com.github.leonardoxh.temporeal.app.service.AbstractService.java Source code

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Here is the source code for com.github.leonardoxh.temporeal.app.service.AbstractService.java

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/*
 * Copyright 2014 Leonardo Rossetto
 * 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.github.leonardoxh.temporeal.app.service;

import android.app.IntentService;

import com.github.leonardoxh.temporeal.app.model.Model;
import com.github.leonardoxh.temporeal.app.utils.JsonUtils;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;

import java.io.IOException;

/**
 * Esta e nossa classe pai dos servicos
 */
public abstract class AbstractService extends IntentService {

    /**
     * Este e o client que vai executar as nossas requisicoes
     */
    protected final OkHttpClient mClient = new OkHttpClient();

    public AbstractService(String name) {
        super(name);
    }

    /**
     * Este metodo vai fazer as requisicoes HTTP para nos
     * enviando o modelo se necessario
     * @param endPoint a URL da requisicao
     * @param model o modelo para enviar note que se este modelo for null iremos fazer um GET
     *              por que temos um padrao no servidor :)
     * @param <T> o tipo do modelo (qualquer um que derive de Model)
     * @return a resposta da URL ou null em caso de falha
     */
    protected <T extends Model> Response makeRequest(String endPoint, T model) {
        try {
            Request.Builder requestBuilder = new Request.Builder();
            requestBuilder.url(endPoint);
            if (model == null) {
                requestBuilder.get();
            } else {
                requestBuilder.post(RequestBody.create(Constants.JSON_MEDIA_TYPE, JsonUtils.toJson(model)));
            }
            return mClient.newCall(requestBuilder.build()).execute();
        } catch (IOException e) {
            /* Essa exception sera lancada caso uma falha na
             * comunicacao aconteca, entao iremos retornar null */
            e.printStackTrace();
        }
        return null;
    }

}