com.mycompany.trader.HTTPTransport.java Source code

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Here is the source code for com.mycompany.trader.HTTPTransport.java

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/*
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package com.mycompany.trader;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;

/**
 *
 * @author Olivia
 */
public class HTTPTransport {

    private static String url = "http://104.155.25.165:8080/services/bpc/";

    public static HttpPost createPost(String resource, String data) {
        try {
            HttpPost post = new HttpPost(url + resource);
            StringEntity input = new StringEntity(data);
            input.setContentType("application/json");
            post.setEntity(input);
            return post;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static HttpGet createGet(String resource, String userId, String hashedSig, String timeStamp,
            String nonce) {
        try {
            HttpGet get = new HttpGet(url + resource);
            get.setHeader("Content-Type", "application/json");
            get.addHeader("Authorization", userId + ":" + hashedSig);
            get.addHeader("x-timestamp", timeStamp);
            get.addHeader("nonce", nonce);
            return get;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String sendData(HttpPost data, String header) throws Exception {
        try {

            DefaultHttpClient httpClient = new DefaultHttpClient();

            HttpResponse response = httpClient.execute(data);
            StringBuilder buffer = new StringBuilder();
            BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));

            String output;
            while ((output = br.readLine()) != null) {
                buffer.append(output);
            }
            System.out.println("response from server:");
            System.out.println(buffer.toString());
            if (response.getStatusLine().getStatusCode() != 200
                    && response.getStatusLine().getStatusCode() != 201) {
                buffer.append("error_code:" + response.getStatusLine().getStatusCode());
            }
            httpClient.getConnectionManager().shutdown();

            return buffer.toString();

        } catch (Exception e) {
            //e.printStackTrace();
            throw new Exception("server returned code: " + e.getMessage());
        }

    }

    public static String sendGetReq(HttpGet data) {
        try {

            DefaultHttpClient httpClient = new DefaultHttpClient();

            HttpResponse response = httpClient.execute(data);
            StringBuilder buffer = new StringBuilder();
            BufferedReader br = new BufferedReader(new InputStreamReader((response.getEntity().getContent())));

            String output;
            while ((output = br.readLine()) != null) {
                buffer.append(output);
            }
            System.out.println("response from server:");
            System.out.println(buffer.toString());
            if (response.getStatusLine().getStatusCode() != 200
                    && response.getStatusLine().getStatusCode() != 201) {
                throw new Exception("Failed : HTTP error code : " + response.getStatusLine().getStatusCode());
            }

            httpClient.getConnectionManager().shutdown();
            return buffer.toString();

        } catch (Exception e) {
            return null;
        }

    }

}