package org.xmlBlaster.test.cluster;
import java.util.logging.Logger;
import org.xmlBlaster.util.Global;
// for client connections:
import org.xmlBlaster.util.*;
import org.xmlBlaster.client.I_Callback;
import org.xmlBlaster.client.key.PublishKey;
import org.xmlBlaster.client.key.SubscribeKey;
import org.xmlBlaster.client.key.UpdateKey;
import org.xmlBlaster.client.qos.PublishQos;
import org.xmlBlaster.client.qos.PublishReturnQos;
import org.xmlBlaster.client.qos.UpdateQos;
import org.xmlBlaster.client.qos.SubscribeQos;
import org.xmlBlaster.client.I_XmlBlasterAccess;
import org.xmlBlaster.util.MsgUnit;
import junit.framework.*;
/**
* Test publishing a message to frodo which forwards it to heron, the message
* is dirty read in fordo.
* <p />
* <pre>
* java -Djava.compiler= junit.textui.TestRunner -noloading org.xmlBlaster.test.cluster.DirtyReadTest
* </pre>
* NOTE: asserts() in update() methods are routed back to server and are not handled
* by the junit testsuite, so we check double (see code).
*
* @see <a href="http://www.xmlblaster.org/xmlBlaster/doc/requirements/cluster.dirtyRead.html" target="others">Cluster requirement</a>
*/
public class DirtyReadTest extends TestCase {
private String ME = "DirtyReadTest";
private Global glob;
private static Logger log = Logger.getLogger(DirtyReadTest.class.getName());
private ServerHelper serverHelper;
private I_XmlBlasterAccess heronCon, frodoCon;
private int updateCounterFrodo = 0;
private String contentStr = "Lets have another game.";
private String assertInUpdate = null;
public DirtyReadTest(String name) {
super(name);
this.glob = new Global(null, true, false);
}
/**
* Initialize the test ...
*/
protected void setUp() {
log.info("Entering setUp(), test starts");
assertInUpdate = null;
updateCounterFrodo = 0;
serverHelper = new ServerHelper(glob, log, ME);
serverHelper.startHeron();
serverHelper.startFrodo();
}
/**
* cleaning up ...
*/
protected void tearDown() {
log.info("Entering tearDown(), test is finished");
try { Thread.sleep(1000); } catch( InterruptedException i) {} // Wait some time
if (frodoCon != null) { frodoCon.disconnect(null); frodoCon = null; }
if (heronCon != null) { heronCon.disconnect(null); heronCon = null; }
serverHelper.tearDown();
}
public void testDirtyRead() {
runIt("RUGBY_NEWS"); // heron is master for RUGBY_NEWS and has dirtyRead allowed
}
public void testNoDirtyRead() {
runIt("SOCCER_NEWS"); // heron is master for SOCCER_NEWS WITHOUT dirty read!
}
/**
* We start all nodes as described in requirement
* <a href="http://www.xmlblaster.org/xmlBlaster/doc/requirements/cluster.html" target="others">cluster</a>
* publish a message to bilbo which should be routed to heron.
* Than we try to access the message at heron and check if heron has not
* updated one to frodo because of dirtyRead configured in heron.properties
*/
public void runIt(String domain) {
boolean isDirtyReadTest = domain.equals("RUGBY_NEWS");
ME = "DirtyReadTest domain=" + domain + ": ";
System.err.println("***DirtyReadTest: Publish a message to a cluster slave isDirtyReadTest=" + isDirtyReadTest + " ...");
final String oid = isDirtyReadTest ? "PublishToBilbo-DirtyRead" : "PublishToBilbo-NODirtyRead";
SubscribeKey sk;
SubscribeQos sq;
PublishKey pk;
PublishQos pq;
PublishReturnQos prq;
MsgUnit msgUnit;
try {
System.err.println(ME+"->Connect to frodo ...");
frodoCon = serverHelper.connect(serverHelper.getFrodoGlob(), new I_Callback() {
public String update(String cbSessionId, UpdateKey updateKey, byte[] content, UpdateQos updateQos) {
assertInUpdate = serverHelper.getFrodoGlob().getId() + ": Receive unexpected message '" + updateKey.getOid() + "'";
return "";
}
});
try { Thread.sleep(1000); } catch( InterruptedException i) {} // Wait some time
assertTrue(assertInUpdate, assertInUpdate == null);
System.err.println(ME+"->Subscribe '" + oid + "' from frodo ...");
sk = new SubscribeKey(glob, oid);
sk.setDomain(domain);
sq = new SubscribeQos(glob);
frodoCon.subscribe(sk.toXml(), sq.toXml(), new I_Callback() {
public String update(String cbSessionId, UpdateKey updateKey, byte[] content, UpdateQos updateQos) {
log.info("Reveiving asynchronous message '" + updateKey.getOid() + "' in " + oid + " handler");
updateCounterFrodo++;
assertInUpdate = null;
return "";
}
}); // subscribe with our specific update handler
try { Thread.sleep(1000); } catch( InterruptedException i) {} // Wait some time
assertTrue(assertInUpdate, assertInUpdate == null);
assertInUpdate = null;
System.err.println(ME+"->Check publish '" + oid + "', frodo should get it ...");
pk = new PublishKey(glob, oid, "text/plain", "1.0", domain);
pq = new PublishQos(glob);
msgUnit = new MsgUnit(pk, contentStr.getBytes(), pq);
prq = frodoCon.publish(msgUnit);
log.info("Published message of domain='" + pk.getDomain() + "' and content='" + contentStr +
"' to xmlBlaster node with IP=" + serverHelper.getFrodoGlob().getProperty().get("bootstrapPort",0) +
", the returned QoS is: " + prq.getKeyOid());
try { Thread.sleep(2000); } catch( InterruptedException i) {} // Wait some time
assertEquals("frodo has not received message", 1, updateCounterFrodo);
System.err.println("Query heron if he did not send any update message ...");
System.err.println("->Connect to heron ...");
heronCon = serverHelper.connect(serverHelper.getHeronGlob(), null);
String cmd = "__cmd:client/frodo/?sessionList";
System.err.println(ME+"->Find out the public session Id of slave frodo at heron with '" + cmd + "' ...");
MsgUnit[] msgs = heronCon.get("<key oid='" + cmd + "'/>", null);
assertEquals("Command failed", 1, msgs.length);
String pubSessionId = msgs[0].getContentStr();
// command = "__cmd:client/frodo/2/?numUpdate" : (the cluster slave loggs in usually with its glob.getId()
cmd = "__cmd:client/frodo/" + pubSessionId + "/?numUpdate";
System.err.println("->Query numUpdate with '" + cmd + "' ...");
msgs = heronCon.get("<key oid='" + cmd + "'/>", null);
assertEquals("Command failed", 1, msgs.length);
if (isDirtyReadTest) {
assertEquals("frodo has received updates from heron but should not because of dirty read",
"0", msgs[0].getContentStr());
log.info("Success, the update was a dirty read as heron did not send it!");
}
else {
assertEquals("frodo has not received updates from its master heron",
"1", msgs[0].getContentStr());
log.info("Success, the update was NO dirty read as heron did send it!");
}
System.err.println(ME+"Check if heron has got the message ...");
msgs = heronCon.get("<key oid='" + oid + "'/>", null);
assertEquals("The master never got the message", 1, msgs.length);
}
catch (XmlBlasterException e) {
e.printStackTrace();
fail("PublishToBilbo-DirtyRead-Exception: " + e.toString());
}
System.err.println("***DirtyReadTest: testDirtyRead [SUCCESS]");
}
}