Metacat

import javax.servlet.ServletConfig;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.ServletInputStream;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import javax.servlet.http.HttpUtils;

import javax.servlet.ServletOutputStream;

//import org.ecoinformatics.eml.EMLParser;

import java.io.*;

import java.util.*;

import com.oreilly.servlet.multipart.FilePart;

import com.oreilly.servlet.multipart.MultipartParser;

import com.oreilly.servlet.multipart.ParamPart;

import com.oreilly.servlet.multipart.Part;

import edu.ucsb.nceas.metacat.client.*;

import edu.ucsb.nceas.utilities.IOUtil;

//import edu.ucsb.nceas.metacat.*;

//import edu.ucsb.nceas.metacat.MetaCatUtil;

public class MetUpload extends HttpServlet

{

	 private String insertXML = "";

	 private String metacatUrl =

	 	 "http://knb.lternet.edu:8098/knb/servlet/metacat";

	 private Metacat m;

public void service(HttpServletRequest request, HttpServletResponse response)

        throws IOException

{

	PrintWriter out = null;

	try {

  		int id=0;

		out = response.getWriter();

  		String file = new String("");

		String fileName = null;

		FilePart fPart = null;

      		MultipartParser parser = new MultipartParser((HttpServletRequest)request, 1024 * 1024);

      		//MultipartParser parser = new MultipartParser(request, 1024 * 1024);

      		Part aPart;

		String eml_filename=" ",docid=" ";

	    	Hashtable formElements = new Hashtable();

 	    	while( (aPart = parser.readNextPart()) != null ) {

	      		if( aPart.isParam() == true ) {

          			ParamPart pPart = (ParamPart)aPart;

	        		String field = pPart.getName();

          			String value = pPart.getStringValue();

          			if(field != null) {

		        		if(value == null)

			        		value = "";

            				formElements.put(field, value);

					if (field.equals("docid"))

						docid=value;

		      		}

	      		}

        		else if( aPart.isFile() == true ) {

		      		fPart = (FilePart)aPart;

          			String field = fPart.getName();

		      		fileName = fPart.getFileName();

          			if(fileName != null) {

		        		//write the image to a file

		        		String dir = "/tmp/Upload_data";  

		        		File theFile = new File(dir, fileName);

					fPart.writeTo(theFile);

					eml_filename = dir+"/"+fileName;

		        		formElements.put(field, fileName);

					break;

           			}

        		}

      		}

/*****************************************************/

/* Change for input to metacat */

	HttpSession sess = request.getSession(true);

	String username = null,password=null;

	username = (String)sess.getAttribute("Musername");

	password = (String)sess.getAttribute("Mpassword");

	 //out.println(username);

	 out.println("Username is "+username+" <BR>");

	try {

	       FileReader fr = new FileReader(eml_filename);

	      insertXML = IOUtil.getAsString(fr, true);

	       } catch (IOException ioe) {

	          out.println("Can't read test data to run the test: " + eml_filename);

	    }

	 try {

	       m = MetacatFactory.createMetacatConnection(metacatUrl);

	    } catch (MetacatInaccessibleException mie) {

	             out.println("Metacat connection failed." + mie.getMessage());

	   }

	try {

	           String identifier = docid + ".1";

		   m.login(username, password);

	           String response1 = m.insert(identifier,

	           new StringReader(insertXML), null);

	           out.println(response1);

           } catch (Exception e) {

	                out.println("General exception:\n" + e.getMessage());

       }

/****************************************************/

  	} catch (Exception e) {

		out.println("An error occurred.");

		e.printStackTrace(out);

  	}

	out.flush();

}

}