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/*******************************************************************************
* Copyright (c) 2010, 2017 IBM Corporation, SAP AG.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Thomas Watson, IBM Corporation - initial API and implementation
* Lazar Kirchev, SAP AG - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.console.command.adapter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import org.apache.felix.service.command.CommandSession;
import org.eclipse.osgi.framework.console.CommandProvider;
/**
* This adapter class provides for execution of legacy Equinox commands from
* the Gogo shell. The commands are executed through the main method of the
* adapter. It finds the appropriate Equinox command and executes
* it with the proper argument.
*
*/
public class CommandProviderAdapter {
private final CommandProvider commandProvider;
private final Method[] commands;
public CommandProviderAdapter(CommandProvider commandProvider, Method[] commands) {
this.commandProvider = commandProvider;
this.commands = commands;
}
public Object main(CommandSession commandSession, Object[] args) throws Exception {
try {
// first argument is the command
Method command = findCommand("_" + args[0]);
ArrayList<Object> argList = new ArrayList<>();
for (int i = 1; i < args.length; i++)
argList.add(args[i]);
return command.invoke(commandProvider, new CustomCommandInterpreter(commandSession, argList));
} catch (InvocationTargetException e) {
if (e.getTargetException() instanceof Exception)
throw (Exception) e.getTargetException();
throw (Error) e.getTargetException();
}
}
private Method findCommand(Object commandName) {
for (Method command : commands) {
if (command.getName().equalsIgnoreCase(commandName.toString()))
return command;
}
throw new IllegalArgumentException("Cannot find the command method for: " + commandName);
}
// TODO Felix gogo seems to search for _main
public Object _main(CommandSession commandSession, Object[] args) throws Exception {
return main(commandSession, args);
}
}
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