org.jboss.as.cli.impl.CommaSeparatedCompleter Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.as.cli.impl;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.jboss.as.cli.CommandContext;
import org.jboss.as.cli.CommandLineCompleter;
/**
*
* @author Alexey Loubyansky
*/
public abstract class CommaSeparatedCompleter implements CommandLineCompleter {
/* (non-Javadoc)
* @see org.jboss.as.cli.CommandLineCompleter#complete(org.jboss.as.cli.CommandContext, java.lang.String, int, java.util.List)
*/
@Override
public int complete(CommandContext ctx, String buffer, int cursor, List candidates) {
final Collection all = getAllCandidates(ctx);
if (all.isEmpty()) {
return -1;
}
candidates.addAll(all);
if(buffer.isEmpty()) {
return 0;
}
final String[] specified = buffer.split(",+");
candidates.removeAll(Arrays.asList(specified));
if(buffer.charAt(buffer.length() - 1) == ',') {
return buffer.length();
}
final String chunk = specified[specified.length - 1];
final Iterator iterator = candidates.iterator();
while(iterator.hasNext()) {
if(!iterator.next().startsWith(chunk)) {
iterator.remove();
}
}
return buffer.length() - chunk.length();
}
protected abstract Collection getAllCandidates(CommandContext ctx);
}