State => Event => State = ...
val pastEvents: Events = ...
pastEvents.foldLeft(None:State) { (agg, evt) => eventHandler(agg)(evt) }
An Aggregate’s past events represents its History that when foldLeft
re-builds the Aggregate. Therefore we can say that an Aggregate, in the presence of Event Handlers is equivalent to its History. Note that this has no relation with the notion of Equivalence Relation. The equivalence in this context is supported by the Event Handlers, without them it is not possible to re-build the Aggregate. Moreover, it is unidirectional. We can’t rebuild a History from an Aggregate. Well, technically we could, but it would be a fabrication not the real history.
For obvious reasons we can represent the History as Seq[Event]
and we can reformulate our functions to:
type History = Seq[Event]
History => Command => F[History]
History => Event => History
// from which we can derive,
type NewEvents = Seq[Event]
History => Command => F[(History, NewEvents)] // augmented history + new Events
// and finally
History => Command => F[History] // return new agumented history
There are a few interesting consequences when we express it on those terms.
Firstly, we can completely remove the Option[Aggregate]
. As a matter of fact an empty History is the equivalent of None:Option[Aggregate]
.
Secondly, the final function shows that we can replace (Aggregate, Events)
by History.
At that point we can conclude that the most fundamental function on the command side of Event Sourced application is:
History => Command => F[History]
And it boils down to:
given a previous History (may be empty) and a new Command, a new augmented History is produced or an error is returned.
… but that’s not so practical
We don’t want to work with a function like History => Command => F[History]
because it’s very hard to decide if a Command is valid or not without aggregating data.
Here the word “aggregate” is used with a slightly different meaning. So far we have been using the word Aggregate in the context of DDD, but in the context of Event Sourcing an Aggregate can be seen as a model that aggregates data in the same way of an accumulator in a foldLeft
operation. We need to reduce the History to something that we can reason about and make decisions upon. Hence, an aggregate aggregates its past.
That may sound surprising, but the sole purpose of the Command Side is to offer the means to identify what are the possible next events for a given Aggregate instance. It’s not about querying the state nor about a fancy CRUD model. It’s only about agumenting the History. That said, the only reason why we should bring an Aggregate into memory is to decide which Events may be emitted next, nothing else.
In that respect, a function like History => Command => F[History]
is essentially everything that is needed for the Command Side, but for practical reasons we will prefer the more explicit ones: State => Command => F[Events]
(Command Handler) and State => Event => State
(Event Handler).
Conclusion
We have described the shape of the two functions that are necessary to build the command side of an CQRS application, namely the Command Handler and the Event Handler.
We have seen that, based on these two functions we can define a more abstract one that represents the essence of a command model, ie: “given a previous History and a new Command, a new augmented History is produced or an error is returned”.
We can also conclude that in an Event Sourcing context, an Aggregate is an optimization that help us make business decisions based on previous events. At that point the two meanings of an aggregate converge. From a DDD perspective, an aggregate defines a consistency boundary enforced by business rules that guarantee the consistency of the model. From an Event Sourcing perspective, an aggregate is that accumulator (think foldLeft
) that reduces the history of past events to one single model.
On part 2 of this series I will continue in the “but-that-is-not-so-practical” mode and explain why definning Command Handlers and the Event Handlers can be tedious, especially when the state of our Aggregate is modelled as Option[Aggregate]
.


Notebooks
Story: Gargling
Gargling
Title
Gargling
Collection
Summary
Gargling forbidden by the Bushman mothers, for fear of evil consequences. In the Katkop dialect, by Díä!kwãin (L V.-20. 5569 rev. and 5570 rev.). Children are not allowed to 'play' at gargling, although they may wash their throats if necessary.


#
Chart Type
Bar Chart
Basic Chart with simple settings
Basic Chart with zoom enabled
Basic Chart with responsive enabled
Basic Chart with datarange
Basic Chart with description
Basic Chart with date and time
Basic Chart with Custom Categories and defined blocks (with end-date)
Basic Chart with Custom Categories and whitout defined blocks (without end-date)
Basic Chart with Custom Tick Format
Basic Chart with Custom Tooltip
Update Chart with new dataset
Complex Chart with some options and change after 2 sec
Bar Chart Descending
Basic Chart with simple settings and descending view
Complex Chart with some options and change descending view after 2 sec
Rhombus Chart
Basic Rhombus chart with simple settings
Cricle Chart
Basic Circle chart with simple settings


OOP Concepts
Variable Scope
26 July 2015
Quite simply, in this context 'scope' defines who can see or know about Ruby variables and their value. First, let's dispense with constants. They don't vary (or shouldn't) hence their name. They're also written in all uppercase which makes them appear BOSSY. Meanwhile that leaves bona fide variables to have one of four scopes: Global variables -- written $Like_so -- can be seen and touched anywhere by anyone. In contrast, local variables like like_this_one can only be seen in the local vicinity, ususally a block, or things that can inherit from that. Names used for local variables can be reused in lots of localities so a number called "tally" in a Class method will only be reachable from that method. Another "tally" in the main body is a different object, and for all we know could contain a string "ho!". Ho indeed. This leaves us with the twins, instance and class variables. @one_is_per_instance of the class. Each class object will have its own instance value. @@the_class_as_a_whole shares one single value of class variables. Let's compare. If I create a credit-card class, each object would need it's own distinct card-number value. But they all share the characteristic of being 16 digits long. If that value were encoded in a single class variable, all the objects in that class could know and use a new value, dynamically, simply by chainging the one instance of that class variable. There we have the variable scopes. But as we recently learned, it's better to conceive of variable data as message content available from methods that own the data variable. Ultimately, it may be the scope of the method that matters.


Bootstrap themes Clones
We try to repeat some beautiful websites with bootstrap framework.
This section is intended for informational/educational purposes only and should not be used in a production sites.
Thank you.
We try to repeat some beautiful websites with bootstrap framework.
This section is intended for informational/educational purposes only and should not be used in a production sites.


These are classes for styling form elements. It does not have the suffix -child
.
There are three types of styling for form elements:
wd-label
wd-input
wd-button
There are two possibilities for styling for forms:
wd-vform
(vertical)wd-hform
(horizontal)The types radio
and checkbox
must be within a label element. In the color
input type, the wd-button
class should be used instead of wd-input
.
There are two possibilities for adding alert or help messages to form elements:
wd-input-help
wd-input-warn
Elements with warning or help messages must be siblings of the input element, whose class attribute must contain the wd-input
class, and must be positioned after the reference element.
Alert messages will be displayed when the reference element contains an invalid value. Help messages will be displayed when the reference element has focus.


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WEEK 1 THURSDAY
Year 1 (Year 2)
FIRST READING Hebrews 3:7-14
A reading from the Letter to the Hebrews
Brethren: As the Holy Spirit says, "Today,
when you hear his voice, do not harden your hearts as in the rebellion, on the day
of testing in the wilderness, where your fathers put me to the test and saw my
works for forty years. Therefore I was provoked with that generation, and said,
'They always go astray in their hearts; they have not known my ways.' As I
swore in my wrath, 'They shall never enter my
rest.'" Take care, brethren, lest there be in any of you an evil,
unbelieving heart, leading you to fall away from the living God. But exhort one
another every day, as long as it is called "today," that none of you
may be hardened by the deceitfulness of sin. For we share in Christ, if only we
hold our first confidence firm to the end.
The word of the Lord
RESPONSORIAL PSALM Psalm 95
R. O that today you would listen to his voice! Harden not your hearts.
O come; let us bow and bend low. Let us kneel
before the God who made us, for he is our God and we the people who belong to
his pasture, the flock that is led by his hand.
R. O that today you would listen to his voice! Harden
not your hearts.
O that today you would listen to his voice! Harden
not your hearts as at Meribah, as on that day at Massah in the desert when your forebears put me to the
test; when they tried me, though they saw my work.
R. O that today you would listen to his voice! Harden
not your hearts.
For forty years I wearied of that generation, and I
said: 'Their hearts are astray; these people do not know my ways.' Then I took
an oath in my anger, 'Never shall they enter my rest.'
R. O that today you would listen to his voice! Harden
not your hearts.
FIRST READING 1 Samuel 4:1-11
A reading from the first Book of Samuel
It happened that in those days
The word of the Lord
RESPONSORIAL PSALM Psalm 44
R. Redeem us, O Lord, with your merciful love!
Yet now you have rejected us, disgraced us; you no
longer go forth with our armies. You make us retreat from the foe; those who
hate us plunder us at will.
R. Redeem us, O Lord, with your merciful love!
You make us the taunt of our neighbours, the
mockery and scorn of those around us. Among the nations you make us a byword; among
the peoples they shake their heads.
R. Redeem us, O Lord, with your merciful love!
Awake, O Lord! Why do you sleep? Arise! Do not reject
us for ever.
R. Redeem us, O Lord, with your merciful love!
R. Alleluia. Jesus was preaching the Gospel of the Kingdom and healing every infirmity among the people. R. Alleluia.
GOSPEL Mark 1:40-45
A reading from the holy Gospel according to Mark
At that time: A leper came to Jesus begging him, and
kneeling said to him, "If you will, you can make me clean." Moved
with pity, he stretched out his hand and touched him, and said to him, "I
will; be clean." And immediately the leprosy left him, and he was made
clean. And he sternly charged him, and sent him away at once, and said to him,
"See that you say nothing to any one; but go, show yourself to the priest,
and offer for your cleansing what Moses commanded, for a proof to the
people." But he went out and began to talk freely about it,
and to spread the news, so that Jesus could no longer openly enter a town, but
was out in the country; and people came to him from every quarter.
The Gospel of the Lord


Identification of a point mutation in the adenosine deaminase gene responsible for immunodeficiency.
Deficiency of adenosine deaminase (ADA) is the cause of an autosomal recessive form of immunodeficiency. We sought to define, at a molecular level, the mutations responsible for ADA deficiency in the cell line GM-1715, derived from an immunodeficient patient. Full-length complementary DNA (cDNA) for ADA was synthesized and cloned from the cell line. Sequence analysis of the clones revealed a point mutation in codon 101 (CGG to CAG) that predicts an amino acid change from arginine to glutamine. Southern blot analysis, based on silent polymorphisms in the cDNA sequence, indicated that only one of the defective alleles of the GM-1715 line had been sequenced. The mutation that was identified appears to be responsible for the loss of function in this allele, since the predicted primary structure of the enzyme is otherwise entirely normal.


Analogy for HTML, CSS, & DOM
I tend to think of these three components in terms of a human body. HTML would be the bones, giving basic structure and cohesion to the form. CSS could be described as the organs, creating more functionality in the body. The DOM could be the lifeblood, or the way the system integrats and flows!
Defining the Boxify Design
The boxify design is a way of looking at all media design as a series of boxes, with smaller ones nested into larger ones. Together these create complex organization in a very simple manner.
What is the Box Model?
The Box Model is a way of taking a design template and starting to institute ways of constructing it by first deconstructing it into boxes (boxify).


Dr Ruth Pastry has written in to bemoan the passing of our popular “Decoy Duck of the Week” feature. I can understand, she writes, That you may have become bored of decoy ducks, but surely this is no excuse to deprive your readers of the pleasures of a regular pictorial series? I used to look forward with eagerness to the weekly duck, print it out on a colour laser printer, and paste it into an album that I bought especially. Now I'm left with lots and lots of empty pages. Please either reinstitute the decoy duck series, or start a new one. How about “Plasticine Cow of the Week?” I am pleased to inform Dr Pastry that the Hooting Yard staff member with responsibility for plasticine farmyard animals is “on the case”, as it were. Meanwhile, here is the first Pencil of the Month.


the first true generator on the Internet. It uses adictionary of over 200 Latin words, combined witha handful of model sentence structures, togenerate Lorem Ipsum which looks reasonable. The generated Lorem
the first true generator on the Internet. It uses adictionary of over 200 Latin words, combined witha handful of model sentence structures, togenerate Lorem Ipsum which looks reasonable. The generated Lorem
content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text,
It is a long established fact that a reader will be distracted by the readable content
It is a long established fact that a reader will be distracted by the readable content
It is a long established fact that a reader will be distracted by the readable content


| Clinical Assessment |
|
|
| Mode of Admission: |
Elective |
| Presenting Complaint: |
Biopsy proven BCC left temple and BCC chest
under LA |
| Name of Surgeon performing Surgery: |
T Test |
| Procedure 1: |
Excision biopsy proven BCC left temple and BCC
chest under LA |
| Clinical Details: |
La 2% Lignocaine with 1:200,000 Adr BCC Left
temple biopsy proven excised 3-4mm margin down to subcut fat - Skin
closure 4/0 Nylon. For ROS 7d. BCC chest excised 3-4mm margin down to
subcut fat - Skin closure 4/0 Nylon. For ROS 10d. |
| Histology / Biopsies Taken: |
BCC Left temple biopsy proven excised 3-4mm
margin down to subcut fat - 12olcock marker suture BCC chest excised 3-4mm
margin down to subcut fat - 12olcock marker suture |


Remembrance Sunday: Boris Johnson pictured laying wreath on Cenotaph upside down
The Prime Minister appeared to make a minor gaffe as hundreds gathered to remember the dead on Whitehall
by Dan Bloom, https://www.facebook.com/mirrordanbloomBoris Johnson was pictured laying a poppy wreath upside down on the Cenotaph during today's National Service of Remembrance in London.
The Prime Minister made the apparent minor gaffe as he paid tribute beside Jeremy Corbyn and other party leaders, who halted election campaigning for Remembrance Sunday.
His handwritten message, pinned to the top of his poppy wreath, said: "To the immortal memory of those who laid down their lives for us all."
However, when he approached the war memorial on Whitehall, video coverage showed him turning the wreath over, apparently by accident, which meant his message ended up at the bottom of the wreath and upside down.
Other political leaders, including the Home and Foreign Secretaries, then laid their wreaths next to his with the messages at the top, not the bottom.
The position of the wreath attracted comment on social media. One Twitter user said the act was "baffling".
Others pointed out that Jeremy Corbyn has faced criticism in the media in previous years for similar such minor indiscretions as wearing a small poppy and a "scruffy" coat, or failing to bow his head deeply enough.
It was unclear whether the wreath was later turned the right way up.
Separately BBC footage also showed Mr Johnson stepping forward apparently a few seconds too early, before stepping back, then stepping forward for a second time.
Jeremy Corbyn was criticised by some on social media last night for not attending the Festival or Remembrance at London's Royal Albert Hall.
However, aides said he was on his way back from meeting people affected by flooding in South Yorkshire, and Shadow Foreign Secretary Emily Thornberry attended on his behalf.
Mr Corbyn's message said: "In memory of all those who have died in war. Let us strive for a world of peace."
The Leaders of the Lib Dems, SNP , DUP, Commons and Lords also attended today's service alongside the Duke of Cambridge, Duke of Sussex, Duke of York, the Earl of Wessex, the Princess Royal and the Duke of Kent.
A uniformed Prince of Wales was the first to place a wreath of poppies at the foot of the memorial on behalf of the Queen.
The Queen, dressed in black, shed a tear as she looked on from a balcony of the Foreign and Commonwealth Office, flanked by the Duchess of Cambridge and Duchess of Cornwall.
An equerry laid a wreath on behalf of the Duke of Edinburgh who was not present at the ceremony for the second year in a row after having retired from royal duties in 2017.
More than 800 armed forces personnel congregated on Whitehall to form a hollow square around the Cenotaph.
As Big Ben struck 11am, the traditional two-minute silence was observed by dignitaries and the crowd of thousands of poppy-wearers lined up along Whitehall.
The start and end of the short period of reflection for those killed in conflicts past and present was marked by the firing of a gun by the King's Troop Royal Horse Artillery, positioned on Horse Guards Parade.
This year marks 100 years since the first two-minute silence was observed on Armistice Day on November 11 1919.
For the first time, the Ambassador of Nepal placed a wreath in honour of the contribution Gurkha regiments have made to Britain's military campaigns for the past 200 years.
Five former prime ministers - Sir John Major, Tony Blair , Gordon Brown, David Cameron and Theresa May - as well as Mayor of London Sadiq Khan , were also present to pay their respects.


---
layout: default
permalink: /what-drives-me/
---
What I'm looking for in my work
Dynamic/Challenging Environment - while I've only worked in two companies over my 13 year IT career, I've changed my career focus about every two years. Sometimes because what I was doing wasn't the best fit - but always because I need to be continually challenged. I want (/"need") to be challenged on a continual basis.
Being able to apply creativity throughout the entire software development process - from user analysis research, to database / schema modelling, to the tests, all the way through putting the final interaction design pieces in. (while I feel I understand the tenents and advantages of TDD, it goes against the very core of how I develop for the user first
I love designing great software for users - that process for me includes learning as much as I can about the user - their thoughts, their needs, and generally their problemset. I like to develop a genuine interest and learn about as much as possible about the user (meaning, I ask a lot of "Why?") questions
I'm also an optimist - I'm a strong believer in the "yes, and" approach (yes, borrowed from impromptu) and really don't like
Added Bonuses for me
Flexible(ish) working schedule / remote working opportunities - I'm a strong believer in getting what needs to be done, done. Regardless of work hours.


--- layout: post title: "Project Arbitraries with view patterns" description: "Write expressive property-based test with QuickCheck and view patterns." date: 2018-05-14 8:07 UTC tags: [Unit Testing, Haskell] --- {% include JB/setup %}
{{ page.description }}
Recently, I was writing some QuickCheck-based tests of some business logic, and since the business logic in question involved a custom domain type called Reservation
, I had to write an Arbitrary
instance for it. Being a dutiful Haskell programmer, I wrapped it in a newtype
in order to prevent warnings about orphaned instances:
newtype ArbReservation = ArbReservation { getReservation :: Reservation } deriving (Show, Eq) instance Arbitrary ArbReservation where arbitrary = do (d, e, n, Positive q, b) <- arbitrary return $ ArbReservation $ Reservation d e n q b
This is all fine as long as you just need one Reservation
in a test, because in that case, you can simply pattern-match it out of ArbReservation
:
testProperty "tryAccept reservation in the past" $ \ (Positive capacity) (ArbReservation reservation) -> let stub (IsReservationInFuture _ next) = next False stub (ReadReservations _ next) = next [] stub (Create _ next) = next 0 actual = iter stub $ runMaybeT $ tryAccept capacity reservation in isNothing actual
Here, reservation
is a Reservation
value because it was pattern-matched out of ArbReservation reservation
. That's just like capacity
is an Int
, because it was pattern-matched out of Positive capacity
.
Incidentally, in the spirit of the previous article, I'm here using in-lined properties implemented as lambda expressions. The lambda expressions use non-idiomatic formatting in order to make the tests more readable (and to prevent horizontal scrolling), but the gist of the matter is that the entire expression has the type Positive Int -> ArbReservation -> Bool
. This is a Testable
property because all the input types have Arbitrary
instances.
That's fine for that test case, but for the next, I needed not only a single Reservation
value, but also a list of Reservation
values. Again, with QuickCheck, you can't write a property with a type like Positive Int -> [Reservation] -> ArbReservation -> Bool
, because there's no Arbitrary
instance for [Reservation]
. Instead, you'll need a property with the type Positive Int -> [ArbReservation] -> ArbReservation -> Bool
.
One way to do that is to write the property like this:
testProperty "tryAccept reservation when capacity is insufficient" $ \ (Positive i) reservations (ArbReservation reservation) -> let stub (IsReservationInFuture _ next) = next True stub (ReadReservations _ next) = next $ getReservation <$> reservations stub (Create _ next) = next 0 reservedSeats = sum $ reservationQuantity <$> getReservation <$> reservations capacity = reservedSeats + reservationQuantity reservation - i actual = iter stub $ runMaybeT $ tryAccept capacity reservation in isNothing actual
Here, reservations
has type [ArbReservation]
, so every time the test needs to operate on the values, it first has to pull the Reservation
values out of it using getReservation <$> reservations
. That seems unnecessarily verbose and repetitive, so it'd be nice if a better option was available.
Had I been writing F# code, I'd immediately be reaching for an active pattern, but this is Haskell. If there's one thing, though, I've learned about Haskell so far, it's that, if F# can do something, there's a very good chance Haskell can do it too - only, it may be called something else.
With a vague sense that I'd seen something similar in some Haskell code somewhere, I went looking, and about fifteen minutes later I'd found what I was looking for: a little language extension called view patterns. Just add the language extension to the top of the file where you want to use it:
{-# LANGUAGE ViewPatterns #-}
You can now change the property to pattern-match reservations
out of a function call, so to speak:
testProperty "tryAccept reservation when capacity is insufficient" $ \ (Positive i) (fmap getReservation -> reservations) (ArbReservation reservation) -> let stub (IsReservationInFuture _ next) = next True stub (ReadReservations _ next) = next reservations stub (Create _ next) = next 0 reservedSeats = sum $ reservationQuantity <$> reservations capacity = reservedSeats + reservationQuantity reservation - i actual = iter stub $ runMaybeT $ tryAccept capacity reservation in isNothing actual
The function getReservation
has the type ArbReservation -> Reservation
, so fmap getReservation
is a partially applied function with the type [ArbReservation] -> [Reservation]
. In order to be able to call the overall lambda expression, the caller must supply an [ArbReservation]
value to the view pattern, which means that the type of that argument must be [ArbReservation]
. The view pattern then immediately unpacks the result of the function and gives you reservations
, which is the return value of calling fmap getReservation
with the input value(s). Thus, reservations
has the type [Reservation]
.
The type of the entire property is now Positive Int -> [ArbReservation] -> ArbReservation -> Bool
.
This removes some noise from the body of the property, so I find that this is a useful trick in this particular situation.
You can use the view patterns GHC language extension when you need to write a function that takes an argument of a particular type, but you never care about the original input, but instead immediately wish to project it to a different value.
I haven't had much use for it before, but it seems to be useful in the context of QuickCheck properties.
Comments
I've seen folks wrap up the view pattern in a pattern synonym:
(
coerce
is usually more efficient thanfmap
.)OTOH I don't think orphan instances of
Arbitrary
are very harmful. It's unlikely that they'll get accidentally imported or overlap, becauseArbitrary
is purely used for testing. So in this specific case I'd probably just stick with an orphan instance and turn off the warning for that file.Benjamin, thank you for the pattern synonyms tip; I'll have to try that next time.
Regarding orphaned instances, your point is something I've been considering myself, but I'm still at the point of my Haskell journey where I'm trying to understand the subtleties of the ecosystem, so I wasn't sure whether or not it'd be a good idea to allow orphaned
Arbitrary
instances.When you suggest turning off the warning for a file, do you mean adding an
{-# OPTIONS_GHC -fno-warn-orphans #-}
pragma, or did you have some other method in mind?Yep I meant
OPTIONS_GHC
.Orphan instances are problematic because of the possibility that they'll be imported unintentionally or overlap with another orphan instance. If you import two modules which both define orphan instances for the same type then there's no way for GHC to know which one you meant when you attempt to use them. Since instances aren't named you can't even specify it manually, and the compiler can't check for this scenario ahead of time because of separate compilation. (Non-orphans are guaranteed unique by the fact that you can't import the parent type/class without importing the instance.)
In the case of
Arbitrary
these problems typically don't apply because the class is intended to be used for testing.Arbitrary
instances are usually internal to your test project and not exported, so the potential for damage is small.Benjamin, thank you for elaborating. That all makes sense to me.


Strictly Come Dancing stars share an epic selfie as they head to Blackpool together
They're off to the home of ballroom
by Nancy BrownThe cast of Strictly Come Dancing are off to Blackpool this weekend and the stars of the show shared an epic selfie as they headed north.
Michelle Visage – who recently hit out at claims she was "deeply unhappy after clashing with partner Giovanni Pernice – shared the selfie.
"Friends headed to BLACKPOOL! Yaaaaassss," she said, also posting the roller coaster dancing lady emoji.
The image showed Michelle and Giovanni travelling up to Blackpool by train.
Also in the picture were Karen Hauer and her partner Chris Ramsey and Neil Jones and Alex Scott.
Read more: The Met Office issues severe weather warnings as snow hits parts of the UK
Chris and Neil also shared the picture.
Neil captioned it: "On route to Blackpool with this crazy bunch."
The selfie comes after this week's songs and dances were revealed.
Alex and Neil will dance the paso doble to Beyoncé's Run The World (Girls).
Read more: Line Of Duty actors meet this year's "secret guest stars" ahead of series six filming
Chris and Karen will dance the salsa to Mark Ronson and Bruno Mars' Uptown Funk.
Michelle and Giovanni will dance the couples' choice to Vogue by Madonna.
Elsewhere, Karim Zeroual and Amy Dowden dance the Charleston to C2C's Happy, Kelvin Fletcher and Oti Mabuse take on the jive to Jailhouse Rock, while Saffron Barker dances the quickstep to Beverley Knight's Marvellous Party with AJ Pritchard.
EastEnders star Emma Barton dances the American smooth to Ella Fitzgerald's Let's Face The Music And Dance.
She'll be hoping to get better comments from head judge Shirley Ballas, who fans claimed praised her "through gritted teeth" after her dance last week.
Head to our Facebook page @EntertainmentDailyFix and let us know what you think of our story.


About MOMO
MOMO is an innovative cryptocurrency. A form of digital currency secured by cryptography and issued through a decentralized and advanced mining market. Based on Dash, it's an enhanced version, featuring the masternode technology with 50% Reward, near-instant and secure payments as well as anonymous transactions.
What is MomoCash?Momo is an experimental new digital currency that enables anonymous, instant payments to anyone, anywhere in the world. Momo uses peer-to-peer technology to operate with no central authority: managing transactions and issuing money are carried out collectively by the network. MomoCash Core is the name of the open source software which enables the use of this currency.
The emergence of blockchain-based decentralized digital currencies woke up hopes for the beginning of a better world. A world, where wealth is distributed fairly without control and influence of a powerful middleman. Although blockchain technology equipped us with a perfect tool to make this dream come true, it will not happen by itself. The concept of a socially responsible cryptocurrency inspired us to create Ultima - a platform designed to support endeavors of its community in various areas. The Ultima Multi-Module Platform (MMP) includes functionalities ranging from a digital marketplace to crowdfunding and charity components. By working together on noble causes we will regain the faith in cryptocurrencies.
MOMO's Features
-
Super Fast
Decentralized and anonymous cryptocurrency for small business
-
Privacy
A feature of Masternodes is to enable PrivateSend that allows your transactions and balances to stay anonymous. Superior anonymous transactions with secure and near-instant payments
-
Online Wallet
Keep your money, exchange your money, invest your money, pay services and make purchases
-
Exchange Money
Exchange between all popular currencies with a couple of clicks.Instant send from one currency to another
-
Masternodes
Providing High ROI for the Holder while enabling PrivateSend and InstaSend. CoreZ (CRZ) features the Masternode technology with block rewards starting from 50% and gradually increasing to 62.5%
-
Long Term Goals
The main features we plan to work on in the future are the following: - Health Insurance. - Travel Tourisms. - Payment/Invesment. - Entrepreneurship
MOMO's Roadmap
- Launch Website
- Windows, Mac and Linux Wallet Release
- DEVELOP main BlockChain
- DEVELOP momo pool
- DEVELOP momo explode
- DEVELOP momo wallet api
- Major Update Wallets
- Desktop wallets update (added features)
- Exchange Development (Start)
- Mobile wallets (Android & iOS)
- Hiring PR team
- Attract Merchants
- Listings/Exchanges trading on 4 exchanges
- Listing to masternodes ranking sites
- Listing to new exchanges (community involved for choices)
- Maternode the super masternode update
- New dynamic website
- Major Update Wallets
- Desktop wallets update (added features)
- Mobile wallets (Android & iOS)
- Main BlockChain function update
- Develop new fast function
- Start digital marketing plan
- Fundraising for growth
- Design Marketplace
- Launch payment gateways
- Search for new integration cases for Momo
- Release of momofunding platform
SALUTE TO
This project is sponsored by Momo Foundation && Momo Community,Including former senior architects and engineers from google PayPal and Alipay
Join Our Community
Contact width us through our media channels
Wallets
Private payments online using our secure open-source platform hosted by users around the world.
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THIRTEEN DAYS RATING: 7.5/10 --> Very good movie
For more reviews and movie screensavers, visit http://www.joblo.com/
Am I the only one who's had it up to here (that's right...here!) with films that start by either thirteen or six? Let's look at the past few years. There was THE THIRTEENTH FLOOR, THE THIRTEENTH WARRIOR and now, THIRTEEN DAYS. There's also been THE SIXTH DAY, THE SIXTH SENSE and SIX DAYS, SEVEN NIGHTS. C'mon Hollywood...get original, dude! How about tossing some new numbers in there? The SECOND DAY might've been just as good/bad, or what about the EIGHTEENTH WARRIOR? I don't know, maybe I'm just a little cranky cause it's that time of the month again and my memory sucks, but let's see what Kevin Costner has to say about all this...
PLOT: Based on a real life event. The Soviet Union is stockpiling nuclear missiles in Cuba. The United States spots the warheads and considers them to be a little too close for comfort. The President and the rest of the big wigs in the government spend the next thirteen days grazing the possibility of an all-out war breaking out against the USSR. Who's gonna blink first? Are the Soviets bluffing? Will Marilyn Monroe save the day?
CRITIQUE: Historians, patient moviegoers and those fascinated with the behind-the-scenes goings-on of all things political are likely to embrace this movie. I dug it myself. Certain elements from it reminded me a lot of two other great films, namely NO WAY OUT and CRIMSON TIDE, although this film focused more on the talkie-talkie stuff, rather than any action, romance or humor. Of course, this film isn't about that anyway. It's about tense moments, tit-for-tat strategy sessions and basically, one of the greatest political chess games of all time. I thoroughly enjoyed this film, never once felt bored during its two and a half hour runtime and was gripped by its many strong performances. Ironically, the first utterance of Kevin Costner's thick, thick Boston accent had me wondering if I had walked into a comedy or what, but it only took five minutes for me to believe both him, his accent and pretty much everything else that occurred in this movie from there on out.
You see, the Cuban Missile Crisis took place long before my time and I honestly didn't know all that much about it before seeing this movie (me no Americanos), so every second on the clock was a captivating one for me. The jargon wasn't too hard to follow, especially with the Kennedy brothers sharply tag-teaming their way through most of the hard-liners, and all of the main characters, very well drawn out. And what about those awesome suits that the brothers and Costner were wearing? Very cool! All in all, this movie is structured a lot like a play. Plenty of dialogue, lots of characters interacting amongst one another and very few distinct locations. One thing I didn't "get" or like about this film, was the director's seemingly arbitrary use of black and white vs color scenes. He pulled a couple of these babies early on and then stopped. Not exactly sure why. It was just distracting. But on the whole, the movie grabbed by the cojones and let me fly up on the wall during a pretty funky time of our history. Granted, it didn't have me chomping fingernails the whole way through, but the tension was present throughout, the dead-on performances by Bruce Greenwood and Steven Culp infectious to behold, and ultimately, the movie helped me achieve a greater understanding of the entire event as it took place, and allowed me to put my little miscommunication issues with the Missus in perspective.
You see, when the Mrs. and I miscommunicate, I don't get any nookie for the night. But when JFK and Kruschev miscommunicate in this movie (couldn't these guys just call each other direct?), the result could likely have turned into World War 3. Makes the whole toilet seat up-or-down debate seem pretty insignificant, eh?
Little Known Facts about this film and its stars: Note about this film (from the press kit): While this picture is based upon a true story, some characters have been composited or invented, and dialogue and a number of incidents contained in this film were fictionalized for the purpose of dramatization. PackBacker, this one's for you! This is screenwriter David Self's second produced screenplay. His first was for 1999's THE HAUNTING. Yikes! Director Roger Donaldson previously worked with Kevin Costner in the 1987 thriller NO WAY OUT.
Review Date: January 4, 2001 Director: Roger Donaldson Writer: David Self Producers: Kevin Costner, Armyan Bernstein, Peter O. Almond Actors: Kevin Costner as Kenny O'Donnell Bruce Greenwood as John F. Kennedy Steven Culp as Robert F. Kennedy Genre: Drama Year of Release: 2001 ------------------------------------- JoBlo's Movie Emporium http://www.joblo.com/ ------------------------------------- (c) 2001 Berge Garabedian
The review above was posted to the
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Main Window
The GeoFDA main window displays the GeoFDA user interface. The user interface allows the user to create a new study, open an existing study, and analyze and edit several elements within the study. The main window is comprised of the Menu Bar, three Tool Bars, the Map Window, the Study Tree tab, and the Map Layers tab.
Menu Bar
The Menu Bar consists of File, Mapping, Study, Log, and Help menus.
- File: Create New Study, Open Existing Study, Close Existing Study, Save, Save As, Exit
- Mapping: Add Map Layer, Add Web Layer, Map Properties
- Study: Porperties, Analysis Years, Terrain, Hydraulics, Inventory, Impact Areas, FDA Import File
- Log: View Log File
- Help: Help, Quickstart Guide, About
Map Window
The Map Window provides a way to graphically display your project elements. All of the selected map layers will be displayed. You can also quickly add map layers by draging and dropping files from your computer into the window.
Maps Toolbar
The Maps Toolbar provides tools to select items on the map, scroll, resize, add map layers, view information about map objects, and measure between user selected points.
Selectable Layers Toolbar
The Selectable Layers Toolbar allows you to choose which layers in the map window that you want to select from with the selection tool.
Editor Toolbar
The Editor Toolbar provides several features that are used to manipulate points, lines, and polygons.
Study Tree
The Study Tree tab provides a view of the project in a tree format. You can collapse and expand several of the items in the study by clicking the black triangle to the left of the item. You use the Study Tree to add, remove, or edit data in your project. Right click on an item in the tree to see what options are available.
Map Layers
The Map Layers tab lists all of the map layers that have been added to your project. You can select or unselect map layers by clicking the check box next to each item. The corresponding map layer will appear or disappear in the Map Window. By right clicking the name of a map layer several options appear.


It is our passion to find the most effective way to catch squid. We have been experimenting and finding the best way to make jigs!
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Founder/CEO
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Product Marketer/Designer
Send us a message and we'll get back to you within 1-2 business days.


{{define "PageTitle"}}{{.SysName}} - System Setup{{end}} {{define "Headline"}}Admin Panel{{end}} {{define "Subtext"}}System configuration{{end}} {{define "body"}}
The first time you start {{.SysName}} you will need to supply a few details about your host environment, the administrator, and the git repository hosting environment. Currently, only GitHub is supported.
Before you can start you will need to register the {{.SysName}} application at GitHub; you will need to do this from the administrator account.
Note that, the Homepage URL must be a fully qualified URL, including http://. This must be the hostname (or an alias) of server running the '{{.SysNameLC}}' program. This server must have a public IP address, since GitHub will make calls to this server to support {{.SysName}}'s functionality. Further, {{.SysName}} requires that the Authorization callback URL is the same as the Homepage URL with the added "/oauth" path.
Once you have completed the above steps, the Client ID and Client Secret will be available from the GitHub web interface. Simply copy each of these OAuth tokens and paste them into the configuration file, or on the command line when starting {{.SysName}} for the first time. You will not need to repeat this process when starting {{.SysName}} in the future.
If you need to obtain the OAuth tokens at a later time, e.g. if you have deleted the configuration file, go to: https://github.com/settings/developers and select your Application to be able to view the OAuth tokens again.


| Home | Trees | Indices | Help |
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Created on Jun 19, 2012
Organization: Institut Mines-Telecom - Telecom SudParis
Version: 0.3
License: LGPL - Lesser General Public License
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| Generated by Epydoc 3.0.1 on Mon Jul 23 11:54:51 2012 | http://epydoc.sourceforge.net |


Hyper X ON-EAR Wireless over-ear headphones Driver unit 70 mm, dome type (CCAW Voice Col) Frequency Response 4 Hz + 100.000 Hz


--- layout: post status: publish published: true title: Alcantara Gets the Call author: display_name: Andy login: Andy email<EMAIL_ADDRESS>url: '' author_login: Andy author_email<EMAIL_ADDRESS>wordpress_id: 10224 wordpress_url: http://ivyenvy.com/?p=10224 date: '2014-07-09 10:51:32 +0000' date_gmt: '2014-07-09 15:51:32 +0000' categories: - Minor Leagues - Prospects tags: - Darwin Barney - Arismendy Alcantara comments: - id: 11897 author: IvyEnvy - Corey author_email<EMAIL_ADDRESS>author_url: http://ivyenvy.com/ date: '2014-07-09 13:23:24 +0000' date_gmt: '2014-07-09 18:23:24 +0000' content: |- Al-can-tara Al-kahn-tara Al-con-tra Al-can-tra Air-is-mendy Ahr-is-mendy Air-es-mendy Ahr-es-mendy What is it? - id: 11907 author: IvyEnvy - Corey author_email<EMAIL_ADDRESS>author_url: http://ivyenvy.com/ date: '2014-07-10 08:07:26 +0000' date_gmt: '2014-07-10 13:07:26 +0000' content: Ok. Last night, Len Kasper said "Al-Kah-tuh-ruh" ---
Cubs prospect Arismendy Alcantara has been called up for the last two games of the Reds series. Alcantara will be covering for Darwin Barney while Barney is on paternity leave (there are already plenty of muscle flexes from people wanting Barney to take an extended leave). As far as Cubs prospects go, Alcantara flies under the radar a little as he is ranked seventh among Cubs prospects by MLB.com. However, the guy can definitely play ball.
He first grabbed my attention when I saw him hit a homer in the 2013 Futures Game. With the Iowa Cubs this season, Alcantara is hitting .307 in 335 at-bats (most on the roster). Despite his somewhat small stature (5'10/170) and a slightly below-average power score on his scouting report, Alcantara has hit 10 home runs this season. He also leads the I-Cubs in doubles (25), triples (11), and stolen bases (21). Though Alcantara was originally a shortstop, he has played mostly 2nd base in the minors, and recently, he has been playing center field. The front office has made it known that this call-up will only be until Thursday, but it will be great to get a little preview of what Arismendy Alcantara can do.
Also, finally there is some dicussion about the pronunciation of his name:
Let's decide: Are we saying "Al-can-tra" or "Al-can-tara?" #Cubs call up prospect Arismendy Alcantara for MLB debut http://t.co/kLmRqGYwsl
— Julie DiCaro (@JulieDiCaro) July 9, 2014
English teachers should also consider using his name as an example of assonance.
'


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--- layout: page title: About published: true --- Matthew Metzgar, Ph.D. Clinical Professor of Economics Email: mmetzgar@outlook.com


{% extends "base_generic.html" %} {% block content %}
Please check your input and try again.
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What is ISBN number?


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I am a software developer currently working with JavaScript and Serverless at Antstack. I like learning and experimenting with new technologies as they come. I try to build things that will save me from manual work.  I occasionally write on my blog about new technologies, coding, how-tos, travel etc.
JavaScript (React, NodeJS), Python, Serverless, AWS.
I am a cinephile with love towards Sci-Fi, Mystery and Heist movies. I sometimes pointlessly binge-watch magic shows on YouTube. I also love animals (), traveling and photography (Yes, the background image you see above is a self-timed shot of me).
Want to talk? drop me a mail<EMAIL_ADDRESS>Resume
YouTube Search App that keeps fetching search results until you get tired scrolling.
Github
Terminal based chat application built using Go which enables communication between
computers within the local network.
Github
A web portal connecting all the departments of the college in which staff enter the details of the workshop and conferences that they have conducted or attended for efficient bookkeeping.
A web application that fetches top tweets from twitter based on the search query
(hashtag/username) and categorizes them into positive, negative and neutral tweets.
Github
React App that takes resume written in Markdown and generates the styled print-ready resume
page. Includes minimal
theming, icons and custom page breaks for printed copy. Can easily be deployed as github
page or to Netlify.
Github


Every effort is made to make all the codes to run smoothly. However, Xcos Cloud takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues and code not producing accurate outputs due to any toolboxes.
Xcos on Cloud facilitates execution of the codes for particular example(s) online. The results can then be verified with the solved example(s) from the textbook. It is also possible to change the values of the variables and in fact, the code itself, and execute it. In addition to the given examples, one can also copy and paste (or) write a new code in the input box provided and execute the same. Read more..
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| License | This work is licensed under the Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
The FOSSEE team has created a submission portal that allows the code for each example to be uploaded individually. The Textbook Companion Project aims to port solved examples from standard textbooks using an open source software system, such as Scilab. Read more..
If you wish to contribute to our activities such as Lab Migration, Textbook Companion, Xcos, Xcos on Cloud, Scilab on Cloud, Scilab on Aakash, please write to contact[at]scilab[dot]in. For feedback on Lab Migration (or) Textbook Companion, click here.


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[su_box title="Make-Up" box_color="#676767" class="spa-services-box medi-treatments"]
Get the latest look for your special occasion, schedule a private how-to session, or have some fun with our off-site makeup parties.
[su_button url="http://www.changessalon.com/makeup-services.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]Makeup[/su_button]
[/su_box]
[/su_column]
[su_column size="1/3"]
[su_box title="Hair Removal" box_color="#676767" class="spa-services-box nails"]
Waxing is a longer-lasting alternative to shaving for those looking for a hair removal option. The process involves the use of strip was and hard wax to pull and remove hair from the root. Whether you choose Brazilian waxing, body waxing or expert brow design, you can expect beautiful results.
[su_button url="http://www.changessalon.com/hair-removal.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]Waxing[/su_button]
[/su_box]
[/su_column]
[su_column size="1/3"]
[su_box title="Especially For Men" box_color="#676767" class="spa-services-box hair-removal"]
We make sure our male customers receive the same top-notch services our female clients do.
[su_button url="http://www.changessalon.com/mens-salon-and-spa-services.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]Men's Services[/su_button]
[/su_box]
[/su_column]
[/su_row]
[su_row]
[su_column size="1/3"]
[su_box title="Packages" box_color="#676767" class="spa-services-box packages"]
The most unforgettable gifts are those you would love to receive yourself. Changes offers a selection of packages designed to refresh and renew the Body and Spirit. Let us help customize a gift package for you.
[su_button url="http://www.changessalon.com/packages.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]Packages[/su_button]
[/su_box]
[/su_column]
[su_column size="1/3"]
[su_box title="VIP Program" box_color="#676767" class="spa-services-box memberships"]
Are you a VIP? Changes thinks you are! Pampering your mind, body & spirit at Changes is rewarding in and of itself, but now you can earn BIG SAVINGS on any of our world-class services and products by enrolling in our Changes VIP Program.
[su_button url="http://www.changessalon.com/vip-points.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]VIP Program[/su_button]
[/su_box]
[/su_column]
[su_column size="1/3"]
[su_box title="Group Events" box_color="#676767" class="spa-services-box group-events"]
Changes Spa is the perfect unique venue for special get-togethers such as bachelorette parties, bridal showers, baby showers, women’s groups, teen groups and corporate events. We can customize services and products to fit your budget.
[su_button url="http://www.changessalon.com/group-events.html" background="#818181" color="#fff" center="yes" icon="icon: link" icon_color="#fff" class="space-top-20"]Group Events[/su_button]
[/su_box]
[/su_column]
[/su_row]


|
Bullet Collision Detection & Physics Library
|
#include <btOverlappingPairCache.h>
Public Member Functions | |
| virtual | ~btOverlapCallback () |
| virtual bool | processOverlap (btBroadphasePair &pair)=0 |
Definition at line 28 of file btOverlappingPairCache.h.
|
inlinevirtual |
Definition at line 30 of file btOverlappingPairCache.h.
|
pure virtual |
Implemented in btCollisionPairCallback, CheckOverlapCallback, and RemovingOverlapCallback.


Fiona Whittington
A designer, technologist, and entrepreneur with
a passion for startups and social impact.
About
Resume
Portfolio
Writing Samples
Web Development
Graphic Design
The Bit's logo was designed by
Remy Usman
. The Bit website was designed by our Senior Product Designer,
Grace Colbert
, under my creative direction. The Bit illustrations and posters were designed by Allyson Sheehan.


Monthly ( September )
| # | Runner | Points |
|---|---|---|
| 1st | ScieCode | 36 |
| 2nd | TheHSbF6Leo | 27 |
| 3rd | Manurluberlu911 | 18 |
| 3rd | Bigunit | 18 |
| 5th | Th3on3 C | 17 |
| 6th | AnInternetTroll | 7 |
| 7th | Slons | 1 |
All time
| # | Runner | Points |
|---|---|---|
| 1st | ScieCode | 195 |
| 2nd | Th3on3 C | 164 |
| 3rd | Bigunit | 60 |
| 4th | TheHSbF6Leo | 59 |
| 5rd | AnInternetTroll | 47 |
| 6th | Maxaraxa | 28 |
| 7th | Saturn | 20 |
| 8th | Manurluberlu911 | 18 |
| 9th | SioNisti | 16 |
| 9th | Schroume | 16 |
| 11th | jocloud31 | 12 |
| 12th | Paum | 10 |
| 13th | ThatOneGuy_nnn | 3 |
| 14th | Slons | 1 |


To capture the last culprit, the team who completed the capture will have to present the necessary evidence (clues) for them to be awarded the winner. The teams will not be allowed to displace the evidence from the site where they found it. The teams
will not be allowed to physically obstruct any other team from accessing any evidence The teams can be a maximum of five members and a minimum of three


“Ordnance Survey Map 104 : Leeds and Bradford… It's a riot of names that could be nowhere else but Yorkshire: villages such as Luddendon Foot, Mytholmroyd, Farsley Beck Bottom, Wibsey, Odsal, Idle, Owlet, Harden, Greetland, Rastrick, Ossett, Soothill, Scarcroft, Wike, Kirkby Overblow, Spofforth, Scriven, Blubberhouses, Stainburn, Birstwith, Thwaites Brow, Cringles, Glusburn and Goose Eye—a list that sounds more like entries in a dictionary of Dickensian ailments.”
Mike Parker, Map Addict (2009)


Jacob S. Bass
Contact
Email
Phone
Pages
Apps
About
Resume
JavaScript Solar System
Representation of the Solar System
Time is scaled down (see Time Dilation)
Days are in terms of Earth
Made using JavaScript
Visibility
Sun
Mercury
Venus
Earth
Mars
Asteroid Belt
Jupiter
Saturn
Uranus
Neptune
Pluto
Revolutions
Time (Earth days):
Time Dilation:
1 day/sec
Pause
Rewind
Reset


BackboneThis will generate components for Backbonejs as well as scaffold views that may be helpful. This project was motivated by the Thomas Davis's video from Backbone Tutorials. The source for backboneThis can be found on Github under MIT License.


回復モードとダウンロードモードでgalaxy S10を起動する方法 Android Gadget Hacks
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#include "_doctype.html"
command line tool and library
.. but for a page not found
This resource is gone!
Whatever you hoped you were going to get when you asked for this particular URL, it isn't here. We may have removed some old cruft and hope that you will find your way to the new content instead, you may have pasted a bad URL or we may have screwed up somewhere when we edited content on the site. We just can't tell.
A humble suggestion is that you start over on the main page and go from there.
Alternatively, enter some interesting search terms below and see if you can find a more suitable destination on the curl site:
#include "sitesearch.t" #include "_footer.html"


Loading...
Error: JS is required
Click here to set another date.
Each event is separated by a newline. Certain events like "The New Year" or the seasons are hard-coded.
Format:
spec, desc
, e.g.
4 1, April Fools' Day
.
desc
is optional. Specs:
YYYY
or
D
M D
or
m M
or
h H
hm H M
or
YYYY M D
YYYY M D H or YYYY M D H M
Cancel
Help


Paul Heckingbottom reveals Bobby Madden chat as Hibs boss slams offside decision
The Hibs gaffer reckons his side aren't getting any luck as they were heavily beaten by Celtic at Hampden.
by Graeme Young, https://www.dailyrecord.co.uk/authors/graeme-young/Hibs boss Paul Heckingbottom insists his side aren't getting any luck as he bemoaned the lack of an offside flag for Celtic's second goal.
Odsonne Edouard was offside but assistant Douglas Ross failed to raise his flag and Callum McGregor scored after being set up by the Frenchman.
That frustrated the Hibs boss as it put Celtic two in front after just 20 minutes and he revealed he spoke to Bobby Madden at half time to ask for a break.
Ross also wrongly disallowed a goal when Hibs played Elgin in the group stage of the competition and Heckingbottom isn't impressed.
He said: "The same linesman as Elgin as well.
"We're used to it now. I said to Bobby (Madden) coming out at half time, 'come on give us a break'
"You know I don't sit here and moan about that but that is fact, we are getting them all the time.
"The second one today, three chalked off, two red cards we are getting them all the time.
"As much as we focus on ourselves to do our bit there should be more scrutiny, more accountability and I don't think there is.
"It always costs us. It could have been 1-1, so it has definitely contributed, it would be nice if they could get them right all the time.
"The offside one is a black and white one."
Pressure is building on Heckingbottom supporters aiming abuse at the Easter Road gaffer as their side were beaten.
But the former Barnsley manager insists he can turn things around.
He said: "Yes. 100 per cent.
"It's out of my control, I certainly won't be involved in the decision on my own future.
"All we keep doing is keep working and keep pushing. We have to deal with out there's no point sulking about it."


Estrogen and progesterone receptors in vernal keratoconjunctivitis.
Abstract
PURPOSE: Sex-related influences have been implicated in the pathogenesis of vernal keratoconjunctivitis (VKC), an allergic eosinophilic disease. METHODS: The authors evaluated tarsal and bulbar conjunctival biopsies from seven patients with severe and symptomatic VKC for the presence of estrogen and progesterone receptors by using monoclonal antibodies with a peroxidase-antiperoxidase technique. RESULTS: Both the epithelium and subepithelium of the tarsal and bulbar conjunctiva of patients with VKC, but not those of four nonatopic control subjects, showed intense positive staining for estrogen and progesterone receptors. Immunofluorescence colocalization of both estrogen and progesterone receptors with eosinophil cationic protein showed that approximately 70 % of positive cells were eosinophils. CONCLUSIONS: Sexual hormones, through their receptors, may influence the activity of eosinophils in patients with VKC.


{% extends "amr/base.html" %} {% block title %}Humangen | Home{% endblock %} {% block content %}
The aim of this project is to generate English sentences from AMRs in order to assess a human's ability to convert between the two.


Brand
Office
Desk
Dep
Agent name
Ext
Online
Duration on line call
Last Call Duration
TotalCalls
efficiency%
FXORO
Israel
EN
Sales
Test
1121
Offline
test


We extend networks!
- maximize killer users
- deploy user-centric ROI
- synthesize web-enabled e-tailers
- matrix viral interfaces
- transition back-end initiatives
- extend sexy portals
- synergize dynamic communities
- e-enable B2C convergence
- aggregate holistic e-business
- reintermediate cutting-edge platforms
- deliver clicks-and-mortar architectures
- seize distributed communities
- empower ubiquitous relationships
- optimize holistic convergence


Rebol
Real code (borrowed from gchui/rebolbot/prot-http.r) - Desert CSS
REBOL [
System: "REBOL [R3] Language Interpreter and Run-time Environment"
Title: "REBOL 3 HTTP protocol scheme"
Rights: {
Copyright 2012 REBOL Technologies
REBOL is a trademark of REBOL Technologies
}
License: {
Licensed under the Apache License, Version 2.0
See: http://www.apache.org/licenses/LICENSE-2.0
}
Name: 'http
Type: 'module
Version: 0.1.0
File: %prot-http.r
Purpose: {
This program defines the HTTP protocol scheme for REBOL 3.
}
Author: "Gabriele Santilli"
Date: 22-Jun-2007
]
sync-op: func [port body /local state] [
unless port/state [open port port/state/close?: yes]
state: port/state
state/awake: :read-sync-awake
do body
if state/state = 'ready [do-request port]
unless port? wait [state/connection port/spec/timeout] [http-error "Timeout"]
body: copy port
if all [
select state/info/headers 'Content-Type
state/info/headers/Content-Type
parse state/info/headers/Content-Type [
"text/" thru "; charset=UTF-8"
]
] [
body: to string! body
]
if state/close? [close port]
body
]
read-sync-awake: func [event [event!] /local error] [
switch/default event/type [
connect ready [
do-request event/port
false
]
done [
true
]
close [
true
]
error [
error: event/port/state/error
event/port/state/error: none
do error
]
] [
false
]
]
http-awake: func [event /local port http-port state awake res] [
port: event/port
http-port: port/locals
state: http-port/state
if any-function? :http-port/awake [state/awake: :http-port/awake]
awake: :state/awake
switch/default event/type [
read [
awake make event! [type: 'read port: http-port]
check-response http-port
]
wrote [
awake make event! [type: 'wrote port: http-port]
state/state: 'reading-headers
read port
false
]
lookup [open port false]
connect [
state/state: 'ready
awake make event! [type: 'connect port: http-port]
]
close [
res: switch state/state [
ready [
awake make event! [type: 'close port: http-port]
]
doing-request reading-headers [
state/error: make-http-error "Server closed connection"
awake make event! [type: 'error port: http-port]
]
reading-data [
either any [integer? state/info/headers/content-length state/info/headers/transfer-encoding = "chunked"] [
state/error: make-http-error "Server closed connection"
awake make event! [type: 'error port: http-port]
] [
any [
awake make event! [type: 'done port: http-port]
awake make event! [type: 'close port: http-port]
]
]
]
]
close http-port
res
]
] [true]
]
make-http-error: func [
"Make an error for the HTTP protocol"
message [string! block!]
] [
if block? message [message: ajoin message]
make error! [
type: 'Access
id: 'Protocol
arg1: message
]
]
http-error: func [
"Throw an error for the HTTP protocol"
message [string! block!]
] [
do make-http-error message
]
make-http-request: func [
"Create an HTTP request (returns string!)"
method [word! string!] "E.g. GET, HEAD, POST etc."
target [file! string!] {In case of string!, no escaping is performed (eg. useful to override escaping etc.). Careful!}
headers [block!] "Request headers (set-word! string! pairs)"
content [any-string! binary! none!] {Request contents (Content-Length is created automatically). Empty string not exactly like none.}
/local result
] [
result: rejoin [
uppercase form method #" "
either file? target [next mold target] [target]
" HTTP/1.0" CRLF
]
foreach [word string] headers [
repend result [mold word #" " string CRLF]
]
if content [
content: to binary! content
repend result ["Content-Length: " length? content CRLF]
]
append result CRLF
result: to binary! result
if content [append result content]
result
]
do-request: func [
"Perform an HTTP request"
port [port!]
/local spec info
] [
spec: port/spec
info: port/state/info
spec/headers: body-of make make object! [
Accept: "*/*"
Accept-Charset: "utf-8"
Host: either spec/port-id <> 80 [
rejoin [form spec/host #":" spec/port-id]
] [
form spec/host
]
User-Agent: "REBOL"
] spec/headers
port/state/state: 'doing-request
info/headers: info/response-line: info/response-parsed: port/data:
info/size: info/date: info/name: none
write port/state/connection
make-http-request spec/method to file! any [spec/path %/]
spec/headers spec/content
]
parse-write-dialect: func [port block /local spec] [
spec: port/spec
parse block [[set block word! (spec/method: block) | (spec/method: 'post)]
opt [set block [file! | url!] (spec/path: block)] [set block block! (spec/headers: block) | (spec/headers: [])] [set block [any-string! | binary!] (spec/content: block) | (spec/content: none)]
]
]
check-response: func [port /local conn res headers d1 d2 line info state awake spec] [
state: port/state
conn: state/connection
info: state/info
headers: info/headers
line: info/response-line
awake: :state/awake
spec: port/spec
if all [
not headers
d1: find conn/data crlfbin
d2: find/tail d1 crlf2bin
] [
info/response-line: line: to string! copy/part conn/data d1
info/headers: headers: construct/with d1 http-response-headers
info/name: to file! any [spec/path %/]
if headers/content-length [info/size: headers/content-length: to integer! headers/content-length]
if headers/last-modified [info/date: attempt [to date! headers/last-modified]]
remove/part conn/data d2
state/state: 'reading-data
]
unless headers [
read conn
return false
]
res: false
unless info/response-parsed [
;?? line
parse/all line [
"HTTP/1." [#"0" | #"1"] some #" " [
#"1" (info/response-parsed: 'info)
|
#"2" [["04" | "05"] (info/response-parsed: 'no-content)
| (info/response-parsed: 'ok)
]
|
#"3" [
"03" (info/response-parsed: 'see-other)
|
"04" (info/response-parsed: 'not-modified)
|
"05" (info/response-parsed: 'use-proxy)
| (info/response-parsed: 'redirect)
]
|
#"4" [
"01" (info/response-parsed: 'unauthorized)
|
"07" (info/response-parsed: 'proxy-auth)
| (info/response-parsed: 'client-error)
]
|
#"5" (info/response-parsed: 'server-error)
]
| (info/response-parsed: 'version-not-supported)
]
]
switch/all info/response-parsed [
ok [
either spec/method = 'head [
state/state: 'ready
res: awake make event! [type: 'done port: port]
unless res [res: awake make event! [type: 'ready port: port]]
] [
res: check-data port
if all [not res state/state = 'ready] [
res: awake make event! [type: 'done port: port]
unless res [res: awake make event! [type: 'ready port: port]]
]
]
]
redirect see-other [
either spec/method = 'head [
state/state: 'ready
res: awake make event! [type: 'custom port: port code: 0]
] [
res: check-data port
]
if all [not res state/state = 'ready] [
either all [
any [
find [get head] spec/method
all [
info/response-parsed = 'see-other
spec/method: 'get
]
]
in headers 'Location
] [
res: do-redirect port headers/location
] [
state/error: make-http-error "Redirect requires manual intervention"
res: awake make event! [type: 'error port: port]
]
]
]
unauthorized client-error server-error proxy-auth [
either spec/method = 'head [
state/state: 'ready
] [
check-data port
]
]
unauthorized [
state/error: make-http-error "Authentication not supported yet"
res: awake make event! [type: 'error port: port]
]
client-error server-error [
state/error: make-http-error ["Server error: " line]
res: awake make event! [type: 'error port: port]
]
not-modified [state/state: 'ready
res: awake make event! [type: 'done port: port]
unless res [res: awake make event! [type: 'ready port: port]]
]
use-proxy [
state/state: 'ready
state/error: make-http-error "Proxies not supported yet"
res: awake make event! [type: 'error port: port]
]
proxy-auth [
state/error: make-http-error "Authentication and proxies not supported yet"
res: awake make event! [type: 'error port: port]
]
no-content [
state/state: 'ready
res: awake make event! [type: 'done port: port]
unless res [res: awake make event! [type: 'ready port: port]]
]
info [
info/headers: info/response-line: info/response-parsed: port/data: none
state/state: 'reading-headers
read conn
]
version-not-supported [
state/error: make-http-error "HTTP response version not supported"
res: awake make event! [type: 'error port: port]
close port
]
]
res
]
crlfbin: #{0D0A}
crlf2bin: #{0D0A0D0A}
crlf2: to string! crlf2bin
http-response-headers: context [
Content-Length:
Transfer-Encoding:
Last-Modified: none
]
do-redirect: func [port [port!] new-uri [url! string! file!] /local spec state] [
spec: port/spec
state: port/state
if #"/" = first new-uri [
new-uri: to url! ajoin [spec/scheme "://" spec/host new-uri]
]
new-uri: construct/with decode-url new-uri port/scheme/spec
if new-uri/scheme <> 'http [
state/error: make-http-error {Redirect to a protocol different from HTTP not supported}
return state/awake make event! [type: 'error port: port]
]
either all [
new-uri/host = spec/host
new-uri/port-id = spec/port-id
] [
spec/path: new-uri/path
do-request port
false
] [
state/error: make-http-error "Redirect to other host - requires custom handling"
state/awake make event! [type: 'error port: port]
]
]
check-data: func [port /local headers res data out chunk-size mk1 mk2 trailer state conn] [
state: port/state
headers: state/info/headers
conn: state/connection
res: false
case [
headers/transfer-encoding = "chunked" [
data: conn/data
out: port/data: make binary! length? data
until [
either parse/all data [
copy chunk-size some hex-digits thru crlfbin mk1: to end
] [
chunk-size: to integer! to issue! chunk-size
either chunk-size = 0 [
if parse/all mk1 [
crlfbin (trailer: "") to end | copy trailer to crlf2bin to end
] [
trailer: construct trailer
append headers body-of trailer
state/state: 'ready
res: state/awake make event! [type: 'custom port: port code: 0]
clear data
]
true
] [
either parse/all mk1 [
chunk-size skip mk2: crlfbin to end
] [
insert/part tail out mk1 mk2
remove/part data skip mk2 2
empty? data
] [
true
]
]
] [
true
]
]
unless state/state = 'ready [read conn]
]
integer? headers/content-length [
port/data: conn/data
either headers/content-length <= length? port/data [
state/state: 'ready
conn/data: make binary! 32000
res: state/awake make event! [type: 'custom port: port code: 0]
] [
read conn
]
]
true [
port/data: conn/data
read conn
]
]
res
]
hex-digits: charset "1234567890abcdefABCDEF"
sys/make-scheme [
name: 'http
title: "HyperText Transport Protocol v1.1"
spec: make system/standard/port-spec-net [
path: %/
method: 'get
headers: []
content: none
timeout: 15
]
info: make system/standard/file-info [
response-line:
response-parsed:
headers: none
]
actor: [
read: func [
port [port!]
] [
either any-function? :port/awake [
unless open? port [cause-error 'Access 'not-open port/spec/ref]
if port/state/state <> 'ready [http-error "Port not ready"]
port/state/awake: :port/awake
do-request port
port
] [
sync-op port []
]
]
write: func [
port [port!]
value
] [
unless any [block? :value binary? :value any-string? :value] [value: form :value]
unless block? value [value: reduce [[Content-Type: "application/x-www-form-urlencoded; charset=utf-8"] value]]
either any-function? :port/awake [
unless open? port [cause-error 'Access 'not-open port/spec/ref]
if port/state/state <> 'ready [http-error "Port not ready"]
port/state/awake: :port/awake
parse-write-dialect port value
do-request port
port
] [
sync-op port [parse-write-dialect port value]
]
]
open: func [
port [port!]
/local conn
] [
if port/state [return port]
if none? port/spec/host [http-error "Missing host address"]
port/state: context [
state: 'inited
connection:
error: none
close?: no
info: make port/scheme/info [type: 'file]
awake: :port/awake
]
port/state/connection: conn: make port! [
scheme: 'tcp
host: port/spec/host
port-id: port/spec/port-id
ref: rejoin [tcp:// host ":" port-id]
]
conn/awake: :http-awake
conn/locals: port
open conn
port
]
open?: func [
port [port!]
] [
found? all [port/state open? port/state/connection]
]
close: func [
port [port!]
] [
if port/state [
close port/state/connection
port/state/connection/awake: none
port/state: none
]
port
]
copy: func [
port [port!]
] [
either all [port/spec/method = 'head port/state] [
reduce bind [name size date] port/state/info
] [
if port/data [copy port/data]
]
]
query: func [
port [port!]
/local error state
] [
if state: port/state [
either error? error: state/error [
state/error: none
error
] [
state/info
]
]
]
length?: func [
port [port!]
] [
either port/data [length? port/data] [0]
]
]
]


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It is often desirable to have concurrent access to a database where there is no need for full recoverability or transaction semantics. For this class of applications, Berkeley DB provides an interface supporting multiple-reader/single writer semantics on the database. This means that, at any instant in time, there may be either multiple readers accessing data or a single writer modifying data. The application is entirely unaware of which is happening, and Berkeley DB implements the necessary locking and blocking to ensure these semantics.
This chapter describes how to create concurrent access applications using Berkeley DB.
In order to create concurrent applications, you must first initialize an environment by calling db_appinit. You must specify the DB_INIT_CDB flag to that interface, and you may optionally also specify the DB_INIT_MPOOL flag. (If your application is doing concurrent access via a single multi-threaded process, DB_INIT_MPOOL will not be necessary, however, in the case of multiple processes sharing a database, it is.) As concurrent applications are not recoverable, you should not specify any of the other db_appinit subsystem configuration flags, e.g., you should not DB_INIT_LOCK, DB_INIT_LOG, DB_INIT_TXN, DB_RECOVER or DB_RECOVER_FATAL.
The DB_ENV structure returned by db_appinit must then be passed to all of the db_open calls made by your application.
The Berkeley DB access method calls used to support concurrent access are unchanged from the normal access method calls, with one exception, the DB->cursor interface. In the Berkeley DB Concurrent Access Methods product, each cursor must encapsulate the idea of being used for read-only access or for read-write access. There may only be one read-write cursor active at any one time. When your application creates a cursor, if that cursor will ever be used for writing, the DB_RMW flag must be specified when the cursor is created.
Because only a single thread of control may write the database at a time, care must be taken to ensure that applications do not inadvertently block themselves. Some common mistakes are:
Note that it is correct operation for two different threads of control (actual threads or processes) have multiple read-write cursors open, or for one thread to issue a DB->put call while another thread has a read-write cursor open, and it is only a problem if these things are done in a single thread of control.


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920
Class 1
Class 2
Class 3
Class 4
Class 5
Class 6
AB SORT
CLEARSEATS
CLEARSEATS
CLEARSEATS
CLEARSEATS
CLEARSEATS
CLEARSEATS


|
App Engine Python SDK
v1.6.9 rev.445
The Python runtime is available as an experimental Preview feature.
|
Public Member Functions | |
| def | get |
| def | post |
| def | InfoPage |
| def | IterRows |
| def | LoadEntities |
| def | Load |
| Public Member Functions inherited from google.appengine.ext.webapp._webapp25.RequestHandler | |
| def | initialize |
| def | get |
| def | post |
| def | head |
| def | options |
| def | put |
| def | delete |
| def | trace |
| def | error |
| def | redirect |
| def | handle_exception |
| def | new_factory |
| def | get_url |
Additional Inherited Members | |
| Public Attributes inherited from google.appengine.ext.webapp._webapp25.RequestHandler | |
| request | |
| response | |
A handler for bulk load requests. This class contains handlers for the bulkloading process. One for GET to provide cookie information for the upload script, and one handler for a POST request to upload the entities. In the POST request, the body contains the data representing the entities' property values. The original format was a sequences of lines of comma-separated values (and is handled by the Load method). The current (version 1) format is a binary format described in the Tools and Libraries section of the documentation, and is handled by the LoadV1 method).
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.get | ( | self | ) |
Handle a GET. Just show an info page.
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.InfoPage | ( | self, | |
| uri | |||
| ) |
Renders an information page with the POST endpoint and cookie flag. Args: uri: a string containing the request URI Returns: A string with the contents of the info page to be displayed
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.IterRows | ( | self, | |
| reader | |||
| ) |
Yields a tuple of a line number and row for each row of the CSV data. Args: reader: a csv reader for the input data.
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.Load | ( | self, | |
| kind, | |||
| data | |||
| ) |
Parses CSV data, uses a Loader to convert to entities, and stores them. On error, fails fast. Returns a "bad request" HTTP response code and includes the traceback in the output. Args: kind: a string containing the entity kind that this loader handles data: a string containing the CSV data to load Returns: tuple (response code, output) where: response code: integer HTTP response code to return output: string containing the HTTP response body
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.LoadEntities | ( | self, | |
| iter, | |||
| loader, | |||
key_format = None |
|||
| ) |
Generates entities and loads them into the datastore. Returns a tuple of HTTP code and string reply. Args: iter: an iterator yielding pairs of a line number and row contents. key_format: a format string to convert a line number into an entity id. If None, then entity ID's are automatically generated.
| def google.appengine.ext.bulkload.bulkload_deprecated.BulkLoad.post | ( | self | ) |
Handle a POST. Reads CSV data, converts to entities, and stores them.


- Here we use a pub/sub framework (*LaxarJS*) built in-house, then open-sourced
- Each of our view/activity components is a JS module
- *No dependencies* to other components!
- *Injections:* like AngularJS
- *view component*
- the product list is received through a *resource*
- the *patterns* helper library talks to the event bus for us
- it subscribes to topic that was *configured for the products feature* of the component
- it puts the current resource state under *context.resources*
- *render method* very similar to that of Flux/Redux
- uses an indirection (axReactRender) because LaxarJS knows where to put the render results


import com.sleepycat.db.*;public static DbTxnMgr open(String dir, int flags, int mode, DbEnv dbenv) throws DbException;
The dir pathname argument is interpreted as described in Berkeley DB File Naming.
The flags and mode arguments specify how files will be opened and/or created if they do not already exist. The flags value is specified by logically OR'ing together one or more of the following values:
The number of transactions that are potentially at risk is governed by how often the log is checkpointed (see db_checkpoint for more information) and how many log updates can fit on a single log page.
All files created by the transaction subsystem are created with mode mode (as described in chmod(2)) and modified by the process' umask value at the time of creation (see umask(2)))). The group ownership of created files is based on the system and directory defaults, and is not further specified by Berkeley DB.
The transaction subsystem is configured based on the dbenv argument. It is expected that applications will use a single DbEnv object as the argument to all of the subsystems in the Berkeley DB package. The fields of the DbEnv object used by DbTxnMgr.open are described below. Any of the DbEnv fields that are not explicitly set will default to appropriate values.
The following fields in the DbEnv object may be initialized, using the appropriate set method, before calling DbTxnMgr.open:
The DbTxnMgr.open method throws an exception that encapsulates an errno on failure.
The DbTxnMgr.open method may fail and throw an exception for any of the errors specified for the following Berkeley DB and C library functions: abort(3), close(3), DbEnv.version, fcntl(3), fflush(3), fprintf(3), free(3), fstat(3), fsync(3), getenv(3), getpid(3), getuid(3), isdigit(3), lseek(3), malloc(3), memcpy(3), memset(3), mmap(3), munmap(3), open(3), pstat_getdynamic(3), read(3), shmat(3), shmctl(3), shmdt(3), sigfillset(3), sigprocmask(3), stat(3), strerror(3), strlen(3), sysconf(3), time(3), DbTxnMgr.unlink, unlink(3), vfprintf(3), vsnprintf(3), and write(3).
In addition, the DbTxnMgr.open method may fail and throw an exception encapsulating errno for the following conditions:
The DB_THREAD flag was specified and spinlocks are not implemented for this architecture.
The dbenv parameter was null.