/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.cli.impl.bootstrap;
import org.crsh.cli.impl.Delimiter;
import org.crsh.cli.impl.descriptor.HelpDescriptor;
import org.crsh.cli.impl.lang.CommandFactory;
import org.crsh.cli.impl.invocation.InvocationMatch;
import org.crsh.cli.impl.invocation.InvocationMatcher;
import org.crsh.cli.impl.lang.Instance;
import org.crsh.cli.impl.lang.ObjectCommandDescriptor;
import org.crsh.cli.impl.lang.Util;
import java.util.Iterator;
import java.util.ServiceLoader;
/** @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> */
public class Main {
public static void main(String[] args) throws Exception {
ServiceLoader<CommandProvider> loader = ServiceLoader.load(CommandProvider.class);
Iterator<CommandProvider> iterator = loader.iterator();
if (iterator.hasNext()) {
//
StringBuilder line = new StringBuilder();
for (int i = 0;i < args.length;i++) {
if (i > 0) {
line.append(' ');
}
Delimiter.EMPTY.escape(args[i], line);
}
//
CommandProvider commandProvider = iterator.next();
Class<?> commandClass = commandProvider.getCommandClass();
handle(commandClass, line.toString());
}
}
private static <T> void handle(Class<T> commandClass, String line) throws Exception {
ObjectCommandDescriptor<T> descriptor = CommandFactory.DEFAULT.create(commandClass);
HelpDescriptor<Instance<T>> helpDescriptor = HelpDescriptor.create(descriptor);
InvocationMatcher<Instance<T>> matcher = helpDescriptor.matcher();
InvocationMatch<Instance<T>> match = matcher.parse(line);
final T instance = commandClass.newInstance();
Object o = match.invoke(Util.wrap(instance));
if (o != null) {
System.out.println(o);
}
}
}