mirror of https://github.com/apache/activemq.git
https://issues.apache.org/jira/browse/AMQ-3094 - ajax does not receive all messages
* ensure delivery of messages received by AjaxListener when a continuation is not available for resumption. * add test coverage for several common uses of AjaxServlet * switch back to jetty httpclient for better processing of asynchronous HTTP git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1064725 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alex Dean
parent
acc3d4f7cb
commit
88fc7fec50
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@ -132,13 +132,6 @@
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<artifactId>derby</artifactId>
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</dependency>
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<dependency>
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<groupId>commons-httpclient</groupId>
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<artifactId>commons-httpclient</artifactId>
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<version>3.1</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<properties>
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@ -16,52 +16,451 @@
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*/
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package org.apache.activemq.web;
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import org.apache.activemq.transport.stomp.StompConnection;
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import org.apache.activemq.transport.stomp.StompFrame;
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import org.apache.activemq.transport.stomp.Stomp;
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import java.lang.Thread;
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import java.net.SocketTimeoutException;
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import org.apache.commons.httpclient.HttpClient;
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import org.apache.commons.httpclient.HttpMethod;
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import org.apache.commons.httpclient.methods.GetMethod;
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import org.apache.commons.httpclient.methods.PostMethod;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.commons.lang.StringUtils;
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import java.util.*;
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import org.eclipse.jetty.io.Buffer;
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import org.eclipse.jetty.client.ContentExchange;
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import org.eclipse.jetty.client.HttpClient;
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import org.eclipse.jetty.http.HttpFields;
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import org.eclipse.jetty.io.ByteArrayBuffer;
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import javax.jms.MessageProducer;
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import javax.jms.Message;
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import javax.jms.TextMessage;
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public class AjaxTest extends JettyTestSupport {
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private static final Log LOG = LogFactory.getLog(AjaxTest.class);
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private String expectedResponse = "<ajax-response>\n" +
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"<response id='handler' destination='queue://test' >test one</response>\n" +
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"<response id='handler' destination='queue://test' >test two</response>\n" +
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"<response id='handler' destination='queue://test' >test three</response>\n" +
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"</ajax-response>";
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public void testReceiveMultipleMessagesFromQueue() throws Exception {
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MessageProducer local_producer = session.createProducer(session.createQueue("test"));
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HttpClient httpClient = new HttpClient();
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PostMethod post = new PostMethod( "http://localhost:8080/amq" );
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post.addParameter( "destination", "queue://test" );
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post.addParameter( "type", "listen" );
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post.addParameter( "message", "handler" );
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httpClient.executeMethod( post );
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// send message
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TextMessage msg1 = session.createTextMessage("test one");
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producer.send(msg1);
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TextMessage msg2 = session.createTextMessage("test two");
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producer.send(msg2);
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TextMessage msg3 = session.createTextMessage("test three");
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producer.send(msg3);
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HttpMethod get = new GetMethod( "http://localhost:8080/amq?timeout=5000" );
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httpClient.executeMethod( get );
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byte[] responseBody = get.getResponseBody();
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String response = new String( responseBody );
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LOG.info("Poll response: " + response);
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assertEquals("Poll response not right", expectedResponse.trim(), response.trim());
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private class AjaxTestContentExchange extends ContentExchange {
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private HashMap<String,String> headers;
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private String responseContent;
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AjaxTestContentExchange() {
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super(true);
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this.headers = new HashMap<String,String>();
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this.responseContent = "";
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}
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protected void onResponseContent( Buffer content ) {
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this.responseContent += content.toString();
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}
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protected void onResponseHeader( Buffer name, Buffer value ) {
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headers.put( name.toString(), value.toString() );
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}
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public String getJsessionId() {
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String cookie = headers.get( "Set-Cookie" );
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String[] cookie_parts = cookie.split( ";" );
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return cookie_parts[0];
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}
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public String getResponseContent() {
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return responseContent;
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}
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}
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public void assertContains( String expected, String actual ) {
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assertTrue( "'"+actual+"' does not contain expected fragment '"+expected+"'", actual.indexOf( expected ) != -1 );
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}
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public void assertResponseCount( int expected, String actual ) {
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int occurrences = StringUtils.countMatches( actual, "<response" );
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assertEquals( "Expected number of <response> elements is not correct.", expected, occurrences );
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}
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public void testAjaxClientReceivesMessagesWhichAreSentToQueueWhileClientIsPolling() throws Exception {
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LOG.debug( "*** testAjaxClientReceivesMessagesWhichAreSentToQueueWhileClientIsPolling ***" );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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// client 1 subscribes to a queue
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LOG.debug( "SENDING LISTEN" );
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer("destination=queue://test&type=listen&message=handler") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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String jsessionid = contentExchange.getJsessionId();
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// client 1 polls for messages
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LOG.debug( "SENDING POLL" );
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AjaxTestContentExchange poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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// while client 1 is polling, client 2 sends messages to the queue
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LOG.debug( "SENDING MESSAGES" );
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contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer(
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"destination=queue://test&type=send&message=msg1&"+
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"d1=queue://test&t1=send&m1=msg2&"+
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"d2=queue://test&t2=send&m2=msg3"
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) );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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LOG.debug( "DONE POSTING MESSAGES" );
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// wait for poll to finish
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poll.waitForDone();
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String response = poll.getResponseContent();
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// messages might not all be delivered during the 1st poll. We need to check again.
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poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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poll.waitForDone();
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String fullResponse = response + poll.getResponseContent();
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LOG.debug( "full response : " + fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >msg1</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >msg2</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >msg3</response>\n", fullResponse );
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assertResponseCount( 3, fullResponse );
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}
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public void testAjaxClientReceivesMessagesWhichAreSentToTopicWhileClientIsPolling() throws Exception {
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LOG.debug( "*** testAjaxClientReceivesMessagesWhichAreSentToTopicWhileClientIsPolling ***" );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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// client 1 subscribes to a queue
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LOG.debug( "SENDING LISTEN" );
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer("destination=topic://test&type=listen&message=handler") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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String jsessionid = contentExchange.getJsessionId();
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// client 1 polls for messages
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LOG.debug( "SENDING POLL" );
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AjaxTestContentExchange poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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// while client 1 is polling, client 2 sends messages to the queue
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LOG.debug( "SENDING MESSAGES" );
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contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer(
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"destination=topic://test&type=send&message=msg1&"+
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"d1=topic://test&t1=send&m1=msg2&"+
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"d2=topic://test&t2=send&m2=msg3"
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) );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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LOG.debug( "DONE POSTING MESSAGES" );
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// wait for poll to finish
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poll.waitForDone();
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String response = poll.getResponseContent();
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// not all messages might be delivered during the 1st poll. We need to check again.
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poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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poll.waitForDone();
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String fullResponse = response + poll.getResponseContent();
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LOG.debug( "full response : " + fullResponse );
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assertContains( "<response id='handler' destination='topic://test' >msg1</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='topic://test' >msg2</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='topic://test' >msg3</response>\n", fullResponse );
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assertResponseCount( 3, fullResponse );
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}
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public void testAjaxClientReceivesMessagesWhichAreQueuedBeforeClientSubscribes() throws Exception {
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LOG.debug( "*** testAjaxClientReceivesMessagesWhichAreQueuedBeforeClientSubscribes ***" );
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// send messages to queue://test
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producer.send( session.createTextMessage("test one") );
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producer.send( session.createTextMessage("test two") );
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producer.send( session.createTextMessage("test three") );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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// client 1 subscribes to queue
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LOG.debug( "SENDING LISTEN" );
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer("destination=queue://test&type=listen&message=handler") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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String jsessionid = contentExchange.getJsessionId();
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// client 1 polls for messages
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LOG.debug( "SENDING POLL" );
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AjaxTestContentExchange poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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// wait for poll to finish
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poll.waitForDone();
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String response = poll.getResponseContent();
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assertContains( "<response id='handler' destination='queue://test' >test one</response>\n", response );
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assertContains( "<response id='handler' destination='queue://test' >test two</response>\n", response );
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assertContains( "<response id='handler' destination='queue://test' >test three</response>\n", response );
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assertResponseCount( 3, response );
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}
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public void testStompMessagesAreReceivedByAjaxClient() throws Exception {
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LOG.debug( "*** testStompMessagesAreRecievedByAjaxClient ***" );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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// client 1 subscribes to a queue
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LOG.debug( "SENDING LISTEN" );
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer("destination=queue://test&type=listen&message=handler") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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String jsessionid = contentExchange.getJsessionId();
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// client 1 polls for messages
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LOG.debug( "SENDING POLL" );
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AjaxTestContentExchange poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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// stomp client queues some messages
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StompConnection connection = new StompConnection();
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connection.open("localhost", 61613);
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connection.connect("user", "password");
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HashMap<String, String> headers = new HashMap<String, String>();
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headers.put( "amq-msg-type", "text" );
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connection.send( "/queue/test", "message1", (String)null, headers );
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connection.send( "/queue/test", "message2", (String)null, headers );
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connection.send( "/queue/test", "message3", (String)null, headers );
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connection.send( "/queue/test", "message4", (String)null, headers );
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connection.send( "/queue/test", "message5", (String)null, headers );
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connection.disconnect();
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// wait for poll to finish
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poll.waitForDone();
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String response = poll.getResponseContent();
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// not all messages might be delivered during the 1st poll. We need to check again.
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poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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poll.waitForDone();
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String fullResponse = response + poll.getResponseContent();
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assertContains( "<response id='handler' destination='queue://test' >message1</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >message2</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >message3</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >message4</response>\n", fullResponse );
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assertContains( "<response id='handler' destination='queue://test' >message5</response>\n", fullResponse );
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assertResponseCount( 5, fullResponse );
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}
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public void testAjaxMessagesAreReceivedByStompClient() throws Exception {
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LOG.debug( "*** testAjaxMessagesAreReceivedByStompClient ***" );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer(
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"destination=queue://test&type=send&message=msg1&"+
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"d1=queue://test&t1=send&m1=msg2&"+
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"d2=queue://test&t2=send&m2=msg3&"+
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"d3=queue://test&t3=send&m3=msg4") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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StompConnection connection = new StompConnection();
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connection.open("localhost", 61613);
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connection.connect("user", "password");
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connection.subscribe( "/queue/test" );
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StompFrame message;
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String allMessageBodies = "";
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try {
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while( true ) {
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message = connection.receive(5000);
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allMessageBodies = allMessageBodies +"\n"+ message.getBody();
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}
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} catch (SocketTimeoutException e) {}
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LOG.debug( "All message bodies : " + allMessageBodies );
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assertContains( "msg1", allMessageBodies );
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assertContains( "msg2", allMessageBodies );
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assertContains( "msg3", allMessageBodies );
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assertContains( "msg4", allMessageBodies );
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}
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public void testAjaxClientMayUseSelectors() throws Exception {
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LOG.debug( "*** testAjaxClientMayUseSelectors ***" );
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// send 2 messages to the same queue w/ different 'filter' values.
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Message msg = session.createTextMessage("test one");
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msg.setStringProperty( "filter", "one" );
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producer.send( msg );
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msg = session.createTextMessage("test two");
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msg.setStringProperty( "filter", "two" );
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producer.send( msg );
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HttpClient httpClient = new HttpClient();
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httpClient.start();
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httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
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// client ubscribes to queue
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LOG.debug( "SENDING LISTEN" );
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AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
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contentExchange.setMethod( "POST" );
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contentExchange.setURL("http://localhost:8080/amq");
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contentExchange.setRequestContent( new ByteArrayBuffer("destination=queue://test&type=listen&message=handler") );
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contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
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// SELECTOR
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contentExchange.setRequestHeader( "selector", "filter='two'" );
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httpClient.send(contentExchange);
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contentExchange.waitForDone();
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String jsessionid = contentExchange.getJsessionId();
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// client 1 polls for messages
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LOG.debug( "SENDING POLL" );
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AjaxTestContentExchange poll = new AjaxTestContentExchange();
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poll.setMethod( "GET" );
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poll.setURL("http://localhost:8080/amq?timeout=5000");
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poll.setRequestHeader( "Cookie", jsessionid );
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httpClient.send( poll );
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poll.waitForDone();
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LOG.debug( poll.getResponseContent() );
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String expected = "<ajax-response>\n" +
|
||||
"<response id='handler' destination='queue://test' >test two</response>\n" +
|
||||
"</ajax-response>\n";
|
||||
assertEquals( "Poll response is not correct.", expected, poll.getResponseContent() );
|
||||
|
||||
}
|
||||
|
||||
public void testMultipleAjaxClientsMayExistInTheSameSession() throws Exception {
|
||||
LOG.debug( "*** testMultipleAjaxClientsMayExistInTheSameSession ***" );
|
||||
|
||||
// send messages to queues testA and testB.
|
||||
MessageProducer producerA = session.createProducer(session.createQueue("testA"));
|
||||
MessageProducer producerB = session.createProducer(session.createQueue("testB"));
|
||||
producerA.send( session.createTextMessage("A1") );
|
||||
producerA.send( session.createTextMessage("A2") );
|
||||
producerB.send( session.createTextMessage("B1") );
|
||||
producerB.send( session.createTextMessage("B2") );
|
||||
|
||||
HttpClient httpClient = new HttpClient();
|
||||
httpClient.start();
|
||||
httpClient.setConnectorType(HttpClient.CONNECTOR_SELECT_CHANNEL);
|
||||
|
||||
// clientA subscribes to /queue/testA
|
||||
LOG.debug( "SENDING LISTEN" );
|
||||
AjaxTestContentExchange contentExchange = new AjaxTestContentExchange();
|
||||
contentExchange.setMethod( "POST" );
|
||||
contentExchange.setURL("http://localhost:8080/amq");
|
||||
contentExchange.setRequestContent( new ByteArrayBuffer(
|
||||
"destination=queue://testA&"+
|
||||
"type=listen&"+
|
||||
"message=handlerA&"+
|
||||
"clientId=clientA"
|
||||
) );
|
||||
contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
|
||||
httpClient.send(contentExchange);
|
||||
contentExchange.waitForDone();
|
||||
String jsessionid = contentExchange.getJsessionId();
|
||||
|
||||
// clientB subscribes to /queue/testB using the same JSESSIONID.
|
||||
contentExchange = new AjaxTestContentExchange();
|
||||
contentExchange.setMethod( "POST" );
|
||||
contentExchange.setURL("http://localhost:8080/amq");
|
||||
contentExchange.setRequestHeader( "Cookie", jsessionid );
|
||||
contentExchange.setRequestContent( new ByteArrayBuffer(
|
||||
"destination=queue://testB&"+
|
||||
"type=listen&"+
|
||||
"message=handlerB&"+
|
||||
"clientId=clientB"
|
||||
) );
|
||||
contentExchange.setRequestContentType( "application/x-www-form-urlencoded; charset=UTF-8" );
|
||||
httpClient.send(contentExchange);
|
||||
contentExchange.waitForDone();
|
||||
|
||||
// clientA polls for messages
|
||||
AjaxTestContentExchange poll = new AjaxTestContentExchange();
|
||||
poll.setMethod( "GET" );
|
||||
poll.setURL("http://localhost:8080/amq?timeout=5000&clientId=clientA");
|
||||
poll.setRequestHeader( "Cookie", jsessionid );
|
||||
httpClient.send( poll );
|
||||
poll.waitForDone();
|
||||
|
||||
LOG.debug( "clientA response : " + poll.getResponseContent() );
|
||||
String expected = "<ajax-response>\n" +
|
||||
"<response id='handlerA' destination='queue://testA' >A1</response>\n" +
|
||||
"<response id='handlerA' destination='queue://testA' >A2</response>\n" +
|
||||
"</ajax-response>\n";
|
||||
assertEquals( "Poll response is not correct.", expected, poll.getResponseContent() );
|
||||
|
||||
// clientB polls for messages
|
||||
poll = new AjaxTestContentExchange();
|
||||
poll.setMethod( "GET" );
|
||||
poll.setURL("http://localhost:8080/amq?timeout=5000&clientId=clientB");
|
||||
poll.setRequestHeader( "Cookie", jsessionid );
|
||||
httpClient.send( poll );
|
||||
poll.waitForDone();
|
||||
|
||||
LOG.debug( "clientB response : " + poll.getResponseContent() );
|
||||
expected = "<ajax-response>\n" +
|
||||
"<response id='handlerB' destination='queue://testB' >B1</response>\n" +
|
||||
"<response id='handlerB' destination='queue://testB' >B2</response>\n" +
|
||||
"</ajax-response>\n";
|
||||
assertEquals( "Poll response is not correct.", expected, poll.getResponseContent() );
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -51,6 +51,7 @@ public class JettyTestSupport extends TestCase {
|
|||
broker.setPersistent(false);
|
||||
broker.setUseJmx(true);
|
||||
broker.addConnector("tcp://localhost:61616");
|
||||
broker.addConnector("stomp://localhost:61613");
|
||||
broker.start();
|
||||
broker.waitUntilStarted();
|
||||
|
||||
|
|
|
|||
|
|
@ -66,12 +66,22 @@ public class AjaxListener implements MessageAvailableListener {
|
|||
if (continuation != null) {
|
||||
try {
|
||||
Message message = consumer.receive(10);
|
||||
continuation.setAttribute("message", message);
|
||||
continuation.setAttribute("consumer", consumer);
|
||||
LOG.debug( "message is " + message );
|
||||
if( message != null ) {
|
||||
if( continuation.isSuspended() ) {
|
||||
LOG.debug( "Resuming suspended continuation " + continuation );
|
||||
continuation.setAttribute("message", message);
|
||||
continuation.setAttribute("consumer", consumer);
|
||||
continuation.resume();
|
||||
} else {
|
||||
LOG.debug( "Message available, but continuation is already resumed. Buffer for next time." );
|
||||
bufferMessageForDelivery( message );
|
||||
}
|
||||
}
|
||||
} catch (Exception e) {
|
||||
LOG.error("Error receiving message " + e, e);
|
||||
}
|
||||
continuation.resume();
|
||||
|
||||
} else if (System.currentTimeMillis() - lastAccess > 2 * this.maximumReadTimeout) {
|
||||
new Thread() {
|
||||
public void run() {
|
||||
|
|
@ -81,12 +91,18 @@ public class AjaxListener implements MessageAvailableListener {
|
|||
} else {
|
||||
try {
|
||||
Message message = consumer.receive(10);
|
||||
if (message != null) {
|
||||
unconsumedMessages.addLast(message);
|
||||
}
|
||||
bufferMessageForDelivery( message );
|
||||
} catch (Exception e) {
|
||||
LOG.error("Error receiving message " + e, e);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public void bufferMessageForDelivery( Message message ) {
|
||||
if( message != null ) {
|
||||
synchronized( unconsumedMessages ) {
|
||||
unconsumedMessages.addLast(message);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -264,6 +264,8 @@ public class MessageListenerServlet extends MessageServletSupport {
|
|||
}
|
||||
|
||||
Message message = null;
|
||||
// this is non-null if we're resuming the continuation.
|
||||
// attributes set in AjaxListener
|
||||
message = (Message)request.getAttribute("message");
|
||||
|
||||
synchronized (client) {
|
||||
|
|
@ -310,6 +312,7 @@ public class MessageListenerServlet extends MessageServletSupport {
|
|||
|
||||
continuation.setTimeout(timeout);
|
||||
continuation.suspend();
|
||||
LOG.debug( "Suspending continuation " + continuation );
|
||||
|
||||
// Fetch the listeners
|
||||
AjaxListener listener = client.getListener();
|
||||
|
|
@ -347,13 +350,17 @@ public class MessageListenerServlet extends MessageServletSupport {
|
|||
|
||||
LinkedList<Message> unconsumedMessages = ((AjaxListener)consumer.getAvailableListener()).getUnconsumedMessages();
|
||||
LOG.debug("Send " + unconsumedMessages.size() + " unconsumed messages");
|
||||
for (Message msg : unconsumedMessages) {
|
||||
messages++;
|
||||
String id = consumerIdMap.get(consumer);
|
||||
String destinationName = consumerDestinationNameMap.get(consumer);
|
||||
writeMessageResponse(writer, msg, id, destinationName);
|
||||
if (messages >= maximumMessages) {
|
||||
break;
|
||||
synchronized( unconsumedMessages ) {
|
||||
for (Iterator<Message> it = unconsumedMessages.iterator(); it.hasNext(); ) {
|
||||
messages++;
|
||||
Message msg = it.next();
|
||||
String id = consumerIdMap.get(consumer);
|
||||
String destinationName = consumerDestinationNameMap.get(consumer);
|
||||
writeMessageResponse(writer, msg, id, destinationName);
|
||||
it.remove();
|
||||
if (messages >= maximumMessages) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue