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

src/org/gcube/dataanalysis/seadatanet/DivaHTTPClient.java

@@ -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.io.InputStream;
-import java.util.logging.Logger;
+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.gcube.contentmanagement.lexicalmatcher.utils.AnalysisLogger;
-import org.apache.http.client.ClientProtocolException;
+import org.w3c.dom.Document;
-import org.apache.http.client.methods.CloseableHttpResponse;
+import org.w3c.dom.Node;
-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.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
+		if (result_xml == null) {
-		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) {
 			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);
 	}