mirror of https://github.com/apache/activemq.git
Ensure that connections are returned when created and then handed out as FIFO after that.
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@ -17,6 +17,7 @@
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package org.apache.activemq.jms.pool;
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package org.apache.activemq.jms.pool;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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import javax.jms.Connection;
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import javax.jms.Connection;
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import javax.jms.ConnectionFactory;
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import javax.jms.ConnectionFactory;
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@ -73,6 +74,9 @@ public class PooledConnectionFactory implements ConnectionFactory {
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private boolean createConnectionOnStartup = true;
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private boolean createConnectionOnStartup = true;
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private boolean useAnonymousProducers = true;
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private boolean useAnonymousProducers = true;
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// Temporary value used to always fetch the result of makeObject.
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private final AtomicReference<ConnectionPool> mostRecentlyCreated = new AtomicReference<ConnectionPool>(null);
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public void initConnectionsPool() {
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public void initConnectionsPool() {
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if (this.connectionsPool == null) {
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if (this.connectionsPool == null) {
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this.connectionsPool = new GenericKeyedObjectPool<ConnectionKey, ConnectionPool>(
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this.connectionsPool = new GenericKeyedObjectPool<ConnectionKey, ConnectionPool>(
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@ -112,6 +116,8 @@ public class PooledConnectionFactory implements ConnectionFactory {
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LOG.trace("Created new connection: {}", connection);
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LOG.trace("Created new connection: {}", connection);
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}
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}
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PooledConnectionFactory.this.mostRecentlyCreated.set(connection);
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return connection;
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return connection;
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}
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}
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@ -135,6 +141,7 @@ public class PooledConnectionFactory implements ConnectionFactory {
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// Set max idle (not max active) since our connections always idle in the pool.
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// Set max idle (not max active) since our connections always idle in the pool.
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this.connectionsPool.setMaxIdle(1);
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this.connectionsPool.setMaxIdle(1);
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this.connectionsPool.setLifo(false);
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// We always want our validate method to control when idle objects are evicted.
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// We always want our validate method to control when idle objects are evicted.
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this.connectionsPool.setTestOnBorrow(true);
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this.connectionsPool.setTestOnBorrow(true);
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@ -195,19 +202,14 @@ public class PooledConnectionFactory implements ConnectionFactory {
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// will create a new one to meet the demand.
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// will create a new one to meet the demand.
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if (getConnectionsPool().getNumIdle(key) < getMaxConnections()) {
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if (getConnectionsPool().getNumIdle(key) < getMaxConnections()) {
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try {
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try {
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// we want borrowObject to return the one we added.
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connectionsPool.setLifo(true);
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connectionsPool.addObject(key);
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connectionsPool.addObject(key);
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connection = mostRecentlyCreated.getAndSet(null);
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connection.incrementReferenceCount();
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} catch (Exception e) {
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} catch (Exception e) {
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throw createJmsException("Error while attempting to add new Connection to the pool", e);
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throw createJmsException("Error while attempting to add new Connection to the pool", e);
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}
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}
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} else {
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} else {
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// now we want the oldest one in the pool.
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connectionsPool.setLifo(false);
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}
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try {
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try {
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// We can race against other threads returning the connection when there is an
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// We can race against other threads returning the connection when there is an
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// expiration or idle timeout. We keep pulling out ConnectionPool instances until
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// expiration or idle timeout. We keep pulling out ConnectionPool instances until
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// we win and get a non-closed instance and then increment the reference count
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// we win and get a non-closed instance and then increment the reference count
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@ -235,6 +237,7 @@ public class PooledConnectionFactory implements ConnectionFactory {
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} catch (Exception e) {
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} catch (Exception e) {
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throw createJmsException("Error when returning connection to the pool", e);
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throw createJmsException("Error when returning connection to the pool", e);
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}
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}
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}
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return newPooledConnection(connection);
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return newPooledConnection(connection);
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}
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}
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@ -40,7 +40,6 @@ import org.apache.activemq.broker.BrokerService;
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import org.apache.activemq.command.ConnectionId;
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import org.apache.activemq.command.ConnectionId;
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import org.apache.activemq.util.Wait;
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import org.apache.activemq.util.Wait;
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import org.apache.log4j.Logger;
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import org.apache.log4j.Logger;
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import org.junit.Ignore;
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import org.junit.Test;
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import org.junit.Test;
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/**
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/**
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@ -197,7 +196,6 @@ public class PooledConnectionFactoryTest {
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doTestConcurrentCreateGetsUniqueConnection(false);
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doTestConcurrentCreateGetsUniqueConnection(false);
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}
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}
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@Ignore("something up - don't know why the start call to createConnection does not cause close - but that does not fix it either!")
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@Test
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@Test
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public void testConcurrentCreateGetsUniqueConnectionCreateOnStart() throws Exception {
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public void testConcurrentCreateGetsUniqueConnectionCreateOnStart() throws Exception {
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doTestConcurrentCreateGetsUniqueConnection(true);
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doTestConcurrentCreateGetsUniqueConnection(true);
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