net.duckling.ddl.web.api.APIMobileVersionController.java Source code

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Here is the source code for net.duckling.ddl.web.api.APIMobileVersionController.java

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/*
 * Copyright (c) 2008-2016 Computer Network Information Center (CNIC), Chinese Academy of Sciences.
 * 
 * This file is part of Duckling project.
 *
 * 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 net.duckling.ddl.web.api;

import java.io.IOException;
import java.text.ParseException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.duckling.ddl.common.DucklingProperties;
import net.duckling.ddl.service.mobile.MobileVersionService;
import net.duckling.ddl.service.mobile.MobileVersion;
import net.duckling.ddl.util.JsonUtil;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.log4j.Logger;
import org.json.simple.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("api/mobileVersion")
public class APIMobileVersionController extends APIBaseController {

    private static final Logger LOG = Logger.getLogger(APIMobileVersionController.class);

    @Autowired
    private MobileVersionService mobileVersionService;
    @Autowired
    private DucklingProperties config;

    @RequestMapping
    public void mobileVersion(HttpServletRequest request, HttpServletResponse resp) {
        String type = request.getParameter("type");
        if (toDupdate()) {
            formatDupdate(resp, type);
        } else {
            JSONObject jsonObj = new JSONObject();
            if ("android".equals(type)) {
                type = MobileVersion.TYPE_ANDROID;
            } else if ("ios".equals(type)) {
                type = MobileVersion.TYPE_IOS;
            } else {
                jsonObj.put("result", false);
                jsonObj.put("message", "type=" + type + ";??\"android\"\"ios\"");
                JsonUtil.writeJSONObject(resp, jsonObj);
                return;
            }
            MobileVersion m = mobileVersionService.getLatestVersionByType(type);
            if (m == null) {
                jsonObj.put("result", false);
                jsonObj.put("message", "??");
                JsonUtil.writeJSONObject(resp, jsonObj);
                return;
            }
            jsonObj.put("updateMessage", m.getDescription());
            jsonObj.put("result", true);
            jsonObj.put("version", m.getVersion());
            jsonObj.put("downloadUrl", "http://www.escience.cn/apks/ddl-latest.apk");
            JsonUtil.writeJSONObject(resp, jsonObj);
        }
    }

    private boolean toDupdate() {
        String t = config.getProperty("ddl.mobile.version");
        return !StringUtils.isEmpty(t);
    }

    private void formatDupdate(HttpServletResponse resp, String type) {
        HttpClient dClient = new HttpClient();
        PostMethod method = new PostMethod(getDupdateUrl());
        method.setParameter("type", type);
        method.setParameter("projectName", getProjectName());
        try {
            dClient.executeMethod(method);
            String response = method.getResponseBodyAsString();
            Map<String, Object> map = dealJsonResult(response);
            JSONObject obj = new JSONObject();
            obj.put("updateMessage", map.get("descreption"));
            obj.put("result", map.get("success"));
            obj.put("version", map.get("version"));
            String url = (String) map.get("downloadUrl");
            if (StringUtils.isEmpty(url)) {
                url = "http://www.escience.cn/apks/ddl-latest.apk";
            }
            obj.put("downloadUrl", url);
            obj.put("isForce", map.get("forcedUpdate"));
            JsonUtil.writeJSONObject(resp, obj);
        } catch (HttpException e) {
            LOG.error("", e);
        } catch (IOException e) {
            LOG.error("", e);
        } catch (ParseException e) {
            LOG.error("", e);
        }

    }

    private String getProjectName() {
        return "ddl";
    }

    private Map<String, Object> dealJsonResult(String response) throws ParseException {
        Map<String, Object> result = new HashMap<String, Object>();
        org.json.JSONObject obj = new org.json.JSONObject(response);
        Iterator<String> keys = obj.keys();
        String key = null;
        while (keys.hasNext()) {
            key = keys.next();
            result.put(key, obj.get(key));
        }
        return result;
    }

    private String getDupdateUrl() {
        return config.getProperty("ddl.mobile.version.url");
    }
}