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The core JMS Client implementation
/*
* 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.qpid.jms.provider.amqp;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.ANONYMOUS_RELAY;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.CONNECTION_OPEN_FAILED;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.DELAYED_DELIVERY;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.FAILOVER_SERVER_LIST;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.QUEUE_PREFIX;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.SHARED_SUBS;
import static org.apache.qpid.jms.provider.amqp.AmqpSupport.TOPIC_PREFIX;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.apache.qpid.jms.meta.JmsConnectionInfo;
import org.apache.qpid.proton.amqp.Symbol;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class used to examine the capabilities and connection properties of the
* remote connection and provide that information to the client code in a
* simpler and more easy to digest manner.
*/
public class AmqpConnectionProperties {
private static final Logger LOG = LoggerFactory.getLogger(AmqpConnectionProperties.class);
private final JmsConnectionInfo connectionInfo;
private final AmqpProvider provider;
private boolean delayedDeliverySupported = false;
private boolean anonymousRelaySupported = false;
private boolean sharedSubsSupported = false;
private boolean connectionOpenFailed = false;
private final List failoverServerList = new ArrayList<>();
/**
* Creates a new instance of this class with default values read from the
* given JmsConnectionInfo object.
*
* @param connectionInfo
* the JmsConnectionInfo object used to populate defaults.
* @param provider
* the provider instance associated with this object
*/
public AmqpConnectionProperties(JmsConnectionInfo connectionInfo, AmqpProvider provider) {
this.connectionInfo = connectionInfo;
this.provider = provider;
}
/**
* Configure the properties using values provided from the remote peer.
*
* @param capabilities
* the capabilities offered by the remote connection.
* @param properties
* the properties offered by the remote connection.
*/
public void initialize(Symbol[] capabilities, Map properties) {
if (capabilities != null) {
processCapabilities(capabilities);
}
if (properties != null) {
processProperties(properties);
}
}
protected void processCapabilities(Symbol[] capabilities) {
List list = Arrays.asList(capabilities);
if (list.contains(ANONYMOUS_RELAY)) {
anonymousRelaySupported = true;
}
if (list.contains(DELAYED_DELIVERY)) {
delayedDeliverySupported = true;
}
if (list.contains(SHARED_SUBS)) {
sharedSubsSupported = true;
}
}
@SuppressWarnings("unchecked")
protected void processProperties(Map properties) {
if (properties.containsKey(QUEUE_PREFIX)) {
Object o = properties.get(QUEUE_PREFIX);
if (o instanceof String) {
LOG.trace("Remote sent Queue prefix value of: {}", o);
connectionInfo.setQueuePrefix((String) o);
}
}
if (properties.containsKey(TOPIC_PREFIX)) {
Object o = properties.get(TOPIC_PREFIX);
if (o instanceof String) {
LOG.trace("Remote sent Topic prefix value of: {}", o);
connectionInfo.setTopicPrefix((String) o);
}
}
if (properties.containsKey(CONNECTION_OPEN_FAILED)) {
LOG.trace("Remote sent Connection Establishment Failed marker.");
connectionOpenFailed = true;
}
if (properties.containsKey(FAILOVER_SERVER_LIST)) {
LOG.trace("Remote sent Failover Server List.");
Object o = properties.get(FAILOVER_SERVER_LIST);
if (o instanceof List) {
for (Map redirection : (List>) o) {
try {
failoverServerList.add(new AmqpRedirect(redirection, provider).validate());
} catch (Exception ex) {
LOG.debug("Invalid redirection value given in failover server list: {}", ex.getMessage());
}
}
LOG.trace("Failover Server List: {}", failoverServerList);
}
}
}
/**
* Get any advertised failover server list details.
*
* @return return the advertised failover server list details, list is empty if no server list given.
*/
public List getFailoverServerList() {
return failoverServerList;
}
/**
* @return true if the connection supports shared subscriptions features.
*/
public boolean isSharedSubsSupported() {
return sharedSubsSupported;
}
/**
* Sets if the connection supports shared subscriptions features.
*
* @param sharedSubsSupported
* true if the shared subscriptions features are supported.
*/
public void setSharedSubsSupported(boolean sharedSubsSupported) {
this.sharedSubsSupported = sharedSubsSupported;
}
/**
* @return true if the connection supports sending message with delivery delays.
*/
public boolean isDelayedDeliverySupported() {
return delayedDeliverySupported;
}
/**
* Sets if the connection supports sending message with assigned delivery delays.
*
* @param deliveryDelaySupported
* true if the delivery delay features is supported.
*/
public void setDeliveryDelaySupported(boolean deliveryDelaySupported) {
this.delayedDeliverySupported = deliveryDelaySupported;
}
/**
* @return true if the connection supports sending to an anonymous relay.
*/
public boolean isAnonymousRelaySupported() {
return anonymousRelaySupported;
}
/**
* Sets if the connection supports sending to an anonymous relay link.
*
* @param anonymousRelaySupported
* true if anonymous relay link is supported.
*/
public void setAnonymousRelaySupported(boolean anonymousRelaySupported) {
this.anonymousRelaySupported = anonymousRelaySupported;
}
/**
* @return the prefix value used to decorate Queue address values.
*/
public String getQueuePrefix() {
return connectionInfo.getQueuePrefix();
}
/**
* Sets the prefix value used to decorate Queue address values.
*
* @param queuePrefix
* the current queue address prefix.
*/
public void setQueuePrefix(String queuePrefix) {
connectionInfo.setQueuePrefix(queuePrefix);
}
/**
* @return the prefix value used to decorate Topic address values.
*/
public String getTopicPrefix() {
return connectionInfo.getTopicPrefix();
}
/**
* Sets the prefix value used to decorate Topic address values.
*
* @param topicPrefix
* the current topic address prefix.
*/
public void setTopicPrefix(String topicPrefix) {
connectionInfo.setTopicPrefix(topicPrefix);
}
/**
* Returns true if the remote connection marked the open response as being in
* a failed state which implies that a close follows.
*
* @return the connectionOpenFailed value.
*/
public boolean isConnectionOpenFailed() {
return connectionOpenFailed;
}
/**
* Sets the state of the connection open failed flag. When this flag is set
* true it implies that the open response will have a close response to follow.
*
* @param connectionOpenFailed
* the connectionOpenFailed value to use for these properties.
*/
public void setConnectionOpenFailed(boolean connectionOpenFailed) {
this.connectionOpenFailed = connectionOpenFailed;
}
}