Example usage for java.util.zip InflaterInputStream read

Introduction

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

Prototype

public int read(byte b[]) throws IOException 

Source Link

Document

Reads up to b.length bytes of data from this input stream into an array of bytes.

Usage

From source file:Main.java

public static byte[] inflate(InputStream in, int bufferSize) throws IOException {
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(bufferSize);

    InflaterInputStream inStream = new InflaterInputStream(in);

    byte[] buf = new byte[4096];
    while (true) {
        int size = inStream.read(buf);
        if (size <= 0)
            break;
        outStream.write(buf, 0, size);/*from   w  w w .  j a v a  2 s  .co m*/
    }
    outStream.close();

    return outStream.toByteArray();
}

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From source file:org.wso2.identity.integration.test.requestPathAuthenticator.RequestPathAuthenticatorInvalidUserTestCase.java

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr encoded AuthReq/*from w  w  w. ja va 2 s.com*/
 * @return decoded AuthReq
 */
private static String decode(String encodedStr) {
    try {
        Base64 base64Decoder = new Base64();
        byte[] xmlBytes = encodedStr.getBytes(DEFAULT_CHARSET);
        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("End of the compressed data stream has NOT been reached");
            }

            inflater.end();
            String decodedString = new String(xmlMessageBytes, 0, resultLength, (DEFAULT_CHARSET));
            return decodedString;

        } catch (DataFormatException e) {
            ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(byteArrayInputStream);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                byteArrayOutputStream.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();
            String decodedStr = new String(byteArrayOutputStream.toByteArray(), StandardCharsets.UTF_8);

            return decodedStr;
        }
    } catch (IOException e) {
        Assert.fail("Error while decoding SAML response", e);
        return "";
    }
}

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

/**
 * Returns an inflated copy of the input array.  
 * @throws IOException if the input cannot be properly decompressed
 *//*from   w  ww  . ja v  a2 s  . c  o m*/
public static final byte[] inflate(byte[] in) throws IOException {
    // decompress using InflaterInputStream 
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length);

    InflaterInputStream inStream = new InflaterInputStream(new ByteArrayInputStream(in));

    byte[] buf = new byte[BUF_SIZE];
    while (true) {
        int size = inStream.read(buf);
        if (size <= 0)
            break;
        outStream.write(buf, 0, size);
    }
    outStream.close();

    return outStream.toByteArray();
}

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From source file:org.wso2.carbon.identity.sso.saml.tomcat.agent.Util.java

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr/*from w w  w.  j a  v a2 s. c  om*/
 *            encoded AuthReq
 * @return decoded AuthReq
 */
public static String decode(String encodedStr) throws SSOAgentException {
    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.getRemaining() > 0) {
                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();
            return new String(baos.toByteArray());
        }
    } catch (IOException e) {
        throw new SSOAgentException("Error when decoding the SAML Request.", e);
    }
}

---

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

/**
 * Returns an inflated copy of the input array, truncated to
 * <code>sizeLimit</code> bytes, if necessary.  If the deflated input
 * has been truncated or corrupted, a best-effort attempt is made to
 * inflate as much as possible.  If no data can be extracted
 * <code>null</code> is returned.
 *//*w  ww  .  ja v  a  2 s .co m*/
public static final byte[] inflateBestEffort(byte[] in, int sizeLimit) {
    // decompress using InflaterInputStream 
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length);

    // "true" because HTTP does not provide zlib headers
    Inflater inflater = new Inflater(true);
    InflaterInputStream inStream = new InflaterInputStream(new ByteArrayInputStream(in), inflater);

    byte[] buf = new byte[BUF_SIZE];
    int written = 0;
    while (true) {
        try {
            int size = inStream.read(buf);
            if (size <= 0)
                break;
            if ((written + size) > sizeLimit) {
                outStream.write(buf, 0, sizeLimit - written);
                break;
            }
            outStream.write(buf, 0, size);
            written += size;
        } catch (Exception e) {
            LOG.info("Caught Exception in inflateBestEffort", e);
            break;
        }
    }
    try {
        outStream.close();
    } catch (IOException e) {
    }

    return outStream.toByteArray();
}

---

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

/**
 * Returns an inflated copy of the input array, truncated to
 * <code>sizeLimit</code> bytes, if necessary.  If the deflated input
 * has been truncated or corrupted, a best-effort attempt is made to
 * inflate as much as possible.  If no data can be extracted
 * <code>null</code> is returned.
 *///from   w w w  .  j av a  2  s .  c o  m
public static final byte[] inflateBestEffort(byte[] in, int sizeLimit) {
    // decompress using InflaterInputStream 
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length);

    // "true" because HTTP does not provide zlib headers
    Inflater inflater = new Inflater(true);
    InflaterInputStream inStream = new InflaterInputStream(new ByteArrayInputStream(in), inflater);

    byte[] buf = new byte[BUF_SIZE];
    int written = 0;
    while (true) {
        try {
            int size = inStream.read(buf);
            if (size <= 0)
                break;
            if ((written + size) > sizeLimit) {
                outStream.write(buf, 0, sizeLimit - written);
                break;
            }
            outStream.write(buf, 0, size);
            written += size;
        } catch (Exception e) {
            LOG.info("Caught Exception in inflateBestEffort");
            e.printStackTrace(LogUtil.getWarnStream(LOG));
            break;
        }
    }
    try {
        outStream.close();
    } catch (IOException e) {
    }

    return outStream.toByteArray();
}

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

private static String zlibDeflate(final byte[] bytes) {
    final ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    final InflaterInputStream iis = new InflaterInputStream(bais);
    final byte[] buf = new byte[1024];

    try {//from w w w  . ja  v a  2s.c o  m
        int count = iis.read(buf);
        while (count != -1) {
            baos.write(buf, 0, count);
            count = iis.read(buf);
        }
        return new String(baos.toByteArray());
    } catch (final Exception e) {
        return null;
    } finally {
        try {
            iis.close();
        } catch (final Exception e) {
            // nothing to do
        }
    }
}

---

From source file:org.jasig.cas.support.saml.authentication.principal.GoogleAccountsService.java

private static String zlibDeflate(final byte[] bytes) {
    final ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    final ByteArrayOutputStream baos = new ByteArrayOutputStream();
    final InflaterInputStream iis = new InflaterInputStream(bais);
    final byte[] buf = new byte[1024];

    try {/*from w w w.  ja  va2  s.  com*/
        int count = iis.read(buf);
        while (count != -1) {
            baos.write(buf, 0, count);
            count = iis.read(buf);
        }
        return new String(baos.toByteArray());
    } catch (final Exception e) {
        return null;
    } finally {
        IOUtils.closeQuietly(iis);
    }
}

---

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

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr encoded AuthReq//from w  w  w .j  a  va  2  s .c om
 * @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);
    }

}

---

From source file:org.wso2.identity.integration.test.requestPathAuthenticator.RequestPathAuthenticatorTestCase.java

/**
 * Decoding and deflating the encoded AuthReq
 *
 * @param encodedStr encoded AuthReq//from   ww w  . j  av  a 2 s .  co  m
 * @return decoded AuthReq
 */
private static String decode(String encodedStr) {
    try {
        Base64 base64Decoder = new Base64();
        byte[] xmlBytes = encodedStr.getBytes(DEFAULT_CHARSET);
        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("End of the compressed data stream has NOT been reached");
            }

            inflater.end();
            String decodedString = new String(xmlMessageBytes, 0, resultLength, (DEFAULT_CHARSET));
            return decodedString;

        } catch (DataFormatException e) {
            ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(base64DecodedByteArray);
            ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
            InflaterInputStream iis = new InflaterInputStream(byteArrayInputStream);
            byte[] buf = new byte[1024];
            int count = iis.read(buf);
            while (count != -1) {
                byteArrayOutputStream.write(buf, 0, count);
                count = iis.read(buf);
            }
            iis.close();
            String decodedStr = new String(byteArrayOutputStream.toByteArray(), StandardCharsets.UTF_8);

            return decodedStr;
        }
    } catch (IOException e) {
        Assert.fail("Error while decoding SAML response");
        return "";
    }
}

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