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Servlet-specific additions allowing one to more easily deploy the Stormpath SDK in a servlet-container-based web application.

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/*
 * Copyright 2016 Stormpath, Inc.
 *
 * 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.
 */
package com.stormpath.sdk.servlet.json;

import com.stormpath.sdk.lang.Assert;
import com.stormpath.sdk.lang.Function;
import com.stormpath.sdk.resource.Resource;

import java.util.Map;

/**
 * @since 1.1.0
 */
public class ResourceJsonFunction implements Function {

    private Function> mapFunction;

    private Function jsonFunction;

    public ResourceJsonFunction(Function> mapFunction, Function jsonFunction) {
        Assert.notNull(mapFunction, "mapFunction cannot be null.");
        Assert.notNull(jsonFunction, "jsonFunction cannot be null.");
        this.mapFunction = mapFunction;
        this.jsonFunction = jsonFunction;
    }

    @Override
    public String apply(T resource) {
        if (resource == null) {
            return null;
        }
        Object o = mapFunction.apply(resource);
        return jsonFunction.apply(o);
    }
}