| /* |
| * Copyright (c) 2007, 2009, 2011, 2012, 2015 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.net4j.internal.jms.util; |
| |
| import org.eclipse.net4j.internal.jms.DestinationImpl; |
| import org.eclipse.net4j.internal.jms.QueueImpl; |
| import org.eclipse.net4j.internal.jms.TopicImpl; |
| import org.eclipse.net4j.jms.JMSProtocolConstants; |
| import org.eclipse.net4j.util.io.ExtendedDataInputStream; |
| import org.eclipse.net4j.util.io.ExtendedDataOutputStream; |
| |
| import javax.jms.Destination; |
| import javax.jms.JMSException; |
| import javax.jms.Queue; |
| import javax.jms.Topic; |
| |
| import java.io.IOException; |
| |
| public final class DestinationUtil |
| { |
| private DestinationUtil() |
| { |
| } |
| |
| public static byte getType(Destination destination) |
| { |
| if (destination instanceof Queue) |
| { |
| return JMSProtocolConstants.DESTINATION_TYPE_QUEUE; |
| } |
| |
| if (destination instanceof Topic) |
| { |
| return JMSProtocolConstants.DESTINATION_TYPE_TOPIC; |
| } |
| |
| if (destination == null) |
| { |
| return JMSProtocolConstants.DESTINATION_TYPE_NULL; |
| } |
| |
| throw new IllegalArgumentException("destination: " + destination); //$NON-NLS-1$ |
| } |
| |
| public static String getTypeName(byte type) |
| { |
| switch (type) |
| { |
| case JMSProtocolConstants.DESTINATION_TYPE_NULL: |
| return "NULL_DESTINATION"; //$NON-NLS-1$ |
| |
| case JMSProtocolConstants.DESTINATION_TYPE_QUEUE: |
| return "QUEUE_DESTINATION"; //$NON-NLS-1$ |
| |
| case JMSProtocolConstants.DESTINATION_TYPE_TOPIC: |
| return "TOPIC_DESTINATION"; //$NON-NLS-1$ |
| } |
| |
| throw new IllegalArgumentException("type: " + type); //$NON-NLS-1$ |
| } |
| |
| public static String getName(Destination destination) throws JMSException |
| { |
| byte type = getType(destination); |
| switch (type) |
| { |
| case JMSProtocolConstants.DESTINATION_TYPE_QUEUE: |
| return ((Queue)destination).getQueueName(); |
| |
| case JMSProtocolConstants.DESTINATION_TYPE_TOPIC: |
| return ((Topic)destination).getTopicName(); |
| } |
| |
| return null; |
| } |
| |
| public static DestinationImpl create(byte type, String name) |
| { |
| switch (type) |
| { |
| case JMSProtocolConstants.DESTINATION_TYPE_QUEUE: |
| return new QueueImpl(name); |
| |
| case JMSProtocolConstants.DESTINATION_TYPE_TOPIC: |
| return new TopicImpl(name); |
| } |
| |
| return null; |
| } |
| |
| public static DestinationImpl copy(Destination source) throws JMSException |
| { |
| byte type = getType(source); |
| switch (type) |
| { |
| case JMSProtocolConstants.DESTINATION_TYPE_QUEUE: |
| return new QueueImpl(((Queue)source).getQueueName()); |
| |
| case JMSProtocolConstants.DESTINATION_TYPE_TOPIC: |
| return new TopicImpl(((Topic)source).getTopicName()); |
| } |
| |
| return null; |
| } |
| |
| public static DestinationImpl convert(Destination source) throws JMSException |
| { |
| if (source instanceof DestinationImpl) |
| { |
| return (DestinationImpl)source; |
| } |
| |
| return copy(source); |
| } |
| |
| public static void write(ExtendedDataOutputStream out, DestinationImpl destination) throws IOException |
| { |
| byte type = getType(destination); |
| out.writeByte(type); |
| if (type != JMSProtocolConstants.DESTINATION_TYPE_NULL) |
| { |
| out.writeString(destination.getName()); |
| } |
| } |
| |
| public static DestinationImpl read(ExtendedDataInputStream in) throws IOException |
| { |
| byte type = in.readByte(); |
| String name = null; |
| if (type != JMSProtocolConstants.DESTINATION_TYPE_NULL) |
| { |
| name = in.readString(); |
| } |
| |
| return create(type, name); |
| } |
| } |