Example usage for java.lang Runtime getRuntime

Introduction

In this page you can find the example usage for java.lang Runtime getRuntime.

Prototype

public static Runtime getRuntime() 

Source Link

Document

Returns the runtime object associated with the current Java application.

Usage

From source file:Main.java

public static String getSystemProperty(String propName) {
    String line;//from  w  w w  .j a v  a  2  s  .co  m
    BufferedReader input = null;
    try {
        Process p = Runtime.getRuntime().exec("getprop " + propName);
        input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
        line = input.readLine();
        input.close();
    } catch (IOException ex) {
        Log.e(TAG, "Unable to read sysprop " + propName, ex);
        return null;
    } finally {
        if (input != null) {
            try {
                input.close();
            } catch (IOException e) {
                Log.e(TAG, "Exception while closing InputStream", e);
            }
        }
    }
    return line;
}

---

From source file:Main.java

public static void GetSUAccess() {
    Thread su = new Thread(new Thread() {
        public void run() {
            try {
                Log.i("SU", "Trying to grant access to port...");
                Process suProcess = Runtime.getRuntime().exec("su");

                DataOutputStream os = new DataOutputStream(suProcess.getOutputStream());

                if (null != os) {
                    os.writeBytes("chmod 666 /dev/ttymxc1 \n");
                    os.flush();//  ww  w  . j  av  a2s.c om
                }
                Log.i("SU", "Granted Access to Port");
            } catch (IOException e) {
                Log.e("SU", "Grant SuperUser Access Failed");
            }
        }
    });
    su.start();
}

---

From source file:Main.java

public static void execCmd(String cmd) {
    DataOutputStream dos = null;// ww w  .ja v  a 2s  .com
    DataInputStream dis = null;
    try {
        Process p = Runtime.getRuntime().exec("su");
        dos = new DataOutputStream(p.getOutputStream());
        cmd += "\n";
        dos.writeBytes(cmd);
        dos.flush();
        dos.writeBytes("exit\n");
        dos.flush();
        p.waitFor();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } finally {
        try {
            if (dos != null)
                dos.close();
            if (dis != null)
                dis.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

---

From source file:com.github.rwhogg.git_vcr.App.java

/**
 * main is the entry point for Git-VCR//from  w  w w  .  j a va 2s. c o  m
 * @param args Command-line arguments
 */
public static void main(String[] args) {
    Options options = parseCommandLine(args);

    HierarchicalINIConfiguration configuration = null;
    try {
        configuration = getConfiguration();
    } catch (ConfigurationException e) {
        Util.error("could not parse configuration file!");
    }

    // verify we are in a git folder and then construct the repo
    final File currentFolder = new File(".");
    FileRepositoryBuilder builder = new FileRepositoryBuilder();
    Repository localRepo = null;
    try {
        localRepo = builder.findGitDir().build();
    } catch (IOException e) {
        Util.error("not in a Git folder!");
    }

    // deal with submodules
    assert localRepo != null;
    if (localRepo.isBare()) {
        FileRepositoryBuilder parentBuilder = new FileRepositoryBuilder();
        Repository parentRepo;
        try {
            parentRepo = parentBuilder.setGitDir(new File("..")).findGitDir().build();
            localRepo = SubmoduleWalk.getSubmoduleRepository(parentRepo, currentFolder.getName());
        } catch (IOException e) {
            Util.error("could not find parent of submodule!");
        }
    }

    // if we need to retrieve the patch file, get it now
    URL patchUrl = options.getPatchUrl();
    String patchPath = patchUrl.getFile();
    File patchFile = null;
    HttpUrl httpUrl = HttpUrl.get(patchUrl);
    if (httpUrl != null) {
        try {
            patchFile = com.twitter.common.io.FileUtils.SYSTEM_TMP.createFile(".diff");
            Request request = new Request.Builder().url(httpUrl).build();
            OkHttpClient client = new OkHttpClient();
            Call call = client.newCall(request);
            Response response = call.execute();
            ResponseBody body = response.body();
            if (!response.isSuccessful()) {
                Util.error("could not retrieve diff file from URL " + patchUrl);
            }
            String content = body.string();
            org.apache.commons.io.FileUtils.write(patchFile, content, (Charset) null);
        } catch (IOException ie) {
            Util.error("could not retrieve diff file from URL " + patchUrl);
        }
    } else {
        patchFile = new File(patchPath);
    }

    // find the patch
    //noinspection ConstantConditions
    if (!patchFile.canRead()) {
        Util.error("patch file " + patchFile.getAbsolutePath() + " is not readable!");
    }

    final Git git = new Git(localRepo);

    // handle the branch
    String branchName = options.getBranchName();
    String theOldCommit = null;
    try {
        theOldCommit = localRepo.getBranch();
    } catch (IOException e2) {
        Util.error("could not get reference to current branch!");
    }
    final String oldCommit = theOldCommit; // needed to reference from shutdown hook

    if (branchName != null) {
        // switch to the branch
        try {
            git.checkout().setName(branchName).call();
        } catch (RefAlreadyExistsException e) {
            // FIXME Auto-generated catch block
            e.printStackTrace();
        } catch (RefNotFoundException e) {
            Util.error("the branch " + branchName + " was not found!");
        } catch (InvalidRefNameException e) {
            Util.error("the branch name " + branchName + " is invalid!");
        } catch (org.eclipse.jgit.api.errors.CheckoutConflictException e) {
            Util.error("there was a checkout conflict!");
        } catch (GitAPIException e) {
            Util.error("there was an unspecified Git API failure!");
        }
    }

    // ensure there are no changes before we apply the patch
    try {
        if (!git.status().call().isClean()) {
            Util.error("cannot run git-vcr while there are uncommitted changes!");
        }
    } catch (NoWorkTreeException e1) {
        // won't happen
        assert false;
    } catch (GitAPIException e1) {
        Util.error("call to git status failed!");
    }

    // list all the files changed
    String patchName = patchFile.getName();
    Patch patch = new Patch();
    try {
        patch.parse(new FileInputStream(patchFile));
    } catch (FileNotFoundException e) {
        assert false;
    } catch (IOException e) {
        Util.error("could not parse the patch file!");
    }

    ReviewResults oldResults = new ReviewResults(patchName, patch, configuration, false);
    try {
        oldResults.review();
    } catch (InstantiationException e1) {
        Util.error("could not instantiate a review tool class!");
    } catch (IllegalAccessException e1) {
        Util.error("illegal access to a class");
    } catch (ClassNotFoundException e1) {
        Util.error("could not find a review tool class");
    } catch (ReviewFailedException e1) {
        e1.printStackTrace();
        Util.error("Review failed!");
    }

    // we're about to change the repo, so register a shutdown hook to clean it up
    Runtime.getRuntime().addShutdownHook(new Thread() {
        public void run() {
            cleanupGit(git, oldCommit);
        }
    });

    // apply the patch
    try {
        git.apply().setPatch(new FileInputStream(patchFile)).call();
    } catch (PatchFormatException e) {
        Util.error("patch file " + patchFile.getAbsolutePath() + " is malformatted!");
    } catch (PatchApplyException e) {
        Util.error("patch file " + patchFile.getAbsolutePath() + " did not apply correctly!");
    } catch (FileNotFoundException e) {
        assert false;
    } catch (GitAPIException e) {
        Util.error(e.getLocalizedMessage());
    }

    ReviewResults newResults = new ReviewResults(patchName, patch, configuration, true);
    try {
        newResults.review();
    } catch (InstantiationException e1) {
        Util.error("could not instantiate a review tool class!");
    } catch (IllegalAccessException e1) {
        Util.error("illegal access to a class");
    } catch (ClassNotFoundException e1) {
        Util.error("could not find a review tool class");
    } catch (ReviewFailedException e1) {
        e1.printStackTrace();
        Util.error("Review failed!");
    }

    // generate and show the report
    VelocityReport report = new VelocityReport(patch, oldResults, newResults);
    File reportFile = null;
    try {
        reportFile = com.twitter.common.io.FileUtils.SYSTEM_TMP.createFile(".html");
        org.apache.commons.io.FileUtils.write(reportFile, report.toString(), (String) null);
    } catch (IOException e) {
        Util.error("could not generate the results page!");
    }

    try {
        assert reportFile != null;
        Desktop.getDesktop().open(reportFile);
    } catch (IOException e) {
        Util.error("could not open the results page!");
    }
}

---

From source file:Main.java

public static String getCPUMaxOneCore() {
    StringBuilder sb = new StringBuilder();
    String line = null;/*from w  w w .  jav  a  2 s.  c om*/

    String txtInfo = "";
    try {
        Process proc = Runtime.getRuntime().exec("cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq");
        InputStream is = proc.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        try {
            while ((line = br.readLine()) != null) {
                if (line.length() > 2) {
                    txtInfo = line;
                }
            }
        } catch (IOException e) {
            // Log.v("getStringFromInputStream", "------ getStringFromInputStream " + e.getMessage());
        } finally {
            if (br != null) {
                try {
                    br.close();
                } catch (IOException e) {
                    //      Log.v("getStringFromInputStream", "------ getStringFromInputStream " + e.getMessage());
                }
            }
        }

    } catch (IOException e) {

    }
    return txtInfo;
}

---

From source file:Main.java

public static int findProcessIdWithPidOf(String command) throws Exception {

    int procId = -1;

    Runtime r = Runtime.getRuntime();

    Process procPs = null;/* w  w  w  .j a v  a2s. co  m*/

    String baseName = new File(command).getName();
    //fix contributed my mikos on 2010.12.10
    procPs = r.exec(new String[] { SHELL_CMD_PIDOF, baseName });
    //procPs = r.exec(SHELL_CMD_PIDOF);

    BufferedReader reader = new BufferedReader(new InputStreamReader(procPs.getInputStream()));
    String line = null;

    while ((line = reader.readLine()) != null) {

        try {
            //this line should just be the process id
            procId = Integer.parseInt(line.trim());
            break;
        } catch (NumberFormatException e) {
            logException("unable to parse process pid: " + line, e);
        }
    }

    return procId;

}

---

From source file:Main.java

/**
 * Create new executor with a thread for each processor core.
 *
 * @return A new executor with a thread for each processor core.
 *//*w  w w.jav  a 2 s. com*/
public static ExecutorService allAvailableProcessors() {
    return Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors());
}

---

From source file:Main.java

public static int doShellCommand(String[] cmds, StringBuilder log, boolean runAsRoot, boolean waitFor)
        throws Exception {
    Process proc = null;/*www .j a v  a 2 s . com*/
    int exitCode = -1;

    if (runAsRoot) {
        proc = Runtime.getRuntime().exec("su");
    } else {
        proc = Runtime.getRuntime().exec("sh");
    }

    OutputStreamWriter out = new OutputStreamWriter(proc.getOutputStream());

    for (int i = 0; i < cmds.length; i++) {
        out.write(cmds[i]);
        out.write("\n");
    }

    out.flush();
    out.write("exit\n");
    out.flush();

    if (waitFor) {
        final char buf[] = new char[10];

        // Consume the "stdout"
        InputStreamReader reader = new InputStreamReader(proc.getInputStream());
        int read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        // Consume the "stderr"
        reader = new InputStreamReader(proc.getErrorStream());
        read = 0;
        while ((read = reader.read(buf)) != -1) {
            if (log != null)
                log.append(buf, 0, read);
        }

        exitCode = proc.waitFor();
    }

    return exitCode;
}

---

From source file:Main.java

public static void killProcess(String packageName) {
    String processId = "";
    try {/*from ww w .j a v  a  2s  .  c o  m*/
        Runtime r = Runtime.getRuntime();
        Process p = r.exec("ps");
        BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
        String inline;
        while ((inline = br.readLine()) != null) {
            if (packageName != null) {
                if (inline.contains(packageName)) {
                    break;
                }
            } else {
                Log.e("PvTorrent_proc", "packageName is null");
            }

        }
        br.close();
        Log.i("PvTorrent_proc", "inline" + inline);
        if (inline != null) {

            StringTokenizer processInfoTokenizer = new StringTokenizer(inline);
            int count = 0;
            while (processInfoTokenizer.hasMoreTokens()) {
                count++;
                processId = processInfoTokenizer.nextToken();
                if (count == 2) {
                    break;
                }
            }
            Log.i("PvTorrent_proc", "kill process : " + processId);
            r.exec("kill -9 " + processId);
        }
    } catch (IOException ex) {
        Log.e("PvTorrent_proc", "kill" + ex.getStackTrace());
    }
}

---

From source file:Main.java

public static String getSystemProperty(String propName) {
    String line = "";
    BufferedReader input = null;/*w ww  . j  av  a 2  s  . c  om*/
    try {
        Process p = Runtime.getRuntime().exec("getprop " + propName);
        input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
        line = input.readLine();
        input.close();
    } catch (IOException ex) {
        Log.e(TAG, "Unable to read sysprop " + propName, ex);
        return null;
    } finally {
        if (input != null) {
            try {
                input.close();
            } catch (IOException e) {
                Log.e(TAG, "Exception while closing InputStream", e);
            }
        }
    }
    return line;
}

---

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