/*
* $Id$
*
* 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.struts2.osgi.admin.actions;
import java.io.ByteArrayOutputStream;
import java.io.PrintStream;
import org.apache.struts2.osgi.DefaultBundleAccessor;
import org.apache.felix.shell.ShellService;
import org.osgi.framework.ServiceReference;
import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionSupport;
/**
* This action executes commands on the Felix Shell
*/
public class ShellAction extends ActionSupport {
private String command;
private String output;
public String execute() {
// get service
ByteArrayOutputStream outByteStream = new ByteArrayOutputStream();
ByteArrayOutputStream errByteStream = new ByteArrayOutputStream();
PrintStream outStream = new PrintStream(outByteStream);
PrintStream errStream = new PrintStream(errByteStream);
String outString = null;
String errString = null;
try {
executeCommand(command, outStream, errStream);
outString = outByteStream.toString().trim();
errString = errByteStream.toString().trim();
} catch (Exception e) {
errString = e.getMessage();
} finally {
outStream.close();
errStream.close();
}
output = errString != null && errString.length() > 0 ? errString : outString;
return Action.SUCCESS;
}
public String getCommand() {
return command;
}
public void setCommand(String command) {
this.command = command;
}
public String getOutput() {
return output;
}
public void executeCommand(String commandLine, PrintStream out, PrintStream err) throws Exception {
ShellService shellService = getShellService();
if (shellService != null)
shellService.executeCommand(commandLine, out, err);
else
err.println("Apache Felix Shell service is not installed");
}
private ShellService getShellService() {
//bundle can be de-activated, so keeping a reference aorund is not a good idea
DefaultBundleAccessor bundleAcessor = DefaultBundleAccessor.getInstance();
ServiceReference ref = bundleAcessor.getServiceReference(ShellService.class.getName());
return (ShellService) bundleAcessor.getService(ref);
}
}