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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.cxf.ws.rm;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.endpoint.Endpoint;
import org.apache.cxf.helpers.CastUtils;
import org.apache.cxf.message.Exchange;
import org.apache.cxf.message.Message;
import org.apache.cxf.message.MessageImpl;
import org.apache.cxf.message.MessageUtils;
import org.apache.cxf.transport.Conduit;
import org.apache.cxf.ws.addressing.AddressingProperties;
import org.apache.cxf.ws.rm.persistence.RMStore;
import org.apache.cxf.ws.rm.v200702.AckRequestedType;
import org.apache.cxf.ws.rm.v200702.Identifier;
import org.apache.cxf.ws.rm.v200702.SequenceType;
public class Destination extends AbstractEndpoint {
private static final Logger LOG = LogUtils.getL7dLogger(Destination.class);
private Map map;
Destination(RMEndpoint reliableEndpoint) {
super(reliableEndpoint);
map = new ConcurrentHashMap();
}
public DestinationSequence getSequence(Identifier id) {
return map.get(id.getValue());
}
public Collection getAllSequences() {
return CastUtils.cast(map.values());
}
public void addSequence(DestinationSequence seq) {
addSequence(seq, true);
}
public void addSequence(DestinationSequence seq, boolean persist) {
seq.setDestination(this);
map.put(seq.getIdentifier().getValue(), seq);
if (persist) {
RMStore store = getReliableEndpoint().getManager().getStore();
if (null != store) {
store.createDestinationSequence(seq);
}
}
processingSequenceCount.incrementAndGet();
}
public void removeSequence(DestinationSequence seq) {
DestinationSequence o;
o = map.remove(seq.getIdentifier().getValue());
RMStore store = getReliableEndpoint().getManager().getStore();
if (null != store) {
store.removeDestinationSequence(seq.getIdentifier());
}
if (o != null) {
processingSequenceCount.decrementAndGet();
completedSequenceCount.incrementAndGet();
}
}
/**
* Acknowledges receipt of a message. If the message is the last in the
* sequence, sends an out-of-band SequenceAcknowledgement unless there a
* response will be sent to the acksTo address onto which the acknowldegment
* can be piggybacked.
*
* @param sequenceType the sequenceType object that includes identifier and
* message number (and possibly a lastMessage element) for the
* message to be acknowledged)
* @param replyToAddress the replyTo address of the message that carried
* this sequence information
* @throws SequenceFault if the sequence specified in
* sequenceType does not exist
*/
public void acknowledge(Message message) throws SequenceFault, RMException {
RMProperties rmps = RMContextUtils.retrieveRMProperties(message, false);
SequenceType sequenceType = rmps.getSequence();
if (null == sequenceType) {
return;
}
DestinationSequence seq = getSequence(sequenceType.getIdentifier());
if (null != seq) {
if (seq.applyDeliveryAssurance(sequenceType.getMessageNumber(), message)) {
if (MessageUtils.isTrue(message.get(RMMessageConstants.DELIVERING_ROBUST_ONEWAY))) {
return;
}
seq.acknowledge(message);
if (null != rmps.getCloseSequence()) {
seq.setLastMessageNumber(sequenceType.getMessageNumber());
ackImmediately(seq, message);
}
} else {
try {
message.getInterceptorChain().abort();
Conduit conduit = message.getExchange().getDestination()
.getBackChannel(message, null, null);
if (conduit != null) {
//for a one-way, the back channel could be
//null if it knows it cannot send anything.
Message partial = createMessage(message.getExchange());
partial.remove(Message.CONTENT_TYPE);
partial.setExchange(message.getExchange());
conduit.prepare(partial);
conduit.close(partial);
}
} catch (IOException e) {
LOG.log(Level.SEVERE, e.getMessage());
throw new RMException(e);
}
}
} else {
ProtocolVariation protocol = RMContextUtils.getProtocolVariation(message);
RMConstants consts = protocol.getConstants();
SequenceFaultFactory sff = new SequenceFaultFactory(consts);
throw sff.createUnknownSequenceFault(sequenceType.getIdentifier());
}
}
void ackRequested(Message message) throws SequenceFault, RMException {
// TODO
Collection ars = RMContextUtils.retrieveRMProperties(message, false)
.getAcksRequested();
if (null == ars) {
return;
}
for (AckRequestedType ar : ars) {
Identifier id = ar.getIdentifier();
DestinationSequence seq = getSequence(id);
if (null == seq) {
continue;
}
ackImmediately(seq, message);
}
}
void ackImmediately(DestinationSequence seq, Message message) throws RMException {
seq.scheduleImmediateAcknowledgement();
// if we cannot expect an outgoing message to which the
// acknowledgement
// can be added we need to send an out-of-band
// SequenceAcknowledgement message
AddressingProperties maps = RMContextUtils.retrieveMAPs(message, false, false);
String replyToAddress = null;
if (null != maps.getReplyTo()) {
replyToAddress = maps.getReplyTo().getAddress().getValue();
}
if (!(seq.getAcksTo().getAddress().getValue().equals(replyToAddress) || seq
.canPiggybackAckOnPartialResponse())) {
getReliableEndpoint().getProxy().acknowledge(seq);
}
}
void processingComplete(Message message) {
SequenceType sequenceType = RMContextUtils.retrieveRMProperties(message, false).getSequence();
if (null == sequenceType) {
return;
}
DestinationSequence seq = getSequence(sequenceType.getIdentifier());
if (null != seq) {
long mn = sequenceType.getMessageNumber().longValue();
seq.processingComplete(mn);
seq.purgeAcknowledged(mn);
}
}
void releaseDeliveringStatus(Message message) {
RMProperties rmps = RMContextUtils.retrieveRMProperties(message, false);
SequenceType sequenceType = rmps.getSequence();
if (null != sequenceType) {
DestinationSequence seq = getSequence(sequenceType.getIdentifier());
if (null != seq) {
seq.removeDeliveringMessageNumber(sequenceType.getMessageNumber());
}
}
}
private static Message createMessage(Exchange exchange) {
Endpoint ep = exchange.get(Endpoint.class);
Message msg = null;
if (ep != null) {
msg = new MessageImpl();
msg.setExchange(exchange);
msg = ep.getBinding().createMessage(msg);
}
return msg;
}
}