Examples of org.jgroups.util.ByteArrayDataOutputStream

org.jgroups.util.ByteArrayDataOutputStream
Implements {@link java.io.DataOutput} over a byte[] buffer. The byte[] buffer expands when needed; however, itdoesn't double but only expands minimally, to accommodate the additional data. It is therefore recommended to always size the buffer to the actual number of bytes needed. This class is not thread safe. @author Bela Ban @since 3.5

            assert i == read;
        }
    }


    public void testUnsignedShort() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(20);
        out.writeShort(-22);
        out.writeShort(22);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        short num=in.readShort();
        assert num == -22;
        num=in.readShort();
        assert num == 22;

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        val=in.readUnsignedShort();
        assert val == 22;
    }


    public void testChar() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        for(int i=0; i < 500; i++) {
            int ch='a' + i;
            out.writeChar(ch);
        }
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(int i=0; i < 500; i++) {
            char ch=in.readChar();
            assert ch == 'a' + i;
        }
    }

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            assert ch == 'a' + i;
        }
    }


    public void testInt() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        int[] numbers={Integer.MIN_VALUE, -322649, -500, 0, 1, 100, 322649, Integer.MAX_VALUE};
        for(int i: numbers)
            out.writeInt(i);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(int i: numbers) {
            int num=in.readInt();
            assert num == i;
        }
    }

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            assert num == i;
        }
    }


    public void testLong() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        long[] numbers={Long.MIN_VALUE, -322649, -500, 0, 1, 100, 322649, Long.MAX_VALUE};
        for(long i: numbers)
            out.writeLong(i);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(long i: numbers) {
            long num=in.readLong();
            assert num == i;
        }
    }

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            assert num == i;
        }
    }


    public void testCompressedLong() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        long[] numbers={Long.MIN_VALUE, -500, 0, 1, 100, Long.MAX_VALUE};
        for(long i: numbers)
            Bits.writeLong(i, out);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(long i: numbers) {
            long num=Bits.readLong(in);
            assert num == i;
        }
    }

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            assert num == i;
        }
    }


    public void testCompressedLongSequence() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        long[] numbers={0, 1, 100, 322649, Long.MAX_VALUE-1000};
        for(long i: numbers)
            Bits.writeLongSequence(i, i + 100,out);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(long i: numbers) {
            long[] seq=Bits.readLongSequence(in);
            assert Arrays.equals(seq, new long[]{i, i+100});
        }
    }

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            assert Arrays.equals(seq, new long[]{i, i+100});
        }
    }


    public void testFloat() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        float[] numbers={-322649.25f, 100.7531f, 0f, 1f, 2.75f, 3.1425f, 322649f, 322649.75f};
        for(float i: numbers)
            out.writeFloat(i);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(float i: numbers) {
            float num=in.readFloat();
            assert num == i;
        }
    }

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            assert num == i;
        }
    }


    public void testDouble() throws IOException {
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(1024);
        double[] numbers={-322649.25, 100.7531, 0.0, 1.5, 2.75, 3.1425, 322649, 322649.75};
        for(double i: numbers)
            out.writeDouble(i);
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        for(double i: numbers) {
            double num=in.readDouble();
            assert num == i;
        }
    }

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    }




    public void testWriteBytes() {
        String name="Bela";
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(2);
        out.writeBytes(name);
        assert out.position() == name.length();
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        byte[] tmp=new byte[name.length()];
        int read=in.read(tmp, 0, tmp.length);
        assert read == name.length();
        assert name.equals(new String(tmp));
    }

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    }




    public void testWriteChars() throws IOException {
        String name="Bela";
        ByteArrayDataOutputStream out=new ByteArrayDataOutputStream(2);
        out.writeChars(name);
        assert out.position() == name.length() * 2;
        ByteArrayDataInputStream in=new ByteArrayDataInputStream(out.buffer());
        char[] tmp=new char[name.length()];
        for(int i=0; i < name.length(); i++)
            tmp[i]=in.readChar();
        assert name.equals(new String(tmp));

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