public Object read(Buffer buf) {
HeaderInfo info = parseHeader(buf);
Object obj = null;
switch (info.type) {
case TYPE_INTEGER:
obj = New.i8((byte) info.value);
break;
case TYPE_I8:
obj = New.i8(buf.readI8());
break;
case TYPE_I16:
obj = New.i16(buf.readI16());
break;
case TYPE_I32:
obj = New.i32(buf.readI32());
break;
case TYPE_I64:
obj = New.i64(buf.readI64());
break;
case TYPE_F32:
obj = New.f32(buf.readF32());
break;
case TYPE_F64:
obj = New.f64(buf.readF64());
break;
case TYPE_STRING:
obj = readString(buf, info.length);
break;
case TYPE_TRUE:
obj = New.bool(true);
break;
case TYPE_FALSE:
obj = New.bool(false);
break;
case TYPE_NULL:
obj = null;
break;
case TYPE_LIST:
obj = readList(buf, info.length);
break;
case TYPE_MAP:
obj = readMap(buf, info.length);
break;
default:
if (W) Log.warn("read variant: unknown type, returning null.");
obj = null;
}
New.release(info);
return obj;
}
public void scan(Buffer buf) {
HeaderInfo info = parseHeader(buf);
int len = info.length;
switch (info.type) {
case TYPE_LIST:
while (len-- > 0) {
scan(buf);
}
break;
case TYPE_MAP:
while (len-- > 0) {
scan(buf); // scan key
scan(buf); // scan value
}
break;
default:
buf.drop(info.length);
break;
}
New.release(info);
}
// return type, length
private HeaderInfo parseHeader(Buffer buf) throws RemoteException {
byte value = buf.readI8();
int h = value & 0xff;
int h1 = h & ~MASK_LENGTH_1;
int h2 = h & ~MASK_LENGTH_2;
int v1 = h & MASK_LENGTH_1;
int v2 = h & MASK_LENGTH_2;
HeaderInfo info = (HeaderInfo) New.get(HeaderInfo.class);
if (value >= -32) {
info.type = TYPE_INTEGER;
info.value = value;
info.length = 0;
return info;
}
switch (h1) {
case TYPE_STRING:
case TYPE_LIST:
info.type = h1;
if (v1 < MASK_LENGTH_1) {
info.length = v1;
} else {
info.length = buf.readI32();
}
return info;
}
switch (h2) {
case TYPE_MAP:
info.type = h2;
if (v2 < MASK_LENGTH_2) {
info.length = v2;
} else {
info.length = buf.readI32();
}
return info;
}
switch (h) {
case TYPE_NULL:
case TYPE_FALSE:
case TYPE_TRUE:
info.type = h;
info.length = 0;
break;
case TYPE_I8:
info.type = h;
info.length = 1;
break;
case TYPE_I16:
info.type = h;
info.length = 2;
break;
case TYPE_I32:
case TYPE_F32:
info.type = h;
info.length = 4;
break;
case TYPE_I64:
case TYPE_F64:
info.type = h;
info.length = 8;
break;
default:
if (W) Log.warn("parsed variant: unknown type, parsed to NULL.");
info.type = TYPE_NULL;
info.length = 0;
}
return info;
}
