Example usage for org.apache.commons.io.output NullOutputStream nullOutputStream

Introduction

In this page you can find the example usage for org.apache.commons.io.output NullOutputStream nullOutputStream.

Prototype

public static OutputStream nullOutputStream() 

Source Link

Document

Returns a new OutputStream which discards all bytes.

Usage

From source file:org.openestate.io.examples.OpenImmoWritingExample.java

/**
 * Start the example application.//from  w w  w .  j  ava  2 s  . c  o m
 *
 * @param args
 * command line arguments
 */
public static void main(String[] args) {
    // init logging
    PropertyConfigurator.configure(OpenImmoWritingExample.class.getResource(PACKAGE + "/log4j.properties"));

    // create an Openimmo object with some example data
    // this object corresponds to the <openimmo> root element in XML
    Openimmo openimmo = FACTORY.createOpenimmo();
    openimmo.setUebertragung(createUebertragung());
    openimmo.getAnbieter().add(createAnbieter());

    // convert the Openimmo object into a XML document
    OpenImmoTransferDocument doc = null;
    try {
        doc = OpenImmoTransferDocument.newDocument(openimmo);
    } catch (Exception ex) {
        LOGGER.error("Can't create XML document!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.File
    try {
        write(doc, File.createTempFile("output-", ".xml"));
    } catch (IOException ex) {
        LOGGER.error("Can't create temporary file!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.OutputStream
    write(doc, new NullOutputStream());

    // write XML document into a java.io.Writer
    write(doc, new NullWriter());

    // write XML document into a string and send it to the console
    writeToConsole(doc);

    // downgrade XML document to an earlier version
    // and write it to the console
    doc.downgrade(OpenImmoVersion.V1_2_3);
    writeToConsole(doc);

    // downgrade XML document to the first version
    // and write it to the console
    doc.downgrade(OpenImmoVersion.V1_1);
    writeToConsole(doc);
}

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From source file:org.openestate.io.examples.TrovitWritingExample.java

/**
 * Start the example application./*from ww  w  . j a  v a  2 s. c o m*/
 *
 * @param args
 * command line arguments
 */
public static void main(String[] args) {
    // init logging
    PropertyConfigurator.configure(TrovitWritingExample.class.getResource(PACKAGE + "/log4j.properties"));

    // create a Trovit object with some example data
    // this object corresponds to the <trovit> element in XML
    Trovit trovit = FACTORY.createTrovit();

    // append some example ads to the transfer
    trovit.getAd().add(createAd());
    trovit.getAd().add(createAd());
    trovit.getAd().add(createAd());

    // convert the Trovit object into a XML document
    TrovitDocument doc = null;
    try {
        doc = TrovitDocument.newDocument(trovit);
    } catch (Exception ex) {
        LOGGER.error("Can't create XML document!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.File
    try {
        write(doc, File.createTempFile("output-", ".xml"));
    } catch (IOException ex) {
        LOGGER.error("Can't create temporary file!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.OutputStream
    write(doc, new NullOutputStream());

    // write XML document into a java.io.Writer
    write(doc, new NullWriter());

    // write XML document into a string and send it to the console
    writeToConsole(doc);
}

---

From source file:org.openestate.io.examples.WisItWritingExample.java

/**
 * Start the example application./*from  w  w w  .java 2s.  c  o m*/
 *
 * @param args
 * command line arguments
 */
public static void main(String[] args) {
    // init logging
    PropertyConfigurator.configure(WisItWritingExample.class.getResource(PACKAGE + "/log4j.properties"));

    // create a WIS object with some example data
    // this object corresponds to the <WIS> element in XML
    WIS wis = FACTORY.createWIS();
    wis.setBENUTZER(FACTORY.createWISBENUTZER());
    wis.setOBJEKTE(FACTORY.createWISOBJEKTE());

    // append some example ads to the transfer
    wis.getOBJEKTE().getOBJEKT().add(createOBJEKT());
    wis.getOBJEKTE().getOBJEKT().add(createOBJEKT());
    wis.getOBJEKTE().getOBJEKT().add(createOBJEKT());
    wis.getOBJEKTE().setANZAHL(BigInteger.valueOf(wis.getOBJEKTE().getOBJEKT().size()));

    // convert the WIS object into a XML document
    WisItDocument doc = null;
    try {
        doc = WisItDocument.newDocument(wis);
    } catch (Exception ex) {
        LOGGER.error("Can't create XML document!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.File
    try {
        write(doc, File.createTempFile("output-", ".xml"));
    } catch (IOException ex) {
        LOGGER.error("Can't create temporary file!");
        LOGGER.error("> " + ex.getLocalizedMessage(), ex);
        System.exit(1);
    }

    // write XML document into a java.io.OutputStream
    write(doc, new NullOutputStream());

    // write XML document into a java.io.Writer
    write(doc, new NullWriter());

    // write XML document into a string and send it to the console
    writeToConsole(doc);
}

---

From source file:org.ovirt.api.metamodel.tests.JsonWriterTest.java

/**
 * Checks that one million of VMs can be serialized in a reasonable time and without exhausting the memory of the
 * virtual machine. Note that the test is currently disabled because if it fails it will block other tests, but it
 * is still useful to run it manually, so please don't remove it.
 *//*from   w w  w.java 2s.  c  om*/
@Test
@Ignore
public void testOneMillion() throws IOException {
    // Create a iterator that generates the objects:
    Iterator<V4Vm> infinite = new Iterator<V4Vm>() {
        private int count;

        @Override
        public boolean hasNext() {
            return count < 1_000_000;
        }

        @Override
        public V4Vm next() {
            // Note that these are extremely simple objects, they should probably be more complicated for this
            // test to be realistic:
            V4Vm object = vm().id(String.valueOf(count)).name("vm" + count)
                    .disks(disk().id("123").alias("disk1")).disks(disk().id("456").alias("disk2")).build();
            count++;
            return object;
        }
    };

    // Write the objects generated by the iterator to a null stream, so that the only work performed is creating
    // the objects and converting them to XML:
    long before = System.currentTimeMillis();
    try (JsonWriter writer = new JsonWriter(new NullOutputStream(), false)) {
        V4JsonVmWriter.writeMany(infinite, writer);
    }
    long after = System.currentTimeMillis();
    long elapsed = after - before;

    // Check if it took less than a minute (it should take much more less, approx 2s, but lets be
    // conservative:
    assertTrue(elapsed < 60_000_000);
}

---

From source file:org.ovirt.api.metamodel.tests.XmlWriterTest.java

/**
 * Checks that one million of VMs can be serialized in a reasonable time and without exhausting the memory of the
 * virtual machine. Note that the test is currently disabled because if it fails it will block other tests, but it
 * is still useful to run it manually, so please don't remove it.
 *///from  ww w  .java  2s  .co  m
@Test
@Ignore
public void testOneMillion() throws IOException {
    // Create a iterator that generates the objects:
    Iterator<V4Vm> infinite = new Iterator<V4Vm>() {
        private int count;

        @Override
        public boolean hasNext() {
            return count < 1_000_000;
        }

        @Override
        public V4Vm next() {
            // Note that these are extremely simple objects, they should probably be more complicated for this
            // test to be realistic:
            V4Vm object = vm().id(String.valueOf(count)).name("vm" + count)
                    .disks(disk().id("123").alias("disk1")).disks(disk().id("456").alias("disk2")).build();
            count++;
            return object;
        }
    };

    // Write the objects generated by the iterator to a null stream, so that the only work performed is creating
    // the objects and converting them to XML:
    long before = System.currentTimeMillis();
    try (XmlWriter writer = new XmlWriter(new NullOutputStream(), false)) {
        V4XmlVmWriter.writeMany(infinite, writer);
    }
    long after = System.currentTimeMillis();
    long elapsed = after - before;

    // Check if it took less than a minute (it should take much more less, approx 2s, but lets be
    // conservative:
    assertTrue(elapsed < 60_000_000);
}

---

From source file:org.paxle.crawler.LimitedRateCopierTest.java

public void testThreadedCopy() throws Exception {
    // FIXME if size is in the order of magnitude of limitKBps, this test works, but ...
    final int size = 1024 * 4; // ... try to increase this value ...
    final int threadNum = 4;
    final int limitKBps = 8; // ... and this one proportionally, and watch how it explodes :)

    final int expectedTime = size / 1024 * 1000 / limitKBps * threadNum;
    final ILimitedRateCopier lrc = null; // new LimitedRateCopier(limitKBps); 

    // System.out.println("expected time: " + expectedTime + " ms");

    final ArrayList<Thread> threads = new ArrayList<Thread>();
    final Object sync = new Object();
    for (int i = 0; i < threadNum; i++) {
        final int num = i;
        final InputStream zis = new NullInputStream(size);
        final OutputStream nos = new NullOutputStream();
        threads.add(new Thread() {
            {/*www  .j  a  v  a2s .com*/
                this.setName("Test-thread " + num);
            }

            @Override
            public void run() {
                try {
                    //   System.out.println("thread " + num + " syncing");
                    synchronized (sync) {
                        sync.wait();
                    }
                    //   System.out.println("thread " + num + " starts copying");

                    final long start = System.currentTimeMillis();
                    // lrc.copy(zis, nos, size);
                    final long end = System.currentTimeMillis();
                    /* XXX this is wrong, because every new thread gets less bandwidth One would have to pre-set the
                     * number of expected threads in the lrc for this to be correct
                    assertTrue(
                          String.format("%d: Threaded copying took %d ms but should have taken %d ms.", num, end - start, expectedTime),
                          expectedTime <= end - start);
                     */
                    //   System.out.println("thread " + num + " finished in " + (end - start) + " ms");
                } catch (Throwable e) {
                    e.printStackTrace();
                }
            }
        });
    }

    for (final Thread t : threads)
        t.start();
    Thread.sleep(10); // wait until all have started and are waiting on sync

    // System.out.println("notifying all");

    final long start = System.currentTimeMillis();
    synchronized (sync) {
        sync.notifyAll();
    }
    for (final Thread t : threads)
        t.join();
    final long end = System.currentTimeMillis();

    // System.out.println(String.format("Finished in %d ms", end - start));
    //      assertTrue(String.format("All %d threads took %d ms but should have taken %d ms.", threadNum, end - start, expectedTime),
    //            expectedTime <= end - start);
}

---

From source file:org.pentaho.reporting.platform.plugin.async.TestInterruptionInterceptionTest.java

@Test
public void testInterruptFlagProblem2() throws Exception {
    PentahoAsyncExecutionInterruptTest t1 = new PentahoAsyncExecutionInterruptTest();

    t1.before();//w  w w .  ja va  2s  . com
    t1.testInterrupt();
    t1.after();

    PdfReportUtil.createPDF(new MasterReport(), new NullOutputStream());
}

---

From source file:org.rhq.storage.installer.StorageInstaller.java

private String exec(File workingDir, org.apache.commons.exec.CommandLine cmdLine) throws Exception {
    Executor executor = new DefaultExecutor();
    org.apache.commons.io.output.ByteArrayOutputStream buffer = new org.apache.commons.io.output.ByteArrayOutputStream();
    NullOutputStream nullOs = new NullOutputStream();
    PumpStreamHandler streamHandler = new PumpStreamHandler(nullOs, buffer);
    executor.setWorkingDirectory(workingDir);
    executor.setStreamHandler(streamHandler);
    String result = "";

    try {/*from   w  w w.j  a va 2 s.  com*/
        exec(executor, cmdLine);
        result = buffer.toString();

    } finally {
        try {
            buffer.close();
            nullOs.close();
        } catch (Exception e) {
            // best effort
        }
    }

    return result;
}

---

From source file:org.robovm.eclipse.RoboVMPlugin.java

private static byte[] md5(InputStream in) throws IOException {
    MessageDigest digest;/* www .jav a 2s  .  c  om*/
    try {
        digest = MessageDigest.getInstance("md5");
    } catch (NoSuchAlgorithmException e) {
        throw new Error(e);
    }
    DigestInputStream dis = new DigestInputStream(in, digest);
    IOUtils.copy(dis, new NullOutputStream());
    return digest.digest();
}

---

From source file:org.roda_project.commons_ip.model.impl.eark.EARKAIP.java

private void writeFileToPath(final ZipEntryInfo zipEntryInfo, final Path outputPath, final boolean onlyMets)
        throws IOException, NoSuchAlgorithmException {
    InputStream is = null;/*from  ww  w .jav  a  2 s  .  c  o  m*/
    OutputStream os = null;
    try {

        is = Files.newInputStream(zipEntryInfo.getFilePath());

        if (!onlyMets || zipEntryInfo instanceof METSZipEntryInfo) {
            Files.createDirectories(outputPath.getParent());
            os = Files.newOutputStream(outputPath);
        } else {
            os = new NullOutputStream();
        }

        final byte[] buffer = new byte[4096];
        final MessageDigest complete = MessageDigest.getInstance(IPConstants.CHECKSUM_ALGORITHM);
        int numRead;
        do {
            numRead = is.read(buffer);
            if (numRead > 0) {
                complete.update(buffer, 0, numRead);
                if (!onlyMets || zipEntryInfo instanceof METSZipEntryInfo) {
                    os.write(buffer, 0, numRead);
                }
            }
        } while (numRead != -1);

        setChecksum(zipEntryInfo, DatatypeConverter.printHexBinary(complete.digest()),
                IPConstants.CHECKSUM_ALGORITHM);
    } finally {
        IOUtils.closeQuietly(is);
        IOUtils.closeQuietly(os);
    }
}

---

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