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seadatanet-connector
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git-svn-id: https://svn.d4science.research-infrastructures.eu/gcube/trunk/data-analysis/SeaDataNetConnector@119852 82a268e6-3cf1-43bd-a215-b396298e98cf

This commit is contained in:
Gianpaolo Coro 2015-10-19 08:38:54 +00:00
parent cde4b2476c
commit 121dc8fdb9
1 changed files with 91 additions and 45 deletions
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136
src/org/gcube/dataanalysis/seadatanet/DivaHTTPClient.java
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@ -1,64 +1,115 @@
package org.gcube.dataanalysis.seadatanet;
import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Scanner;
import java.util.logging.Logger;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.StringReader;
import java.net.HttpURLConnection;
import java.net.URL;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.MultipartEntityBuilder;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.w3c.dom.*;
import org.gcube.contentmanagement.lexicalmatcher.utils.AnalysisLogger;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import java.io.*;
public class DivaHTTPClient {
public static String WEB_HTTP="http://gher-diva.phys.ulg.ac.be/web-vis/Python/web";
public static String postFile(File file) throws Exception {
String crlf = "\r\n";
String twoHyphens = "--";
String boundary = "*****";
public static DivaFilePostResponse uploadFile(File file) throws ClientProtocolException, IOException, ParserConfigurationException, SAXException
HttpURLConnection httpUrlConnection = null;
try {
URL url = new URL(WEB_HTTP+"/upload");
httpUrlConnection = (HttpURLConnection) url.openConnection();
httpUrlConnection.setUseCaches(false);
httpUrlConnection.setDoOutput(true);
httpUrlConnection.setRequestMethod("POST");
httpUrlConnection.setRequestProperty("Connection", "Keep-Alive");
httpUrlConnection.setRequestProperty("Cache-Control", "no-cache");
httpUrlConnection.setRequestProperty(
"Content-Type", "multipart/form-data;boundary=" + boundary);
DataOutputStream request = new DataOutputStream(
httpUrlConnection.getOutputStream());
request.writeBytes("--" + boundary + crlf);
request.writeBytes("Content-Disposition: form-data; name=\"data" + "\";filename=\"" +
file.getName() + "\"" + crlf);
request.writeBytes(crlf);
BufferedReader reader = new BufferedReader(new FileReader(file));
String lineString = reader.readLine();
while (lineString!=null) {
request.writeBytes(lineString);
lineString = reader.readLine();
}
reader.close();
request.writeBytes(crlf);
request.writeBytes(twoHyphens + boundary +
twoHyphens + crlf);
request.flush();
request.close();
InputStream responseStream = new
BufferedInputStream(httpUrlConnection.getInputStream());
BufferedReader responseStreamReader =
new BufferedReader(new InputStreamReader(responseStream));
String line = "";
StringBuilder stringBuilder = new StringBuilder();
while ((line = responseStreamReader.readLine()) != null) {
stringBuilder.append(line).append("\n");
}
responseStreamReader.close();
String response = stringBuilder.toString();
responseStream.close();
httpUrlConnection.disconnect();
AnalysisLogger.getLogger().debug("Response "+response);
return response;
} catch (IOException e) {
throw new Exception(e);
} finally {
if (httpUrlConnection != null)
httpUrlConnection.disconnect();
}
}
public static DivaFilePostResponse uploadFile(File file) throws Exception, IOException, ParserConfigurationException, SAXException
{
String result_xml = null;
try {
result_xml = postFile(file);
} catch (Exception e) {
e.printStackTrace();
}
//connection
CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httppost = new HttpPost(WEB_HTTP+"/upload");
//Creation of MultipartEntity
FileBody bin = new FileBody(file);
HttpEntity reqEntity = MultipartEntityBuilder.create().addPart("data", bin).build();
httppost.setEntity(reqEntity);
//response Server
CloseableHttpResponse response = httpclient.execute(httppost);
Logger.getGlobal().info(response.getStatusLine()+"");
HttpEntity resEntity = response.getEntity();
if (resEntity == null) {
if (result_xml == null) {
throw new SAXException("Error in HTTP response no response element found!");
}
//saving Response into String
String result_xml="";
Scanner scanner=new Scanner(resEntity.getContent());
while(scanner.hasNext())
{
result_xml
+=scanner.nextLine();
}
//Create Document object by XMLResponse
Document doc = loadXMLFromString(result_xml);
@ -79,11 +130,6 @@ public class DivaHTTPClient {
String sessionid=root.getChildNodes().item(15).getTextContent();
EntityUtils.consume(resEntity);
response.close();
httpclient.close();
return new DivaFilePostResponse(obs_x0, obs_x1, obs_y0, obs_y1, obs_v0, obs_v1, obs_count, sessionid);
}
@ -92,7 +138,7 @@ public class DivaHTTPClient {
public static void main(String[] args) throws Exception {
DivaFilePostResponse response=uploadFile(new File("C:"+File.separator+"Users"+File.separator+"marbas"+File.separator+"Desktop"+File.separator+"temperature_argo.txt"));
DivaFilePostResponse response=uploadFile(new File("temperature_argo10.txt"));
System.out.println(response);
}