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/*
* 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
*
* 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.springframework.amqp.core;
import java.util.Map;
import org.springframework.util.Assert;
/**
* Simple container collecting information to describe a queue. Used in conjunction with AmqpAdmin.
*
* @author Mark Pollack
* @author Gary Russell
* @see AmqpAdmin
*/
public class Queue extends AbstractDeclarable {
private final String name;
private final boolean durable;
private final boolean exclusive;
private final boolean autoDelete;
private final java.util.Map arguments;
/**
* The queue is durable, non-exclusive and non auto-delete.
*
* @param name the name of the queue.
*/
public Queue(String name) {
this(name, true, false, false);
}
/**
* Construct a new queue, given a name and durability flag. The queue is non-exclusive and non auto-delete.
*
* @param name the name of the queue.
* @param durable true if we are declaring a durable queue (the queue will survive a server restart)
*/
public Queue(String name, boolean durable) {
this(name, durable, false, false, null);
}
/**
* Construct a new queue, given a name, durability, exclusive and auto-delete flags.
* @param name the name of the queue.
* @param durable true if we are declaring a durable queue (the queue will survive a server restart)
* @param exclusive true if we are declaring an exclusive queue (the queue will only be used by the declarer's
* connection)
* @param autoDelete true if the server should delete the queue when it is no longer in use
*/
public Queue(String name, boolean durable, boolean exclusive, boolean autoDelete) {
this(name, durable, exclusive, autoDelete, null);
}
/**
* Construct a new queue, given a name, durability flag, and auto-delete flag, and arguments.
* @param name the name of the queue - must not be null; set to "" to have the broker generate the name.
* @param durable true if we are declaring a durable queue (the queue will survive a server restart)
* @param exclusive true if we are declaring an exclusive queue (the queue will only be used by the declarer's
* connection)
* @param autoDelete true if the server should delete the queue when it is no longer in use
* @param arguments the arguments used to declare the queue
*/
public Queue(String name, boolean durable, boolean exclusive, boolean autoDelete, Map arguments) {
Assert.notNull(name, "'name' cannot be null");
this.name = name;
this.durable = durable;
this.exclusive = exclusive;
this.autoDelete = autoDelete;
this.arguments = arguments;
}
public String getName() {
return this.name;
}
/**
* A durable queue will survive a server restart.
*
* @return true if durable.
*/
public boolean isDurable() {
return this.durable;
}
/**
* True if the server should only send messages to the declarer's connection.
*
* @return true if exclusive.
*/
public boolean isExclusive() {
return this.exclusive;
}
/**
* True if the server should delete the queue when it is no longer in use (the last consumer is cancelled). A queue
* that never has any consumers will not be deleted automatically.
*
* @return true if auto-delete.
*/
public boolean isAutoDelete() {
return this.autoDelete;
}
public java.util.Map getArguments() {
return this.arguments;
}
@Override
public String toString() {
return "Queue [name=" + this.name + ", durable=" + this.durable + ", autoDelete=" + this.autoDelete
+ ", exclusive=" + this.exclusive + ", arguments=" + this.arguments + "]";
}
}