package org.ssi.util;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import net.sf.json.JSONArray;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
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.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;
public class APIHttpClient {
//Address of the interface
private String apiURL = "";
private Log logger = LogFactory.getLog(this.getClass());
private static final String pattern = "yyyy-MM-dd HH:mm:ss:SSS";
private HttpClient httpClient = null;
private HttpPost method = null;
private long startTime = 0L;
private long endTime = 0L;
private int status = 0;
public APIHttpClient(String url){
if(url != null)
{
this.apiURL = url;
}
if(apiURL != null)
{
httpClient = new DefaultHttpClient();
method = new HttpPost(apiURL);
}
}
public String post(String parameters)
{
String body = null;
logger.info("parameters:" + parameters);
if(method != null & parameters != null && !"".equals(parameters.trim()))
{
JSONArray jsonObject = JSONArray.fromObject(parameters);
logger.info("json:" + jsonObject.toString());
try{
List<NameValuePair> params=new ArrayList<NameValuePair>();
//Creates a NameValuePair array to store the parameters to be passed.
params.add(new BasicNameValuePair("data",parameters));
//Add parameter & NBSP;
method.setEntity(new UrlEncodedFormEntity(params,HTTP.UTF_8));
startTime = System.currentTimeMillis();
//Setting the code & NBSP;
HttpResponse response=httpClient.execute(method);
endTime = System.currentTimeMillis();
int statusCode = response.getStatusLine().getStatusCode();
logger.info("statusCode:" + statusCode);
logger.info(" call API Spend time ( Units: milliseconds ) : " + (endTime - startTime));
if(statusCode != HttpStatus.SC_OK){
logger.error("Method failed:"+response.getStatusLine());
status = 1;
}
//Read the response body
body=EntityUtils.toString(response.getEntity());
}catch(IOException e){
//Network anomaly
logger.error("exception occurred!n"+ExceptionUtils.getFullStackTrace(e));
//Network error
status = 3;
}
finally{
logger.info(" State of calling interface: " + status);
}
}
return body;
}
public int getStatus() {
return status;
}
public void setStatus(int status) {
this.status = status;
}
public long getStartTime() {
return startTime;
}
public long getEndTime() {
return endTime;
}
}