soapclient4xg.java

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     /** 
      * SOAPClient4XG. Read the SOAP envelope file passed as the second
      * parameter, pass it to the SOAP endpoint passed as the first parameter, and
      * print out the SOAP envelope passed as a response.  with help from Michael
      * Brennan 03/09/01
      * 
      *
      * @author  Bob DuCharme
      * @version 1.1
      * @param   SOAPUrl      URL of SOAP Endpoint to send request.
      * @param   xmlFile2Send A file with an XML document of the request.  
      *
      * 5/23/01 revision: SOAPAction added
     */
     
     import java.io.*;
     import java.net.*;
     
     public class SOAPClient4XG {
         public static void main(String[] args) throws Exception {
     
             if (args.length  < 2) {
                 System.err.println("Usage:  java SOAPClient4XG " +
                                    "http://soapURL soapEnvelopefile.xml" +
                                    " [SOAPAction]");
     				System.err.println("SOAPAction is optional.");
                 System.exit(1);
             }
     
             String SOAPUrl      = args[0];
             String xmlFile2Send = args[1];
     
     		  String SOAPAction = "";
             if (args.length  > 2) 
     				SOAPAction = args[2];
     		  
             // Create the connection where we're going to send the file.
             URL url = new URL(SOAPUrl);
             URLConnection connection = url.openConnection();
             HttpURLConnection httpConn = (HttpURLConnection) connection;
     
             // Open the input file. After we copy it to a byte array, we can see
             // how big it is so that we can set the HTTP Cotent-Length
             // property. (See complete e-mail below for more on this.)
     
             FileInputStream fin = new FileInputStream(xmlFile2Send);
     
             ByteArrayOutputStream bout = new ByteArrayOutputStream();    
     
             // Copy the SOAP file to the open connection.
             copy(fin,bout);
             fin.close();
           
             byte[] b = bout.toByteArray();
     
             // Set the appropriate HTTP parameters.
             httpConn.setRequestProperty( "Content-Length",
                                          String.valueOf( b.length ) );
             httpConn.setRequestProperty("Content-Type","text/xml; charset=utf-8");
     		  httpConn.setRequestProperty("SOAPAction",SOAPAction);
             httpConn.setRequestMethod( "POST" );
             httpConn.setDoOutput(true);
             httpConn.setDoInput(true);
        
             // Everything's set up; send the XML that was read in to b.
             OutputStream out = httpConn.getOutputStream();
             out.write( b );    
             out.close();
     
             // Read the response and write it to standard out.
     
             InputStreamReader isr =
                 new InputStreamReader(httpConn.getInputStream());
             BufferedReader in = new BufferedReader(isr);
     
             String inputLine;
     
             while ((inputLine = in.readLine()) != null)
                 System.out.println(inputLine);
     
             in.close();
         }
     
     
       // copy method from From E.R. Harold's book "Java I/O"
       public static void copy(InputStream in, OutputStream out) 
        throws IOException {
     
         // do not allow other threads to read from the
         // input or write to the output while copying is
         // taking place
         
         synchronized (in) {
           synchronized (out) {
     
             byte[] buffer = new byte[256];
             while (true) {
               int bytesRead = in.read(buffer);
               if (bytesRead == -1) break;
               out.write(buffer, 0, bytesRead);
             }
           }
         }
       }
}