Example usage for java.util.zip DeflaterOutputStream DeflaterOutputStream

Introduction

In this page you can find the example usage for java.util.zip DeflaterOutputStream DeflaterOutputStream.

Prototype

public DeflaterOutputStream(OutputStream out) 

Source Link

Document

Creates a new output stream with a default compressor and buffer size.

Usage

From source file:org.fejoa.library.messages.ZipEnvelope.java

static public byte[] zip(byte[] data, boolean isRawData) throws JSONException, IOException {
    JSONObject object = new JSONObject();
    object.put(Envelope.PACK_TYPE_KEY, ZIP_TYPE);
    if (isRawData)
        object.put(Envelope.CONTAINS_DATA_KEY, 1);
    object.put(ZIP_FORMAT_KEY, ZIP_FORMAT);
    String header = object.toString() + "\n";

    ByteArrayOutputStream outStream = new ByteArrayOutputStream();
    outStream.write(header.getBytes());//from  w w  w  .  j a v a  2  s . c o m
    DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(outStream);
    deflaterOutputStream.write(data);
    deflaterOutputStream.finish();
    outStream.close();
    return outStream.toByteArray();
}

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From source file:org.openmrs.module.shr.contenthandler.api.ContentTest.java

private static byte[] compressZLib(String content) throws IOException {
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    DeflaterOutputStream zlibOut = new DeflaterOutputStream(out);
    zlibOut.write(content.getBytes());/*  w  w w.j ava 2 s .c o  m*/
    IOUtils.closeQuietly(zlibOut);
    return out.toByteArray();
}

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From source file:org.eclipse.gyrex.jobs.internal.worker.JobInfo.java

public static byte[] asMessage(final JobInfo info) throws IOException {
    final Properties properties = new Properties();

    // collect properties
    final Map<String, String> jobProperties = info.getJobProperties();
    for (final Entry<String, String> entry : jobProperties.entrySet()) {
        properties.put(entry.getKey(), entry.getValue());
    }//from  w w  w.ja  v a  2 s . c o  m

    // put properties
    try {
        properties.put(VERSION, VERSION_VALUE);
        properties.put(ID, info.getJobId());
        properties.put(TYPE_ID, info.getJobTypeId());
        properties.put(CONTEXT_PATH, info.getContextPath().toString());
        properties.put(QUEUE_TRIGGER, info.getQueueTrigger());
        properties.put(QUEUE_TIMESTAMP, String.valueOf(info.getQueueTimestamp()));
        properties.put(LAST_SUCCESSFUL_START, String.valueOf(info.getLastSuccessfulStart()));
        if (StringUtils.isNotBlank(info.getScheduleInfo())) {
            properties.put(SCHEDULE_INFO, info.getScheduleInfo());
        }
    } catch (final NullPointerException e) {
        // we tried to put null into the properties map
        throw new IllegalArgumentException(String.format("Invalid job info: %s", info));
    }

    // create bytes
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    try (final DeflaterOutputStream df = new DeflaterOutputStream(out)) {
        properties.store(df, null);
    }
    return out.toByteArray();
}

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From source file:org.jasig.cas.authentication.principal.GoogleAccountsServiceTests.java

protected static String encodeMessage(final String xmlString) throws IOException {
    byte[] xmlBytes = xmlString.getBytes("UTF-8");
    ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
    DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteOutputStream);
    deflaterOutputStream.write(xmlBytes, 0, xmlBytes.length);
    deflaterOutputStream.close();/*  w  w w.  java 2 s  .c  om*/

    // next, base64 encode it
    Base64 base64Encoder = new Base64();
    byte[] base64EncodedByteArray = base64Encoder.encode(byteOutputStream.toByteArray());
    return new String(base64EncodedByteArray);
}

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From source file:org.nickelproject.util.IoUtil.java

/**
 * Compress the given byte array using the deflate algorithm and return the
 * compressed byte array./*  www.  java 2  s  .  c  om*/
 */
public static byte[] deflate(final byte[] pInput) throws IOException {
    final ByteArrayOutputStream vByteArrayStream = new ByteArrayOutputStream(pInput.length);
    final OutputStream vDeflaterStream = new DeflaterOutputStream(vByteArrayStream);
    vDeflaterStream.write(pInput);
    vDeflaterStream.close();
    final byte[] vCompressedBytes = vByteArrayStream.toByteArray();
    return vCompressedBytes;
}

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From source file:com.moesol.keys.EncodeUidsTest.java

private OutputStream makeCompressStream(OutputStream out) throws IOException {
    return new DeflaterOutputStream(out);
    //      return new GZIPOutputStream(out);
}

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From source file:com.faceye.feature.util.http.DeflateUtils.java

/**
 * Returns a deflated copy of the input array.
 *///from w  w  w  . ja  v a  2 s .  c om
public static final byte[] deflate(byte[] in) {
    // compress using DeflaterOutputStream 
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream(in.length / EXPECTED_COMPRESSION_RATIO);

    DeflaterOutputStream outStream = new DeflaterOutputStream(byteOut);

    try {
        outStream.write(in);
    } catch (Exception e) {
        LOG.error("Error compressing: ", e);
    }

    try {
        outStream.close();
    } catch (IOException e) {
        LOG.error("Error closing: ", e);
    }

    return byteOut.toByteArray();
}

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From source file:org.bimserver.plugins.classloaders.JarClassLoader.java

private void addDataToMap(JarInputStream jarInputStream, JarEntry entry) throws IOException {
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream);
    IOUtils.copy(jarInputStream, deflaterOutputStream);
    deflaterOutputStream.finish();//from   w w w  .ja  v a2 s.c  o m
    map.put(entry.getName(), byteArrayOutputStream.toByteArray());
}

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From source file:com.iflytek.spider.util.DeflateUtils.java

/**
 * Returns a deflated copy of the input array.
 *///w  w w. j  av a2 s. co m
public static final byte[] deflate(byte[] in) {
    // compress using DeflaterOutputStream 
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream(in.length / EXPECTED_COMPRESSION_RATIO);

    DeflaterOutputStream outStream = new DeflaterOutputStream(byteOut);

    try {
        outStream.write(in);
    } catch (Exception e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
    }

    try {
        outStream.close();
    } catch (IOException e) {
        e.printStackTrace(LogUtil.getWarnStream(LOG));
    }

    return byteOut.toByteArray();
}

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From source file:org.taverna.server.master.common.Workflow.java

@Override
public void writeExternal(ObjectOutput out) throws IOException {
    try {/*w ww .j  a  va2s  . c  o  m*/
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        OutputStreamWriter w = new OutputStreamWriter(new DeflaterOutputStream(baos), ENCODING);
        marshaller.marshal(this, w);
        w.close();
        byte[] bytes = baos.toByteArray();
        out.writeInt(bytes.length);
        out.write(bytes);
    } catch (JAXBException e) {
        throw new IOException("failed to marshal", e);
    }
}

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