Examples of org.apache.http.nio.reactor.SessionOutputBuffer

org.apache.http.nio.reactor.SessionOutputBuffer
Session output buffer for non-blocking connections. @author Oleg Kalnichevski @since 4.0

    }


    public void testComplexReadWriteLine() throws Exception {
        HttpParams params = new BasicHttpParams();
        
        SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params); 
        outbuf.write(ByteBuffer.wrap(new byte[] {'a', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\r', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\n'}));
        
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < 14; i++) {
            buffer.append("a");
        }
        String s1 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));


        buffer.setLength(0);
        for (int i = 0; i < 15; i++) {
            buffer.append("a");
        }
        String s2 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));


        buffer.setLength(0);
        for (int i = 0; i < 16; i++) {
            buffer.append("a");
        }
        String s3 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes("US-ASCII")));


        outbuf.write(ByteBuffer.wrap(new byte[] {'a'}));
        
        ByteArrayOutputStream outstream = new ByteArrayOutputStream(); 
        WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        ReadableByteChannel channel = newChannel(outstream.toByteArray());


        SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 16, params);
        inbuf.fill(channel);

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        String s3 = "Like hello and stuff";
        
        HttpParams params = new BasicHttpParams();
        HttpProtocolParams.setHttpElementCharset(params, "UTF-8");
        
        SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
        
        for (int i = 0; i < 10; i++) {
            outbuf.writeLine(s1);
            outbuf.writeLine(s2);
            outbuf.writeLine(s3);
        }
        
        ByteArrayOutputStream outstream = new ByteArrayOutputStream(); 
        WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        byte[] tmp = outstream.toByteArray();
        
        ReadableByteChannel channel = newChannel(tmp);        
        SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, params);

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    }


    public void testMalformedCharacters() throws Exception {
        HttpParams params = new BasicHttpParams();
        String s1 = constructString(SWISS_GERMAN_HELLO);       
        SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, params);
        try {
            outbuf.writeLine(s1);
            fail("Expected CharacterCodingException");
        } catch (CharacterCodingException expected) {
        }
        
        byte[] tmp = s1.getBytes("ISO-8859-1");

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    }


    public void testInputMatchesBufferLength() throws Exception {
        HttpParams params = new BasicHttpParams();
        String s1 = "abcde";        
        SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 5, params);
        outbuf.writeLine(s1);
    }

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        }
    }


    @Test
    public void testWriteLineChunks() throws Exception {
        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(16, 16, null, this.allocator);
        final SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16, null, this.allocator);


        ReadableByteChannel inChannel = newChannel("One\r\nTwo\r\nThree");


        inbuf.fill(inChannel);


        final CharArrayBuffer line = new CharArrayBuffer(64);


        line.clear();
        Assert.assertTrue(inbuf.readLine(line, false));
        Assert.assertEquals("One", line.toString());


        outbuf.writeLine(line);


        line.clear();
        Assert.assertTrue(inbuf.readLine(line, false));
        Assert.assertEquals("Two", line.toString());


        outbuf.writeLine(line);


        line.clear();
        Assert.assertFalse(inbuf.readLine(line, false));


        inChannel = newChannel("\r\nFour");
        inbuf.fill(inChannel);


        line.clear();
        Assert.assertTrue(inbuf.readLine(line, false));
        Assert.assertEquals("Three", line.toString());


        outbuf.writeLine(line);


        inbuf.fill(inChannel);


        line.clear();
        Assert.assertTrue(inbuf.readLine(line, true));
        Assert.assertEquals("Four", line.toString());


        outbuf.writeLine(line);


        line.clear();
        Assert.assertFalse(inbuf.readLine(line, true));


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        final String s = new String(outstream.toByteArray(), "US-ASCII");
        Assert.assertEquals("One\r\nTwo\r\nThree\r\nFour\r\n", s);
    }

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        buffer.append("and stuff like that");
        teststrs[2] = buffer.toString();
        teststrs[3] = "";
        teststrs[4] = "And goodbye";


        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, null, this.allocator);
        for (final String teststr : teststrs) {
            outbuf.writeLine(teststr);
        }
        //this write operation should have no effect
        outbuf.writeLine((String)null);
        outbuf.writeLine((CharArrayBuffer)null);


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        final ReadableByteChannel channel = newChannel(outstream.toByteArray());


        final SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 16, null, this.allocator);
        inbuf.fill(channel);

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        Assert.assertNull(inbuf.readLine(true));
    }


    @Test
    public void testComplexReadWriteLine() throws Exception {
        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16, null, this.allocator);
        outbuf.write(ByteBuffer.wrap(new byte[] {'a', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\r', '\r', '\n'}));
        outbuf.write(ByteBuffer.wrap(new byte[] {'\n'}));


        final StringBuilder buffer = new StringBuilder();
        for (int i = 0; i < 14; i++) {
            buffer.append("a");
        }
        final String s1 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes(Consts.ASCII)));


        buffer.setLength(0);
        for (int i = 0; i < 15; i++) {
            buffer.append("a");
        }
        final String s2 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes(Consts.ASCII)));


        buffer.setLength(0);
        for (int i = 0; i < 16; i++) {
            buffer.append("a");
        }
        final String s3 = buffer.toString();
        buffer.append("\r\n");
        outbuf.write(ByteBuffer.wrap(buffer.toString().getBytes(Consts.ASCII)));


        outbuf.write(ByteBuffer.wrap(new byte[] {'a'}));


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        final ReadableByteChannel channel = newChannel(outstream.toByteArray());


        final SessionInputBuffer inbuf = new SessionInputBufferImpl(1024, 16, null, this.allocator);
        inbuf.fill(channel);

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    @Test
    public void testWriteByteBuffer() throws Exception {
        final byte[] pattern = "0123456789ABCDEF0123456789ABCDEF".getBytes(Consts.ASCII);


        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(4096, 1024, null, this.allocator);
        final ReadableByteChannel src = newChannel(pattern);
        outbuf.write(src);


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel channel = newChannel(outstream);
        while (outbuf.flush(channel) > 0) {
        }
        Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
    }

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    @Test
    public void testWriteFromChannel() throws Exception {
        final byte[] pattern = "0123456789ABCDEF0123456789ABCDEF".getBytes(Consts.ASCII);


        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(4096, 1024, null, this.allocator);
        outbuf.write(ByteBuffer.wrap(pattern, 0, 16));
        outbuf.write(ByteBuffer.wrap(pattern, 16, 10));
        outbuf.write(ByteBuffer.wrap(pattern, 26, 6));


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel channel = newChannel(outstream);
        while (outbuf.flush(channel) > 0) {
        }
        Assert.assertEquals(ByteBuffer.wrap(pattern), ByteBuffer.wrap(outstream.toByteArray()));
    }

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    public void testMultibyteCodedReadWriteLine() throws Exception {
        final String s1 = constructString(SWISS_GERMAN_HELLO);
        final String s2 = constructString(RUSSIAN_HELLO);
        final String s3 = "Like hello and stuff";


        final SessionOutputBuffer outbuf = new SessionOutputBufferImpl(1024, 16,
                Consts.UTF_8.newEncoder(), this.allocator);


        for (int i = 0; i < 10; i++) {
            outbuf.writeLine(s1);
            outbuf.writeLine(s2);
            outbuf.writeLine(s3);
        }


        final ByteArrayOutputStream outstream = new ByteArrayOutputStream();
        final WritableByteChannel outChannel = newChannel(outstream);
        outbuf.flush(outChannel);


        final byte[] tmp = outstream.toByteArray();


        final ReadableByteChannel channel = newChannel(tmp);
        final SessionInputBuffer inbuf = new SessionInputBufferImpl(16, 16,

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