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FakeConsumer.java
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FakeConsumer.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.artemis.tests.unit.core.server.impl.fakes;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import org.apache.activemq.artemis.core.filter.Filter;
import org.apache.activemq.artemis.core.server.Consumer;
import org.apache.activemq.artemis.core.server.HandleStatus;
import org.apache.activemq.artemis.core.server.MessageReference;
public class FakeConsumer implements Consumer {
private HandleStatus statusToReturn = HandleStatus.HANDLED;
private HandleStatus newStatus;
private int delayCountdown = 0;
private final LinkedList<MessageReference> references = new LinkedList<>();
private final Filter filter;
public FakeConsumer() {
filter = null;
}
@Override
public void failed(Throwable t) {
// no op
}
public FakeConsumer(final Filter filter) {
this.filter = filter;
}
@Override
public Filter getFilter() {
return filter;
}
@Override
public String debug() {
return toString();
}
public synchronized MessageReference waitForNextReference(long timeout) {
while (references.isEmpty() && timeout > 0) {
long start = System.currentTimeMillis();
try {
wait();
} catch (InterruptedException e) {
}
timeout -= System.currentTimeMillis() - start;
}
if (timeout <= 0) {
throw new IllegalStateException("Timed out waiting for reference");
}
return references.removeFirst();
}
public synchronized void setStatusImmediate(final HandleStatus newStatus) {
statusToReturn = newStatus;
}
public synchronized void setStatusDelayed(final HandleStatus newStatus, final int numReferences) {
this.newStatus = newStatus;
delayCountdown = numReferences;
}
@Override
public long sequentialID() {
return 0;
}
public synchronized List<MessageReference> getReferences() {
return references;
}
public synchronized void clearReferences() {
references.clear();
}
@Override
public synchronized HandleStatus handle(final MessageReference reference) {
try {
if (statusToReturn == HandleStatus.BUSY) {
return HandleStatus.BUSY;
}
if (filter != null) {
if (filter.match(reference.getMessage())) {
references.addLast(reference);
reference.getQueue().referenceHandled(reference);
notify();
return HandleStatus.HANDLED;
} else {
return HandleStatus.NO_MATCH;
}
}
if (newStatus != null) {
if (delayCountdown == 0) {
statusToReturn = newStatus;
newStatus = null;
} else {
delayCountdown--;
}
}
if (statusToReturn == HandleStatus.HANDLED) {
reference.getQueue().referenceHandled(reference);
references.addLast(reference);
notify();
}
return statusToReturn;
} catch (Exception e) {
e.printStackTrace();
throw new IllegalStateException(e.getMessage(), e);
}
}
@Override
public void proceedDeliver(MessageReference ref) throws Exception {
// no op
}
@Override
public String toManagementString() {
return toString();
}
@Override
public void disconnect() {
//To change body of implemented methods use File | Settings | File Templates.
}
@Override
public List<MessageReference> getDeliveringMessages() {
return Collections.emptyList();
}
@Override
public String toString() {
if (filter != null) {
return filter + ", " + super.toString();
}
return super.toString();
}
}