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Lines 35-92
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| 35 |
super(os); |
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super(os); |
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} |
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} |
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private static final byte[] EMPTYBYTEARRAY = new byte[0]; |
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private boolean hasData = false; |
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/** |
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/** |
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* Here we make sure we have received data, so that the header has been for |
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* It is used to reserve one byte of real data so that it can be used when |
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* sure written to the output stream already. |
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* flushing the stream. |
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*/ |
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*/ |
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private byte[] lastByte = new byte[1]; |
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private boolean hasLastByte = false; |
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@Override |
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@Override |
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public synchronized void write(byte[] bytes, int i, int i1) |
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public void write(byte[] bytes) throws IOException { |
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write(bytes, 0, bytes.length); |
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} |
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@Override |
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public synchronized void write(byte[] bytes, int offset, int length) |
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throws IOException { |
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throws IOException { |
| 48 |
super.write(bytes, i, i1); |
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if (length > 0) { |
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hasData = true; |
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flushLastByte(); |
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if (length > 1) { |
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super.write(bytes, offset, length - 1); |
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} |
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rememberLastByte(bytes[offset + length - 1]); |
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} |
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} |
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} |
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| 52 |
@Override |
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@Override |
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public synchronized void write(int i) throws IOException { |
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public synchronized void write(int i) throws IOException { |
| 54 |
super.write(i); |
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flushLastByte(); |
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hasData = true; |
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rememberLastByte((byte) i); |
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} |
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} |
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@Override |
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@Override |
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public synchronized void write(byte[] bytes) throws IOException { |
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public synchronized void close() throws IOException { |
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super.write(bytes); |
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flushLastByte(); |
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hasData = true; |
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super.close(); |
| 62 |
} |
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} |
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private void rememberLastByte(byte b) { |
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lastByte[0] = b; |
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hasLastByte = true; |
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} |
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private void flushLastByte() throws IOException { |
| 80 |
if (hasLastByte) { |
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super.write(lastByte, 0, 1); |
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hasLastByte = false; |
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} |
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} |
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| 64 |
@Override |
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@Override |
| 65 |
public synchronized void flush() throws IOException { |
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public synchronized void flush() throws IOException { |
| 66 |
if (!hasData) { |
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if (hasLastByte) { |
| 67 |
return; // do not allow the gzip header to be flushed on its own |
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// - do not allow the gzip header to be flushed on its own |
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} |
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// - do not do anything if there is no data to send |
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// trick the deflater to flush |
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// trick the deflater to flush |
| 71 |
/** |
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/** |
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* Now this is tricky: We force the Deflater to flush its data by |
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* Now this is tricky: We force the Deflater to flush its data by |
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* switching compression level. As yet, a perplexingly simple workaround |
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* switching compression level. As yet, a perplexingly simple workaround |
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* for |
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* for |
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* http://developer.java.sun.com/developer/bugParade/bugs/4255743.html |
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* http://developer.java.sun.com/developer/bugParade/bugs/4255743.html |
| 76 |
*/ |
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*/ |
| 77 |
if (!def.finished()) { |
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if (!def.finished()) { |
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def.setInput(EMPTYBYTEARRAY, 0, 0); |
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def.setLevel(Deflater.NO_COMPRESSION); |
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flushLastByte(); |
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def.setLevel(Deflater.NO_COMPRESSION); |
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def.setLevel(Deflater.DEFAULT_COMPRESSION); |
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deflate(); |
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} |
| 82 |
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| 83 |
def.setLevel(Deflater.DEFAULT_COMPRESSION); |
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deflate(); |
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out.flush(); |
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} |
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} |
| 88 |
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out.flush(); |
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hasData = false; // no more data to flush |
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| 90 |
} |
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} |
| 91 |
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| 92 |
/* |
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/* |