/*
* 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.servicemix.kernel.gshell.core;
import java.util.Iterator;
import java.util.List;
import org.apache.geronimo.gshell.clp.Argument;
import org.apache.geronimo.gshell.command.CommandAction;
import org.apache.geronimo.gshell.command.CommandContext;
import org.apache.geronimo.gshell.command.CommandResult;
import org.apache.geronimo.gshell.command.Variables;
import org.apache.geronimo.gshell.commandline.CommandLineExecutor;
import org.apache.geronimo.gshell.io.IO;
import org.apache.geronimo.gshell.shell.Shell;
import org.apache.geronimo.gshell.shell.ShellContext;
import org.apache.geronimo.gshell.shell.ShellContextHolder;
import org.apache.geronimo.gshell.wisdom.command.AliasCommand;
public class WorkAroundAliasCommand extends AliasCommand {
private final CommandLineExecutor executor;
public WorkAroundAliasCommand(CommandLineExecutor executor) {
super(executor);
this.executor = executor;
setAction(new AliasCommandAction());
}
@Override
protected void prepareAction(final ShellContext context, final Object[] args) {
// HACK: Reset state for proper appendArgs muck
assert context != null;
assert args != null;
setAction(new AliasCommandAction());
log.trace("Preparing action");
IO io = context.getIo();
CommandAction action = getAction();
// Setup the command action
try {
// Process command line options/arguments
processArguments(io, action, args);
}
catch (Exception e) {
// Abort if preparation caused a failure
throw new AbortExecutionNotification(new CommandResult.FailureResult(e));
}
}
private class AliasCommandAction
implements CommandAction
{
@Argument
private List<String> appendArgs = null;
public Object execute(final CommandContext context) throws Exception {
assert context != null;
StringBuilder buff = new StringBuilder();
buff.append(getAlias());
// If we have args to append, then do it
if (appendArgs != null && !appendArgs.isEmpty()) {
buff.append(" ");
// Append args quoted as they have already been processed by the parser
Iterator iter = appendArgs.iterator();
while (iter.hasNext()) {
//
// HACK: Using double quote instead of single quote for now as the parser's handling of single quote is broken
//
buff.append('"').append(iter.next()).append('"');
if (iter.hasNext()) {
buff.append(" ");
}
}
}
log.debug("Executing alias: {}", buff);
final Shell shell = ShellContextHolder.get().getShell();
ShellContext shellContext = new ShellContext() {
public Shell getShell() {
return shell;
}
public IO getIo() {
return context.getIo();
}
public Variables getVariables() {
return context.getVariables();
}
};
Object result = executor.execute(shellContext, buff.toString());
log.debug("Alias result: {}", result);
return result;
}
}
}