/*
 * Copyright (c) 2006 Hyperic, Inc.
 *
 * 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.hyperic.sigar.cmd;

import java.util.Map;
import java.util.Iterator;

import org.hyperic.sigar.SigarException;

/**
 * Show process environment.
 */
public class ShowEnv extends SigarCommandBase {

    public ShowEnv(Shell shell) {
        super(shell);
    }

    public ShowEnv() {
        super();
    }

    protected boolean validateArgs(String[] args) {
        return true;
    }

    public String getUsageShort() {
        return "Show process environment";
    }

    public boolean isPidCompleter() {
        return true;
    }

    public void output(String[] args) throws SigarException {
        long[] pids = this.shell.findPids(args);

        for (int i=0; i<pids.length; i++) {
            try {
                println("pid=" + pids[i]);
                output(pids[i]);
            } catch (SigarException e) {
                println(e.getMessage());
            }
            println("\n------------------------\n");
        }
    }

    public void output(long pid) throws SigarException {
        Map env = this.proxy.getProcEnv(pid);

        for (Iterator it = env.entrySet().iterator();
             it.hasNext();)
        {
            Map.Entry ent = (Map.Entry)it.next();

            println(ent.getKey() + "=" + ent.getValue());
        }
    }

    public static void main(String[] args) throws Exception {
        new ShowEnv().processCommand(args);
    }
}