List of usage examples for java.util.zip Deflater setLevel
public void setLevel(int level)
From source file:org.getspout.spout.packet.PacketBlockData.java
public void compress() { if (!compressed) { Deflater deflater = new Deflater(); deflater.setInput(data);//from w w w . j a va2 s .c o m deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.finish(); ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int bytesCompressed = deflater.deflate(buffer); bos.write(buffer, 0, bytesCompressed); } try { bos.close(); } catch (IOException e) { e.printStackTrace(); } data = bos.toByteArray(); compressed = true; } }
From source file:org.getspout.spout.packet.PacketCacheFile.java
public void compress() { if (!compressed) { Deflater deflater = new Deflater(); deflater.setInput(fileData);/*from w w w.j a v a 2s . com*/ deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.finish(); ByteArrayOutputStream bos = new ByteArrayOutputStream(fileData.length); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int bytesCompressed = deflater.deflate(buffer); bos.write(buffer, 0, bytesCompressed); } try { bos.close(); } catch (IOException e) { e.printStackTrace(); } fileData = bos.toByteArray(); compressed = true; } }
From source file:org.getspout.spoutapi.packet.PacketCustomBlockChunkOverride.java
@Override public void compress() { if (!compressed) { if (data != null && hasData) { Deflater deflater = new Deflater(); deflater.setInput(data);//from w w w.ja va 2s . c o m deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.finish(); ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int bytesCompressed = deflater.deflate(buffer); bos.write(buffer, 0, bytesCompressed); } try { bos.close(); } catch (IOException e) { e.printStackTrace(); } data = bos.toByteArray(); } compressed = true; } }
From source file:spartanfinal.ProcessFiles.java
public byte[] compress(byte[] data) throws IOException { Deflater deflater = new Deflater(); deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.setInput(data);/*from w w w.j av a 2 s . c o m*/ ByteArrayOutputStream outputStream = new ByteArrayOutputStream(data.length); deflater.finish(); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int count = deflater.deflate(buffer); outputStream.write(buffer, 0, count); } byte[] output = outputStream.toByteArray(); return output; }
From source file:org.getspout.spoutapi.packet.PacketAddonData.java
@Override public void compress() { if (!compressed) { if (data != null) { Deflater deflater = new Deflater(); deflater.setInput(data);//from w w w. j a v a2s .c o m deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.finish(); ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int bytesCompressed = deflater.deflate(buffer); bos.write(buffer, 0, bytesCompressed); } try { bos.close(); } catch (IOException e) { e.printStackTrace(); } data = bos.toByteArray(); } compressed = true; } }
From source file:org.getspout.spout.packet.PacketAddonData.java
public void compress() { if (!compressed) { if (data != null) { Deflater deflater = new Deflater(); deflater.setInput(data);/* www. j a v a 2 s . com*/ deflater.setLevel(Deflater.BEST_COMPRESSION); deflater.finish(); ByteArrayOutputStream bos = new ByteArrayOutputStream(data.length); byte[] buffer = new byte[1024]; while (!deflater.finished()) { int bytesCompressed = deflater.deflate(buffer); bos.write(buffer, 0, bytesCompressed); } try { bos.close(); } catch (IOException e) { e.printStackTrace(); } data = bos.toByteArray(); } compressed = true; } }
From source file:com.funambol.transport.http.server.Sync4jServlet.java
/** * Sets the content of HTTP response./* w ww. j a va 2 s . c om*/ * * Compresses the response if the Accept-Encoding is gzip or deflate. * Sets the Content-Encoding according to the encoding used. * Sets the Content-Length with the length of the compressed response. * Sets the Uncompressed-Content-Length with the length of the uncompressed * response. * The response will be compressed only if the length of the uncompressed * response is greater than the give sizeThreashold. * * @param httpResponse the HttpServletResponse * @param requestAcceptEncoding the <code>Accept-Encoding</code> specified * in the request * @param sizeThreshold if the response is smaller of this value, it * should not be compressed * @param resp the SyncResponse object contains the response message * @param requestTime the time in which the request is arrived to servlet * @param sessionId the session identifier * @throws java.io.IOException if an error occurs * */ private void setResponseContent(HttpServletResponse httpResponse, String requestAcceptEncoding, String sizeThreshold, SyncResponse resp, long requestTime, String sessionId) throws IOException { byte[] responseContent = null; OutputStream out = null; try { out = httpResponse.getOutputStream(); responseContent = resp.getMessage(); int uncompressedContentLength = responseContent.length; if (supportedEncoding != null && !"".equals(supportedEncoding) && enableCompression) { if (log.isTraceEnabled()) { log.trace("Setting Accept-Encoding to " + supportedEncoding); } httpResponse.setHeader(HEADER_ACCEPT_ENCODING, supportedEncoding); } String encodingToUse = null; if (requestAcceptEncoding != null) { if (requestAcceptEncoding.indexOf(COMPRESSION_TYPE_GZIP) != -1 && requestAcceptEncoding.indexOf(COMPRESSION_TYPE_DEFLATE) != -1) { encodingToUse = preferredEncoding; } else if (requestAcceptEncoding.indexOf(COMPRESSION_TYPE_DEFLATE) != -1) { encodingToUse = COMPRESSION_TYPE_DEFLATE; } else if (requestAcceptEncoding.indexOf(COMPRESSION_TYPE_GZIP) != -1) { encodingToUse = COMPRESSION_TYPE_GZIP; } } int threshold = 0; try { if (sizeThreshold != null && sizeThreshold.length() != 0) { threshold = Integer.parseInt(sizeThreshold); } } catch (NumberFormatException ex) { // // Ignoring the specified value // if (log.isTraceEnabled()) { log.trace("The size threshold specified by the client (" + sizeThreshold + ") is not valid."); } } // // If the encodingToUse is null or the // uncompressed response length is less than // sizeThreshold, the response will not be compressed. // if (encodingToUse == null || uncompressedContentLength < threshold) { if (log.isTraceEnabled()) { if (enableCompression) { if (requestAcceptEncoding == null) { log.trace( "The client doesn't support any encoding. " + "The response is not compressed"); } else if (encodingToUse == null) { log.trace("The specified Accept-Encoding (" + requestAcceptEncoding + ") is not recognized. The response is not compressed"); } else if (uncompressedContentLength < threshold) { log.trace("The response is not compressed because smaller than " + threshold); } } } if (log.isTraceEnabled()) { log.trace("Setting Content-Length to: " + uncompressedContentLength); } httpResponse.setContentLength(uncompressedContentLength); out.write(responseContent); out.flush(); return; } if (encodingToUse != null) { if (log.isTraceEnabled()) { log.trace("Compressing the response using: " + encodingToUse); log.trace("Setting Uncompressed-Content-Length to: " + uncompressedContentLength); } httpResponse.setHeader(HEADER_UNCOMPRESSED_CONTENT_LENGTH, String.valueOf(uncompressedContentLength)); if (encodingToUse.equals(COMPRESSION_TYPE_GZIP)) { ByteArrayOutputStream bos = new ByteArrayOutputStream(); GZIPOutputStream outTmp = new GZIPOutputStream(bos); outTmp.write(responseContent, 0, uncompressedContentLength); outTmp.flush(); outTmp.close(); // // Get the compressed data // responseContent = bos.toByteArray(); int compressedLength = responseContent.length; if (log.isTraceEnabled()) { log.trace("Setting Content-Length to: " + compressedLength); log.trace("Setting Content-Encoding to: " + COMPRESSION_TYPE_GZIP); } httpResponse.setContentLength(compressedLength); httpResponse.setHeader(HEADER_CONTENT_ENCODING, COMPRESSION_TYPE_GZIP); out.write(responseContent); out.flush(); } else if (encodingToUse.equals(COMPRESSION_TYPE_DEFLATE)) { // // Create the compressor with specificated level of compression // Deflater compressor = new Deflater(); compressor.setLevel(compressionLevel); compressor.setInput(responseContent); compressor.finish(); // // 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(uncompressedContentLength); // // Compress the response // byte[] buf = new byte[SIZE_INPUT_BUFFER]; while (!compressor.finished()) { int count = compressor.deflate(buf); bos.write(buf, 0, count); } // // Get the compressed data // responseContent = bos.toByteArray(); int compressedLength = responseContent.length; if (log.isTraceEnabled()) { log.trace("Setting Content-Length to: " + compressedLength); log.trace("Setting Content-Encoding to: " + COMPRESSION_TYPE_DEFLATE); } httpResponse.setContentLength(compressedLength); httpResponse.setHeader(HEADER_CONTENT_ENCODING, COMPRESSION_TYPE_DEFLATE); out.write(responseContent); out.flush(); } } } finally { if (out != null) { out.close(); } if (logMessages) { logResponse(responseContent, requestTime, sessionId); } } }