CBOR Java library

The Concise Binary Object Representation (CBOR) is a data format whose design goals include the possibility of extremely small code size, fairly small message size, and extensibility without the need for version negotiation

Read more in the documentation on ReadTheDocs.

Examples

decode integer

    String input = "1b000000e8d4a51000";
    byte[] bytes = fromHex(input);
    CBORDecoder decoder = new CBORDecoder();
    CBORObject result = decoder.decode(bytes);
    assertTrue(result.val instanceof Long);
    assertEquals(1000000000000L, result.val);

decode bytes

    String input = "5818010203040102030401020304010203040102030401020304";
    byte[] bytes = fromHex(input);
    CBORDecoder decoder = new CBORDecoder();
    CBORObject result = decoder.decode(bytes);
    assertTrue(result.val instanceof byte[]);
    byte[] checkBytes = {0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04};
    byte[] resultBytes = (byte[]) result.val;
    for (int i = 0; i < resultBytes.length; i++) {
        assertEquals(checkBytes[i], resultBytes[i]);
    }

decode array

    String input = "83010203";
    byte[] bytes = fromHex(input);
    CBORDecoder decoder = new CBORDecoder();
    CBORObject result = decoder.decode(bytes);
    assertTrue(result.val instanceof ArrayList);
    ArrayList items = (ArrayList) result.val;
    assertEquals(1L, items.get(0));
    assertEquals(2L, items.get(1));
    assertEquals(3L, items.get(2));

Getting help

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