org.xacml4j.v30.marshal.json.GsonUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of xacml-json Show documentation

There is a newer version: 1.4.0

package org.xacml4j.v30.marshal.json;

/*
 * #%L
 * Xacml4J Gson Integration
 * %%
 * Copyright (C) 2009 - 2014 Xacml4J.org
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
import com.google.gson.reflect.TypeToken;

class GsonUtil
{
	/** Private constructor for utility class */
	private GsonUtil() {}

	public static Boolean getAsBoolean(JsonObject o, String memberName, Boolean defaultValue)
	{
        if(o == null){
            return null;
        }
        JsonPrimitive v = o.getAsJsonPrimitive(memberName);
		return (v != null)?v.getAsBoolean():defaultValue;
	}

	public static String getAsString(JsonObject o, String memberName, String defaultValue)
	{
        if(o == null){
            return null;
        }
		JsonPrimitive v = o.getAsJsonPrimitive(memberName);
		return (v != null)?v.getAsString():defaultValue;
	}

	public static  T deserialize(JsonElement e, JsonDeserializationContext context)
	{
		return (e != null)?context.deserialize(e, new TypeToken(){}.getType()):null;
	}
}