ser321.jsonrpc.MediaJavaClientCommand.java Source code

Introduction

Here is the source code for ser321.jsonrpc.MediaJavaClientCommand.java

Source

package ser321.jsonrpc;

import java.io.*;
import java.util.*;
import java.net.URL;
import org.json.JSONObject;
import org.json.JSONArray;

/**
 * Copyright (c) 2015 Tim Lindquist,
 * Software Engineering,
 * Arizona State University at the Polytechnic campus
 * <p/>
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation version 2
 * of the License.
 * <p/>
 * This program is distributed in the hope that it will be useful,
 * but without any warranty or fitness for a particular purpose.
 * <p/>
 * Please review the GNU General Public License at:
 * http://www.gnu.org/licenses/gpl-2.0.html
 * see also: https://www.gnu.org/licenses/gpl-faq.html
 * so you are aware of the terms and your rights with regard to this software.
 * Or, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA
 * <p/>
 * Purpose:
 * A Java class and main method demonstrating an approach to calling
 * JsonRpc methods.
 *
 * This software is meant to run on Debian Wheezy Linux
 * <p/>
 * Ser321 Principles of Distributed Software Systems
 * see http://pooh.poly.asu.edu/Ser321
 * @author Tim Lindquist (Tim.Lindquist@asu.edu) CIDSE - Software Engineering,
 *                       IAFSE, ASU at the Polytechnic campus
 * @date    July, 2015
 **/
public class MediaJavaClientCommand extends Object {
    public String serviceURL;
    public JsonRpcRequestViaHttp server;
    public ArrayList<String> titles;
    public ArrayList<String> videoTitles;
    public ArrayList<String> musicTitles;

    public MediaJavaClientCommand(String serviceURL) {

        videoTitles = new ArrayList<String>();
        titles = new ArrayList<String>();
        musicTitles = new ArrayList<String>();
        this.serviceURL = serviceURL;

        try {
            this.server = new JsonRpcRequestViaHttp(new URL(serviceURL));
        } catch (Exception ex) {
            System.out.println("Malformed URL " + ex.getMessage());
        }
    }

    public void clear() {
        videoTitles.clear();
        titles.clear();
        musicTitles.clear();
    }

    public void getVideoTitles() {
        JSONObject jsonObj = new JSONObject();
        jsonObj.put("id", "1");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "getVideoTitles");
        String jsonStr = jsonObj.toString();
        String resString = "";
        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println(" video we goofed");
        }
        JSONObject res = new JSONObject(resString);
        JSONArray jArray = res.getJSONArray("result");

        for (int i = 0; i < jArray.length(); i++) {
            videoTitles.add(jArray.get(i).toString());
        }

        for (String s : this.videoTitles) {
            System.out.println(s);
        }
    }

    public void getTitles() {
        JSONObject jsonObj = new JSONObject();
        jsonObj.put("id", "2");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "getTitles");
        String jsonStr = jsonObj.toString();
        String resString = "";

        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println("titles we goofed");
        }

        JSONObject res = new JSONObject(resString);
        JSONArray jArray = res.getJSONArray("result");

        for (int i = 0; i < jArray.length(); i++) {
            titles.add(jArray.get(i).toString());
        }
        for (String s : titles) {
            System.out.println(s);
        }
    }

    public void getMusicTitles() {
        JSONObject jsonObj = new JSONObject();
        jsonObj.put("id", "1");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "getMusicTitles");
        String jsonStr = jsonObj.toString();
        String resString = "";

        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println("music we goofed");
        }

        JSONObject res = new JSONObject(resString);
        JSONArray jArray = res.getJSONArray("result");

        for (int i = 0; i < jArray.length(); i++) {
            musicTitles.add(jArray.get(i).toString());
        }
        for (String s : musicTitles) {
            System.out.println(s);
        }
    }

    public void add(JSONObject ob) {
        JSONObject jsonObj = new JSONObject();
        JSONArray jArray = new JSONArray();
        jArray.put(ob);
        jsonObj.put("id", "4");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "add");
        jsonObj.put("params", jArray);
        String jsonStr = jsonObj.toString();
        String resString = "";

        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println("we goofed");
        }

    }

    public void remove(String title)//////////////////////////
    {
        JSONObject jsonObj = new JSONObject();
        JSONArray jArray = new JSONArray();
        jArray.put(title);
        jsonObj.put("id", "6");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "remove");
        jsonObj.put("params", jArray);
        String jsonStr = jsonObj.toString();
        String resString = "";

        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println("we goofed");
        }
    }

    public JSONObject get(String title) {
        JSONObject jsonObj = new JSONObject();
        JSONArray jArray = new JSONArray();
        jArray.put(title);
        jsonObj.put("id", "4");
        jsonObj.put("jsonrpc", "2.0");
        jsonObj.put("method", "get");
        jsonObj.put("params", jArray);
        String jsonStr = jsonObj.toString();
        String resString = "";

        try {
            resString = server.call(jsonStr);
        } catch (Exception e) {
            System.out.println("we goofed");
        }

        JSONObject res = new JSONObject(resString);
        jArray = res.getJSONArray("result");
        res = jArray.getJSONObject(0);
        //System.out.println("exiting get");
        return res;
    }

    public String serviceInfo() {
        return "Service information";
    }

}