com.athena.peacock.common.core.util.SshExecUtil.java Source code

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Here is the source code for com.athena.peacock.common.core.util.SshExecUtil.java

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/* 
 * Athena Peacock Project - Server Provisioning Engine for IDC or Cloud
 * 
 * Copyright (C) 2013 Open Source Consulting, Inc. All rights reserved by Open Source Consulting, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * Revision History
 * Author         Date            Description
 * ---------------   ----------------   ------------
 * Sang-cheon Park   2013. 10. 11.      First Draft.
 */
package com.athena.peacock.common.core.util;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.List;

import org.apache.commons.io.IOUtils;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.taskdefs.optional.ssh.SSHExec;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.Assert;

import com.athena.peacock.common.core.action.support.TargetHost;

/**
 * <pre>
 * ? ? ssh ?  ? ?    ?
 * </pre>
 * 
 * @author Sang-cheon Park
 * @version 1.0
 */
public class SshExecUtil {

    private static final Logger logger = LoggerFactory.getLogger(SshExecUtil.class);

    public static File output = new File("exec_result.log"); // ? root? ? ?.

    private static FileWriter fstream = null;
    private static BufferedWriter out = null;

    /**
     * <pre>
     * 
     * </pre>
     * @param targetHost
     * @param commandList
     * @throws IOException 
     */
    public static void executeCommand(TargetHost targetHost, List<String> commandList) throws IOException {
        fstream = new FileWriter(output, false);
        out = new BufferedWriter(fstream);

        for (String command : commandList) {
            out.write("[" + targetHost.getUsername() + "@" + targetHost.getHost() + " ~]$ " + command + "\n");
            out.write(executeCommand(targetHost, command));
        }

        IOUtils.closeQuietly(out);
    }//end of executeCommand()

    /**
     * <pre>
     * 
     * </pre>
     * @param targetHost
     * @param command
     * @return
     * @throws IOException 
     */
    public static String executeCommand(TargetHost targetHost, String command) throws IOException {
        Assert.notNull(targetHost, "targetHost cannot be null.");
        Assert.notNull(command, "command cannot be null.");

        File result = new File(SshExecUtil.class.getClassLoader().getResource(".").getFile(), "result.log");

        if (!command.startsWith("sudo")) {
            command = "sudo " + command;
        }

        logger.debug("[ssh exec] " + command);

        Project project = new Project();

        SSHExec exec = new SSHExec();
        exec.setProject(project);
        exec.setHost(targetHost.getHost());
        exec.setPort(targetHost.getPort());
        exec.setUsername(targetHost.getUsername());
        exec.setPassword(targetHost.getPassword());

        // to enable sudo like 'ssh -t' option
        exec.setUsePty(true);

        if (targetHost.getKeyfile() != null) {
            exec.setKeyfile(targetHost.getKeyfile());
        }

        exec.setTrust(targetHost.isTrust());
        exec.setVerbose(true);
        exec.setCommand(command);

        // command   ? ? 
        exec.setOutput(result);
        exec.setAppend(false);

        exec.execute();

        return IOUtils.toString(result.toURI());
    }//end of executeCommand()

}
//end of SshExecUtil.java