source: MDService2/trunk/MDService2/src/eu/clarin/cmdi/mdservice/action/Helpers.java @ 627

package eu.clarin.cmdi.mdservice.action;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.xml.sax.SAXException;

public class Helpers {

        private static PrintStream log;
        
        public static Document readFSLS(String infile)
        {
                Document document = null;
                try {
                    DocumentBuilderFactory factory = 
                    DocumentBuilderFactory.newInstance();
                    DocumentBuilder builder = factory.newDocumentBuilder();
                    document = builder.parse(infile);               
                }
                catch (FactoryConfigurationError e) {
                    // unable to get a document builder factory
                        notifyUser(e.getClass() + ": " + e.getLocalizedMessage());
                } 
                catch (ParserConfigurationException e) {
                    // parser was unable to be configured
                        notifyUser(e.getClass() + ": " + e.getLocalizedMessage());                      
                }
                catch (IOException e) {
                    // i/o error
                        notifyUser(e.getClass() + ": io-error " + e.getLocalizedMessage());                     
                } catch (SAXException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
                
                return document;
        }
        
        public static void notifyUser (String msg) {
                if (log== null) { log = System.err; }
                log.println(msg);
                
        }

        public static void copy (InputStream in, OutputStream out) throws IOException, InterruptedException {           
                
                byte[] buffer = new byte[1024];
                int len = in.read(buffer);
                while (len != -1) {
                    out.write(buffer, 0, len);
                    len = in.read(buffer);
                    if (Thread.interrupted()) {
                        throw new InterruptedException();
                    }
                }
        }

}