org.crsh.cmdline.matcher.impl.ParameterCompletion Maven / Gradle / Ivy
/*
* 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.cmdline.matcher.impl;
import org.crsh.cmdline.CommandCompletion;
import org.crsh.cmdline.Delimiter;
import org.crsh.cmdline.completers.EmptyCompleter;
import org.crsh.cmdline.ParameterDescriptor;
import org.crsh.cmdline.matcher.CmdCompletionException;
import org.crsh.cmdline.spi.Completer;
class ParameterCompletion extends org.crsh.cmdline.matcher.impl.Completion {
/** . */
private final String prefix;
/** . */
private final Delimiter delimiter;
/** . */
private final ParameterDescriptor parameter;
/** . */
private final Completer completer;
ParameterCompletion(String prefix, Delimiter delimiter, ParameterDescriptor parameter, Completer completer) {
this.prefix = prefix;
this.delimiter = delimiter;
this.parameter = parameter;
this.completer = completer;
}
CommandCompletion complete() throws CmdCompletionException {
Class completerType = parameter.getCompleterType();
Completer completer = this.completer;
// Use the most adapted completer
if (completerType != EmptyCompleter.class) {
try {
completer = completerType.newInstance();
}
catch (Exception e) {
throw new CmdCompletionException(e);
}
}
//
if (completer != null) {
try {
return new CommandCompletion(delimiter, completer.complete(parameter, prefix));
}
catch (Exception e) {
throw new CmdCompletionException(e);
}
} else {
return new CommandCompletion(delimiter, org.crsh.cmdline.spi.Completion.create());
}
}
}