/*
* 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 java.util.StringTokenizer;
import org.apache.felix.shell.Command;
import org.osgi.framework.*;
import org.osgi.service.startlevel.StartLevel;
public class BundleLevelCommandImpl implements Command
{
private static final String INITIAL_LEVEL_SWITCH = "-i";
private BundleContext m_context = null;
public BundleLevelCommandImpl(BundleContext context)
{
m_context = context;
}
public String getName()
{
return "bundlelevel";
}
public String getUsage()
{
return "bundlelevel <level> <id> ... | <id> | -i <level>";
}
public String getShortDescription()
{
return "set/get bundle start level or set initial bundle start level.";
}
public void execute(String s, PrintStream out, PrintStream err)
{
// Get start level service.
ServiceReference ref = m_context.getServiceReference(
org.osgi.service.startlevel.StartLevel.class.getName());
if (ref == null)
{
out.println("StartLevel service is unavailable.");
return;
}
StartLevel sl = (StartLevel) m_context.getService(ref);
if (sl == null)
{
out.println("StartLevel service is unavailable.");
return;
}
// Parse command line.
StringTokenizer st = new StringTokenizer(s, " ");
// Ignore the command name.
st.nextToken();
// If there is only one token, then assume it is
// a bundle ID for which we must retrieve the bundle
// level.
if (st.countTokens() == 1)
{
// Get the bundle and display start level.
Bundle bundle = null;
String token = null;
try
{
token = st.nextToken();
long id = Long.parseLong(token);
bundle = m_context.getBundle(id);
if (bundle != null)
{
out.println("Bundle " + token + " is level "
+ sl.getBundleStartLevel(bundle));
}
else
{
err.println("Bundle ID " + token + " is invalid.");
}
}
catch (NumberFormatException ex)
{
err.println("Unable to parse integer '" + token + "'.");
}
catch (Exception ex)
{
err.println(ex.toString());
}
}
// If there is more than one token, assume the first
// token is the new start level and the remaining
// tokens are the bundle IDs whose start levels should
// be changed.
else if (st.countTokens() > 1)
{
// Get the bundle.
Bundle bundle = null;
String token = null;
int startLevel = -1;
token = st.nextToken().trim();
// If next token is the initial level switch,
// then set it.
if (token.equals(INITIAL_LEVEL_SWITCH))
{
if (st.countTokens() == 1)
{
try
{
token = st.nextToken().trim();
startLevel = Integer.parseInt(token);
sl.setInitialBundleStartLevel(startLevel);
}
catch (NumberFormatException ex)
{
err.println("Unable to parse start level '" + token + "'.");
}
}
else
{
err.println("Incorrect number of arguments.");
}
}
// Otherwise, set the start level for the specified bundles.
else
{
try
{
startLevel = Integer.parseInt(token);
}
catch (NumberFormatException ex)
{
err.println("Unable to parse start level '" + token + "'.");
}
// Ignore invalid start levels.
if (startLevel > 0)
{
// Set the start level for each specified bundle.
while (st.hasMoreTokens())
{
try
{
token = st.nextToken();
long id = Long.parseLong(token);
bundle = m_context.getBundle(id);
if (bundle != null)
{
sl.setBundleStartLevel(bundle, startLevel);
}
else
{
err.println("Bundle ID '" + token + "' is invalid.");
}
}
catch (NumberFormatException ex)
{
err.println("Unable to parse bundle ID '" + token + "'.");
}
catch (Exception ex)
{
err.println(ex.toString());
}
}
}
else
{
err.println("Invalid start level.");
}
}
}
else
{
err.println("Incorrect number of arguments.");
}
}
}