@Override
public int unpack(ISOComponent m, byte[] b) throws ISOException {
LogEvent evt = new LogEvent(this, "unpack");
int consumed = 0;
ISOComponent c;
// Unpack the fields
while (consumed < b.length) {
// Determine current tag
int i = consumed == 0 && fld[0] != null ? 0 : tagPrefixer.decodeLength(b, consumed);
if (!(i < fld.length) || fld[i] == null)
throw new ISOException("Unsupported sub-field " + i + " unpacking field " + m.getKey());
c = fld[i].createComponent(i);
consumed += fld[i].unpack(c, b, consumed);
if (logger != null) {
evt.addMessage(
"<unpack fld=\"" + i + "\" packager=\"" + fld[i].getClass().getName() + "\">");
evt.addMessage(" <value>" + c.getValue().toString() + "</value>");
evt.addMessage("</unpack>");
}
m.set(c);
}
Logger.log(evt);
return consumed;
}
/**
* @see
* com.newland.message.packager.FieldPackager.iso.ISOFieldPackager#unpack(org.jpos.iso.ISOComponent,
* byte[], int)
*/
public int unpack(IField<?> c, byte[] b, int offset) throws MessageException {
try {
int len = prefixer.decodeLength(b, offset);
if (len == -1) {
// The prefixer doesn't know how long the field is, so use
// maxLength instead
len = getLength();
}
int lenLen = prefixer.getPackedLength();
byte[] unpacked = interpreter.uninterpret(b, offset + lenLen, len);
// logger.debug("当前解析域值：["+CodecUtils.hexString(unpacked)+"]");
((IField<byte[]>) c).setValue(unpacked);
return lenLen + interpreter.getPackedLength(len);
} catch (Exception e) {
throw new MessageException(makeExceptionMessage(c, "unpacking"), e);
}
}
@Override
public int unpack(ISOComponent c, byte[] b, int offset) throws ISOException {
try {
int len = prefixer.decodeLength(b, offset);
if (len == -1) {
// The prefixer doesn't know how long the field is, so use
// maxLength instead
len = getLength(b, offset);
}
int lenLen = prefixer.getPackedLength();
String unpacked = interpreter.uninterpret(b, offset + lenLen, len);
c.setValue(unpacked);
return lenLen + interpreter.getPackedLength(len);
} catch (Exception e) {
throw new ISOException(makeExceptionMessage(c, "unpacking"), e);
}
}
@Override
public byte[] pack(ISOComponent c) throws ISOException {
try {
String data = (String) c.getValue();
// System.out.println(data);
String paddedData = padder.pad(data, getLength());
byte[] rawData =
new byte
[prefixer.getPackedLength()
+ interpreter.getPackedLength(paddedData.getBytes().length)];
prefixer.encodeLength(paddedData.getBytes().length, rawData);
interpreter.interpret(paddedData, rawData, prefixer.getPackedLength());
return rawData;
} catch (Exception e) {
e.printStackTrace();
throw new ISOException(makeExceptionMessage(c, "packing"), e);
}
}
/** Convert the component into a byte[]. */
public byte[] pack(IField<?> c) throws MessageException {
try {
byte[] data = (byte[]) c.getValue();
int packedLength = prefixer.getPackedLength();
if (packedLength == 0) {
if (data.length != getLength()) {
throw new MessageException(
"Binary data length not the same as the packager length ("
+ data.length
+ "/"
+ getLength()
+ ")");
}
}
byte[] ret = new byte[interpreter.getPackedLength(data.length) + packedLength];
prefixer.encodeLength(data.length, ret);
interpreter.interpret(data, ret, packedLength);
return ret;
} catch (Exception e) {
throw new MessageException(makeExceptionMessage(c, "packing"), e);
}
}
