/**
 * Copyright (c) 2010 Yahoo! Inc. All rights reserved.
 * 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. See accompanying LICENSE file.
 */
package org.apache.oozie.servlet;

import org.json.simple.JSONObject;
import org.json.simple.JSONArray;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;

public class MyJsonRestServlet extends JsonRestServlet {
    static ResourceInfo[] EMPTY = new ResourceInfo[0];

    static ResourceInfo[] NO_RESOURCE_NO_PARAMS = {
            new ResourceInfo("", Arrays.asList("GET"), Collections.EMPTY_LIST)};

    static ResourceInfo[] PARAMS_REQUIRED = {
            new ResourceInfo("", Arrays.asList("GET"), Arrays.asList(
                    new ParameterInfo("required", Boolean.class, true, Arrays.asList("GET")),
                    new ParameterInfo("optional", Boolean.class, false, Arrays.asList("GET"))))};

    static ResourceInfo[] PARAM_TYPES = {
            new ResourceInfo("", Arrays.asList("GET"), Arrays.asList(
                    new ParameterInfo("boolean", Boolean.class, false, Arrays.asList("GET")),
                    new ParameterInfo("integer", Integer.class, false, Arrays.asList("GET")),
                    new ParameterInfo("string", String.class, false, Arrays.asList("GET"))))};

    static ResourceInfo[] RESOURCE_GET_POST_PARAM_GET = {
            new ResourceInfo("", Arrays.asList("GET", "POST"), Arrays.asList(
                    new ParameterInfo("param", Boolean.class, true, Arrays.asList("GET"))))};

    static ResourceInfo[] FIXED_RESOURCE = {
            new ResourceInfo("resource", Arrays.asList("GET"), Collections.EMPTY_LIST)};

    static ResourceInfo[] WILDCARD_RESOURCE = {
            new ResourceInfo("*", Arrays.asList("GET"), Collections.EMPTY_LIST)};

    static ResourceInfo[] MULTIPLE_RESOURCES = {
            new ResourceInfo("resource1", Arrays.asList("GET"), Collections.EMPTY_LIST),
            new ResourceInfo("resource2", Arrays.asList("POST"), Collections.EMPTY_LIST)};

    static ResourceInfo[] MULTIPLE_RESOURCES_NO_RESOURCE = {
            new ResourceInfo("resource1", Arrays.asList("GET"), Collections.EMPTY_LIST),
            new ResourceInfo("resource2", Arrays.asList("GET"), Collections.EMPTY_LIST),
            new ResourceInfo("", Arrays.asList("POST"), Collections.EMPTY_LIST),
    };

    static ResourceInfo[] MULTIPLE_RESOURCES_WILDCARD = {
            new ResourceInfo("resource1", Arrays.asList("GET"), Collections.EMPTY_LIST),
            new ResourceInfo("resource2", Arrays.asList("GET"), Collections.EMPTY_LIST),
            new ResourceInfo("*", Arrays.asList("POST"), Collections.EMPTY_LIST),
    };

    static ResourceInfo[] CONTENT_TYPE_JSON_CRON_TEST = {
            new ResourceInfo("", Arrays.asList("GET"),
                             Arrays.asList(new ParameterInfo("json", String.class, true, Arrays.asList("GET"))))};

    static ResourceInfo[] ACTIVE = NO_RESOURCE_NO_PARAMS;

    public MyJsonRestServlet() {
        super("my", ACTIVE);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        if (ACTIVE != CONTENT_TYPE_JSON_CRON_TEST) {
            response.setStatus(HttpServletResponse.SC_OK);
        }
        else {
            try {
                stopCron();
                validateContentType(request, "application/xml");
            }
            finally {
                startCron();
            }
            if (request.getParameter("json").equals("object")) {
                JSONObject json = new JSONObject();
                json.put("a", "object");
                sendJsonResponse(response, HttpServletResponse.SC_OK, json);
            }
            else {
                if (request.getParameter("json").equals("array")) {
                    JSONArray json = new JSONArray();
                    json.add("array");
                    sendJsonResponse(response, HttpServletResponse.SC_OK, json);
                }
            }
        }
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setStatus(HttpServletResponse.SC_OK);
    }

}