GsonUtils.java

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package com.runehive.util;
 
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
 
import java.util.OptionalInt;
 
public enum GsonUtils {
 
    ;
 
    public static final ThreadLocal<Gson> JSON_ALLOW_NULL = ThreadLocal.withInitial(() ->
            new GsonBuilder().disableHtmlEscaping().serializeNulls().create());
    public static final ThreadLocal<Gson> JSON_PRETTY_ALLOW_NULL = ThreadLocal.withInitial(() ->
            new GsonBuilder()
                    .registerTypeAdapter(OptionalInt.class, new OptionalIntAdapter())
                    .setPrettyPrinting()
                    .disableHtmlEscaping()
                    .serializeNulls()
                    .create());
    public static final ThreadLocal<Gson> JSON_PRETTY_NO_NULLS = ThreadLocal.withInitial(() ->
            new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().create());
 
    public static Gson jsonAllowNull() {
        return JSON_ALLOW_NULL.get();
    }
 
    public static Gson jsonPrettyAllowNull() {
        return JSON_PRETTY_ALLOW_NULL.get();
    }
 
    public static Gson jsonPrettyNoNulls() {
        return JSON_PRETTY_NO_NULLS.get();
    }
 
    public static Gson json() {
        return jsonPrettyAllowNull();
    }
 
}