Re: problem in a web service

Dont mean to sound like a broken record but
what is happening in xml_pars?

Martin
  ----- Original Message ----- 
  From: Francesco Dipalo 
  To: [email protected] 
  Sent: Monday, January 17, 2005 2:11 PM
  Subject: Re: problem in a web service


  I use only a deployment descriptor file
  TIA
    ----- Original Message ----- 
    From: Martin Gainty 
    To: [email protected] 
    Sent: Monday, January 17, 2005 3:15 PM
    Subject: Re: problem in a web service


    Francesco:

    Can we see the source code for xml_pars
    Also please provide the wsdl you are using

    Molte Grazie,

    Martin-
    001-617-852-7822
      ----- Original Message ----- 
      From: Francesco Dipalo 
      To: [email protected] 
      Sent: Monday, January 17, 2005 6:18 AM
      Subject: problem in a web service


       I have written this .dd file: 
      <isd:service 
         xmlns:isd="http://xml.apache.org/xml-soap/deployment"
         id="urn:Composizione">
         
         <isd:provider type="java"
               scope="Application"
               methods="compone">
           <isd:java class="service_controller"
               static="false"/>
         </isd:provider>
         <isd:faultListener>org.apache.soap.server.DOMFaultListener</isd:faultListener>
         <isd:mappings>
         </isd:mappings>    
      </isd:service>

      this client  ( in %SOAP-HOME%\WEB-INF\classes)

      import java.net.*;
      import java.util.*;
      import java.io.*;
      import org.apache.soap.*;
      import org.apache.soap.rpc.*;

      public class Client {
         static boolean corretto1=false;
         static boolean corretto2=false;
         
         static boolean Copy(String path, String filename) throws Exception {
            boolean flag=false;
            File pathTo = new File(path + filename); 
            File pathFrom = new File(filename);
            try { 
               FileInputStream inputFile = new FileInputStream(pathFrom); 
               int bytes = inputFile.available(); 
               pathTo.createNewFile(); 
               FileOutputStream outputFile = new FileOutputStream(pathTo); 
               int readBytes = 0; 
               while (readBytes < bytes) {   
                  outputFile.write(inputFile.read()); 
                  readBytes++; 
               } 
            inputFile.close(); 
            outputFile.close();
            flag=true; 
            } catch (FileNotFoundException e) { 
              flag=false;
              System.out.println("Il file: " + pathFrom.toString() + ", non esiste!"); 
              e.printStackTrace(); 
            } 
            return flag;
         }

         public static void main(String[] args) throws Exception {
            String c_Nomefile="";
            String c_Nomefile1="";
            String c_Nomefile2="";
            String CATALINA_HOME=System.getProperty("catalina.home"); 
            String [] lista = new File(".").list();
            URL url = new URL("http://localhost:8080/soap/servlet/rpcrouter"); 
            System.out.println("ELENCO SERVIZI:");
            for(int cx=0; cx<lista.length; cx++)
               if ( new File(lista[cx]).isFile() )                           //verifica se è file
                  if ( lista[cx].toLowerCase().lastIndexOf(".owl") >= 0)     //e con estensione owl
                     System.out.println((" * " + lista[cx]+"             ").substring(0,20));
            try {
               do {
                  System.out.print("Servizio principale (digitare anche l'estensione): ");
                  BufferedReader in1= new BufferedReader(new InputStreamReader(System.in));
                  c_Nomefile1 = in1.readLine();
               } while (!(c_Nomefile1.endsWith(".owl")));
               do {
                  System.out.print("Servizio da comporre (digitare anche l'estensione): ");
                  BufferedReader in2= new BufferedReader(new InputStreamReader(System.in));
                  c_Nomefile2 = in2.readLine();
               } while (!(c_Nomefile1.endsWith(".owl")));
               c_Nomefile = c_Nomefile1 + c_Nomefile2; // crea nome file composto
            } catch (Exception e) { e.printStackTrace(); }
            c_Nomefile = c_Nomefile1.substring(0,c_Nomefile1.indexOf('.')) + c_Nomefile2; 
            corretto1=Copy(CATALINA_HOME+"\\bin\\",c_Nomefile1);
            corretto2=Copy(CATALINA_HOME+"\\bin\\",c_Nomefile2);
            if ((corretto1==true) && (corretto2==true)) {
               Call call = new Call();
               call.setTargetObjectURI("urn:Composizione");   
               call.setEncodingStyleURI(Constants.NS_URI_SOAP_ENC);
               Vector params = new Vector();
               params.addElement(new Parameter("file_1", String.class, c_Nomefile1, null));
               params.addElement(new Parameter("file_2", String.class, c_Nomefile2, null));
               params.addElement(new Parameter("file_composto", String.class, c_Nomefile, null));
               params.addElement(new Parameter("path_output", String.class, CATALINA_HOME+"\\webapps\\soap\\WEB-INF\\classes\\", null));
               
               call.setParams(params);
               try {
           call.setMethodName("compone");   
                  Response resp = call.invoke(url, "");
                  if (resp.generatedFault()) {
                     Fault fault = resp.getFault();
                     System.err.println("Generated fault: " + fault);
                  } else {
                     Parameter ret = resp.getReturnValue();
                     Object value = ret.getValue();
                     switch (value.hashCode()) {
                        case 0: System.out.println("I due file non sono componibili"); break;
                        case 1: System.out.println("I due file sono stati composti nel file " +c_Nomefile); break;
                        case -1: System.out.println("Utility interrotta per errori"); break;
                     }
                  }
               } catch (SOAPException e) {
                  System.err.println("Caught SOAPException (" +e.getFaultCode() + "): " +e.getMessage());
               }
            } 
            try { 
               System.out.print("\nPremere INVIO per terminare...\n");
               System.in.read();
            } catch(Exception e) {}
         }
      }

      this service ( in %SOAP-HOME%\WEB-INF\classes)

      import java.io.*;
      //import xml_pars;

      public class service_controller {
       public static int c_Comp;                     //esito della composizione (1=ok, 0=non composto, -1=errore tag)
       public static String tempor;                  //final static String fileTMP = "tmp.owl";

       private static String c_Tabella;
       private static xml_pars owl = new xml_pars();  //classe parsing XML
       private static String linea;
       private static boolean corretto;
       
       //---------------------//
       //     COMPOSIZIONE    //      MAIN
       //---------------------//
       //Costruttori della classe:  //si possono togliere
               public service_controller () { }
               public service_controller (String file_1, String file_2, String file_composto, String path_output) {
                      compone(file_1, file_2, file_composto, path_output);
               }
       public static String get_output() { if (c_Comp <= 0) tempor = ""; return tempor; } //metodo di controllo
       public static int compone0(String file_1, String file_2, String file_composto, String path_output) {
             metodi_xml(file_2); return (c_Comp = c_ProceduraTag(file_1));
       }
       public static int compone(String file_1, String file_2, String file_composto, String path_output) {
             if (compone0(file_1, file_2, file_composto, path_output) <= 0) {

                    System.out.println("\nI due servizi non sono tra loro componibili.");
                    waitkey();

             } else {

                    System.out.println("\nFILE COMPOSTO:\n");
                    int cx = 0; owl.put_parsing(get_output());
                    do {    if ( ((cx++)%16) == 0) waitkey();
                            System.out.print(owl.ctags());
                    } while (owl.nido >= 0 || cx<3);

                    if (path_output.length() > 0) owl.newdir(path_output);       //se non c'S crea la cartella
                    owl.put_parsing(get_output());
                    owl.save_parsing(path_output + "/" + file_composto); //c_EliminaFile(); fare in modo che in path_output compaia il percorso fino a soap
                    //if (file_1.length() > 0) { owl.load_parsing(file_1); owl.save_parsing(path_output + "/" + file_1); }
                    //if (file_2.length() > 0) { owl.load_parsing(file_2); owl.save_parsing(path_output + "/" + file_2); }

             }
            return c_Comp;
       }


       //---------------------//
       //     METODI XML      //      PROCEDURE UTILITY
       //---------------------//
      // Carica un file.owl e lo compila in una tabella di: tipo, nome del tag + \n
       public static void metodi_xml (String file) {
             System.out.print("Apro il file "+file+" ... ");
             if (! (corretto = owl.load_parsing(file)) )
                    System.out.println("Errore!");
             else  {  // crea tabella
                    System.out.println("Ok!\nCompilo la tabella...");
                    owl.tag(2);          //salta header (tag <?> e tag Ontology)
                    c_Tabella = tempor = "";
                    while(true) {
                           c_AnalisiTag(owl.tags()); if (owl.nido < 0) break;
                           if (linea.length() > 1) c_Tabella += linea + "\n";
                           tempor += owl.tag_root(owl.xml_id);
                    }
             }
       }
      // Compila il singolo tag (tipo, nome del tag + \n)
       public static int c_AnalisiTag(String tag) {           // ritorna tipo tag e linea       
             linea = ".";       
             if (owl.si_tag(tag,"<owls:") > 0) {
                    linea = owl.search_true(tag, "owls:Class ", "C") +
                            owl.search_true(tag, "owls:ObjectProperty ", "P") +
                            //owl.search_true(tag, "owls:Ontology ", "O") +
                            linea;
                    if (linea.length() == 1) {
                           System.out.println("Tag sconosciuto: " + tag);
                           corretto = false; };
                    linea += owl.search_tag(tag, "name=");    //"owls:name"
             };
             return linea.charAt(0);
       }
      // Esegue la composizione del file con il file passato in metodi_xml
       public static int c_ProceduraTag(String file) {        // esegue utility
             String temp, tag; int comp = 0; temp = tag = "";
             System.out.print("Apro il file "+file+" ... ");
             if (! owl.load_parsing(file) ) {
                    System.out.println("Errore!"); corretto = false; };
             if (corretto) {
                    System.out.println("Ok!\nAvvio utility...");
                    owl.tag(2);   //salta header (tag <?> e tag Ontology)
                    do {   tag = owl.tags();    //o tag = owl.tag(0);
                           int tipo = c_AnalisiTag(tag);
                           if (linea.length() > 1) {
                              tag = owl.tag_root(owl.xml_id);
                              if (c_Tabella.indexOf(linea) < 0) { temp += tag; }
                                else {  if (tipo=='C') comp = 1;  //...
                              }
                          }
                    } while (owl.nido >= 0);
             }
             if (!corretto) { System.out.println("Utility interrotta per errori."); comp = -1; };
             owl.reset(); //aggiunge intestazione padre
             tempor = owl.tags() + owl.tags() + tempor + temp + tag;
             return comp;
       }


      //---------------------//
      //      OUTPUT         //       PROCEDURE OUTPUT
      //---------------------//
       public static void waitkey() {         // Attende il tasto invio
        try { System.out.print("\nPremere INVIO per proseguire...\n");
              System.in.read(); } catch(Exception e) {}
       }



       //--------------
       // MAIN DI PROVA
       //--------------
       //public static void main(String []argv) {
       //       compone("PROVA1.OWL", "PROVA2.OWL", "prova1prova2.owl", ".");
       //}       

      }

      but I received this exception (the xml_pars.class is in %SOAP-HOME%\WEB-INF\classes)

      Generated fault: [Attributes={}] [faultCode=SOAP-ENV:Server] [faultString=Except
      ion from service object: null] [faultActorURI=/soap/servlet/rpcrouter] [DetailEn
      tries=
      [(0)=<stackTrace>java.lang.NullPointerException
              at xml_pars.tag(Unknown Source)
              at xml_pars.reset(Unknown Source)
              at service_controller.c_ProceduraTag(service_controller.java:104)
              at service_controller.compone0(service_controller.java:23)
              at service_controller.compone(service_controller.java:26)
              at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
              at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
      java:39)
              at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
      sorImpl.java:25)
              at java.lang.reflect.Method.invoke(Method.java:324)
              at org.apache.soap.server.RPCRouter.invoke(RPCRouter.java:146)
              at org.apache.soap.providers.RPCJavaProvider.invoke(RPCJavaProvider.java
      :129)
              at org.apache.soap.server.http.RPCRouterServlet.doPost(RPCRouterServlet.
      java:354)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
              at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
      icationFilterChain.java:247)
              at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
      ilterChain.java:193)
              at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
      alve.java:256)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:643)
              at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
      a:480)
              at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

              at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
      alve.java:191)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:643)
              at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
      a:480)
              at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

              at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:
      2422)
              at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
      ava:180)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:643)
              at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatche
      rValve.java:171)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:641)
              at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
      ava:163)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:641)
              at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
      a:480)
              at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

              at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
      ve.java:174)
              at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContex
      t.invokeNext(StandardPipeline.java:643)
              at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
      a:480)
              at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)

              at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:19
      9)
              at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
      :828)
              at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
      ssConnection(Http11Protocol.java:700)
              at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
      :584)
              at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
      ool.java:683)
              at java.lang.Thread.run(Thread.java:534)
      </stackTrace>]
      ] [FaultEntries=]

      Why? Can anyone help me?
      TIA
      TIA




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