Package org.apache.felix.sigil.common.runtime.io

Source Code of org.apache.felix.sigil.common.runtime.io.RefreshAction

/*
* 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.sigil.common.runtime.io;

import static org.apache.felix.sigil.common.runtime.io.Constants.REFRESH;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import org.osgi.framework.BundleException;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.launch.Framework;
import org.osgi.service.packageadmin.PackageAdmin;

public class RefreshAction extends Action<Void, Void>
{

    public RefreshAction(DataInputStream in, DataOutputStream out) throws IOException
    {
        super(in, out);
    }

    @Override
    public Void client(Void input) throws IOException, BundleException
    {
        writeInt(REFRESH);
        flush();
        if (checkOk())
        {
            return null;
        }
        else
        {
            String msg = readString();
            throw new BundleException(msg);
        }
    }

    @Override
    public void server(Framework fw) throws IOException
    {
        ServiceReference ref = fw.getBundleContext().getServiceReference(
            PackageAdmin.class.getName());
        if (ref != null)
        {
            PackageAdmin pa = (PackageAdmin) fw.getBundleContext().getService(ref);
            if (pa != null)
            {
                try
                {
                    pa.refreshPackages(null);
                }
                finally
                {
                    fw.getBundleContext().ungetService(ref);
                }
            }
        }
        writeOk();
        flush();
    }

}
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