Example usage for java.util.zip Inflater end

Introduction

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

Prototype

public void end() 

Source Link

Document

Closes the decompressor and discards any unprocessed input.

Usage

From source file:Main.java

public static byte[] decompress(byte[] data, int off, int len) {

    byte[] output = null;

    Inflater decompresser = new Inflater();
    decompresser.reset();//from ww  w .ja  v a  2 s . com
    decompresser.setInput(data, off, len);

    ByteArrayOutputStream out = new ByteArrayOutputStream(data.length);
    try {
        byte[] result = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(result);
            out.write(result, 0, i);
        }
        output = out.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        try {
            out.close();
        } catch (Exception e) {
        }
        decompresser.end();
    }
    return output;
}

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From source file:org.apache.tez.common.TezCommonUtils.java

@Private
public static byte[] decompressByteStringToByteArray(ByteString byteString) throws IOException {
    Inflater inflater = newInflater();
    try {//from   ww w. ja  v a 2 s.c  o  m
        return decompressByteStringToByteArray(byteString, inflater);
    } finally {
        inflater.end();
    }
}

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From source file:org.socraticgrid.workbench.security.wso2.Saml2Util.java

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr encoded AuthReq/*from   ww  w . ja  v a2 s . co m*/
 * @return decoded AuthReq
 */
public static String decode(String encodedStr) throws Exception {
    try {
        org.apache.commons.codec.binary.Base64 base64Decoder = new org.apache.commons.codec.binary.Base64();
        byte[] xmlBytes = encodedStr.getBytes("UTF-8");
        byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

        try {
            Inflater inflater = new Inflater(true);
            inflater.setInput(base64DecodedByteArray);
            byte[] xmlMessageBytes = new byte[5000];
            int resultLength = inflater.inflate(xmlMessageBytes);

            if (!inflater.finished()) {
                throw new RuntimeException("didn't allocate enough space to hold " + "decompressed data");
            }

            inflater.end();
            return new String(xmlMessageBytes, 0, resultLength, "UTF-8");

        } catch (DataFormatException e) {
            ByteArrayInputStream bais = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(bais);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                baos.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();
            String decodedStr = new String(baos.toByteArray());
            return decodedStr;
        }
    } catch (IOException e) {
        throw new Exception("Error when decoding the SAML Request.", e);
    }

}

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From source file:com.hundsun.jresplus.web.nosession.cookie.HessianZipSerializer.java

public static Object decode(byte[] encodedValue) throws SerializationException {
    ByteArrayInputStream bais = new ByteArrayInputStream(encodedValue);
    Inflater inf = new Inflater(false);
    InflaterInputStream iis = new InflaterInputStream(bais, inf);
    Hessian2Input hi = null;/*from   ww  w.  j  a v a  2s . c o m*/
    try {
        hi = new Hessian2Input(iis);
        return hi.readObject();
    } catch (Exception e) {
        throw new SerializationException("Failed to parse data", e);
    } finally {
        if (hi != null) {
            try {
                hi.close();
            } catch (IOException e) {
            }
        }
        try {
            iis.close();
        } catch (IOException e) {
        }
        inf.end();
    }
}

---

From source file:Main.java

public static byte[] decompress(byte[] data, int off, int len) {
    byte[] output = null;
    Inflater decompresser = new Inflater();
    decompresser.reset();/*from   w  w w .  j  a  v  a2  s . c o m*/
    //      decompresser.setInput(data);
    decompresser.setInput(data, off, len);

    ByteArrayOutputStream o = new ByteArrayOutputStream(data.length);
    try {
        byte[] buf = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            o.write(buf, 0, i);
        }
        output = o.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        try {
            o.close();
            decompresser.end();
        } catch (Exception e) {
        }
    }

    return output;
}

---

From source file:ch.cern.security.saml2.utils.xml.XMLUtils.java

public static String xmlDecodeAndInflate(String encodedXmlString, boolean isDebugEnabled)
        throws UnsupportedEncodingException, DataFormatException {

    // URL decode
    // No need to URL decode: auto decoded by request.getParameter() method (GET)

    if (isDebugEnabled)
        nc.notice("Encoded XML String: " + encodedXmlString);

    // Base64 decode
    Base64 base64Decoder = new Base64();
    byte[] xmlBytes = encodedXmlString.getBytes("UTF-8");
    byte[] base64DecodedByteArray = base64Decoder.decode(xmlBytes);

    if (isDebugEnabled)
        nc.notice("Base64 decoded bytes: " + new String(base64DecodedByteArray, "UTF-8"));

    // Inflate (uncompress) the AuthnRequest data
    // First attempt to unzip the byte array according to DEFLATE (rfc 1951)
    Inflater inflater = new Inflater(true);
    inflater.setInput(base64DecodedByteArray);
    // since we are decompressing, it's impossible to know how much space we
    // might need; hopefully this number is suitably big
    byte[] xmlMessageBytes = new byte[5000];
    int resultLength = inflater.inflate(xmlMessageBytes);

    if (!inflater.finished()) {
        throw new RuntimeException("didn't allocate enough space to hold " + "decompressed data");
    }/*ww  w . j a  v  a  2 s.c  om*/

    inflater.end();

    String decodedString = new String(xmlMessageBytes, 0, resultLength, "UTF-8");

    if (isDebugEnabled)
        nc.notice("Decoded and inflated string (UTF-8): " + new String(base64DecodedByteArray));

    return decodedString;
}

---

From source file:gov.niem.ws.util.SecurityUtil.java

/**
 * Decode data by Base64 decoding, then decompressing with the DEFLATE
 * algorithm; reverses encodeHeader./*ww w.  java2  s.  c o m*/
 * 
 * @param encoded
 * @return the decoded, decompressed data
 * @throws DataFormatException
 */
public static String decodeHeader(byte[] encoded) throws DataFormatException {
    // TODO: length limit on encoded?
    byte[] compressedBytes = Base64.decodeBase64(encoded);
    ByteArrayOutputStream out = new ByteArrayOutputStream(compressedBytes.length);
    Inflater inflater = new Inflater();
    inflater.setInput(compressedBytes);
    byte[] buffer = new byte[1024];
    while (!inflater.finished()) {
        int count = inflater.inflate(buffer);
        if (count == 0)
            break;
        out.write(buffer, 0, count);
    }

    try {
        inflater.end();
        out.close();
    } catch (IOException e) {
    }

    return new String(out.toByteArray());
}

---

From source file:Main.java

/**
 * Decompress the zlib-compressed bytes and return an array of decompressed
 * bytes//from   ww w .java 2 s  . co  m
 * 
 */
public static byte[] decompress(byte compressedBytes[]) throws DataFormatException {

    Inflater decompresser = new Inflater();

    decompresser.setInput(compressedBytes);

    byte[] resultBuffer = new byte[compressedBytes.length * 2];
    byte[] resultTotal = new byte[0];

    int resultLength = decompresser.inflate(resultBuffer);

    while (resultLength > 0) {
        byte previousResult[] = resultTotal;
        resultTotal = new byte[resultTotal.length + resultLength];
        System.arraycopy(previousResult, 0, resultTotal, 0, previousResult.length);
        System.arraycopy(resultBuffer, 0, resultTotal, previousResult.length, resultLength);
        resultLength = decompresser.inflate(resultBuffer);
    }

    decompresser.end();

    return resultTotal;
}

---

From source file:Main.java

public static byte[] decompress(byte[] data, int off, int len, int srcLen) {
    byte[] output = null;
    Inflater decompresser = new Inflater();
    decompresser.reset();/* w  ww.  j  ava  2 s  . c  om*/
    //      decompresser.setInput(data);
    decompresser.setInput(data, off, len);

    ByteArrayOutputStream o = new ByteArrayOutputStream(srcLen);
    try {
        o.reset();
        byte[] buf = new byte[1024];
        while (!decompresser.finished()) {
            int i = decompresser.inflate(buf);
            o.write(buf, 0, i);
        }
        output = o.toByteArray();
    } catch (Exception e) {
        throw new RuntimeException(e);
    } finally {
        try {
            o.close();
            decompresser.end();
        } catch (Exception e) {
        }
    }

    return output;
}

---

From source file:Main.java

public final static byte[] decompress(byte[] input) throws IOException {
    if (input == null || input.length == 0) {
        return input;
    }/*from   www .jav  a 2  s. c  om*/
    Inflater inflator = new Inflater();
    inflator.setInput(input);
    ByteArrayOutputStream bin = new ByteArrayOutputStream(input.length);
    byte[] buf = new byte[BUFFER_SIZE];
    try {
        while (true) {
            int count = inflator.inflate(buf);
            if (count > 0) {
                bin.write(buf, 0, count);
            } else if (count == 0 && inflator.finished()) {
                break;
            } else {
                throw new IOException("bad zip data, size:" + input.length);
            }
        }
    } catch (DataFormatException t) {
        throw new IOException(t);
    } finally {
        inflator.end();
    }
    return bin.toByteArray();
}

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