Examples of java.util.zip.Deflater.needsInput()

java.util.zip.Deflater.needsInput()
Returns true if the input data buffer is empty and setInput() should be called in order to provide more input. @return true if the input data buffer is empty and setInput()should be called in order to provide more input

    byte byteArray[] = { 1, 3, 4, 7, 8 };
    byte outPutInf[] = new byte[500];
    int x = 0;
    Deflater deflate = new Deflater(1);
    deflate.setInput(byteArray);
    while (!(deflate.needsInput())) {
      x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    deflate.finish();
    while (!(deflate.finished())) {
      x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);

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    byte byteArray[] = { 1, 3, 4, 7, 8 };
    int y = 0;
    int x = 0;
    Deflater deflate = new Deflater(1);
    deflate.setInput(byteArray);
    while (!(deflate.needsInput())) {
      x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    deflate.finish();
    while (!(deflate.finished())) {
      x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);

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    byte outPutBuf[] = new byte[500];
    byte emptyArray[] = new byte[11];
    int x = 0;
    Deflater defEmpty = new Deflater(3);
    defEmpty.setInput(emptyArray);
    while (!(defEmpty.needsInput())) {
      x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    defEmpty.finish();
    while (!(defEmpty.finished())) {
      x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);

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    byte byteArray[] = { 1, 3, 4, 7, 8 };
    byte outPutInf[] = new byte[500];
    int x = 0;
    Deflater deflate = new Deflater(1);
    deflate.setInput(byteArray);
    while (!(deflate.needsInput())) {
      x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    deflate.finish();
    while (!(deflate.finished())) {
      x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);

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    byte byteArray[] = { 1, 3, 4, 7, 8 };
    int y = 0;
    int x = 0;
    Deflater deflate = new Deflater(1);
    deflate.setInput(byteArray);
    while (!(deflate.needsInput())) {
      x += deflate.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    deflate.finish();
    while (!(deflate.finished())) {
      x = x + deflate.deflate(outPutBuf, x, outPutBuf.length - x);

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    byte outPutBuf[] = new byte[500];
    byte emptyArray[] = new byte[11];
    int x = 0;
    Deflater defEmpty = new Deflater(3);
    defEmpty.setInput(emptyArray);
    while (!(defEmpty.needsInput())) {
      x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);
    }
    defEmpty.finish();
    while (!(defEmpty.finished())) {
      x += defEmpty.deflate(outPutBuf, x, outPutBuf.length - x);

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    {
        Deflater def = deflater.get();
        def.reset();
        def.setInput(input, inputOffset, inputLength);
        def.finish();
        if (def.needsInput())
            return 0;


        int offs = outputOffset;
        while (true)
        {

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        int offs = outputOffset;
        while (true)
        {
            offs += def.deflate(output.buffer, offs, output.buffer.length - offs);
            if (def.needsInput())
            {
                return offs - outputOffset;
            }
            else
            {

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    defl.setInput(byteArray);
    defl.finish();


    // needsInput should never return true after finish() is called
    if (System.getProperty("java.vendor").startsWith("IBM")) {
            assertFalse("needsInput() should return false after finish() is called", defl
                    .needsInput());
        }


    while (!defl.finished()) {
            x += defl.deflate(outPutBuf);

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   */
  public void test_needsInput() {
    Deflater defl = new Deflater();
    assertTrue(
        "needsInput give the wrong boolean value as a result of no input buffer",
        defl.needsInput());
    byte byteArray[] = { 1, 2, 3 };
    defl.setInput(byteArray);
    assertFalse(
        "needsInput give wrong boolean value as a result of a full input buffer",
        defl.needsInput());

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