org.springframework.jms.support.destination.JmsDestinationAccessor Maven / Gradle / Ivy
/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.jms.support.destination;
import jakarta.jms.Destination;
import jakarta.jms.JMSException;
import jakarta.jms.Message;
import jakarta.jms.MessageConsumer;
import jakarta.jms.Session;
import org.springframework.jms.support.JmsAccessor;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
/**
* Base class for {@link org.springframework.jms.core.JmsTemplate} and other
* JMS-accessing gateway helpers, adding destination-related properties to
* {@link JmsAccessor JmsAccessor's} common properties.
*
* Not intended to be used directly.
* See {@link org.springframework.jms.core.JmsTemplate}.
*
* @author Juergen Hoeller
* @since 1.2.5
* @see org.springframework.jms.support.JmsAccessor
* @see org.springframework.jms.core.JmsTemplate
*/
public abstract class JmsDestinationAccessor extends JmsAccessor {
/**
* Timeout value indicating that a receive operation should
* check if a message is immediately available without blocking.
* @since 4.3
*/
public static final long RECEIVE_TIMEOUT_NO_WAIT = -1;
/**
* Timeout value indicating a blocking receive without timeout.
* @since 4.3
*/
public static final long RECEIVE_TIMEOUT_INDEFINITE_WAIT = 0;
private DestinationResolver destinationResolver = new DynamicDestinationResolver();
private boolean pubSubDomain = false;
/**
* Set the {@link DestinationResolver} that is to be used to resolve
* {@link jakarta.jms.Destination} references for this accessor.
*
The default resolver is a DynamicDestinationResolver. Specify a
* JndiDestinationResolver for resolving destination names as JNDI locations.
* @see org.springframework.jms.support.destination.DynamicDestinationResolver
* @see org.springframework.jms.support.destination.JndiDestinationResolver
*/
public void setDestinationResolver(DestinationResolver destinationResolver) {
Assert.notNull(destinationResolver, "'destinationResolver' must not be null");
this.destinationResolver = destinationResolver;
}
/**
* Return the DestinationResolver for this accessor (never {@code null}).
*/
public DestinationResolver getDestinationResolver() {
return this.destinationResolver;
}
/**
* Configure the destination accessor with knowledge of the JMS domain used.
* Default is Point-to-Point (Queues).
*
This setting primarily indicates what type of destination to resolve
* if dynamic destinations are enabled.
* @param pubSubDomain "true" for the Publish/Subscribe domain ({@link jakarta.jms.Topic Topics}),
* "false" for the Point-to-Point domain ({@link jakarta.jms.Queue Queues})
* @see #setDestinationResolver
*/
public void setPubSubDomain(boolean pubSubDomain) {
this.pubSubDomain = pubSubDomain;
}
/**
* Return whether the Publish/Subscribe domain ({@link jakarta.jms.Topic Topics}) is used.
* Otherwise, the Point-to-Point domain ({@link jakarta.jms.Queue Queues}) is used.
*/
public boolean isPubSubDomain() {
return this.pubSubDomain;
}
/**
* Resolve the given destination name into a JMS {@link Destination},
* via this accessor's {@link DestinationResolver}.
* @param session the current JMS {@link Session}
* @param destinationName the name of the destination
* @return the located {@link Destination}
* @throws jakarta.jms.JMSException if resolution failed
* @see #setDestinationResolver
*/
protected Destination resolveDestinationName(Session session, String destinationName) throws JMSException {
return getDestinationResolver().resolveDestinationName(session, destinationName, isPubSubDomain());
}
/**
* Actually receive a message from the given consumer.
* @param consumer the JMS MessageConsumer to receive with
* @param timeout the receive timeout (a negative value indicates
* a no-wait receive; 0 indicates an indefinite wait attempt)
* @return the JMS Message received, or {@code null} if none
* @throws JMSException if thrown by JMS API methods
* @since 4.3
* @see #RECEIVE_TIMEOUT_NO_WAIT
* @see #RECEIVE_TIMEOUT_INDEFINITE_WAIT
*/
@Nullable
protected Message receiveFromConsumer(MessageConsumer consumer, long timeout) throws JMSException {
if (timeout > 0) {
return consumer.receive(timeout);
}
else if (timeout < 0) {
return consumer.receiveNoWait();
}
else {
return consumer.receive();
}
}
}