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    • aQute.json.codec.ByteArrayHandler Maven / Gradle / Ivy

    package aQute.json.codec;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.Map;
import java.util.regex.Pattern;

import aQute.lib.base64.Base64;
import aQute.lib.hex.Hex;

/**
 * Will now use hex for encoding byte arrays
 */
public class ByteArrayHandler extends Handler {
	Pattern ENCODING = Pattern.compile(
			"((:?[\\dA-Za-z][\\dA-Za-z])*)|((:?ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/)+={1,3})");

	@Override
	public void encode(Encoder app, Object object, Map visited) throws IOException, Exception {
		StringHandler.string(app, Hex.toHexString((byte[]) object));
	}

	@Override
	public Object decodeArray(Decoder r) throws Exception {
		ByteArrayOutputStream out = new ByteArrayOutputStream();

		ArrayList list = new ArrayList();
		r.codec.parseArray(list, Byte.class, r);
		for (Object b : list) {
			out.write(((Byte) b).byteValue());
		}
		return out.toByteArray();
	}

	@Override
	public Object decode(Decoder dec, String s) throws Exception {
		boolean hex = true;
		StringBuilder sb = new StringBuilder(s);
		for (int i = sb.length() - 1; i >= 0; i--) {
			char c = sb.charAt(i);
			if (Character.isWhitespace(c))
				sb.delete(i, i + 1);
			else {
				switch (c) {
				case '0':
				case '1':
				case '2':
				case '3':
				case '4':
				case '5':
				case '6':
				case '7':
				case '8':
				case '9':
				case 'A':
				case 'B':
				case 'C':
				case 'D':
				case 'E':
				case 'F':
				case 'a':
				case 'b':
				case 'c':
				case 'd':
				case 'e':
				case 'f':
					break;

				default:
					hex = false;
					break;
				}
			}
		}
		if (hex)
			return Hex.toByteArray(sb.toString());
		else
			return Base64.decodeBase64(sb.toString());
	}
}
    
    
    
    

    




    
    
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