org.rexify.eclipse.helper.InternetHelper.java Source code

Introduction

Here is the source code for org.rexify.eclipse.helper.InternetHelper.java

Source

/**
 * Eclipse Plugin to run Rex Tasks from within Eclipse.
 *
 * Copyright (C) 2013  Jan Gehring <jan.gehring@gmail.com>
 * 
 * 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; either version 2
 * 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 Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.rexify.eclipse.helper;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import org.rexify.eclipse.model.TemplateModel;

public class InternetHelper {

    static public HashMap<String, TemplateModel> getTemplates() {
        HashMap<String, TemplateModel> ret = new HashMap<String, TemplateModel>();
        JSONParser parser = new JSONParser();

        try {
            Object obj = parser.parse(GET("http://templates.rexify.org/index.json"));
            JSONArray arr = (JSONArray) obj;

            @SuppressWarnings("rawtypes")
            Iterator iter = arr.iterator();

            while (iter.hasNext()) {
                JSONObject entry = (JSONObject) iter.next();

                System.out.println(entry.get("name"));

                ret.put(entry.get("name").toString(),
                        new TemplateModel(entry.get("name").toString(), entry.get("template").toString()));
            }
        } catch (ParseException ex) {
            // display error message
            System.out.println(ex);
        }

        return ret;
    }

    static public String GET(String url) {
        HttpClient client = new DefaultHttpClient();
        HttpGet httpget = new HttpGet(url);

        try {
            HttpResponse resp = client.execute(httpget);
            HttpEntity entity = resp.getEntity();

            if (entity != null) {
                InputStream content_stream = entity.getContent();
                return InternetHelper.convertStreamToString(content_stream);
            } else {
                // Use a sane fallback
                return "[{\"name\": \"Empty Skeleton\", \"template\": \"# Rexfile\nuse Rex -base;\n\"}]";
            }
        } catch (ClientProtocolException pro_ex) {
            // display error message
            System.out.println(pro_ex);
        } catch (IOException io_ex) {
            // display error message
            System.out.println(io_ex);
        }

        // Use a sane fallback
        return "[{\"name\": \"Empty Skeleton\", \"template\": \"# Rexfile\nuse Rex -base;\n\"}]";
    }

    static public String convertStreamToString(InputStream is) {
        java.util.Scanner s = new java.util.Scanner(is).useDelimiter("\\A");
        return s.hasNext() ? s.next() : "";
    }

}