List of usage examples for java.util.zip GZIPInputStream read
public int read(byte b[]) throws IOException
b.length bytes of data from this input stream into an array of bytes. From source file:me.j360.trace.example.consumer2.ZipkinServerConfiguration.java
static byte[] gunzip(byte[] input) throws IOException { GZIPInputStream in = new GZIPInputStream(new ByteArrayInputStream(input)); try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream(input.length)) { byte[] buf = GZIP_BUFFER.get(); int len;/*from ww w .j ava 2s . c om*/ while ((len = in.read(buf)) > 0) { outputStream.write(buf, 0, len); } return outputStream.toByteArray(); } }
From source file:org.eclipse.smila.connectivity.framework.crawler.web.util.GZIPUtils.java
/** * Returns an gunzipped copy of the input array. * //from w w w . j av a 2s . c om * @param in * input byte array * @return gunzipped copy of the input array * @throws IOException * if the input cannot be properly decompressed */ public static byte[] unzip(byte[] in) throws IOException { // decompress using GZIPInputStream final ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length); final GZIPInputStream inStream = new GZIPInputStream(new ByteArrayInputStream(in)); final byte[] buf = new byte[BUF_SIZE]; while (true) { final int size = inStream.read(buf); if (size <= 0) { break; } outStream.write(buf, 0, size); } outStream.close(); return outStream.toByteArray(); }
From source file:edu.harvard.i2b2.fhir.Utils.java
public static String unCompressString(final byte[] data, final String encoding) throws IOException { if (data == null || data.length == 0) { return null; } else {/*ww w . j a v a 2s.co m*/ ByteArrayInputStream bais = new ByteArrayInputStream(data); ByteArrayOutputStream buffer = new ByteArrayOutputStream(); GZIPInputStream is = new GZIPInputStream(bais); byte[] tmp = new byte[256]; while (true) { int r = is.read(tmp); if (r < 0) { break; } buffer.write(tmp, 0, r); } is.close(); byte[] content = buffer.toByteArray(); return new String(content, 0, content.length, encoding); } }
From source file:uk.ac.bbsrc.tgac.miso.integration.util.IntegrationUtils.java
public static byte[] decompress(byte[] contentBytes) throws IOException { ByteArrayOutputStream out = new ByteArrayOutputStream(); GZIPInputStream bis = new GZIPInputStream(new Base64InputStream(new ByteArrayInputStream(contentBytes))); byte[] buffer = new byte[1024 * 4]; int n = 0;//from w w w . j av a 2 s . c o m while (-1 != (n = bis.read(buffer))) { out.write(buffer, 0, n); } bis.close(); return out.toByteArray(); }
From source file:GZIPUtils.java
/** * Returns an gunzipped copy of the input array, truncated to * <code>sizeLimit</code> bytes, if necessary. If the gzipped input * has been truncated or corrupted, a best-effort attempt is made to * unzip as much as possible. If no data can be extracted * <code>null</code> is returned. *///from ww w.ja v a 2s . c o m public static final byte[] unzipBestEffort(byte[] in, int sizeLimit) { try { // decompress using GZIPInputStream ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length); GZIPInputStream inStream = new GZIPInputStream(new ByteArrayInputStream(in)); 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) { break; } } try { outStream.close(); } catch (IOException e) { } return outStream.toByteArray(); } catch (IOException e) { return null; } }
From source file:Main.java
@Nullable public static String decompress(String input) { StringBuilder sb = new StringBuilder(); ByteArrayInputStream is = null; GZIPInputStream gis = null; try {/*from www. j av a2s. com*/ final byte[] bytes = Base64.decode(input, Base64.DEFAULT); is = new ByteArrayInputStream(bytes); gis = new GZIPInputStream(is, BUFFER_SIZE); int cache; final byte[] data = new byte[BUFFER_SIZE]; while ((cache = gis.read(data)) != -1) { sb.append(new String(data, 0, cache)); } } catch (IOException e) { return null; } finally { try { if (gis != null) gis.close(); if (is != null) is.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); }
From source file:net.zyuiop.remoteworldloader.utils.CompressionUtils.java
public static void uncompressFile(File archive, File target) throws IOException { byte[] buffer = new byte[1024]; if (target.exists()) target.delete();//w w w.ja v a 2s. c o m target.createNewFile(); try { GZIPInputStream stream = new GZIPInputStream(new FileInputStream(archive)); FileOutputStream out = new FileOutputStream(target); int len; while ((len = stream.read(buffer)) > 0) { out.write(buffer, 0, len); } stream.close(); out.close(); } catch (IOException ex) { ex.printStackTrace(); } Bukkit.getLogger().info("Extracted file " + target.getName() + "."); }
From source file:com.ery.ertc.estorm.util.GZIPUtils.java
/** * Returns an gunzipped copy of the input array, truncated to <code>sizeLimit</code> bytes, if necessary. If the gzipped input has been * truncated or corrupted, a best-effort attempt is made to unzip as much as possible. If no data can be extracted <code>null</code> is * returned.//from w ww .j a v a2 s .c om */ public static final byte[] unzipBestEffort(byte[] in, int sizeLimit) { try { // decompress using GZIPInputStream ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length); GZIPInputStream inStream = new GZIPInputStream(new ByteArrayInputStream(in)); 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) { break; } } try { outStream.close(); } catch (IOException e) { } return outStream.toByteArray(); } catch (IOException e) { return null; } }
From source file:pl.otros.logview.api.io.Utils.java
private static byte[] ungzip(byte[] buff) throws IOException { GZIPInputStream gzipInputStream = new GZIPInputStream(new ByteArrayInputStream(buff)); byte[] ungzippedRead = new byte[buff.length]; int read = gzipInputStream.read(ungzippedRead); byte[] ungzipped = new byte[read]; System.arraycopy(ungzippedRead, 0, ungzipped, 0, read); return ungzipped; }
From source file:org.commoncrawl.util.shared.GZIPUtils.java
/** * Returns an gunzipped copy of the input array, truncated to * <code>sizeLimit</code> bytes, if necessary. If the gzipped input has been * truncated or corrupted, a best-effort attempt is made to unzip as much as * possible. If no data can be extracted <code>null</code> is returned. *//*www. java 2 s .co m*/ public static final UnzipResult unzipBestEffort(byte[] in, int offset, int sizeIn, int sizeLimit) { try { // decompress using GZIPInputStream ByteArrayOutputStream outStream = new ByteArrayOutputStream(EXPECTED_COMPRESSION_RATIO * in.length); boolean truncated = false; GZIPInputStream inStream = new GZIPInputStream(new ByteArrayInputStream(in, offset, sizeIn)); 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); truncated = true; break; } outStream.write(buf, 0, size); written += size; } catch (Exception e) { break; } } try { outStream.close(); } catch (IOException e) { } return new UnzipResult(outStream.toByteArray(), truncated); } catch (IOException e) { return null; } catch (OutOfMemoryError e) { LOG.fatal(CCStringUtils.stringifyException(e)); return null; } }