edu.vt.vbi.patric.cache.ENewsGenerator.java Source code

Introduction

Here is the source code for edu.vt.vbi.patric.cache.ENewsGenerator.java

Source

/**
 * ****************************************************************************
 * Copyright 2014 Virginia Polytechnic Institute and State University
 * <p/>
 * 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
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * 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 edu.vt.vbi.patric.cache;

import org.apache.http.client.ResponseHandler;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;

public class ENewsGenerator {

    String sourceURL = "http://enews.patricbrc.org/php/rssAdapter.php";

    private static final Logger LOGGER = LoggerFactory.getLogger(ENewsGenerator.class);

    public void setSourceURL(String url) {
        sourceURL = url;
    }

    public boolean createCacheFile(String filePath) {

        boolean isSuccess = false;

        try (CloseableHttpClient client = HttpClientBuilder.create().build()) {

            HttpGet httpRequest = new HttpGet(sourceURL);
            ResponseHandler<String> responseHandler = new BasicResponseHandler();
            String strResponseBody = client.execute(httpRequest, responseHandler);

            if (strResponseBody.length() > 0) {
                PrintWriter enewsOut = new PrintWriter(new FileWriter(filePath));
                enewsOut.println(strResponseBody);
                enewsOut.close();
            }
            isSuccess = true;
        } catch (IOException e) {
            LOGGER.error(e.getMessage(), e);
        }
        return isSuccess;
    }
}