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/*
 * Copyright (c) MuleSoft, Inc.  All rights reserved.  http://www.mulesoft.com
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package org.mule.test.infrastructure.process;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class WindowsController extends Controller
{
    protected static final String PID_WINDOWS = "(\\s)*PID (\\s)+ :(\\s)*([0-9])+";
    protected static final Pattern PID_PATTERN_WINDOWS = Pattern.compile(PID_WINDOWS);

    public WindowsController(String muleHome, int timeout)
    {
        super(muleHome, timeout);
    }

    @Override
    public String getMuleBin()
    {
        return muleHome + "/bin/mule.bat";
    }

    @Override
    public void start(String[] args)
    {
        install(args);
        super.start(args);
    }

    @Override
    public void stop(String[] args)
    {
        super.stop(args);
        int errorRemove = runSync("remove");
        if (errorRemove!= 0 && errorRemove != 0x424)
        {
            throw new MuleControllerException("The mule instance couldn't be removed as a service");
        }
    }

    @Override
    public int getProcessId()
    {
        String muleResult = executeCmd("sc queryex \"mule\" ");
        String muleEEResult = executeCmd("sc queryex \"mule_ee\" ");
        if (muleResult.contains("RUNNING"))
        {
            return getId(muleResult);
        }
        else if (muleEEResult.contains("RUNNING"))
        {
            return getId(muleEEResult);
        }
        else
        {
            throw new MuleControllerException("No mule instance is running");
        }
    }

    private int getId(String str)
    {
        Matcher matcher = PID_PATTERN_WINDOWS.matcher(str);
        String result;
        if (matcher.find())
        {
            result = matcher.group(0);
        }
        else
        {
            throw new MuleControllerException("PID pattern not recognized in " + str);
        }
        String[] resultArray = result.split(": ");
        return Integer.parseInt(resultArray[1]);
    }

    @Override
    public int status(String[] args)
    {
        String muleResult = executeCmd("sc queryex \"mule\" ");
        String muleEEResult = executeCmd("sc queryex \"mule_ee\" ");
        Boolean result = muleResult.contains("RUNNING") || muleEEResult.contains("RUNNING");
        return result ? 0 : 1;
    }

    private String executeCmd(String cmd)
    {
        StringBuilder output = new StringBuilder();
        Process p;
        try {
            p = Runtime.getRuntime().exec(cmd);
            BufferedReader reader = new BufferedReader(new InputStreamReader(p.getInputStream()));
            String line = "";
            while ((line = reader.readLine())!= null) {
                output.append(line + "\n");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return output.toString();
    }

    public void restart(String[] args)
    {
        install(args);
        super.restart(args);
    }

    private void install(String... args)
    {
        int errorInstall = runSync("install", args);
        if (errorInstall != 0 && errorInstall != 0x431)
        {
            throw new MuleControllerException("The mule instance couldn't be installed as a service");
        }
    }
}




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