mirror of
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77 lines
2.0 KiB
Markdown
77 lines
2.0 KiB
Markdown
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# Binary data to JSON format converter
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This bundle can be used to convert binary data to JSON format.
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This bundle utilize awesome Java Binary Block Parser. See more details about the library and parse rule syntax from page [Java Binary Block Parser](https://github.com/raydac/java-binary-block-parser">https://github.com/raydac/java-binary-block-parser).
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Example usage:
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```java
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// @formatter:off
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/*
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* Frame format:
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* +----+----+-----+-----+-----+-------+-----+----+-------+
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* | CC | 64 | F | <D> | <S> | <LEN> | <DATA> | <CRC> |
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* +----+----+-----+-----+-----+-------+-----+----+-------+
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* |<------------------ HDR ---------->|
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* |<----- LEN ------>|
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* |<-------------------- CRC -------------->|
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*
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*/
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String frameParserRule =
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"ubyte cc;" // 0xCC, 204
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+ "ubyte start;" // 0x64, 100
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+ "ubyte flag;" // 0x85, 133
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+ "ubyte destinationAddress;" // 0xFD, 253
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+ "ubyte sourceAddress;" // 0x0A, 10
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+ "ubyte dataLen;" // 0x0B, 11
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+ "ubyte[dataLen] data;" // 0x2101A0010000030A040000, 33 1 160 1 0 0 3 10 4 0 0
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+ "ushort crc;"; // 0x8C17, 35863
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final byte[] testdata = new byte[] {
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(byte) 0xCC,
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(byte) 0x64,
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(byte) 0x85,
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(byte) 0xFD,
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(byte) 0x0A,
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(byte) 0x0B,
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(byte) 0x21, (byte) 0x01, (byte) 0xA0, (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x03, (byte) 0x0A, (byte) 0x04, (byte) 0x00, (byte) 0x00,
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(byte) 0x8C, (byte) 0x17 };
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// @formatter:on
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JsonObject json = new Bin2Json(frameParserRule).convert(testdata);
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logger.debug(json.toString());
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```
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Outputs:
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```javascript
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{
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"cc": 204,
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"start": 100,
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"flag": 133,
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"destinationaddress": 253,
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"sourceaddress": 10,
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"datalen": 11,
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"data": [
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33,
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1,
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160,
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1,
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0,
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0,
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3,
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10,
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4,
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0,
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0
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],
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"crc": 35863
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}
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```
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