Example usage for java.io PrintStream close

Introduction

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

Prototype

public void close() 

Source Link

Document

Closes the stream.

Usage

From source file:com.panet.imeta.shared.SharedObjects.java

public void saveToFile() throws IOException, KettleException {
    OutputStream outputStream = KettleVFS.getOutputStream(filename, false);

    PrintStream out = new PrintStream(outputStream);

    out.print(XMLHandler.getXMLHeader(Const.XML_ENCODING));
    out.println("<" + XML_TAG + ">");

    Collection<SharedObjectInterface> collection = objectsMap.values();
    for (SharedObjectInterface sharedObject : collection) {
        out.println(sharedObject.getXML());
    }//from w ww .j  a va2  s. c  om

    out.println("</" + XML_TAG + ">");

    out.flush();
    out.close();
    outputStream.close();
}

---

From source file:org.apache.pig.test.TestLocal.java

License:asdf

@Test
public void testDefinedFunctions() throws Throwable {

    File tmpFile = File.createTempFile("test", ".txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for (int i = 0; i < 1; i++) {
        ps.println(i);/*from  www . j a  v a 2  s  . com*/
    }
    ps.close();
    pig.registerFunction("foo", new FuncSpec(MyApply.class.getName() + "('foo')"));
    String query = "foreach (group (load '" + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + MyStorage.class.getName() + "()) by " + MyGroup.class.getName()
            + "('all')) generate flatten(foo($1)) ;";
    System.out.println(query);
    pig.registerQuery("asdf_id = " + query);
    Iterator it = pig.openIterator("asdf_id");
    tmpFile.delete();
    Tuple t;
    int count = 0;
    while (it.hasNext()) {
        t = (Tuple) it.next();
        assertEquals("foo", t.get(0).toString());
        Integer.parseInt(t.get(1).toString());
        count++;
    }
    assertEquals(count, MyStorage.COUNT);
}

---

From source file:org.apache.pig.test.TestLocal.java

License:asdf

public void definedFunctions(String[][] data) throws Throwable {

    File tmpFile = TestHelper.createTempFile(data);
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for (int i = 0; i < 1; i++) {
        ps.println(i);//from  ww  w  .j a  v a 2  s.  c  o  m
    }
    ps.close();
    pig.registerFunction("foo", new FuncSpec(MyApply.class.getName() + "('foo')"));
    String query = "foreach (group (load '" + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + MyStorage.class.getName() + "()) by " + MyGroup.class.getName()
            + "('all')) generate flatten(foo($1)) ;";
    System.out.println(query);
    pig.registerQuery("asdf_id = " + query);
    Iterator it = pig.openIterator("asdf_id");
    tmpFile.delete();
    Tuple t;
    int count = 0;
    while (it.hasNext()) {
        t = (Tuple) it.next();
        assertEquals("foo", t.get(0).toString());

        if (t.get(1).toString() != "") {
            Integer.parseInt(t.get(1).toString());
        }
        count++;
    }
    assertEquals(count, MyStorage.COUNT);
}

---

From source file:org.apache.pig.test.TestLocal.java

License:asdf

@Test
public void testQualifiedFunctions() throws Throwable {

    //create file
    File tmpFile = File.createTempFile("test", ".txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for (int i = 0; i < 1; i++) {
        ps.println(i);/*from   w  w w  . j a va 2  s .  c  o m*/
    }
    ps.close();

    // execute query
    String query = "foreach (group (load '" + Util.generateURI(tmpFile.toString(), pig.getPigContext())
            + "' using " + MyStorage.class.getName() + "()) by " + MyGroup.class.getName()
            + "('all')) generate flatten(" + MyApply.class.getName() + "($1)) ;";
    System.out.println(query);
    pig.registerQuery("asdf_id = " + query);

    //Verfiy query
    Iterator<Tuple> it = pig.openIterator("asdf_id");
    Tuple t;
    int count = 0;
    while (it.hasNext()) {
        t = it.next();
        assertEquals(t.get(0).toString(), "Got");
        Integer.parseInt(t.get(1).toString());
        count++;
    }

    assertEquals(MyStorage.COUNT, count);
    tmpFile.delete();
}

---

From source file:org.apache.hadoop.fs.dfsioe.TestDFSIOEnh.java

@Deprecated
protected static void analyzeResult(FileSystem fs, int testType, long execTime, String resFileName, int nrFiles,
        long fileSize, long tStart, int plotInterval, long sampleUnit, int threshold, String tputResFileName,
        boolean tputReportEach, boolean tputReportTotal) throws IOException {

    //the original report
    //TestDFSIO.analyzeResult(fs,testType,execTime,resFileName);

    long tasks = 0;
    long size = 0;
    long time = 0;
    float rate = 0;
    float sqrate = 0;

    Path reduceFile;/*from   w  ww  .  j av a 2s.c  om*/
    if (testType == TEST_TYPE_WRITE)
        reduceFile = new Path(DfsioeConfig.getInstance().getWriteDir(fsConfig), "part-00000");
    else
        reduceFile = new Path(DfsioeConfig.getInstance().getReadDir(fsConfig), "part-00000");

    //long time = 0;
    float loggingTime = 0;
    String line;
    ArrayList<String> wrSamples = new ArrayList<String>();

    int maxslot = (int) (execTime / plotInterval) + 1;
    int[] concurrency = new int[maxslot + 1];
    for (int i = 0; i < maxslot + 1; i++)
        concurrency[i] = 0;

    DataInputStream in = null;
    BufferedReader lines = null;
    try {
        in = new DataInputStream(fs.open(reduceFile));
        lines = new BufferedReader(new InputStreamReader(in));
        while ((line = lines.readLine()) != null) {
            StringTokenizer tokens = new StringTokenizer(line, " \t\n\r\f%");
            String attr = tokens.nextToken();
            if (attr.endsWith(":time")) {
                time = Long.parseLong(tokens.nextToken());
            } else if (attr.endsWith(":logging_time")) {
                loggingTime = Float.parseFloat(tokens.nextToken());
            } else if (attr.endsWith(":tput_samples")) {
                String[] tags = attr.split(":");
                wrSamples.add(tags[1]);
                wrSamples.add(tokens.nextToken());
            } else if (attr.endsWith(":io_start_end")) {
                String[] t = tokens.nextToken().split(";");
                int start = (int) ((Long.parseLong(t[0]) - tStart) / plotInterval) + 1;
                int end = (int) ((Long.parseLong(t[1]) - tStart) / plotInterval) - 1;
                if (start < 0)
                    start = 0;
                for (int i = start; i <= end; i++) {
                    if (i > concurrency.length - 1)
                        break;
                    concurrency[i]++;
                }
            } else if (attr.endsWith(":tasks")) {
                tasks = Long.parseLong(tokens.nextToken());
            } else if (attr.endsWith(":size")) {
                size = Long.parseLong(tokens.nextToken());
            } else if (attr.endsWith(":rate")) {
                rate = Float.parseFloat(tokens.nextToken());
            } else if (attr.endsWith(":sqrate")) {
                sqrate = Float.parseFloat(tokens.nextToken());
            }
        }
    } finally {
        if (in != null)
            in.close();
        if (lines != null)
            lines.close();
    }

    double med = rate / 1000 / tasks;
    double stdDev = Math.sqrt(Math.abs(sqrate / 1000 / tasks - med * med));
    String resultLines[] = { "----- TestDFSIO ----- : "
            + ((testType == TEST_TYPE_WRITE) ? "write" : (testType == TEST_TYPE_READ) ? "read" : "unknown"),
            "           Date & time: " + new Date(System.currentTimeMillis()),
            "       Number of files: " + tasks, "Total MBytes processed: " + size / MEGA,
            "     Throughput mb/sec: " + size * 1000.0 / (time * MEGA), "Average IO rate mb/sec: " + med,
            " IO rate std deviation: " + stdDev, "    Test exec time sec: " + (float) execTime / 1000, "" };

    String[] tputResultLines = analyzeTputSamples(wrSamples, nrFiles, fileSize, tStart, execTime, concurrency,
            plotInterval, sampleUnit, threshold, tputResFileName, tputReportTotal, tputReportEach);

    String enhResultLines[] = { "-- Extended Metrics --   : "
            + ((testType == TEST_TYPE_WRITE) ? "write" : (testType == TEST_TYPE_READ) ? "read" : "unknown"),
            "Result file name         : " + tputResFileName,
            "Sampling overhead        : " + (loggingTime / time) * 100 + "%",
            "Reference Start Time     : " + String.valueOf(tStart) };

    PrintStream res = new PrintStream(new FileOutputStream(new File(resFileName), true));

    for (int i = 0; i < resultLines.length; i++) {
        LOG.info(resultLines[i]);
        res.println(resultLines[i]);
    }

    for (int i = 0; i < enhResultLines.length; i++) {
        LOG.info(enhResultLines[i]);
        res.println(enhResultLines[i]);
    }

    for (int j = 0; j < tputResultLines.length; j++) {
        LOG.info(tputResultLines[j]);
        res.println(tputResultLines[j]);
    }
    res.close();
}

---

From source file:org.apache.hadoop.fs.dfsioe.TestDFSIOEnh.java

/**
 * Analyze Aggregated throughput samples.
 *///from w w w . ja  va2 s  . c o m
@Deprecated
protected static String[] analyzeTputSamples(ArrayList<String> wrSamples, int nrFiles, long fileSize,
        long tStart, long execTime, int[] concurrency, int plotInterval, long sampleUnit, int threshold,
        String tputResFile, boolean writeReportTotal, boolean writeReportEach) throws IOException {

    int maxslot = (int) (execTime / plotInterval) + 1;

    double[] bytesTotal = new double[maxslot + 1];
    double[] bytesChanged = new double[maxslot + 1];

    double[] resultValue = new double[maxslot + 1];
    int[] resultSample = new int[maxslot + 1];

    //initialize the arrays
    for (int i = 0; i <= maxslot; i++) {
        bytesTotal[i] = 0;
        bytesChanged[i] = 0;
    }

    for (int f = 0; f < nrFiles; f++) {
        // clear up the arrays
        for (int j = 0; j < maxslot + 1; j++) {
            resultValue[j] = 0;
            resultSample[j] = 0;
        }
        // add to interpolator
        LinearInterpolator processor = new LinearInterpolator();

        double min_timeSpot = Double.MAX_VALUE;
        double max_timeSpot = 0;
        for (int i = 0; i < wrSamples.size(); i += 2) {
            String wrFileName = wrSamples.get(i);
            if (!wrFileName.equals(getFileName(f)))
                continue;
            String sampleLog = wrSamples.get(i + 1);
            String[] samples = sampleLog.split(";");
            //collect the samples
            for (int j = 0; !samples[j].startsWith("EoR"); j++) {
                String[] items = samples[j].split(":");
                long timeStamp = Long.parseLong(items[0]);
                long bytes = Long.parseLong(items[1]);
                double timePassed = (timeStamp - tStart) / (double) plotInterval;
                if (timePassed > max_timeSpot)
                    max_timeSpot = timePassed;
                if (timePassed < min_timeSpot)
                    min_timeSpot = timePassed;
                processor.add((double) timePassed, (double) bytes);
            }
        }

        processor.add(0, 0);
        processor.add(maxslot + 0.1, fileSize);

        //get value for each time slot
        for (int k = 0; k <= maxslot; k++) {
            resultValue[k] = processor.get(k);
        }

        if (writeReportEach) {
            PrintStream res = new PrintStream(new FileOutputStream(
                    new File(tputResFile + "" + "test_io_" + String.valueOf(f) + ".csv"), true));
            for (int i = 0; i <= maxslot - 1; i++)
                bytesChanged[i] = resultValue[i + 1] - resultValue[i];
            bytesChanged[maxslot] = 0;
            for (int ri = 0; ri <= maxslot; ri++)
                res.println(ri + "," + resultValue[ri] / (double) sampleUnit + ","
                        + bytesChanged[ri] / (double) sampleUnit);
            res.close();
        }
        //add into total bytes
        for (int k = 0; k <= maxslot; k++)
            bytesTotal[k] += resultValue[k];
    }

    //change unit
    for (int i = 0; i <= maxslot; i++)
        bytesTotal[i] /= (double) sampleUnit;

    //calculate the aggregated throughput
    for (int i = 0; i <= maxslot - 1; i++)
        bytesChanged[i] = bytesTotal[i + 1] - bytesTotal[i];
    bytesChanged[maxslot] = 0;

    if (writeReportTotal) {
        PrintStream res = new PrintStream(new FileOutputStream(new File(tputResFile), true));
        for (int ri = 0; ri <= maxslot; ri++)
            res.println(ri + "," + bytesTotal[ri] + "," + bytesChanged[ri]);
        res.close();
    }

    String unit = "";
    if (sampleUnit == KILO)
        unit = "kb";
    else if (sampleUnit == MEGA)
        unit = "mb";
    else if (sampleUnit == 1)
        unit = "b";
    else if (sampleUnit == GIGA)
        unit = "gb";

    return calcSummary(bytesChanged, concurrency, threshold, unit);

}

---

From source file:org.apache.hadoop.mapreduce.jobhistory.TestHistoryViewerPrinter.java

private String run(HistoryViewerPrinter printer) throws Exception {
    ByteArrayOutputStream boas = new ByteArrayOutputStream();
    PrintStream out = new PrintStream(boas, true);
    printer.print(out);//from w  ww .  j  av  a 2 s.  c om
    out.close();
    String outStr = boas.toString("UTF-8");
    LOG.info("out = " + outStr);
    return outStr;
}

---

From source file:org.apache.pig.test.TestFilterOpNumeric.java

@Test
public void testNumericGte() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for (int i = 0; i < LOOP_COUNT; i++) {
        if (i % 5 == 0) {
            ps.println(i + ":" + (double) i);
        } else if (i % 3 == 0) {
            ps.println(i - 1 + ":" + (double) (i));
        } else {/*from   w  w  w  . ja  va 2 s  .  c o  m*/
            ps.println(i + 1 + ":" + (double) (i));
        }
    }
    ps.close();
    pig.registerQuery("A=load '" + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext()))
            + "' using " + PigStorage.class.getName() + "(':');");
    String query = "A = filter A by ($0 > $1 or $0 >= $1);";

    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while (it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertTrue(first.compareTo(second) >= 0);
    }
}

---

From source file:org.apache.pig.test.TestFilterOpNumeric.java

@Test
public void testNumericLte() throws Throwable {
    File tmpFile = File.createTempFile("test", "txt");
    PrintStream ps = new PrintStream(new FileOutputStream(tmpFile));
    for (int i = 0; i < LOOP_COUNT; i++) {
        if (i % 5 == 0) {
            ps.println(i + ":" + (double) i);
        } else if (i % 3 == 0) {
            ps.println(i - 1 + ":" + (double) (i));
        } else {/*w ww.j a v a  2s  .  c om*/
            ps.println(i + 1 + ":" + (double) (i));
        }
    }
    ps.close();
    pig.registerQuery("A=load '" + Util.encodeEscape(Util.generateURI(tmpFile.toString(), pig.getPigContext()))
            + "' using " + PigStorage.class.getName() + "(':') as (a: double, b:double);");
    String query = "A = filter A by ($0 <= $1 or $0 < $1);";

    log.info(query);
    pig.registerQuery(query);
    Iterator<Tuple> it = pig.openIterator("A");
    tmpFile.delete();
    while (it.hasNext()) {
        Tuple t = it.next();
        Double first = Double.valueOf(t.get(0).toString());
        Double second = Double.valueOf(t.get(1).toString());
        assertTrue(first.compareTo(second) <= 0);
    }
}

---

From source file:com.zhonghui.tool.controller.HttpClient.java

/**
 * HTTP Post???//  w  ww . j  a va2s .  co m
 *
 * @param connection 
 * @param message ???
 * @throws IOException
 */
private void requestServer(final URLConnection connection, String message, String encoder) throws Exception {
    PrintStream out = null;
    try {
        connection.connect();
        out = new PrintStream(connection.getOutputStream(), false, encoder);
        out.print(message);
        out.flush();
    } catch (Exception e) {
        throw e;
    } finally {
        if (null != out) {
            out.close();
        }
    }
}

---

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