com.jarvis.cache.serializer.StringSerializer Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of autoload-cache-serializer-api Show documentation

The serializer module of autoload-cache project

There is a newer version: 7.2.1

Show newest version

package com.jarvis.cache.serializer;

import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

/**
 * Simple String to byte[] (and back) serializer. Converts Strings into bytes
 * and vice-versa using the specified charset (by default UTF-8).
 * 
 * Useful when the interaction with the Redis happens mainly through Strings.
 * 
 * 
 * Does not perform any null conversion since empty strings are valid
 * keys/values.
 * 
 *
 *
 */
public class StringSerializer implements ISerializer {

    private final Charset charset;

    public StringSerializer() {
        this(StandardCharsets.UTF_8);
    }

    public StringSerializer(Charset charset) {
        this.charset = charset;
    }

    @Override
    public String deserialize(byte[] bytes, Type returnType) {
        return (bytes == null ? null : new String(bytes, charset));
    }

    @Override
    public byte[] serialize(String string) {
        return (string == null ? null : string.getBytes(charset));
    }

    @Override
    public Object deepClone(Object obj, final Type type) {
        if (null == obj) {
            return obj;
        }
        String str = (String) obj;
        return String.copyValueOf(str.toCharArray());
    }

    @Override
    public Object[] deepCloneMethodArgs(Method method, Object[] args) {
        return (Object[]) deepClone(args, null);
    }
}