org.jboss.as.cli.handlers.ifelse.ModelNodePathOperand Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.handlers.ifelse;
import org.jboss.as.cli.CommandContext;
import org.jboss.as.cli.CommandFormatException;
import org.jboss.as.cli.CommandLineException;
import org.jboss.dmr.ModelNode;
/**
*
* @author Alexey Loubyansky
*/
public class ModelNodePathOperand implements Operand {
private final String[] path;
public ModelNodePathOperand(String pathStr) throws CommandFormatException {
if(pathStr == null) {
throw new IllegalArgumentException("path is null.");
}
path = pathStr.split("\\.");
if(path.length == 0) {
throw new CommandFormatException("The path in the if condition is empty: '" + pathStr + "'");
}
}
/* (non-Javadoc)
* @see org.jboss.as.cli.handlers.ifelse.Operand#resolveValue(org.jboss.as.cli.CommandContext, org.jboss.dmr.ModelNode)
*/
@Override
public Object resolveValue(CommandContext ctx, ModelNode response) throws CommandLineException {
ModelNode targetValue = response;
for(String name : path) {
if(!targetValue.hasDefined(name)) {
break;
} else {
targetValue = targetValue.get(name);
}
}
return targetValue == null ? null : targetValue;
}
@Override
public String toString() {
final StringBuilder buf = new StringBuilder();
buf.append(path[0]);
for(int i = 1; i < path.length; ++i) {
buf.append('.').append(path[i]);
}
return buf.toString();
}
}