at.ac.tuwien.dsg.esperstreamprocessing.utils.RestHttpClient.java Source code

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Here is the source code for at.ac.tuwien.dsg.esperstreamprocessing.utils.RestHttpClient.java

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package at.ac.tuwien.dsg.esperstreamprocessing.utils;

import at.ac.tuwien.dsg.esperstreamprocessing.handler.EventHandler;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;

/**
 *
 * @author Jun
 */
public class RestHttpClient {

    private String ip;
    private String port;
    private String resource;
    private String url;

    public RestHttpClient(String ip, String port, String resource) {
        this.ip = ip;
        this.port = port;
        this.resource = resource;
        url = "http://" + ip + ":" + port + resource;

    }

    public RestHttpClient(String url) {
        this.url = url;
    }

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }

    public String getPort() {
        return port;
    }

    public void setPort(String port) {
        this.port = port;
    }

    public String getResource() {
        return resource;
    }

    public void setResource(String resource) {
        this.resource = resource;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public void callPostMethod(List<NameValuePair> paramList) {

        try {

            HttpPost post = new HttpPost(url);

            // add header
            //  post.setHeader("Host", "smartsoc.infosys.tuwien.ac.at");
            //post.setHeader("User-Agent", USER_AGENT);
            //post.setHeader("Connection", "keep-alive");
            post.setHeader("Content-Type", "application/x-www-form-urlencoded");

            // set content
            post.setEntity(new UrlEncodedFormEntity(paramList));
            //    Logger.getLogger(EventHandler.class.getName()).log(Level.INFO, "\nSending 'POST' request to URL : " + url);
            //   Logger.getLogger(EventHandler.class.getName()).log(Level.INFO, "Configuring..");

            //   Logger.getLogger(EventHandler.class.getName()).log(Level.INFO, "Post parameters : " + paramList);

            HttpClient client = HttpClientBuilder.create().build();
            HttpResponse response = client.execute(post);

            int responseCode = response.getStatusLine().getStatusCode();

            Logger.getLogger(RestHttpClient.class.getName()).log(Level.INFO, "Connection : " + url);
            Logger.getLogger(RestHttpClient.class.getName()).log(Level.INFO, "Response Code : " + responseCode);

            BufferedReader rd = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

            StringBuffer result = new StringBuffer();
            String line = "";
            while ((line = rd.readLine()) != null) {
                result.append(line);
            }

            //  Logger.getLogger(EventHandler.class.getName()).log(Level.INFO, result.toString());

        } catch (Exception ex) {

        }

    }
}