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  • Http Requests POST vs GET

    - by behrk2
    Hi everyone, I am using a lot of HTTP Requests in an application that I am writing which uses OAuth. Currently, I am sending my GET and POST requests the same way: HttpConnection connection = (HttpConnection) Connector.open(url + connectionParameters); connection.setRequestMethod(method); connection.setRequestProperty("WWW-Authenticate", "OAuth realm=api.netflix.com"); int responseCode = connection.getResponseCode(); And this is working fine. I am successfully POSTing and GETing. However, I am worried that I am not doing POST the right way. Do I need to include in the above code the following if-statement? if (method.equals("POST") && postData != null) { connection.setRequestProperty("Content-type", "application/x-www-form-urlencoded"); connection.setRequestProperty("Content-Length", Integer .toString(postData.length)); OutputStream requestOutput = connection.openOutputStream(); requestOutput.write(postData); requestOutput.close(); } If so, why? What's the difference? I would appreciate any feedback. Thanks!

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  • handling multiple Aspects in AspectJ

    - by rajank
    I have a query, when im using multiple Aspects in my aop.xml. here's the problem. i have defined some <include> and <exclude> in my <weaver>. i have 3 aspects in my aop file. i need to define a specific <include> and <exclude> for each aspects. how it is possible. Thanks in advance.

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  • MyEclipse builds workspace on saving JSP page every time

    - by Tahir Akram
    Whenever I save a jsp page, MyEclipse IDE start building the workspace. It should build when I change in any class file. Or if there are classes that not compiled. But why it start building whole workspace when I change in a JSP file. I am stuck on it. Please advise me on this problem. I am using MyEclipse 5.5 over Eclipse 3.2 Thanks.

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  • Enum.values() vs EnumSet.allOf( ). Which one is more preferable?

    - by Alexander Pogrebnyak
    I looked under the hood for EnumSet.allOf and it looks very efficient, especially for enums with less than 64 values. Basically all sets share the single array of all possible enum values and the only other piece of information is a bitmask which in case of allOf is set in one swoop. On the other hand Enum.values() seems to be a bit of black magic. Moreover it returns an array, not a collection, so in many cases it must be decorated with Arrays.asList( ) to be usable in any place that expects collection. So, should EnumSet.allOf be more preferable to Enum.values? More specifically, which form of for iterator should be used: for ( final MyEnum val: MyEnum.values( ) ); or for ( final MyEnum val: EnumSet.allOf( MyEnum.values ) );

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  • Check if thread is EDT is necessary?

    - by YuppieNetworking
    Hello, I have an UI implemented with Swing. One component does some work that may take some time, so I use SwingUtilities.invokeLater. However, I was reading some old code and found this in an ActionListener: if (!SwingUtilities.isEventDispatchThread()) { SwingUtilities.invokeLater(new Runnable() { public void run() { // code X } }); } else { // code X } I thought that it made sense since it separates code X from the EDT. However, I found it error-prone since I have used it a couple of times and both times I forgot the else part. The question is: is the SwingUtilities.isEventDispatchThread() checking necessary? Or could I assume that I am not in the EDT and always use invokeLater? Thanks a lot.

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  • HttpClient POST fails to submit the form + resulting string is cut-off (incomplete)

    - by Jayomat
    Hi, I'm writing an app to check for the bus timetable's. Therefor I need to post some data to a html page, submit it, and parse the resulting page with htmlparser. Though it may be asked a lot, can some one help me identify if 1) this page does support post/get (I think it does) 2) which fields I need to use? 3) How to make the actual request? this is my code so far: String url = "http://busspur02.aseag.de/bs.exe?Cmd=RV&Karten=true&DatumT=30&DatumM=4&DatumJ=2010&ZeitH=&ZeitM=&Suchen=%28S%29uchen&GT0=&HT0=&GT1=&HT1="; String charset = "CP1252"; System.out.println("startFrom: "+start_from); System.out.println("goTo: "+destination); //String tag.v List<NameValuePair> params = new ArrayList<NameValuePair>(); params.add(new BasicNameValuePair("HTO", start_from)); params.add(new BasicNameValuePair("HT1", destination)); params.add(new BasicNameValuePair("GTO", "Aachen")); params.add(new BasicNameValuePair("GT1", "Aachen")); params.add(new BasicNameValuePair("DatumT", day)); params.add(new BasicNameValuePair("DatumM", month)); params.add(new BasicNameValuePair("DatumJ", year)); params.add(new BasicNameValuePair("ZeitH", hour)); params.add(new BasicNameValuePair("ZeitM", min)); UrlEncodedFormEntity query = new UrlEncodedFormEntity(params, charset); HttpPost post = new HttpPost(url); post.setEntity(query); InputStream response = new DefaultHttpClient().execute(post).getEntity().getContent(); // Now do your thing with the facebook response. String source = readText(response,"CP1252"); Log.d(TAG_AVV,response.toString()); System.out.println("STREAM "+source); EDIT: This is my new code: try { HttpClient client = new DefaultHttpClient(); String getURL = "http://busspur02.aseag.de/bs.exe?SID=5FC39&ScreenX=1440&ScreenY=900&CMD=CR&Karten=true&DatumT="+day+"&DatumM="+month+"&DatumJ="+year+"&ZeitH="+hour+"&ZeitM="+min+"&Intervall=60&Suchen=(S)uchen&GT0=Aachen&T0=H&HT0="+start_from+"&GT1=Aachen&T0=H&HT1="+destination+""; HttpGet get = new HttpGet(getURL); HttpResponse responseGet = client.execute(get); HttpEntity resEntityGet = responseGet.getEntity(); if (resEntityGet != null) { //do something with the response Log.i("GET RESPONSE",EntityUtils.toString(resEntityGet)); } } catch (Exception e) { e.printStackTrace(); } But the output file is cut-off. If I do the same request in a browser I get like 14 different routes. Now the file suddenly stops and I only get 3 routes.... what's wrong? 04-30 12:19:12.362: INFO/GET RESPONSE(256): <!-- Ausgabebereich (automatisch erzeugt) --> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <div align="center"> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <p></p> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <p>Ihr Fahrplan für die Verbindung von Aachen, Kaiserplatz nach Aachen, Karlsgraben am Freitag, den 30.04.2010 (Koniginnedag), Abfahrten ab 12:19 Uhr</p> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <table class="Result"> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fussnote">Fussnote</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fahrzeug">Fahrzeug</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="abfahrt">Abfahrt</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="haltestellean">Haltestelle</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="linie">Linie</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="haltestelleab">Haltestelle</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="ankunft">Ankunft</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <th class="fahrzeit">Fahrzeit/Tarif</th> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td>&nbsp;</td><td>&nbsp;<img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:23</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz]&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>45</td><td title="lc0">Aachen, Karlsgraben&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:34</td><td>00:11 /  1,00</td><td>&nbsp;</td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=0&amp;SID=5FC39">Fahrtbegleiter</a>&nbsp;&nbsp;</td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><hr></td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td>&nbsp;</td><td>&nbsp;<img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:26</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz]&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>22</td><td title="lc0">Aachen, Karlsgraben&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:37</td><td>00:11 /  1,00</td><td>&nbsp;</td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=1&amp;SID=5FC39">Fahrtbegleiter</a>&nbsp;&nbsp;</td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><hr></td></tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <td>&nbsp;</td><td>&nbsp;<img src="http://www.busspur.de/logos/efa-bus.gif" title="Niederflurbus"></td><td>12:28</td><td title="lc0">Aachen, Kaiserplatz [Heinrichsalle Ri. Hansemannplatz]&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_kaiserplatz.pdf">Umgebungsplan</a></td><td>25</td><td title="lc0">Aachen, Karlsgraben&nbsp;<a href="http://download.avv.de/Umgebungsplaene/hlp_ac_karlsgraben.pdf">Umgebungsplan</a></td><td>12:39</td><td>00:11 /  1,00</td><td>&nbsp;</td> 04-30 12:19:12.362: INFO/GET RESPONSE(256): </tr> 04-30 12:19:12.362: INFO/GET RESPONSE(256): <tr><td colspan="9"><a href="/bs.exe?RI=2&amp;SID=5FC39">Fahrtbegl

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  • Embed Javafx in html

    - by Gabriel Martin
    Hi, I would like to simply ask if it is possible to embed a javafx application inside an html file. And if it is possible then I would like to know how to do this. I am open to using javascript etc. if it is required. Thanks.

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  • ORM model and DAO in my particular case

    - by EugeneP
    I have the DB structure as follows: table STUDENT (say, id, surname, etc) table STUDENT_PROPERTIES (say, name_of_the_property:char, value_of_the_property:char, student_id:FK) table COURSE (id, name, statusofcourse_id) table STATUSOFCOURSE (id, name_of_status:char ('active','inactive','suspended' etc)) table STUDENT_COURSE (student_id,course_id,statusofcourse_id) Let's try to pick up domain objects in my database: Student and Course are main entities. Student has a list of courses he attends, also he has a list of properties, that is all for this student. Next, Course entitity. It may contain a list of students that attend it. But in fact, the whole structure looks like this: the starting point is Student, with it's PK we can look a list of his properties, then we look into the STUDENT_COURSE and extract both FK of the Course entity and also the Status of the combination, it would look like "Student named bla bla, with all his properties, attends math and the status of it is "ACTIVE". now, quotation 1) Each DAO instance is responsible for one primary domain object or entity. If a domain object has an independent lifecycle, it should have its own DAO. 2) The DAO is responsible for creations, reads (by primary key), updates, and deletions -- that is, CRUD -- on the domain object. Now, first question is What are entities in my case? Student, Course, Student_Course, Status = all except for StudentProperties? Do I have to create a separate DAO for every object?

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  • Difference between the List and Enumeration

    - by harigm
    I have a written a method to get all the records and return in the List Type, but I got out of memory error. So I changed return type from List to Enumeration, in the method, instead of ArrayList, uses Vector and return vector.elements at the end of the method. It works without any error. but I did not understand why. Could someone explain Why this Enumeration worked?

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  • Handling hundreds of actions in Struts2

    - by Roberto
    Hi all, I've inherited a struts 1 web application where, in order to reduce the number of Action classes (I guess this is the reason), lots of actions are mapped inside a single Action class, like: public XXXAction() throws Exception{ actions = new Hashtable(); actions.put("/XXX/main/load", new Integer(0)); actions.put("/XXX/main/save", new Integer(1)); ...... } public ActionForward executeAction(ActionMapping mapping, ActionForm form, HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException { try { switch (((Integer) actions.get(action)).intValue()) { case 0: loadXXXMain(); break; case 1: ....... and so on (in some Action classes I have almost one hundred of these small actions). Now I'm looking at migrate to struts2 and I would like to have a cleaner and better solution to handle this, maybe without having a single Action class for each of these small classes. What do you suggest? I don't like this solution, but I don't like having hundreds of Action classes.... Thanks! Roberto

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  • How to implement login page using Spring Security so that it works with Spring web flow?

    - by simon
    I have a web application using Spring 2.5.6 and Spring Security 2.0.4. I have implemented a working login page, which authenticates the user against a web service. The authentication is done by defining a custom authentincation manager, like this: <beans:bean id="customizedFormLoginFilter" class="org.springframework.security.ui.webapp.AuthenticationProcessingFilter"> <custom-filter position="AUTHENTICATION_PROCESSING_FILTER" /> <beans:property name="defaultTargetUrl" value="/index.do" /> <beans:property name="authenticationFailureUrl" value="/login.do?error=true" /> <beans:property name="authenticationManager" ref="customAuthenticationManager" /> <beans:property name="allowSessionCreation" value="true" /> </beans:bean> <beans:bean id="customAuthenticationManager" class="com.sevenp.mobile.samplemgmt.web.security.CustomAuthenticationManager"> <beans:property name="authenticateUrlWs" value="${WS_ENDPOINT_ADDRESS}" /> </beans:bean> The authentication manager class: public class CustomAuthenticationManager implements AuthenticationManager, ApplicationContextAware { @Transactional @Override public Authentication authenticate(Authentication authentication) throws AuthenticationException { //authentication logic return new UsernamePasswordAuthenticationToken(principal, authentication.getCredentials(), grantedAuthorityArray); } The essential part of the login jsp looks like this: <c:url value="/j_spring_security_check" var="formUrlSecurityCheck"/> <form method="post" action="${formUrlSecurityCheck}"> <div id="errorArea" class="errorBox"> <c:if test="${not empty param.error}"> ${sessionScope["SPRING_SECURITY_LAST_EXCEPTION"].message} </c:if> </div> <label for="loginName"> Username: <input style="width:125px;" tabindex="1" id="login" name="j_username" /> </label> <label for="password"> Password: <input style="width:125px;" tabindex="2" id="password" name="j_password" type="password" /> </label> <input type="submit" tabindex="3" name="login" class="formButton" value="Login" /> </form> Now the problem is that the application should use Spring Web Flow. After the application was configured to use Spring Web Flow, the login does not work anymore - the form action to "/j_spring_security_check" results in a blank page without error message. What is the best way to adapt the existing login process so that it works with Spring Web Flow?

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  • JEE Web Applications vs Web Services

    - by Zac
    Can someone confirm or clarify for me: From what I can tell, JEE web apps consist of a Servlet and/or JSP driven dynamic web page being fed back in the HTTP response, triggered by the JEE server receiving a HTTP GET or POST request. From what I can tell, JEE web services also make use of Servlets as the web tier components, however a WS Servlet receives a SOAP message and validates the contents of those messages with whatever WSDL the Servlet is WARed with. The response is also packaged in SOAP and sent back to the requestor. So, from what I can tell, both JEE web apps and WSes use Servlets as the web components, with the only real difference being the protocol used (raw HTTP vs SOAP, which is an extension of HTTP). This is the best I could come up with - am I right? Totally wrong? Close?

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  • Prefuse: Reloading of XML files

    - by John
    Hello all, I am a new to the prefuse visualization toolkit and have a couple of general questions. For my purpose, I would like to perform an initial visualization using prefuse (graphview / graphml). Once rendered, upon a user click of a node, I would like to completely reload a new xml file for a new visualization. I want to do this in order to allow me to "pre-package" graphs for display. For example. If I search for Ted. I would like to have an xml file relating to Ted load and render a display. Now in the display I see that Ted has nodes associated called Bill and Joe. When I click Joe, I would like to clear the display and load an xml file associated with Joe. And so on. I have looked into loading one very large xml file containing all node and node relationship info and allowing prefuse to handle this using the hops from one level to another. However, eventually I am sure that system performance issues will arise due to the size of data. Thanks in advance for any help, John

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  • Confused about this factory, as it doesn't look like an Abstract Factory nor Factory Method

    - by Pin
    I'm looking into Guice and I've been reading its documentation recently. Reading the motivation section I don't understand the factories part, why they name it that way. To me that factory is just a wrapper for the implementing class they want it to return after calling getInstance(). public class CreditCardProcessorFactory { private static CreditCardProcessor instance; public static void setInstance(CreditCardProcessor creditCardProcessor) { instance = creditCardProcessor; } public static CreditCardProcessor getInstance() { if (instance == null) { throw new IllegalStateException("CreditCardProcessorFactory not initialized. " + "Did you forget to call CreditCardProcessor.setInstance() ?"); } return instance; } } Why do they call it factory as well if it is neither an abstract factory nor a factory method? Or am I missing something? Thanks.

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  • Generate an LTPA token?

    - by Shadowman
    We have a need to integrate a server with our WebSphere environment that does not support LTPA. I found the blog post here and corresponding code to decode the information in an LTPA token. However, there's no code explaining the digital signature and how that's generated/validated. Does anyone have any information on how to generate an LTPA token in custom code?

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  • Perf4j Not Logging to Separate File

    - by Jehud
    I setup some stop watch calls in my code to measure some code blocks and all the messages are going into my primary log and not into the timing log. The perfStats.log file gets created just fine but all the messages go to the root log which I didn't think was supposed to happen according to the docs I've read. Is there something obvious I'm missing here? Example log4j.xml <!-- This file appender is used to output aggregated performance statistics --> <appender name="fileAppender" class="org.apache.log4j.FileAppender"> <param name="File" value="perfStats.log"/> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%m%n"/> </layout> </appender> <!-- Loggers --> <!-- The Perf4J logger. Note that org.perf4j.TimingLogger is the value of the org.perf4j.StopWatch.DEFAULT_LOGGER_NAME constant. Also, note that additivity is set to false, which is usually what is desired - this means that timing statements will only be sent to this logger and NOT to upstream loggers. --> <logger name="org.perf4j.TimingLogger" additivity="false"> <level value="INFO"/> <appender-ref ref="CoalescingStatistics"/> </logger> <root> <priority value="info"/> <appender-ref ref="STDOUT-DEBUG"/> </root>

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  • Troubles Iterating Over A HashMap with JSF, MyFaces & Facelets

    - by Lee Theobald
    Hi all, I'm having some trouble looping over a HashMap to print out it's values to the screen. Could someone double check my code to see what I'm doing wrong. I can't seem to find anything wrong but there must be something. In a servlet, I am adding the following to the request: Map<String, String> facetValues = new HashMap<String, String>(); // Filling the map req.setAttribute(facetField.getName(), facetValues); In one case "facetField.getName()" evaluates to "discipline". So in my page I have the following: <ui:repeat value="${requestScope.discipline}" var="item"> <li>Item: <c:out value="${item}"/>, Key: <c:out value="${item.key}"/>, Value: <c:out value="${item.item}"/></li> </ui:repeat> The loop is ran once but all the outputs are blank?!? I would have at least expected something in item if it's gone over the loop once. Checking the debug popup for Facelets, discipline is there and on the loop. Printing it to the screen results in something that looks like a map to me (I've shortened the output) : {300=0, 1600=0, 200=0, ... , 2200=0} I've also tried with a c:forEach but I'm getting the same results. So does anyone have any ideas where I'm going wrong? Thanks for any input, Lee

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  • Variable cannot be resolved

    - by Devel
    Hi, I am trying to create an item list, diffrent for each i and j variable. My code is: if (i == 0) { if (j == 0) { final CharSequence[] items = {"4:45", "5:00"} } else if (j == 1) { final CharSequence[] items = {"4:43", "4:58"} } else if (j == 2) { final CharSequence[] items = {"4:41", "4:56"} } else { final CharSequence[] items = {"4:38", "4:53"} } ... new AlertDialog.Builder(this) .setTitle("Hours") .setItems(items, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialoginterface, int i) { // getStation(i); } }) .show(); } I get an error in the line .setItems(items,: items cannot be resolved I think that the compiler thinks that the CharSequence[] items may not be initialised or something... How can I make this programme run?

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  • Jboss Messaging JMS

    - by Gandalf StormCrow
    I successfully managed to send the message to queue name ReceiverQueue on my localhost Jboss server, how can I retrieve message I sent to it or how do I check if there is any messages in the queue if any retrieve them .. or can I get an explanation of some sort what is the best way to do this. Thank you

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  • How to avoid using this in a contructor

    - by Paralife
    I have this situation: interface MessageListener { void onMessageReceipt(Message message); } class MessageReceiver { MessageListener listener; public MessageReceiver(MessageListener listener, other arguments...) { this.listener = listener; } loop() { Message message = nextMessage(); listener.onMessageReceipt(message); } } and I want to avoid the following pattern: (Using the this in the Client constructor) class Client implements MessageListener { MessageReceiver receiver; MessageSender sender; public Client(...) { receiver = new MessageReceiver(this, other arguments...); sender = new Sender(...); } . . . @Override public void onMessageReceipt(Message message) { if(Message.isGood()) sender.send("Congrtulations"); else sender.send("Boooooooo"); } } The reason why i need the above functionality is because i want to call the sender inside the onMessageReceipt() function, for example to send a reply. But I dont want to pass the sender into a listener, so the only way I can think of is containing the sender in a class that implements the listener, hence the above resulting Client implementation. Is there a way to achive this without the use of 'this' in the constructor? It feels bizare and i dont like it, since i am passing myself to an object(MessageReceiver) before I am fully constructed. On the other hand, the MessageReceiver is not passed from outside, it is constructed inside, but does this 'purifies' the bizarre pattern? I am seeking for an alternative or an assurance of some kind that this is safe, or situations on which it might backfire on me.

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  • JTable custom header renderer that looks like other headers with nimbus look and feel?

    - by startoftext
    Any time I create a custom header renderer for a JTable it ends up not looking correct with the nimbus look and feel. The default table headers have a silvery gradient, custom renderers do not look that way. In the past I just avoided creating custom header renderers. Is it possible to copy the default look onto my new custom renderer? Basically I want to add a checkbox and have the area around it look like a normal column header, not just gray. I do know how to add the checkbox though and make it click-able. Thanks

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