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  • How can I configure apigee to fail stale if the backend is unavialble?

    - by Anurag Kapur
    We have an API proxy configured with cache ttl of 2mins. Is it possible to configure apigee to serve stale cached content if the backend goes down so that our end users don't see errors? We would rather have our end users get copies of stale cached content (even after the configured ttl of 2mins expires) instead of errors when the backend goes down. Would appreciate if someone could point me to the relevant documentation if this is possible.

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  • extract variables from an expression using javascript regexp

    - by powerboy
    For example, here is a string representing an expression: var str = 'total = sum(price * qty) * 1.09875'; I want to extract variables (i.e., 'total', 'price' and 'qty' but not 'sum' since 'sum' is a function name) from this expression. What is the regexp pattern in javascript? Variable name consists of letters, digits, or the underscore, beginning with letters or the underscore.

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  • Reinject dependencies of a freshly deserialized object

    - by NathanE
    If a program has literally just deserialized an object (doesn't really matter how, but just say BinaryFormatter was used). What is a good design to use for re-injecting the dependencies of this object? Is there a common pattern for this? I suppose I would need to wrap the Deserialize() method up to act as a factory inside the container. Thanks!

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  • List files that don't match a string in bash

    - by Javier
    Dear all, I'm a newbie in bash and I would like to pass as parameter to a python function all files in a directory that don't match a given pattern. sth. like: $myscripts/myprog.py $myfiles/!(bonjovi) The above example should retrieve all files that don't match to "bonjovi". Best wishes

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  • Delayed instantiation with c# using statment

    - by fearofawhackplanet
    Is there any way to write a using statement without instantiating the IDisposable immediately? For example, if I needed to do something like: using (MyThing thing) { if (_config == null) { thing = new MyThing(); } else { thing = new MyThing(_config); } // do some stuff } // end of 'using' Is there an accepted pattern for cases like this? Or am I back to handling the IDisposable explicitly again?

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  • Linux C++: how to profile time wasted due to cache misses?

    - by anon
    I know that I can use gprof to benchmark my code. However, I have this problem -- I have a smart pointer that has an extra level of indirection (think of it as a proxy object). As a result, I have this extra layer that effects pretty much all functions, and screws with caching. Is there a way to measure the time my CPU wastes due to cache misses? Thanks!

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  • problem with struts actions and redirections

    - by Casey
    I am trying to update a simple web app that was built with struts2, jsp and standard servlets. I am trying to redirect a url to a specific action but can't seem to get it to work right. For example, the url that is correct is: http://localhost:8080/theapp/lookup/search.action Here is my web.xml: <?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd"><web-app> <display-name>theapp</display-name> <filter> <filter-name>struts2</filter-name> <filter-class> org.apache.struts2.dispatcher.FilterDispatcher </filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> And here is my struts.xml: <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd"> <default-action-ref name="search" /> <action name="search" method="search" class="com.theapp.SearchAction" > <result>index.jsp</result> <result name="input" >index.jsp</result> <result name="error" type="redirect">site_locator_mobile/error.action</result> </action> The problem here is that if I don't specify the correct url as above, I just get the index.jsp file, but without any properties in index.jsp being processed because the information is contained in the servlet. What I would like to is if someone just entered: http://localhost:8080/theapp/lookup/ than they would be taken to: http://localhost:8080/theapp/lookup/search.action Thanks

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  • what is the best way to track unique visitors?

    - by dnkira
    hello what i want is to make user counter as true as possible. exluding bots, and clever users as much as possible. as 4 what i know, it can be done in several ways: ip (trouble with dinamic ones and proxy's) cookies (with session id maybe, but can be deleted or browser can be changed) flash cookies (not all users have it) any other ways? and what is the best?

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  • need help me in excel-vba

    - by aos
    Private Sub cmdClear_Click() Dim Confirm As Integer Confirm = MsgBox("Are you sure you want clear this Sheet?", vbYesNo, "WARNING: Date Changed") If Confirm = 6 Then Sheets("OPV").Activate 'Sheets("OPV").Activate Sheets("OPV").Range("B4:BZ1000").ClearContents Sheets("OPV").Range("B4:BZ1000").Interior.Pattern = xlNone Sheets("OPV").Activate Sheets("OPV").Range("B4").Activate MsgBox " Done .. ", vbInformation, "Clear ......" End If End Sub

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  • Dynamicall Rendering in a Scrollable Area

    - by James
    What is the generic algorithm or process that is commonly used to dynamically render portions of a scrolling area? For example, in Google Maps, when the user scrolls past the bounds of the currently rendered area, a grey checkerboard pattern is displayed within the not-yet-rendered portions while the application loads and renders those areas. I'm looking specifically for the approach, or the mathematics, related to filling a graphics area in chunks based on what has just come into view. If possible, I'm looking for anything relevant to the GDI+ process of doing so.

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  • Client for restful web service

    - by Ish
    I'd like to create a http-centric client for a restful web service created using CXF. To that end: Does any one know the (maven) dependencies for ONLY the CXF clients (Proxy & HTTP)? Is there any advantage to using CXF's built-in clients over say, Apache HttpClient?

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  • How to determine if object in another AppDomain has gone

    - by Dmitry Lobanov
    I instantiate an object of some class in other ApDomain using CreateInstanceAndUnwrap(). I can determine if this object resides in other domain by using RemotingServices.IsTransparentProxy(). But can I determine if the real remote object has gone away (e.g. was garbage collected) without probing a call on proxy and catching RemotingException? Is it possible?

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  • problem with JsonStore and JsonReader

    - by kalan
    Hello, In my ExtJS application I use EditorGridPanel to show data from server. var applicationsGrid = new Ext.grid.EditorGridPanel({ region: 'west', layout: 'fit', title: '<img src="../../Content/img/app.png" /> ??????????', collapsible: true, margins: '0 0 5 5', split: true, width: '30%', listeners: { 'viewready': { fn: function() { applicationsGridStatusBar.setText('??????????: ' + applicationsStore.getTotalCount()); } } }, store: applicationsStore, loadMask: { msg: '????????...' }, sm: new Ext.grid.RowSelectionModel({ singleSelect: true, listeners: { 'rowselect': { fn: applicationsGrid_onRowSelect} } }), viewConfig: { forceFit: true }, tbar: [{ icon: '../../Content/img/add.gif', text: '????????' }, '-', { icon: '../../Content/img/delete.gif', text: '???????' }, '-'], bbar: applicationsGridStatusBar, columns: [{ header: '??????????', dataIndex: 'ApplicationName', tooltip: '???????????? ??????????', sortable: true, editor: { xtype: 'textfield', allowBlank: false } }, { header: '<img src="../../Content/img/user.png" />', dataIndex: 'UsersCount', align: 'center', fixed: true, width: 50, tooltip: '?????????? ????????????? ??????????', sortable: true }, { header: '<img src="../../Content/img/role.gif" />', dataIndex: 'RolesCount', align: 'center', fixed: true, width: 50, tooltip: '?????????? ????? ??????????', sortable: true}] }); When I use JsonStore without reader it works, but when I try to update any field it uses my 'create' url instead of 'update'. var applicationsStore = new Ext.data.JsonStore({ root: 'applications', totalProperty: 'total', idProperty: 'ApplicationId', messageProperty: 'message', fields: [{ name: 'ApplicationId' }, { name: 'ApplicationName', allowBlank: false }, { name: 'UsersCount', allowBlank: false }, { name: 'RolesCount', allowBlank: false}], id: 'app1234', proxy: new Ext.data.HttpProxy({ api: { create: '/api/applications/getapplicationslist1', read: '/api/applications/getapplicationslist', update: '/api/applications/getapplicationslist2', destroy: '/api/applications/getapplicationslist3' } }), autoSave: true, autoLoad: true, writer: new Ext.data.JsonWriter({ encode: false, listful: false, writeAllFields: false }) }); I believe that the problem is that I don't use reader, but when I use JsonReader grid stops showing any data at all. var applicationReader = new Ext.data.JsonReader({ root: 'applications', totalProperty: 'total', idProperty: 'ApplicationId', messageProperty: 'message', fields: [{ name: 'ApplicationId' }, { name: 'ApplicationName', allowBlank: false }, { name: 'UsersCount', allowBlank: false }, { name: 'RolesCount', allowBlank: false}] }); var applicationsStore = new Ext.data.JsonStore({ id: 'app1234', proxy: new Ext.data.HttpProxy({ api: { create: '/api/applications/getapplicationslist1', read: '/api/applications/getapplicationslist', update: '/api/applications/getapplicationslist2', destroy: '/api/applications/getapplicationslist3' } }), reader: applicationReader, autoSave: true, autoLoad: true, writer: new Ext.data.JsonWriter({ encode: false, listful: false, writeAllFields: false }) }); So, does anyone know what the problem might be and how to solve it. The data returned from my server is Json-formated and seams to be ok {"message":"test","total":2,"applications":[{"ApplicationId":"f82dc920-17e7-45b5-98ab-03416fdf52b2","ApplicationName":"Archivist","UsersCount":6,"RolesCount":3},{"ApplicationId":"054e2e78-e15f-4609-a9b2-81c04aa570c8","ApplicationName":"Test","UsersCount":1,"RolesCount":0}]}

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  • is there a proper way to handle multiple errors/exceptions?

    - by toPeerOrNotToPeer
    in OO programming, is there some conceptual pattern, ideas, about handling multiple errors? for example, i have a method that performs some checks and should return an error message for each error found ['name is too short', 'name contains invalid unicode sequences', 'name is too long'] now, should i use an array of exceptions (not thrown exceptions)? or something like this is better: class MyExceptionList extends Exception{ public Void addException(Exception e){} public Array getExceptions(){} } any theory behind this argument will be appreciated! (this isn't a request about a specific programming language, but a pure theoretical one) thank you in advance

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  • how to decode quoted-printable using java

    - by shikha
    Hi Can anyone please tell me how to decode quoted-printable using java. Actually i am reading mail from the server and fetching some data from mail using regex.My mail content type is text/html and because of which i am getting html tags along with the data and making very difficult for me to do the pattern matching. it is showing some =20 or =cF etc like characters also. How i can resolve this problem??? Thanks and Regards, Shikha Virmani

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  • extJs Json Reader

    - by tinti
    Please help me with this problem. I'm new in extJs and i need a little help. I have this code Ext.onReady(function() { var datesStore = new Ext.data.JsonStore({ start : 'StartTableDate', end : 'FinishTableDate', autoLoad : true, proxy : new Ext.data.HttpProxy({ url : 'dates.json', method:'GET' }), fields : [ // 2 mandatory fields {name:'StartTableDate'}, {name:'FinishTableDate'} ] }); // i want to pass to variable start si end the values from JSON var start = 'StartTableDate'; var end = 'FinishTableDate';

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  • Should I use ICommand or Expression.Interactions InvokeCommand for MVVM in Silverlight 4?

    - by phejndorf
    I'm about to embark on a new project in Silverlight 4, and definitely want to take advantage of the MVVM pattern, now I've finally grasped the basics. For implementing commands in Silverlight 4 it seems there are rather a lot of options ranging from the new built-in Command/ICommand option on the Button, over the InvokeCommand defined in the Microsoft.Expressions.Interactivity namespace and on to the range of assisting MVVM frameworks (Prism, MVVMlight etc). Does anyone here have gotcha's, experience and wisdom to share on this subject?

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