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A fork of MVEL by Axibase. Original version is hosted here: https://github.com/mvel/mvel.
MVEL is a powerful expression language for Java-based applications.
It provides a plethora of features and is suited for everything
from the smallest property binding and extraction, to full blown scripts.
/**
* MVEL 2.0
* Copyright (C) 2007 The Codehaus
* Mike Brock, Dhanji Prasanna, John Graham, Mark Proctor
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.mvel2.sh.command.basic;
import org.mvel2.sh.Command;
import org.mvel2.sh.CommandException;
import org.mvel2.sh.ShellSession;
import org.mvel2.util.StringAppender;
import java.util.Map;
public class Set implements Command {
public Object execute(ShellSession session, String[] args) {
Map env = session.getEnv();
if (args.length == 0) {
for (String var : env.keySet()) {
System.out.println(var + " = " + env.get(var));
}
}
else if (args.length == 1) {
throw new CommandException("incorrect number of parameters");
}
else {
StringAppender sbuf = new StringAppender();
for (int i = 1; i < args.length; i++) {
sbuf.append(args[i]);
if (i < args.length) sbuf.append(" ");
}
env.put(args[0], sbuf.toString().trim());
}
return null;
}
public String getDescription() {
return "sets an environment variable";
}
public String getHelp() {
return null;
}
}