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authoriNPUTmice <daniel@gultsch.de>2014-12-09 14:14:15 +0100
committeriNPUTmice <daniel@gultsch.de>2014-12-09 14:14:15 +0100
commit9d52f627670e5785e44b8b163dc29fadba007e44 (patch)
tree17c56152acb6e6a315b244321794932602a7e17e /src/main/java/eu/siacs/conversations/utils/zlib
parent5acd4718808581ab6523c5ced14ad61f61a7e3be (diff)
cleanup: removed stream compression
Diffstat (limited to 'src/main/java/eu/siacs/conversations/utils/zlib')
-rw-r--r--src/main/java/eu/siacs/conversations/utils/zlib/ZLibInputStream.java54
-rw-r--r--src/main/java/eu/siacs/conversations/utils/zlib/ZLibOutputStream.java95
2 files changed, 0 insertions, 149 deletions
diff --git a/src/main/java/eu/siacs/conversations/utils/zlib/ZLibInputStream.java b/src/main/java/eu/siacs/conversations/utils/zlib/ZLibInputStream.java
deleted file mode 100644
index b777c10c..00000000
--- a/src/main/java/eu/siacs/conversations/utils/zlib/ZLibInputStream.java
+++ /dev/null
@@ -1,54 +0,0 @@
-package eu.siacs.conversations.utils.zlib;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.zip.Inflater;
-import java.util.zip.InflaterInputStream;
-
-/**
- * ZLibInputStream is a zlib and input stream compatible version of an
- * InflaterInputStream. This class solves the incompatibility between
- * {@link InputStream#available()} and {@link InflaterInputStream#available()}.
- */
-public class ZLibInputStream extends InflaterInputStream {
-
- /**
- * Construct a ZLibInputStream, reading data from the underlying stream.
- *
- * @param is
- * The {@code InputStream} to read data from.
- * @throws IOException
- * If an {@code IOException} occurs.
- */
- public ZLibInputStream(InputStream is) throws IOException {
- super(is, new Inflater(), 512);
- }
-
- /**
- * Provide a more InputStream compatible version of available. A return
- * value of 1 means that it is likly to read one byte without blocking, 0
- * means that the system is known to block for more input.
- *
- * @return 0 if no data is available, 1 otherwise
- * @throws IOException
- */
- @Override
- public int available() throws IOException {
- /*
- * This is one of the funny code blocks. InflaterInputStream.available
- * violates the contract of InputStream.available, which breaks kXML2.
- *
- * I'm not sure who's to blame, oracle/sun for a broken api or the
- * google guys for mixing a sun bug with a xml reader that can't handle
- * it....
- *
- * Anyway, this simple if breaks suns distorted reality, but helps to
- * use the api as intended.
- */
- if (inf.needsInput()) {
- return 0;
- }
- return super.available();
- }
-
-}
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();
- }
-
-}