Examples of java.io.ByteArrayInputStream.available()

java.io.ByteArrayInputStream.available()
Answers a int representing then number of bytes that are available before this ByteArrayInputStream will block. This method returns the number of bytes yet to be read from the underlying byte array. @return the number of bytes available before blocking.

        ByteArrayOutputStream baout = new ByteArrayOutputStream();
        OutputStream out = new YellOnFlushAndCloseOutputStream(baout, false, true);


        int count = CopyUtils.copy(in, out);
        
        assertEquals("Not all bytes were read", 0, in.available());
        assertEquals("Sizes differ", inData.length, baout.size());
        assertTrue("Content differs", Arrays.equals(inData, baout.toByteArray()));
        assertEquals(inData.length, count);
    }

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        Writer writer = new java.io.OutputStreamWriter(out, "US-ASCII");
        
        CopyUtils.copy(in, writer);
        writer.flush();


        assertEquals("Not all bytes were read", 0, in.available());
        assertEquals("Sizes differ", inData.length, baout.size());
        assertTrue("Content differs", Arrays.equals(inData, baout.toByteArray()));
    }


    public void testCopy_inputStreamToWriterWithEncoding() throws Exception {

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    long[] result = new PopulationCodec(codec,codec,codec).decode(expectedResult.length,in);
    assertEquals(expectedResult.length,result.length);
    for(int i=0;i<expectedResult.length;i++) {
      assertEquals(expectedResult[i],result[i]);
    }
    assertEquals(0,in.available());
  }


}

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        ByteArrayOutputStream baout = new ByteArrayOutputStream();
        OutputStream out = new YellOnFlushAndCloseOutputStream(baout, false, true);


        int count = IOUtils.copy(in, out);
        
        assertEquals("Not all bytes were read", 0, in.available());
        assertEquals("Sizes differ", inData.length, baout.size());
        assertTrue("Content differs", Arrays.equals(inData, baout.toByteArray()));
        assertEquals(inData.length,count);
    }

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        IOUtils.copy(in, writer);
        out.off();
        writer.flush();


        assertEquals("Not all bytes were read", 0, in.available());
        assertEquals("Sizes differ", inData.length, baout.size());
        assertTrue("Content differs", Arrays.equals(inData, baout.toByteArray()));
    }


    public void testCopy_inputStreamToWriter_nullIn() throws Exception {

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        IOUtils.copy(in, writer, "UTF8");
        out.off();
        writer.flush();


        assertEquals("Not all bytes were read", 0, in.available());
        byte[] bytes = baout.toByteArray();
        bytes = new String(bytes, "UTF8").getBytes("US-ASCII");
        assertTrue("Content differs", Arrays.equals(inData, bytes));
    }

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        IOUtils.copy(in, writer, null);
        out.off();
        writer.flush();


        assertEquals("Not all bytes were read", 0, in.available());
        assertEquals("Sizes differ", inData.length, baout.size());
        assertTrue("Content differs", Arrays.equals(inData, baout.toByteArray()));
    }


    //-----------------------------------------------------------------------

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    RunCodec runCodec = new RunCodec(1,Codec.UNSIGNED5,Codec.BYTE1);
    ByteArrayInputStream bais = new ByteArrayInputStream(new byte[]{ (byte) 192,0,(byte) 192,0});
    assertEquals(192,runCodec.decode(bais));
    assertEquals(192,runCodec.decode(bais));
    assertEquals(0,runCodec.decode(bais));
    assertEquals(0,bais.available());
    runCodec = new RunCodec(1,Codec.BYTE1,Codec.UNSIGNED5);
    bais = new ByteArrayInputStream(new byte[]{ (byte) 192,0,(byte) 192,0});
    assertEquals(192,runCodec.decode(bais));
    assertEquals(0,runCodec.decode(bais));
    assertEquals(192,runCodec.decode(bais));

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    runCodec = new RunCodec(1,Codec.BYTE1,Codec.UNSIGNED5);
    bais = new ByteArrayInputStream(new byte[]{ (byte) 192,0,(byte) 192,0});
    assertEquals(192,runCodec.decode(bais));
    assertEquals(0,runCodec.decode(bais));
    assertEquals(192,runCodec.decode(bais));
    assertEquals(0,bais.available());
  }
  public void testUnsigned5() throws Exception {
    decode(Codec.UNSIGNED5, new byte[] { 1 }, 1, 0);
    decode(Codec.UNSIGNED5, new byte[] { (byte) 191 }, 191, 0);
    decode(Codec.UNSIGNED5, new byte[] { (byte) 192, 0 }, 192, 0);

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    private void verifyReceivedMessage(Message message) {
        ByteArrayInputStream bis = (ByteArrayInputStream)message.getContent(InputStream.class);
        String response = "<not found>";
        if (bis != null) {
            byte bytes[] = new byte[bis.available()];
            try {
                bis.read(bytes);
            } catch (IOException ex) {
                assertFalse("Read the Destination recieved Message error ", false);
                ex.printStackTrace();

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