org.directwebremoting.jms.DwrConnectionMetaData Maven / Gradle / Ivy

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DWR is easy Ajax for Java. It makes it simple to call Java code directly from Javascript. It gets rid of almost all the boiler plate code between the web browser and your Java code.

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/*
 * Copyright 2005 Joe Walker
 *
 * 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.directwebremoting.jms;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;

import javax.jms.ConnectionMetaData;
import javax.jms.JMSException;

import org.directwebremoting.util.VersionUtil;

/**
 * An implementation of {@link ConnectionMetaData} that uses DWR meta-data.
 * @author Joe Walker [joe at getahead dot ltd dot uk]
 */
public class DwrConnectionMetaData implements ConnectionMetaData
{
	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getJMSMajorVersion()
	 */
	public int getJMSMajorVersion() throws JMSException
	{
		return 1;
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getJMSMinorVersion()
	 */
	public int getJMSMinorVersion() throws JMSException
	{
		return 1;
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getJMSProviderName()
	 */
	public String getJMSProviderName() throws JMSException
	{
		return "DWR";
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getJMSVersion()
	 */
	public String getJMSVersion() throws JMSException
	{
		return "1.1";
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getJMSXPropertyNames()
	 */
	public Enumeration getJMSXPropertyNames() throws JMSException
	{
		return Collections.enumeration(properties);
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getProviderMajorVersion()
	 */
	public int getProviderMajorVersion() throws JMSException
	{
        String version = getProviderVersion();
        String[] strings = version.split("\\.");
        return Integer.parseInt(strings[0]);
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getProviderMinorVersion()
	 */
	public int getProviderMinorVersion() throws JMSException
	{
        String version = getProviderVersion();
        String[] strings = version.split("\\.");
        return Integer.parseInt(strings[1]);
	}

	/* (non-Javadoc)
	 * @see javax.jms.ConnectionMetaData#getProviderVersion()
	 */
	public String getProviderVersion() throws JMSException
	{
		return VersionUtil.getLabel();
	}

	private Collection properties = new ArrayList();
}