org.rapidoid.serialize.Ser Maven / Gradle / Ivy
/*-
* #%L
* rapidoid-commons
* %%
* Copyright (C) 2014 - 2018 Nikolche Mihajlovski and contributors
* %%
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* #L%
*/
package org.rapidoid.serialize;
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.cls.TypeKind;
import org.rapidoid.util.Msc;
import java.nio.ByteBuffer;
@Authors("Nikolche Mihajlovski")
@Since("5.1.0")
public class Ser extends RapidoidThing {
protected static void writeNum(ByteBuffer buf, int len) {
if (len < 255) {
buf.put(Msc.sbyte(len));
} else {
buf.put(Msc.sbyte(255));
buf.putInt(len);
}
}
protected static int readNum(ByteBuffer buf) {
int len = Msc.ubyte(buf.get());
if (len == 255) {
len = buf.getInt();
}
return len;
}
protected static void writeBytes(ByteBuffer buf, byte[] bytes) {
writeNum(buf, bytes.length);
buf.put(bytes);
}
protected static byte[] readBytes(ByteBuffer buf) {
byte[] bytes = new byte[readNum(buf)];
buf.get(bytes);
return bytes;
}
protected static byte bool2byte(boolean val) {
return (byte) (val ? 1 : 0);
}
protected static boolean byte2bool(byte b) {
return b != 0;
}
protected static TypeKind kind(int kindCode) {
return TypeKind.values()[kindCode];
}
protected static byte code(TypeKind kind) {
int ordinal = kind.ordinal();
assert ordinal < 128;
return (byte) ordinal;
}
}