Example usage for java.util.zip Deflater setInput

Introduction

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

Prototype

public void setInput(ByteBuffer input) 

Source Link

Document

Sets input data for compression.

Usage

From source file:Main.java

public static byte[] compress(byte[] data, int level) throws IOException {
    if (data == null || data.length == 0) {
        return data;
    }// w  ww . java2 s  .c  o m
    ByteArrayOutputStream bout = new ByteArrayOutputStream(data.length);
    Deflater deflater = new Deflater();
    deflater.setLevel(level);
    deflater.setInput(data);
    deflater.finish();
    byte[] buf = new byte[BUFFER_SIZE];
    while (!deflater.finished()) {
        int count = deflater.deflate(buf);
        bout.write(buf, 0, count);
    }
    deflater.end();
    bout.close();
    return bout.toByteArray();
}

---

From source file:Main.java

public static byte[] compress(byte[] data) throws IOException {
    Deflater compresser = new Deflater(Deflater.BEST_COMPRESSION);
    compresser.setInput(data);
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length);
    compresser.finish();//w  w  w.j  av  a  2 s. c o m
    byte[] buffer = new byte[1024];
    while (!compresser.finished()) {
        int count = compresser.deflate(buffer);
        outputStream.write(buffer, 0, count);
    }
    compresser.end();
    outputStream.close();
    return outputStream.toByteArray();
}

---

From source file:Main.java

private static byte[] compressBytesInflateDeflate(byte[] inBytes) {
    Deflater deflater = new Deflater(Deflater.BEST_SPEED);
    deflater.setInput(inBytes);
    ByteArrayOutputStream bos = new ByteArrayOutputStream(inBytes.length);
    deflater.finish();/*from  ww w  . ja  v  a 2 s. co m*/
    byte[] buffer = new byte[1024 * 8];
    while (!deflater.finished()) {
        int count = deflater.deflate(buffer);
        bos.write(buffer, 0, count);
    }
    byte[] output = bos.toByteArray();
    return output;
}

---

From source file:Main.java

public static byte[] zipCompress(byte[] input, int level) {
    Deflater compressor = new Deflater();
    compressor.setLevel(level);/*from  www . j  a  v  a 2  s  . c  o  m*/
    compressor.setInput(input);
    compressor.finish();
    ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);
    byte[] buf = new byte[1024];
    while (!compressor.finished()) {
        int count = compressor.deflate(buf);
        bos.write(buf, 0, count);
    }
    try {
        bos.close();
    } catch (IOException e) {
    }
    return bos.toByteArray();
}

---

From source file:org.xdi.zip.CompressionHelper.java

public static byte[] deflate(byte[] data, boolean nowrap) throws IOException {
    Deflater deflater = new Deflater(Deflater.DEFAULT_COMPRESSION, nowrap);
    deflater.setInput(data);
    deflater.finish();//from w ww . j  a  v  a  2s .c  om

    ByteArrayOutputStream os = new ByteArrayOutputStream();

    try {
        byte[] buffer = new byte[1024];
        while (!deflater.finished()) {
            int count = deflater.deflate(buffer);
            os.write(buffer, 0, count);
        }
    } finally {
        IOUtils.closeQuietly(os);
    }

    return os.toByteArray();
}

---

From source file:org.odk.collect.android.utilities.CompressionUtils.java

public static String compress(String data) throws IOException {
    if (data == null || data.length() == 0) {
        return data;
    }/*w  w w . ja va 2  s . c  o  m*/

    // Encode string into bytes
    byte[] input = data.getBytes("UTF-8");

    Deflater deflater = new Deflater();
    deflater.setInput(input);

    // Compress the bytes
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length());
    deflater.finish();
    byte[] buffer = new byte[1024];
    while (!deflater.finished()) {
        int count = deflater.deflate(buffer); // returns the generated code... index
        outputStream.write(buffer, 0, count);
    }
    outputStream.close();
    byte[] output = outputStream.toByteArray();

    // Encode to base64
    String base64String = Base64.encodeBase64String(output);
    Timber.i("Original : %d", data.length());
    Timber.i("Compressed : %d", base64String.length());
    Timber.i("Compression ratio : %2f", ((data.length() * 1.0) / base64String.length()) * 100);
    return base64String;
}

---

From source file:org.samlsnort.util.EncodingTool.java

public static String deflateToBase64(String inflated) {

    Deflater deflater = new Deflater(Deflater.DEFLATED, true);
    deflater.setInput(inflated.getBytes(CHARSET));
    deflater.finish();//from w  w w. j  a v  a2  s  .c  om
    byte[] deflatedBytes = new byte[2048];
    int len = deflater.deflate(deflatedBytes);
    return new String(Base64.encodeBase64(Arrays.copyOf(deflatedBytes, len)), CHARSET);
}

---

From source file:Main.java

public static byte[] Compress(String text) throws Exception {
    Deflater compressor = new Deflater();
    byte[] bytes = text.getBytes("UTF-16LE");
    compressor.setInput(bytes);

    // Create an expandable byte array to hold the compressed data
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    compressor.finish();//from   w ww.  j a  v  a2s .co  m

    byte[] buffer = new byte[1024];
    try {
        while (!compressor.finished()) {
            int count = compressor.deflate(buffer);
            bos.write(buffer, 0, count);
        }
    } finally {
        compressor.finish();
    }

    bos.close();
    return bos.toByteArray();
}

---

From source file:Main.java

/**
 * DEFLATEs the specified input data./*  w ww  . jav a  2 s  .c  o m*/
 * 
 * @param data the input data
 * @param dictionary the dictionary, or null if none
 * @return the compressed data
 */
public static byte[] deflate(byte[] data, byte[] dictionary) {
    Deflater deflater = new Deflater(8, true);
    if (dictionary != null) {
        deflater.setDictionary(dictionary);
    }
    deflater.setInput(data);
    deflater.finish();
    ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    byte[] buffer = new byte[256];
    while (!deflater.finished()) {
        int n = deflater.deflate(buffer);
        byteArrayOutputStream.write(buffer, 0, n);
    }
    byte[] result = byteArrayOutputStream.toByteArray();
    return result;
}

---

From source file:Main.java

public static byte[] compressZLIB(byte[] input) throws IOException {
    // Create the compressor with highest level of compression
    Deflater compressor = new Deflater();
    compressor.setLevel(Deflater.BEST_SPEED);
    // Give the compressor the data to compress
    compressor.setInput(input);
    compressor.finish();/*  w w  w  .  j  a v  a  2 s.c o  m*/
    // Create an expandable byte array to hold the compressed data.
    // You cannot use an array that's the same size as the orginal because
    // there is no guarantee that the compressed data will be smaller than
    // the uncompressed data.
    ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);
    // Compress the data
    byte[] buf = new byte[1024];
    while (!compressor.finished()) {
        int count = compressor.deflate(buf);
        bos.write(buf, 0, count);
    }
    bos.close();
    // Get the compressed data
    byte[] compressedData = bos.toByteArray();
    return compressedData;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• »