shell/src/main/java/org/apache/felix/shell/impl/VersionCommandImpl.java

/* 
 * 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.felix.shell.impl;

import java.io.PrintStream;

import org.apache.felix.shell.Command;
import org.osgi.framework.BundleContext;
import org.osgi.framework.Constants;

public class VersionCommandImpl implements Command
{
    private BundleContext m_context = null;

    public VersionCommandImpl(BundleContext context)
    {
        m_context = context;
    }

    public String getName()
    {
        return "version";
    }

    public String getUsage()
    {
        return "version";
    }

    public String getShortDescription()
    {
        return "display version of framework.";
    }

    public void execute(String s, PrintStream out, PrintStream err)
    {
        out.println(m_context.getBundle(0).getHeaders().get(Constants.BUNDLE_VERSION));
    }
}