Example usage for java.io PrintStream println

List of usage examples for java.io PrintStream println

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Introduction

In this page you can find the example usage for java.io PrintStream println.

Prototype

public void println(Object x)

Source Link

Document

Prints an Object and then terminate the line.

Usage

From source file:hu.bme.mit.sette.run.Run.java

private static String readScenario(String[] args, BufferedReader in, PrintStream out) throws IOException {
    String scenario = null;//from   w ww  .  j a  v a2 s . co  m

    if (args.length > 1) {
        out.println("Usage: java -jar SETTE.jar [scenario]");
        out.println("Available scenarios:");
        for (int i = 0; i < Run.scenarios.length; i++) {
            out.println(String.format("  [%d] %s", i, Run.scenarios[i]));
        }
    } else if (args.length == 1) {
        scenario = Run.parseScenario(args[0]);
        if (scenario == null) {
            out.println("Invalid scenario: " + args[0].trim());
            out.println("Available scenarios:");
            for (int i = 0; i < Run.scenarios.length; i++) {
                out.println(String.format("  [%d] %s", i, Run.scenarios[i]));
            }
        }
    } else {
        while (scenario == null) {
            out.println("Available scenarios:");
            for (int i = 0; i < Run.scenarios.length; i++) {
                out.println(String.format("  [%d] %s", i, Run.scenarios[i]));
            }

            out.print("Select scenario: ");

            String line = in.readLine();

            if (line == null) {
                out.println("EOF detected, exiting");
                return null;
            } else if (StringUtils.isBlank(line)) {
                out.println("Exiting");
                return null;
            }

            scenario = Run.parseScenario(line);
            if (scenario == null) {
                out.println("Invalid scenario: " + line.trim());
            }
        }
    }

    out.println("Selected scenario: " + scenario);
    return scenario;
}

From source file:com.simiacryptus.util.Util.java

/**
 * Report./*  w  w w .  j a v  a2s .com*/
 *
 * @param fragments the fragments
 * @throws IOException the io exception
 */
public static void report(@javax.annotation.Nonnull final Stream<String> fragments) throws IOException {
    @javax.annotation.Nonnull
    final File outDir = new File("reports");
    outDir.mkdirs();
    final StackTraceElement caller = com.simiacryptus.util.Util
            .getLast(Arrays.stream(Thread.currentThread().getStackTrace())//
                    .filter(x -> x.getClassName().contains("simiacryptus")));
    @javax.annotation.Nonnull
    final File report = new File(outDir, caller.getClassName() + "_" + caller.getLineNumber() + ".html");
    @javax.annotation.Nonnull
    final PrintStream out = new PrintStream(new FileOutputStream(report));
    out.println("<html><head></head><body>");
    fragments.forEach(out::println);
    out.println("</body></html>");
    out.close();
    Desktop.getDesktop().browse(report.toURI());
}

From source file:Armadillo.Analytics.Base.FastMathCalc.java

/**
 * Print an array./*from   w  ww . jav  a2  s  . c  o m*/
 * @param out text output stream where output should be printed
 * @param name array name
 * @param expectedLen expected length of the array
 * @param array array data
 */
static void printarray(PrintStream out, String name, int expectedLen, double[] array) {
    out.println(name + "=");
    checkLen(expectedLen, array.length);
    out.println(TABLE_START_DECL);
    for (double d : array) {
        out.printf("        %s%n", format(d)); // one entry per line
    }
    out.println(TABLE_END_DECL);
}

From source file:Armadillo.Analytics.Base.FastMathCalc.java

/**
 * Print an array.//w ww .j  a  v a2  s  .  c  o m
 * @param out text output stream where output should be printed
 * @param name array name
 * @param expectedLen expected length of the array
 * @param array2d array data
 */
static void printarray(PrintStream out, String name, int expectedLen, double[][] array2d) {
    out.println(name);
    checkLen(expectedLen, array2d.length);
    out.println(TABLE_START_DECL + " ");
    int i = 0;
    for (double[] array : array2d) { // "double array[]" causes PMD parsing error
        out.print("        {");
        for (double d : array) { // assume inner array has very few entries
            out.printf("%-25.25s", format(d)); // multiple entries per line
        }
        out.println("}, // " + i++);
    }
    out.println(TABLE_END_DECL);
}

From source file:ie.aib.nbp.zosresttest.RunTest.java

private static void runPerformanceTest(String username, String password, PrintStream out,
        boolean attachResponse, boolean formatResponse) {
    ZosRestServicePerformanceRunner runner = new ZosRestServicePerformanceRunner(config.getProperty("HOST"),
            Integer.parseInt(config.getProperty("PORT")), out);
    try {/*ww  w .j  a  v  a  2  s. c o  m*/
        readConfig(RUN_PARAM_FILE_PATH);
        String url = config.getProperty("URL");
        String payload = config.getProperty("PAYLOAD");
        int loops = Integer.parseInt(config.getProperty("LOOPS"));

        SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss z");
        out.println("z/OS performance test started at: " + sdf.format(new Date()));
        out.println(" ");
        List<Long> elapsedTimes = new ArrayList<>();
        for (int i = 0; i < loops; i++) {
            long elapsedTime = runner.executeServices(url, username, password, payload, out, attachResponse,
                    formatResponse);
            elapsedTimes.add(elapsedTime);
        }
        // calculating avg. time
        Long totalTime = 0L;
        for (Long time : elapsedTimes)
            totalTime = totalTime + time;
        Double avgTime = totalTime.doubleValue() / elapsedTimes.size();
        out.println("Average run time: " + avgTime + " miliseconds");
        out.println("");
        out.println("z/OS performance test ended at: " + sdf.format(new Date()));

    } catch (NumberFormatException ex) {
        out.println("Unable to run the test, elther the number of parameters or their values are incorrect.");
    }

}

From source file:com.phantom.hadoop.examples.BaileyBorweinPlouffe.java

/** Run a map/reduce job to compute Pi. */
private static void compute(int startDigit, int nDigits, int nMaps, String workingDir, Configuration conf,
        PrintStream out) throws IOException {
    final String name = startDigit + "_" + nDigits;

    // setup wroking directory
    out.println("Working Directory = " + workingDir);
    out.println();//w ww .j a v a2 s . com
    final FileSystem fs = FileSystem.get(conf);
    final Path dir = fs.makeQualified(new Path(workingDir));
    if (fs.exists(dir)) {
        throw new IOException("Working directory " + dir + " already exists.  Please remove it first.");
    } else if (!fs.mkdirs(dir)) {
        throw new IOException("Cannot create working directory " + dir);
    }

    out.println("Start Digit      = " + startDigit);
    out.println("Number of Digits = " + nDigits);
    out.println("Number of Maps   = " + nMaps);

    // setup a job
    final Job job = createJob(name, conf);
    final Path hexfile = new Path(dir, "pi_" + name + ".hex");
    FileOutputFormat.setOutputPath(job, new Path(dir, "out"));

    // setup custom properties
    job.getConfiguration().set(WORKING_DIR_PROPERTY, dir.toString());
    job.getConfiguration().set(HEX_FILE_PROPERTY, hexfile.toString());

    job.getConfiguration().setInt(DIGIT_START_PROPERTY, startDigit);
    job.getConfiguration().setInt(DIGIT_SIZE_PROPERTY, nDigits);
    job.getConfiguration().setInt(DIGIT_PARTS_PROPERTY, nMaps);

    // start a map/reduce job
    out.println("\nStarting Job ...");
    final long startTime = System.currentTimeMillis();
    try {
        if (!job.waitForCompletion(true)) {
            out.println("Job failed.");
            System.exit(1);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        final double duration = (System.currentTimeMillis() - startTime) / 1000.0;
        out.println("Duration is " + duration + " seconds.");
    }
    out.println("Output file: " + hexfile);
}

From source file:cn.jpush.hdfs.mr.example.BaileyBorweinPlouffe.java

/** Run a map/reduce job to compute Pi. */
private static void compute(int startDigit, int nDigits, int nMaps, String workingDir, Configuration conf,
        PrintStream out) throws IOException {
    final String name = startDigit + "_" + nDigits;

    // setup wroking directory
    out.println("Working Directory = " + workingDir);
    out.println();//  w w w  .  ja  va  2  s .  c om
    // final FileSystem fs = FileSystem.get(conf);// ?
    final FileSystem fs = new Path(workingDir, "part-r-00000").getFileSystem(conf);// ?
    final Path dir = fs.makeQualified(new Path(workingDir));
    if (fs.exists(dir)) {
        throw new IOException("Working directory " + dir + " already exists.  Please remove it first.");
    } else if (!fs.mkdirs(dir)) {
        throw new IOException("Cannot create working directory " + dir);
    }

    out.println("Start Digit      = " + startDigit);
    out.println("Number of Digits = " + nDigits);
    out.println("Number of Maps   = " + nMaps);

    // setup a job
    final Job job = createJob(name, conf);
    final Path hexfile = new Path(dir, "pi_" + name + ".hex");
    FileOutputFormat.setOutputPath(job, new Path(dir, "out"));

    // setup custom properties
    job.getConfiguration().set(WORKING_DIR_PROPERTY, dir.toString());
    job.getConfiguration().set(HEX_FILE_PROPERTY, hexfile.toString());

    job.getConfiguration().setInt(DIGIT_START_PROPERTY, startDigit);
    job.getConfiguration().setInt(DIGIT_SIZE_PROPERTY, nDigits);
    job.getConfiguration().setInt(DIGIT_PARTS_PROPERTY, nMaps);

    // start a map/reduce job
    out.println("\nStarting Job ...");
    final long startTime = System.currentTimeMillis();
    try {
        if (!job.waitForCompletion(true)) {
            out.println("Job failed.");
            System.exit(1);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        final double duration = (System.currentTimeMillis() - startTime) / 1000.0;
        out.println("Duration is " + duration + " seconds.");
    }
    out.println("Output file: " + hexfile);
}

From source file:disko.DU.java

public static void printScope(PrintStream out, HyperGraph graph, HGHandle scope,
        HGAtomPredicate stopRecursionPredicate, String indent) {
    Object scopeAtom = graph.get(scope);
    if (scopeAtom instanceof SynRel)
        out.println(indent + ((SynRel) scopeAtom).toString(graph));
    else/* ww w .  ja  v  a  2  s  .co  m*/
        out.println(indent + scopeAtom);
    List<HGHandle> scopeLinks = hg.findAll(graph, hg.and(hg.type(ScopeLink.class), hg.incident(scope),
            hg.orderedLink(scope, graph.getHandleFactory().anyHandle())));
    for (HGHandle lh : scopeLinks) {
        ScopeLink link = graph.get(lh);
        if (link == null) {
            System.err.println("Opps, missing atom for " + lh);
            continue;
        }
        HGHandle scoped = link.getTargetAt(1);
        if (stopRecursionPredicate == null || !stopRecursionPredicate.satisfies(graph, scoped))
            printScope(out, graph, scoped, stopRecursionPredicate, indent + "\t");
    }
}

From source file:hu.bme.mit.sette.run.Run.java

private static Tool readTool(BufferedReader in, PrintStream out) throws IOException {
    // select tool
    Tool[] tools = ToolRegister.toArray();
    Tool tool = null;/* w ww .  j a v a  2  s  . c o  m*/
    while (tool == null) {
        out.println("Available tools:");
        for (int i = 0; i < tools.length; i++) {
            out.println(String.format("  [%d] %s", i + 1, tools[i].getName()));
        }

        out.print("Select tool: ");

        String line = in.readLine();

        if (line == null) {
            out.println("EOF detected, exiting");
            return null;
        } else if (StringUtils.isBlank(line)) {
            out.println("Exiting");
            return null;
        }

        line = line.trim();
        int idx = -1;

        for (int i = 0; i < tools.length; i++) {
            if (tools[i].getName().equalsIgnoreCase(line)) {
                idx = i;
                break;
            }
        }

        if (idx >= 0) {
            tool = tools[idx];
        } else {
            try {
                tool = tools[Integer.parseInt(line) - 1];
            } catch (Exception e) {
                tool = null;
            }
        }

        if (tool == null) {
            out.println("Invalid tool: " + line.trim());
        }
    }

    out.println("Selected tool: " + tool.getName());

    return tool;
}

From source file:hudson.os.solaris.ZFSInstaller.java

/**
 * Migrates $HUDSON_HOME to a new ZFS file system.
 *
 * TODO: do this in a separate JVM to elevate the privilege.
 *
 * @param listener//from w  ww  .j  av  a  2 s  .  c  o  m
 *      Log of migration goes here.
 * @param target
 *      Dataset to move the data to.
 * @return
 *      false if a migration failed.
 */
private static boolean migrate(TaskListener listener, String target) throws IOException, InterruptedException {
    PrintStream out = listener.getLogger();

    File home = Hudson.getInstance().getRootDir();
    // do the migration
    LibZFS zfs = new LibZFS();
    ZFSFileSystem existing = zfs.getFileSystemByMountPoint(home);
    if (existing != null) {
        out.println(home + " is already on ZFS. Doing nothing");
        return true;
    }

    File tmpDir = Util.createTempDir();

    // mount a new file system to a temporary location
    out.println("Opening " + target);
    ZFSFileSystem hudson = zfs.open(target, ZFSFileSystem.class);
    hudson.setMountPoint(tmpDir);
    hudson.setProperty("hudson:managed-by", "hudson"); // mark this file system as "managed by Hudson"
    hudson.mount();

    // copy all the files
    out.println("Copying all existing data files");
    if (system(home, listener, "/usr/bin/cp", "-pR", ".", tmpDir.getAbsolutePath()) != 0) {
        out.println("Failed to copy " + home + " to " + tmpDir);
        return false;
    }

    // unmount
    out.println("Unmounting " + target);
    hudson.unmount(MountFlags.MS_FORCE);

    // move the original directory to the side
    File backup = new File(home.getPath() + ".backup");
    out.println("Moving " + home + " to " + backup);
    if (backup.exists())
        Util.deleteRecursive(backup);
    if (!home.renameTo(backup)) {
        out.println("Failed to move your current data " + home + " out of the way");
    }

    // update the mount point
    out.println("Creating a new mount point at " + home);
    if (!home.mkdir())
        throw new IOException("Failed to create mount point " + home);

    out.println("Mounting " + target);
    hudson.setMountPoint(home);
    hudson.mount();

    out.println("Sharing " + target);
    try {
        hudson.setProperty("sharesmb", "on");
        hudson.setProperty("sharenfs", "on");
        hudson.share();
    } catch (ZFSException e) {
        listener.error("Failed to share the file systems: " + e.getCode());
    }

    // delete back up
    out.println("Deleting " + backup);
    if (system(new File("/"), listener, "/usr/bin/rm", "-rf", backup.getAbsolutePath()) != 0) {
        out.println("Failed to delete " + backup.getAbsolutePath());
        return false;
    }

    out.println("Migration completed");
    return true;
}