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.culturegraph.mf.flux.FlowTest.java

@Test
public void testCommandRegistration() {
    // all commands must properly load to print the help
    FluxProgramm.printHelp(new PrintStream(new NullOutputStream()));

}

From source file:org.datacleaner.result.save.AnalysisResultSaveHandler.java

/**
 * Gets a map of unsafe result elements, ie. elements that cannot be saved
 * because serialization fails.//from   w  w w  . j ava 2s .  c  om
 *
 * @return
 */
public Map<ComponentJob, AnalyzerResult> getUnsafeResultElements() {
    if (_unsafeResultElements == null) {
        _unsafeResultElements = new LinkedHashMap<>();
        final Map<ComponentJob, AnalyzerResult> resultMap = _analysisResult.getResultMap();
        for (final Entry<ComponentJob, AnalyzerResult> entry : resultMap.entrySet()) {
            final AnalyzerResult analyzerResult = entry.getValue();
            try {
                SerializationUtils.serialize(analyzerResult, new NullOutputStream());
            } catch (final SerializationException e) {
                _unsafeResultElements.put(entry.getKey(), analyzerResult);
            }
        }
    }
    return _unsafeResultElements;
}

From source file:org.dataconservancy.access.connector.AbstractConnectorIT.java

/**
 * Asserts that the supplied input stream has the expected fixity.
 *
 * @param expectedFixity the expected fixity value of the stream
 * @param in             the input stream
 * @throws java.security.NoSuchAlgorithmException
 * @throws IOException//from  ww  w.ja  v  a  2s.co m
 */
void assertFixtyDigestEqual(final DcsFixity expectedFixity, final InputStream in)
        throws NoSuchAlgorithmException, IOException {
    Assert.assertNotNull("Fixity must not be null", expectedFixity);
    Assert.assertNotNull("Inputstream must not be null", in);

    final StringBuilder actualDigest = new StringBuilder();
    final NullOutputStream nullOs = new NullOutputStream();
    final DigestNotificationOutputStream digestOut = new DigestNotificationOutputStream(nullOs,
            MessageDigest.getInstance(expectedFixity.getAlgorithm()), new DigestListener() {
                @Override
                public void notify(byte[] digestValue) throws IOException {
                    for (byte b : digestValue) {
                        actualDigest.append(String.format("%02x", b));
                    }

                }
            });

    IOUtils.copy(in, digestOut);
    digestOut.close();
    assertEquals(expectedFixity.getValue(), actualDigest.toString());
}

From source file:org.dataconservancy.access.connector.AbstractHttpConnectorTest.java

/**
 * Asserts that the supplied input stream has the expected fixity.
 *
 * @param expectedFixity the expected fixity value of the stream
 * @param in             the input stream
 * @throws java.security.NoSuchAlgorithmException
 * @throws IOException//w w w. j a  v a 2  s . co m
 */
void assertFixtyDigestEqual(final DcsFixity expectedFixity, final InputStream in)
        throws NoSuchAlgorithmException, IOException {
    assertNotNull("Fixity must not be null", expectedFixity);
    assertNotNull("Inputstream must not be null", in);

    final StringBuilder actualDigest = new StringBuilder();
    final NullOutputStream nullOs = new NullOutputStream();
    final DigestNotificationOutputStream digestOut = new DigestNotificationOutputStream(nullOs,
            MessageDigest.getInstance(expectedFixity.getAlgorithm()), new DigestListener() {
                @Override
                public void notify(byte[] digestValue) throws IOException {
                    for (byte b : digestValue) {
                        actualDigest.append(String.format("%02x", b));
                    }

                }
            });

    IOUtils.copy(in, digestOut);
    digestOut.close();
    assertEquals(expectedFixity.getValue(), actualDigest.toString());
}

From source file:org.dataconservancy.access.connector.DcsConnectorRequestThread.java

@Override
public void run() {
    super.run();//from  ww  w .  ja v a 2s . c  o  m

    if (connector == null) {
        throw new IllegalStateException("HttpClient must not be null.");
    }

    try {
        InputStream in = connector.getStream(url);
        if (consumeResponse) {
            IOUtils.copy(in, new NullOutputStream());
        }
    } catch (ClientProtocolException e) {
        try {
            cpeHandler.handleException(e);
        } catch (ClientProtocolException e1) {
            // don't care
        }
    } catch (IOException e) {
        try {
            ioeHandler.handleException(e);
        } catch (IOException e1) {
            // don't care
        }
    } catch (DcsConnectorFault e) {
        try {
            dcsFaultHandler.handleException(e);
        } catch (Throwable throwable) {
            // don't care
        }
    }
}

From source file:org.dataconservancy.access.connector.HttpClientRequestThread.java

@Override
public void run() {
    super.run();//w w w  . ja va  2s.  c  om

    if (client == null) {
        throw new IllegalStateException("HttpClient must not be null.");
    }

    try {
        InputStream in = client.execute(new HttpGet(url)).getEntity().getContent();
        if (consumeResponse) {
            IOUtils.copy(in, new NullOutputStream());
        }
    } catch (ClientProtocolException e) {
        try {
            cpeHandler.handleException(e);
        } catch (ClientProtocolException e1) {
            // don't care
        }
    } catch (IOException e) {
        try {
            ioeHandler.handleException(e);
        } catch (IOException e1) {
            // don't care
        }
    }
}

From source file:org.dataconservancy.access.connector.HttpDcsConnectorTest.java

/**
 * Here we properly perform the requests.  The first request is issued, and its response is exhausted by IOUtils
 * (the underlying connection is freed by reading the stream), and then perform the second request.
 *
 * @throws IOException// www .jav  a  2s.co m
 * @throws DcsClientFault
 * @throws SAXException
 */
@Test
public void testSingleConnectionReuseScenarioOk() throws IOException, DcsClientFault, SAXException {
    assertTrue(new File(entitiesDir, "test1.xml").exists());
    assertTrue(new File(entitiesDir, "test2.xml").exists());
    final InputStream stream = underTest.getStream(config.getAccessHttpUrl() + "/entity/test1");
    IOUtils.copy(stream, new NullOutputStream());
    underTest.getStream(config.getAccessHttpUrl() + "/entity/test2");
}

From source file:org.dataconservancy.access.connector.HttpDcsConnectorTest.java

@Test
public void testSearchGetStreamOk() throws DcsClientFault, IOException {
    final NullOutputStream nullOutputStream = new NullOutputStream();
    final Iterator<DcsEntity> result = underTest.search("this can be any query");
    int count = 0;
    while (result.hasNext()) {
        try {//ww w .j av a 2  s. co m
            final InputStream stream = underTest.getStream(result.next().getId()
                    .replace("http://localhost:8080", config.getAccessHttpUrl().toString()));
            assertNotNull(stream);
            // exhaust the stream to free up connection
            IOUtils.copy(stream, nullOutputStream);
            count++;
        } catch (DcsClientFault dcsClientFault) {
            //                log.debug(dcsClientFault.getMessage());
        } catch (IOException e) {
            //                log.debug(e.getMessage());
        }
    }

    assertEquals(126, count);
}

From source file:org.dataconservancy.dcs.lineage.http.support.RequestUtil.java

/**
 * Calculates a MD5 digest over the list of entity ids, suitable for use as an
 * ETag.  If the list is empty, {@code null} is returned.
 *
 * @param entityIds the entities//from w  ww  .  j  a v  a  2  s .c o m
 * @return the MD5 digest, or {@code null} if {@code entityIds} is empty.
 */
public static String calculateDigest(List<String> entityIds) {
    if (entityIds.isEmpty()) {
        return null;
    }

    NullOutputStream nullOut = new NullOutputStream();
    DigestOutputStream digestOut = null;

    try {
        digestOut = new DigestOutputStream(nullOut, MessageDigest.getInstance("MD5"));
        for (String id : entityIds) {
            IOUtils.write(id, digestOut);
        }
        digestOut.close();
    } catch (IOException e) {
        throw new RuntimeException(e.getMessage(), e);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e.getMessage(), e);
    }

    return digestToHexString(digestOut.getMessageDigest().digest());
}

From source file:org.dataconservancy.dcs.util.DigestNotificationStreamTest.java

@Test
public void listenerNotifiedOnceTest() throws IOException, NoSuchAlgorithmException {
    final AtomicInteger count = new AtomicInteger(0);
    final InputStream s = new DigestNotificationStream(new ByteArrayInputStream(CONTENT.getBytes()),
            MessageDigest.getInstance("MD5"), new DigestListener() {
                @Override/*from  www. ja va 2s.  c om*/
                public void notify(byte[] digestValue) throws IOException {
                    count.getAndIncrement();
                }
            });

    assertEquals(0, count.intValue());
    IOUtils.copy(s, new NullOutputStream());
    assertEquals(1, count.intValue());
    s.close();
    assertEquals(1, count.intValue());
}