/*
* 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.batch.impl;
import java.util.ArrayList;
import java.util.List;
import org.jboss.as.cli.batch.Batch;
import org.jboss.as.cli.batch.BatchedCommand;
/**
*
* @author Alexey Loubyansky
*/
public class DefaultBatch implements Batch {
private final List<BatchedCommand> commands = new ArrayList<BatchedCommand>();
/* (non-Javadoc)
* @see org.jboss.as.cli.batch.Batch#getCommands()
*/
@Override
public List<BatchedCommand> getCommands() {
return commands;
}
@Override
public void add(BatchedCommand cmd) {
if(cmd == null) {
throw new IllegalArgumentException("Null argument.");
}
commands.add(cmd);
}
@Override
public void clear() {
commands.clear();
}
@Override
public void remove(int lineNumber) {
ensureRange(lineNumber);
commands.remove(lineNumber);
}
@Override
public void set(int index, BatchedCommand cmd) {
ensureRange(index);
commands.set(index, cmd);
}
protected void ensureRange(int lineNumber) {
if(lineNumber < 0 || lineNumber > commands.size() - 1) {
throw new IndexOutOfBoundsException(lineNumber + " isn't in range [0.." + (commands.size() - 1) + "]");
}
}
@Override
public int size() {
return commands.size();
}
@Override
public void move(int currentIndex, int newIndex) {
ensureRange(currentIndex);
ensureRange(newIndex);
if(currentIndex == newIndex) {
return;
}
BatchedCommand cmd = commands.get(currentIndex);
int step = newIndex > currentIndex ? 1 : -1;
for(int i = currentIndex; i != newIndex; i += step) {
commands.set(i, commands.get(i + step));
}
commands.set(newIndex, cmd);
}
}