com.excella.deploy.agent.core.UnixShellCommand.java Source code

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Here is the source code for com.excella.deploy.agent.core.UnixShellCommand.java

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/*
 * Copyright 2010
 * Excella Consulting
 * All Rights Reserved.
 *
 * This software is the proprietary information
 * of Excella Consulting.
 * Use is subject to license terms.
 *
 * Created On: Nov 23, 2010
 * Created By: J. Michael McGarr
 */
package com.excella.deploy.agent.core;

import static com.excella.deploy.agent.core.StreamUtil.close;

import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Unix implementation of the Command interface that can execute a Shell Script. 
 * 
 * @author <a href="email:mike.mcgarr@excella.com">J. Michael McGarr</a>
 */
public class UnixShellCommand implements Command {
    private static Log log = LogFactory.getLog(UnixShellCommand.class);

    private String command = "$JBOSS_HOME/bin/appdeploy.sh";
    private String stdout;
    private String stderr = "/dev/null";
    private boolean executeInBackground = false;

    /**
    * {@inheritDoc}
    */
    public String execute() throws FailedCommandException {
        return execute("");
    }

    /**
     * {@inheritDoc}
     */
    public String execute(String argument) throws FailedCommandException {
        String line = "";
        StringBuffer buffer = new StringBuffer();
        String command = getJBossHome() + "/bin/appdeploy.sh " + argument + " 2>/dev/null";
        InputStreamReader inputStream = null;
        BufferedReader input = null;

        log.info("Running an RSM Deployment using the following command: " + command);
        try {
            Runtime runtime = Runtime.getRuntime();
            Process process = runtime.exec(command);
            int exitValue = process.waitFor();
            inputStream = new InputStreamReader(process.getInputStream());
            input = new BufferedReader(inputStream);
            while ((line = input.readLine()) != null) {
                log.debug("> " + line);
                buffer.append(line);
                buffer.append("<br/>");
            }

            log.info("RSM Deployment Kicked off.  Exited with [" + exitValue + "]");
        } catch (Exception e) {
            throw new FailedCommandException("Unable to execute the command.", e);
        } finally {
            close(inputStream);
            close(input);
        }
        return buffer.toString();
    }

    private String getJBossHome() {
        String home = "/opt/data/jboss";
        String env = System.getenv("JBOSS_HOME");
        log.debug("JBOSS_HOME is set to [" + env + "]");
        if (env != null) {
            home = env;
        }
        return home;
    }
}