Examples of javax.imageio.stream.ImageInputStream.seek()

Class javax.imageio.stream.ImageInputStream

Examples of javax.imageio.stream.ImageInputStream.seek()

javax.imageio.stream.ImageInputStream.seek()
Sets the current stream position to the desired location. The next read will occur at this location. The bit offset is set to 0.
An IndexOutOfBoundsException will be thrown if pos is smaller than the flushed position (as returned by getflushedPosition).
It is legal to seek past the end of the file; an java.io.EOFException will be thrown only if a read is performed. @param pos a long containing the desired filepointer position. @exception IndexOutOfBoundsException if pos is smallerthan the flushed position. @exception IOException if any other I/O error occurs.

        h.check(i.getByteOrder() == ByteOrder.BIG_ENDIAN);


        h.check(i.read() == 114);
        i.seek(0);
        h.check(i.readBoolean() == true);
        i.seek(0);
        h.check(i.readByte() == 114);
        i.seek(0);
        h.check(i.readChar() == '\u7270');
        i.seek(0);
        h.check(Double.compare(i.readDouble(), 1.709290273164385E243) == 0);

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        bs = new ByteArrayInputStream(b);
        i = new MemoryCacheImageInputStream(bs);


        // Test readBits().
        i.seek(5);
        i.setBitOffset(6);


        exceptionThrown = false;
        try
          {

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          }
        h.check(exceptionThrown);


        h.check(i.readBits(59) == 366848453836545810L);


        i.seek(5);
        i.setBitOffset(6);
        h.check(i.readBits(58) == 183424226918272905L);


        b = new byte[]
          {

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        bs = new ByteArrayInputStream(b);
        i = new MemoryCacheImageInputStream(bs);


        long[] res = new long[8];


        i.seek(0);


        h.check(i.readBits(0) == 0);
        i.seek(0);


        for (k = 0; k < 8; k++)

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        long[] res = new long[8];


        i.seek(0);


        h.check(i.readBits(0) == 0);
        i.seek(0);


        for (k = 0; k < 8; k++)
          {
            i.setBitOffset(k);
            res[k] = i.readBits(8);

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        for (k = 0; k < 8; k++)
          {
            i.setBitOffset(k);
            res[k] = i.readBits(8);
            i.seek(0);
          }
        i.seek(0);
        h.check(Arrays.equals(res, new long[] { 162, 68, 136, 16,
                                                32, 64, 128, 1 }));

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          {
            i.setBitOffset(k);
            res[k] = i.readBits(8);
            i.seek(0);
          }
        i.seek(0);
        h.check(Arrays.equals(res, new long[] { 162, 68, 136, 16,
                                                32, 64, 128, 1 }));


        // 64 bytes of data.
        b = new byte[]

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        bs = new ByteArrayInputStream(b);
        i = new MemoryCacheImageInputStream(bs);


        // Test mark() and reset().
        i.seek(17);
        h.check(i.getStreamPosition() == 17);
        i.mark();
        i.seek(49);
        h.check(i.getStreamPosition() == 49);
        i.reset();

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        // Test mark() and reset().
        i.seek(17);
        h.check(i.getStreamPosition() == 17);
        i.mark();
        i.seek(49);
        h.check(i.getStreamPosition() == 49);
        i.reset();
        h.check(i.getStreamPosition() == 17);


        // Test skipBytes().

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        i.skipBytes(20);
        h.check(i.getStreamPosition() == 37);
        h.check(i.getBitOffset() == 0);


        // Test readUTF().
        i.seek(12);
        String str = i.readUTF();
        h.check(str.codePointAt(0) == 18);
        h.check(str.codePointAt(1) == 33);


        b = new byte[]

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