diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java')
-rw-r--r-- | src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java b/src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java deleted file mode 100644 index 8b3f5e68..00000000 --- a/src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java +++ /dev/null @@ -1,95 +0,0 @@ -package eu.siacs.conversations.utils.zlib; - -import java.io.IOException; -import java.io.OutputStream; -import java.lang.reflect.InvocationTargetException; -import java.lang.reflect.Method; -import java.security.NoSuchAlgorithmException; -import java.util.zip.Deflater; -import java.util.zip.DeflaterOutputStream; - -/** - * <p> - * Android 2.2 includes Java7 FLUSH_SYNC option, which will be used by this - * Implementation, preferable via reflection. The @hide was remove in API level - * 19. This class might thus go away in the future. - * </p> - * <p> - * Please use {@link ZLibOutputStream#SUPPORTED} to check for flush - * compatibility. - * </p> - */ -public class ZLibOutputStream extends DeflaterOutputStream { - - /** - * The reflection based flush method. - */ - - private final static Method method; - /** - * SUPPORTED is true if a flush compatible method exists. - */ - public final static boolean SUPPORTED; - - /** - * Static block to initialize {@link #SUPPORTED} and {@link #method}. - */ - static { - Method m = null; - try { - m = Deflater.class.getMethod("deflate", byte[].class, int.class, - int.class, int.class); - } catch (SecurityException e) { - } catch (NoSuchMethodException e) { - } - method = m; - SUPPORTED = (method != null); - } - - /** - * Create a new ZLib compatible output stream wrapping the given low level - * stream. ZLib compatiblity means we will send a zlib header. - * - * @param os - * OutputStream The underlying stream. - * @throws IOException - * In case of a lowlevel transfer problem. - * @throws NoSuchAlgorithmException - * In case of a {@link Deflater} error. - */ - public ZLibOutputStream(OutputStream os) throws IOException, - NoSuchAlgorithmException { - super(os, new Deflater(Deflater.BEST_COMPRESSION)); - } - - /** - * Flush the given stream, preferring Java7 FLUSH_SYNC if available. - * - * @throws IOException - * In case of a lowlevel exception. - */ - @Override - public void flush() throws IOException { - if (!SUPPORTED) { - super.flush(); - return; - } - try { - int count = 0; - do { - count = (Integer) method.invoke(def, buf, 0, buf.length, 3); - if (count > 0) { - out.write(buf, 0, count); - } - } while (count > 0); - } catch (IllegalArgumentException e) { - throw new IOException("Can't flush"); - } catch (IllegalAccessException e) { - throw new IOException("Can't flush"); - } catch (InvocationTargetException e) { - throw new IOException("Can't flush"); - } - super.flush(); - } - -} |