Example usage for java.util.zip GZIPOutputStream write

Introduction

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

Prototype

public synchronized void write(byte[] buf, int off, int len) throws IOException 

Source Link

Document

Writes array of bytes to the compressed output stream.

Usage

From source file:org.makersoft.mvc.json.JSONUtil.java

public static void writeJSONToResponse(SerializationParams serializationParams) throws IOException {
    StringBuilder stringBuilder = new StringBuilder();
    if (StringUtils.isNotBlank(serializationParams.getSerializedJSON()))
        stringBuilder.append(serializationParams.getSerializedJSON());

    if (StringUtils.isNotBlank(serializationParams.getWrapPrefix()))
        stringBuilder.insert(0, serializationParams.getWrapPrefix());
    else if (serializationParams.isWrapWithComments()) {
        stringBuilder.insert(0, "/* ");
        stringBuilder.append(" */");
    } else if (serializationParams.isPrefix())
        stringBuilder.insert(0, "{}&& ");

    if (StringUtils.isNotBlank(serializationParams.getWrapSuffix()))
        stringBuilder.append(serializationParams.getWrapSuffix());

    String json = stringBuilder.toString();

    if (LOG.isDebugEnabled()) {
        LOG.debug("[JSON]" + json);
    }//from  w w w  .  j  a  v  a  2 s. co  m

    HttpServletResponse response = serializationParams.getResponse();

    // status or error code
    if (serializationParams.getStatusCode() > 0)
        response.setStatus(serializationParams.getStatusCode());
    else if (serializationParams.getErrorCode() > 0)
        response.sendError(serializationParams.getErrorCode());

    // content type
    //        response.setContentType(serializationParams.getContentType() + ";charset="
    //                + serializationParams.getEncoding());

    // character encoding  
    response.setCharacterEncoding(serializationParams.getEncoding());
    // content type
    response.setContentType(serializationParams.getContentType());

    if (serializationParams.isNoCache()) {
        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Expires", "0");
        response.setHeader("Pragma", "No-cache");
    }

    if (serializationParams.isGzip()) {
        response.addHeader("Content-Encoding", "gzip");
        GZIPOutputStream out = null;
        InputStream in = null;
        try {
            out = new GZIPOutputStream(response.getOutputStream());
            in = new ByteArrayInputStream(json.getBytes(serializationParams.getEncoding()));
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        } finally {
            if (in != null)
                in.close();
            if (out != null) {
                out.finish();
                out.close();
            }
        }

    } else {
        response.setContentLength(json.getBytes(serializationParams.getEncoding()).length);
        PrintWriter out = response.getWriter();
        out.print(json);
    }
}

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From source file:org.ofbiz.webapp.event.RestEventHandler.java

/** 
* ? /* ww  w.  jav  a 2  s .c o m*/
*  
* @param is 
* @param os 
* @throws Exception 
*/
public static void compress(InputStream is, OutputStream os) throws Exception {

    GZIPOutputStream gos = new GZIPOutputStream(os);

    int count;
    byte data[] = new byte[BUFFER];
    while ((count = is.read(data, 0, BUFFER)) != -1) {
        gos.write(data, 0, count);
    }

    gos.finish();

    gos.flush();
    gos.close();
}

---

From source file:com.sxit.crawler.utils.ArchiveUtils.java

/**
 * Gzip passed bytes.//from w ww. j a  v  a2 s.  c  o m
 * Use only when bytes is small.
 * @param bytes What to gzip.
 * @return A gzip member of bytes.
 * @throws IOException
 */
public static byte[] gzip(byte[] bytes) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzipOS = new GZIPOutputStream(baos);
    gzipOS.write(bytes, 0, bytes.length);
    gzipOS.close();
    return baos.toByteArray();
}

---

From source file:arena.utils.FileUtils.java

public static void gzip(File input, File outFile) {
    Log log = LogFactory.getLog(FileUtils.class);
    InputStream inStream = null;//from  ww  w .ja v a2 s.  c  o m
    OutputStream outStream = null;
    GZIPOutputStream gzip = null;
    try {
        long inFileLengthKB = input.length() / 1024L;

        // Open the out file
        if (outFile == null) {
            outFile = new File(input.getParentFile(), input.getName() + ".gz");
        }
        inStream = new FileInputStream(input);
        outStream = new FileOutputStream(outFile, true);
        gzip = new GZIPOutputStream(outStream);

        // Iterate through in buffers and write out to the gzipped output stream
        byte buffer[] = new byte[102400]; // 100k buffer
        int read = 0;
        long readSoFar = 0;
        while ((read = inStream.read(buffer)) != -1) {
            readSoFar += read;
            gzip.write(buffer, 0, read);
            log.debug("Gzipped " + (readSoFar / 1024L) + "KB / " + inFileLengthKB + "KB of logfile "
                    + input.getName());
        }

        // Close the streams
        inStream.close();
        inStream = null;
        gzip.close();
        gzip = null;
        outStream.close();
        outStream = null;

        // Delete the old file
        input.delete();
        log.debug("Gzip of logfile " + input.getName() + " complete");
    } catch (IOException err) {
        // Delete the gzip file
        log.error("Error during gzip of logfile " + input, err);
    } finally {
        if (inStream != null) {
            try {
                inStream.close();
            } catch (IOException err2) {
            }
        }
        if (gzip != null) {
            try {
                gzip.close();
            } catch (IOException err2) {
            }
        }
        if (outStream != null) {
            try {
                outStream.close();
            } catch (IOException err2) {
            }
        }
    }
}

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From source file:org.forgerock.openam.cts.utils.blob.strategies.CompressionStrategy.java

/**
 * Compress the Tokens binary object./*from w w w.j a  v  a 2 s .  c  o  m*/
 *
 * @param token Non null Token to modify.
 *
 * @throws org.forgerock.openam.cts.utils.blob.TokenStrategyFailedException {@inheritDoc}
 */
@Override
public void perform(Token token) throws TokenStrategyFailedException {
    bout.reset();
    try {
        GZIPOutputStream out = new GZIPOutputStream(bout);
        out.write(token.getBlob(), 0, token.getBlob().length);
        out.flush();
        out.close();
    } catch (IOException e) {
        throw new TokenStrategyFailedException(e);
    }
    token.setBlob(bout.toByteArray());
}

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From source file:com.eucalyptus.blockstorage.PutMethodWithProgress.java

@Override
protected boolean writeRequestBody(HttpState state, HttpConnection conn) throws IOException {
    InputStream inputStream;/*from   ww  w .j a v  a  2s . c  o m*/
    if (outFile != null) {
        inputStream = new FileInputStream(outFile);

        ChunkedOutputStream chunkedOut = new ChunkedOutputStream(conn.getRequestOutputStream());
        byte[] buffer = new byte[StorageProperties.TRANSFER_CHUNK_SIZE];
        int bytesRead;
        long totalBytesProcessed = 0;
        while ((bytesRead = inputStream.read(buffer)) > 0) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            GZIPOutputStream zip = new GZIPOutputStream(out);
            zip.write(buffer, 0, bytesRead);
            zip.close();
            chunkedOut.write(out.toByteArray());
            totalBytesProcessed += bytesRead;
            callback.update(totalBytesProcessed);
        }
        if (totalBytesProcessed > 0) {
            callback.finish();
        } else {
            callback.failed();
        }
        chunkedOut.finish();
        inputStream.close();
    } else {
        return false;
    }
    return true;
}

---

From source file:edu.ucsb.eucalyptus.cloud.ws.PutMethodWithProgress.java

@Override
protected boolean writeRequestBody(HttpState state, HttpConnection conn) throws IOException {
    InputStream inputStream;/*from w w w. j  av a 2s. c  om*/
    if (outFile != null) {
        inputStream = new FileInputStream(outFile);

        ChunkedOutputStream chunkedOut = new ChunkedOutputStream(conn.getRequestOutputStream());
        byte[] buffer = new byte[StorageProperties.TRANSFER_CHUNK_SIZE];
        int bytesRead;
        int numberProcessed = 0;
        long totalBytesProcessed = 0;
        while ((bytesRead = inputStream.read(buffer)) > 0) {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            GZIPOutputStream zip = new GZIPOutputStream(out);
            zip.write(buffer, 0, bytesRead);
            zip.close();
            chunkedOut.write(out.toByteArray());
            totalBytesProcessed += bytesRead;
            if (++numberProcessed >= callback.getUpdateThreshold()) {
                callback.run();
                numberProcessed = 0;
            }
        }
        if (totalBytesProcessed > 0) {
            callback.finish();
        } else {
            callback.failed();
        }
        chunkedOut.finish();
        inputStream.close();
    } else {
        return false;
    }
    return true;
}

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From source file:gdt.data.entity.ArchiveHandler.java

private static void compressGzipFile(String tarFile$, String gzipFile$) {
    try {//from   ww w . j  a v  a2 s .  co m
        FileInputStream fis = new FileInputStream(tarFile$);
        FileOutputStream fos = new FileOutputStream(gzipFile$);
        GZIPOutputStream gzipOS = new GZIPOutputStream(fos);
        byte[] buffer = new byte[1024];
        int len;
        while ((len = fis.read(buffer)) != -1) {
            gzipOS.write(buffer, 0, len);
        }
        gzipOS.close();
        fos.close();
        fis.close();
    } catch (Exception e) {
        Logger.getLogger(ArchiveHandler.class.getName()).severe(e.toString());
    }

}

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From source file:org.commoncrawl.util.ArcFileWriter.java

/**
 * Gzip passed bytes. Use only when bytes is small.
 * /*  w  w  w . jav  a 2s  .  c om*/
 * @param bytes
 *          What to gzip.
 * @return A gzip member of bytes.
 * @throws IOException
 */
private static byte[] gzip(byte[] bytes) throws IOException {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    GZIPOutputStream gzipOS = new GZIPOutputStream(baos);
    gzipOS.write(bytes, 0, bytes.length);
    gzipOS.close();
    return baos.toByteArray();
}

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From source file:z.hol.net.http.entity.compress.GzipCompressingEntity.java

@Override
public void writeTo(final OutputStream outstream) throws IOException {
    if (outstream == null) {
        throw new IllegalArgumentException("Output stream may not be null");
    }//from w  w  w .jav  a 2 s.  c o  m
    GZIPOutputStream gzip = new GZIPOutputStream(outstream);
    InputStream in = wrappedEntity.getContent();
    byte[] tmp = new byte[2048];
    int l;
    while ((l = in.read(tmp)) != -1) {
        gzip.write(tmp, 0, l);
    }
    gzip.close();
}

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