Example usage for java.io ByteArrayOutputStream reset

Introduction

In this page you can find the example usage for java.io ByteArrayOutputStream reset.

Prototype

public synchronized void reset() 

Source Link

Document

Resets the count field of this ByteArrayOutputStream to zero, so that all currently accumulated output in the output stream is discarded.

Usage

From source file:org.apache.fop.pdf.PDFNameTestCase.java

/**
 * Test outputInline() - this writes the object reference if it is a direct object (has an
 * object number), or writes the String representation if there is no object number.
 *///from  ww w  . j  ava2 s  . c o m
@Test
public void testOutputInline() {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    CountingOutputStream cout = new CountingOutputStream(outStream);
    StringBuilder textBuffer = new StringBuilder();
    try {
        // test with no object number set.
        pdfName.outputInline(outStream, textBuffer);
        PDFDocument.flushTextBuffer(textBuffer, cout);
        assertEquals("/TestName", outStream.toString());

        outStream.reset();
        // test with object number set
        pdfName.setObjectNumber(1);
        pdfName.outputInline(outStream, textBuffer);
        PDFDocument.flushTextBuffer(textBuffer, cout);
        assertEquals("1 0 R", outStream.toString());
    } catch (IOException e) {
        fail("IOException: " + e.getMessage());
    }
}

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From source file:org.apache.pdfbox.filter.LZWFilter.java

/**
 * {@inheritDoc}//from  www  .ja  v  a  2s .co  m
 */
@Override
public DecodeResult decode(InputStream encoded, OutputStream decoded, COSDictionary parameters, int index)
        throws IOException {
    int predictor = -1;
    int earlyChange = 1;

    COSDictionary decodeParams = getDecodeParams(parameters, index);
    if (decodeParams != null) {
        predictor = decodeParams.getInt(COSName.PREDICTOR);
        earlyChange = decodeParams.getInt(COSName.EARLY_CHANGE, 1);
        if (earlyChange != 0 && earlyChange != 1) {
            earlyChange = 1;
        }
    }
    if (predictor > 1) {
        @SuppressWarnings("null")
        int colors = Math.min(decodeParams.getInt(COSName.COLORS, 1), 32);
        int bitsPerPixel = decodeParams.getInt(COSName.BITS_PER_COMPONENT, 8);
        int columns = decodeParams.getInt(COSName.COLUMNS, 1);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        doLZWDecode(encoded, baos, earlyChange);
        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
        Predictor.decodePredictor(predictor, colors, bitsPerPixel, columns, bais, decoded);
        decoded.flush();
        baos.reset();
        bais.reset();
    } else {
        doLZWDecode(encoded, decoded, earlyChange);
    }
    return new DecodeResult(parameters);
}

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From source file:inti.core.codec.base64.Base64OutputStreamPerformanceTest.java

public void writePerformance(int count, int bufferSize) throws Exception {
    ByteArrayOutputStream underlying = new ByteArrayOutputStream(bufferSize);
    byte[] data;// w w w  . jav a2s .c om
    long start, end;
    Base64 b64 = new Base64();
    StringBuilder message = new StringBuilder();

    for (int i = 0; i < bufferSize / 10; i++) {
        message.append("0123456789");
    }
    data = message.toString().getBytes(Charset.forName("utf-8"));

    output.reset(underlying, null);

    for (int i = 0; i < 10; i++) {
        underlying.reset();
        output.write(data);
        output.flush();
    }

    for (int i = 0; i < 100; i++) {
        Thread.sleep(10);
    }

    start = System.currentTimeMillis();
    for (int i = 0; i < count; i++) {
        underlying.reset();
        output.write(data);
        output.flush();
    }
    end = System.currentTimeMillis();

    System.out.format("writePerformance(Inti) - size: %d, duration: %dms, ratio: %#.4f", bufferSize,
            end - start, count / ((end - start) / 1000.0));
    System.out.println();

    for (int i = 0; i < 10; i++) {
        b64.encode(data);
    }

    for (int i = 0; i < 100; i++) {
        Thread.sleep(10);
    }

    start = System.currentTimeMillis();
    for (int i = 0; i < count; i++) {
        b64.encode(data);
    }
    end = System.currentTimeMillis();
    System.out.format("writePerformance(commons.codec) - size: %d, duration: %dms, ratio: %#.4f", bufferSize,
            end - start, count / ((end - start) / 1000.0));
    System.out.println();
}

---

From source file:org.jenkinsci.plugins.docker.commons.tools.DockerToolInstallerTest.java

@Issue({ "JENKINS-36082", "JENKINS-32790" })
@Test/*from   ww w.j av  a 2 s .com*/
public void smokes() throws Exception {
    try {
        new URL("https://get.docker.com/").openStream().close();
    } catch (IOException x) {
        Assume.assumeNoException("Cannot contact get.docker.com, perhaps test machine is not online", x);
    }
    r.jenkins.getDescriptorByType(DockerTool.DescriptorImpl.class).setInstallations(
            new DockerTool("latest", "",
                    Collections.singletonList(new InstallSourceProperty(
                            Collections.singletonList(new DockerToolInstaller("", "latest"))))),
            new DockerTool("1.10.0", "", Collections.singletonList(new InstallSourceProperty(
                    Collections.singletonList(new DockerToolInstaller("", "1.10.0"))))));
    DumbSlave slave = r.createOnlineSlave();
    FilePath toolDir = slave.getRootPath().child("tools/org.jenkinsci.plugins.docker.commons.tools.DockerTool");
    FilePath exe10 = toolDir.child("1.10.0/bin/docker");
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    TaskListener l = new StreamTaskListener(new TeeOutputStream(baos, System.err));
    // Download 1.10.0 for first time:
    assertEquals(exe10.getRemote(), DockerTool.getExecutable("1.10.0", slave, l, null));
    assertTrue(exe10.exists());
    assertThat(baos.toString(),
            containsString(Messages.DockerToolInstaller_downloading_docker_client_("1.10.0")));
    // Next time we do not need to download:
    baos.reset();
    assertEquals(exe10.getRemote(), DockerTool.getExecutable("1.10.0", slave, l, null));
    assertTrue(exe10.exists());
    assertThat(baos.toString(),
            not(containsString(Messages.DockerToolInstaller_downloading_docker_client_("1.10.0"))));
    // Download latest for the first time:
    baos.reset();
    FilePath exeLatest = toolDir.child("latest/bin/docker");
    assertEquals(exeLatest.getRemote(), DockerTool.getExecutable("latest", slave, l, null));
    assertTrue(exeLatest.exists());
    assertThat(baos.toString(),
            containsString(Messages.DockerToolInstaller_downloading_docker_client_("latest")));
    // Next time we do not need to download:
    baos.reset();
    assertEquals(exeLatest.getRemote(), DockerTool.getExecutable("latest", slave, l, null));
    assertTrue(exeLatest.exists());
    assertThat(baos.toString(),
            not(containsString(Messages.DockerToolInstaller_downloading_docker_client_("latest"))));
    assertThat("we do not have any extra files in here", toolDir.list("**"), arrayContainingInAnyOrder(exe10,
            toolDir.child("1.10.0/.timestamp"), exeLatest, toolDir.child("latest/.timestamp")));
}

---

From source file:org.eclipse.dawnsci.analysis.api.metadata.Metadata.java

@Override
public IMetadata clone() {
    Metadata c = null;/*w  ww . java  2 s .c o  m*/
    try {
        c = (Metadata) super.clone();
        if (metadata != null) {
            HashMap<String, Serializable> md = new HashMap<String, Serializable>();
            c.metadata = md;
            ByteArrayOutputStream os = new ByteArrayOutputStream(512);
            for (String k : metadata.keySet()) {
                Serializable v = metadata.get(k);
                if (v != null) {
                    SerializationUtils.serialize(v, os);
                    Serializable nv = (Serializable) SerializationUtils.deserialize(os.toByteArray());
                    os.reset();
                    md.put(k, nv);
                } else {
                    md.put(k, null);
                }
            }
        }
        c.shapes = new HashMap<String, int[]>(1);
        for (Entry<String, int[]> e : shapes.entrySet()) {
            int[] s = e.getValue();
            c.shapes.put(e.getKey(), s == null ? null : s.clone());
        }
    } catch (CloneNotSupportedException e) {
        // Allowed for some objects not to be cloned.
    } catch (Throwable e) {
        if (e instanceof ClassNotFoundException) {
            // Fix to http://jira.diamond.ac.uk/browse/SCI-1644
            // Happens when cloning meta data with GridPreferences
        }
        if (e instanceof RuntimeException) {
            throw (RuntimeException) e;
        }
    }
    return c;
}

---

From source file:J2MEWriteReadMixedDataTypesExample.java

public void commandAction(Command command, Displayable displayable) {
    if (command == exit) {
        destroyApp(true);/*from  w w w  . j a  va2 s. c o m*/
        notifyDestroyed();
    } else if (command == start) {
        try {
            recordstore = RecordStore.openRecordStore("myRecordStore", true);
            byte[] outputRecord;
            String outputString = "First Record";
            int outputInteger = 15;
            boolean outputBoolean = true;
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            DataOutputStream outputDataStream = new DataOutputStream(outputStream);
            outputDataStream.writeUTF(outputString);
            outputDataStream.writeBoolean(outputBoolean);
            outputDataStream.writeInt(outputInteger);
            outputDataStream.flush();
            outputRecord = outputStream.toByteArray();
            recordstore.addRecord(outputRecord, 0, outputRecord.length);
            outputStream.reset();
            outputStream.close();
            outputDataStream.close();
            String inputString = null;
            int inputInteger = 0;
            boolean inputBoolean = false;
            byte[] byteInputData = new byte[100];
            ByteArrayInputStream inputStream = new ByteArrayInputStream(byteInputData);
            DataInputStream inputDataStream = new DataInputStream(inputStream);
            for (int x = 1; x <= recordstore.getNumRecords(); x++) {
                recordstore.getRecord(x, byteInputData, 0);
                inputString = inputDataStream.readUTF();
                inputBoolean = inputDataStream.readBoolean();
                inputInteger = inputDataStream.readInt();
                inputStream.reset();
            }
            inputStream.close();
            inputDataStream.close();
            alert = new Alert("Reading", inputString + " " + inputInteger + " " + inputBoolean, null,
                    AlertType.WARNING);
            alert.setTimeout(Alert.FOREVER);
            display.setCurrent(alert);
            recordstore.closeRecordStore();
            if (RecordStore.listRecordStores() != null) {
                RecordStore.deleteRecordStore("myRecordStore");
            }
        } catch (Exception error) {
            alert = new Alert("Error Removing", error.toString(), null, AlertType.WARNING);
            alert.setTimeout(Alert.FOREVER);
            display.setCurrent(alert);
        }
    }
}

---

From source file:com.vmware.vhadoop.vhm.hadoop.HadoopAdaptor.java

private int executeScriptWithCopyRetryOnFailure(HadoopConnection connection, String scriptFileName,
        String[] scriptArgs, ByteArrayOutputStream out) {
    int rc = -1;//from   ww  w. j a  v a2  s  .  c  o  m
    for (int i = 0; i < 2; i++) {
        /* ensure that we're operating with a clean output buffer */
        out.reset();

        rc = connection.executeScript(scriptFileName, JOB_TRACKER_DEFAULT_SCRIPT_DEST_PATH, scriptArgs, out);
        if (i == 0 && (rc == ERROR_COMMAND_NOT_FOUND || rc == ERROR_CATCHALL)) {
            _log.log(Level.INFO, scriptFileName + " not found...");
            // Changed this to accommodate using jar file...
            // String fullLocalPath = HadoopAdaptor.class.getClassLoader().getResource(scriptFileName).getPath();
            // byte[] scriptData = loadLocalScript(DEFAULT_SCRIPT_SRC_PATH + scriptFileName);
            // byte[] scriptData = loadLocalScript(fullLocalPath);
            byte[] scriptData = loadLocalScript(scriptFileName);
            if ((scriptData != null) && (connection.copyDataToJobTracker(scriptData,
                    JOB_TRACKER_DEFAULT_SCRIPT_DEST_PATH, scriptFileName, true) == 0)) {
                continue;
            }
        }
        break;
    }
    return rc;
}

---

From source file:hudson.Util.java

/**
 * Escapes non-ASCII characters in URL.//ww w .  j a v a2 s . co m
 *
 * <p>
 * Note that this methods only escapes non-ASCII but leaves other URL-unsafe characters,
 * such as '#'.
 * {@link #rawEncode(String)} should generally be used instead, though be careful to pass only
 * a single path component to that method (it will encode /, but this method does not).
 */
public static String encode(String s) {
    try {
        boolean escaped = false;

        StringBuilder out = new StringBuilder(s.length());

        ByteArrayOutputStream buf = new ByteArrayOutputStream();
        OutputStreamWriter w = new OutputStreamWriter(buf, "UTF-8");

        for (int i = 0; i < s.length(); i++) {
            int c = (int) s.charAt(i);
            if (c < 128 && c != ' ') {
                out.append((char) c);
            } else {
                // 1 char -> UTF8
                w.write(c);
                w.flush();
                for (byte b : buf.toByteArray()) {
                    out.append('%');
                    out.append(toDigit((b >> 4) & 0xF));
                    out.append(toDigit(b & 0xF));
                }
                buf.reset();
                escaped = true;
            }
        }

        return escaped ? out.toString() : s;
    } catch (IOException e) {
        throw new Error(e); // impossible
    }
}

---

From source file:edu.vt.middleware.crypt.KeyStoreCliTest.java

/**
 * @param  keyStore  Keystore file./*w w  w.  ja v a 2s  .  c om*/
 * @param  storeType  Keystore type. Uses default type if null.
 * @param  cert  Certificate file.
 * @param  privKey  Private key file.
 * @param  keyAlg  Key algorithm name. Uses default key type if null.
 * @param  alias  Alias of keypair inside keystore.
 *
 * @throws  Exception  On test failure.
 */
@Test(groups = { "cli", "keystore" }, dataProvider = "keypairdata")
public void testImportExportKeyPair(final String keyStore, final String storeType, final String cert,
        final String privKey, final String keyAlg, final String alias) throws Exception {
    new File(TEST_OUTPUT_DIR).mkdir();

    final PrintStream oldStdOut = System.out;
    final String keyStorePath = TEST_OUTPUT_DIR + keyStore;
    final String exportCertPath = TEST_OUTPUT_DIR + keyStore + "." + cert;
    final String exportKeyPath = TEST_OUTPUT_DIR + keyStore + "." + privKey;

    final OptionData keyStoreOption = new OptionData("keystore", keyStorePath);
    final OptionData storeTypeOption = storeType == null ? null : new OptionData("storetype", storeType);
    final OptionData storePassOption = new OptionData("storepass", "changeit");
    final OptionData keyAlgOption = keyAlg == null ? null : new OptionData("keyalg", keyAlg);
    final OptionData aliasOption = new OptionData("alias", alias);

    final OptionData[] listOptions = new OptionData[] { new OptionData("list"), keyStoreOption, storeTypeOption,
            storePassOption, };
    final OptionData[] importOptions = new OptionData[] { new OptionData("import"), keyStoreOption,
            storeTypeOption, storePassOption, new OptionData("cert", KEY_DIR_PATH + cert),
            new OptionData("key", KEY_DIR_PATH + privKey), keyAlgOption, aliasOption, };
    final OptionData[] exportOptions = new OptionData[] { new OptionData("export"), keyStoreOption,
            storeTypeOption, storePassOption, new OptionData("cert", exportCertPath),
            new OptionData("key", exportKeyPath), keyAlgOption, aliasOption, };
    try {
        final ByteArrayOutputStream outStream = new ByteArrayOutputStream();
        System.setOut(new PrintStream(outStream));

        logger.info(
                "Importing keypair into keystore with command line " + CliHelper.toCommandLine(importOptions));
        KeyStoreCli.main(CliHelper.toArgs(importOptions));
        AssertJUnit.assertTrue(new File(keyStorePath).exists());

        // Verify imported entry is present when we list contents
        outStream.reset();
        KeyStoreCli.main(CliHelper.toArgs(listOptions));

        final String output = outStream.toString();
        logger.info("Keystore listing output:\n" + output);
        AssertJUnit.assertTrue(output.indexOf(alias) != -1);

        outStream.reset();

        logger.info(
                "Exporting keypair from keystore with command line " + CliHelper.toCommandLine(exportOptions));
        KeyStoreCli.main(CliHelper.toArgs(exportOptions));
        AssertJUnit.assertTrue(new File(exportCertPath).exists());
        AssertJUnit.assertTrue(new File(exportKeyPath).exists());
    } finally {
        // Restore STDOUT
        System.setOut(oldStdOut);
    }
}

---

From source file:org.jahia.utils.migration.Migrators.java

public List<String> migrate(InputStream inputStream, OutputStream outputStream, String filePath,
        Version fromVersion, Version toVersion, boolean performModification) {
    List<String> messages = new ArrayList<String>();
    for (Migration migration : migrationsConfig.getMigrations()) {
        if (migration.getFromVersion().equals(fromVersion) && migration.getToVersion().equals(toVersion)) {
            for (MigrationResource migrationResource : migration.getMigrationResources()) {
                Matcher resourcePatternMatcher = migrationResource.getCompiledPattern().matcher(filePath);
                if (resourcePatternMatcher.matches()) {
                    // we use byte array input and output stream to be able to iterate over the contents multiple times, feeding in the result of the last iteration into the next.
                    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                    try {
                        IOUtils.copyLarge(inputStream, byteArrayOutputStream);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }/*from  ww w. j  av  a2 s  . c  om*/
                    byte[] inputByteArray = byteArrayOutputStream.toByteArray();
                    ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(inputByteArray);
                    byteArrayOutputStream.reset();
                    for (MigrationOperation migrationOperation : migrationResource.getOperations()) {
                        messages.addAll(migrationOperation.execute(byteArrayInputStream, byteArrayOutputStream,
                                filePath, performModification));
                        byteArrayInputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
                        byteArrayOutputStream.reset();
                    }
                    try {
                        IOUtils.copyLarge(byteArrayInputStream, outputStream);
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
    return messages;
}

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