In this case, it would mean to create classes with just program logic and no user I/O
from the classes with user I/O. For example, the servizio method c_Elenco currently
writes a list of files to System.out. The program logic here would be getting the
list of files. The user I/O is printing them to System.out. A class used for a SOAP
service might have a method that returned the list of files in an array. There might
then be a class used by the client application that would call this SOAP method to get
the list, then print the file names to System.out.
Scott Nichol
Do not send e-mail directly to this e-mail address,
because it is filtered to accept only mail from
specific mail lists.
----- Original Message -----
From: "Francesco Dipalo" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, October 20, 2004 1:55 PM
Subject: Re: problems in creating a web service
> What does it mean "to factor a class"?
> ----- Original Message -----
> From: "Scott Nichol" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 20, 2004 7:48 PM
> Subject: Re: problems in creating a web service
>
>
> It looks to me like servizio methods prompt the user for input and write
> stuff to System.out. SOAP does not interact with a user.
>
> The composizione also seems to directly or indirectly interact with
> System.in and System.out. Besides that, it has no methods, just a
> constructor.
>
> To expose some of your logic through SOAP, you need to factor out classes
> that just do computations, file and database I/O, etc. The code that
> interacts with a human needs to be in the client application.
>
> Scott Nichol
>
> Do not send e-mail directly to this e-mail address,
> because it is filtered to accept only mail from
> specific mail lists.
> ----- Original Message -----
> From: "Francesco Dipalo" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Wednesday, October 20, 2004 1:00 PM
> Subject: Re: problems in creating a web service
>
>
> > For example, if I have this java class
> >
> > package javasoap.book.ch4;
> > public class MethodCounter {
> > int _counter;
> > public MethodCounter() {
> > _counter = 0;
> > }
> > public int getCount() {
> > return _counter;
> > }
> > }
> > I create a deployment descriptor file and an application like this to
> > execute the getCount method:
> >
> > package javasoap.book.ch4;
> > import java.net.*;
> > import org.apache.soap.*;
> > import org.apache.soap.rpc.*;
> > public class GetCountApp {
> > public static void main(String[] args)
> > throws Exception {
> >
> > URL url =
> > new URL(
> > "http://localhost:8080/soap/servlet/rpcrouter";);
> >
> > Call call = new Call();
> > call.setTargetObjectURI("urn:CallCounterService");
> > call.setMethodName("getCount");
> > try {
> > Response resp = call.invoke(url, "");
> > Parameter ret = resp.getReturnValue();
> > Object value = ret.getValue();
> > System.out.println("Result is " + value);
> > }
> > catch (SOAPException e) {
> > System.err.println("Caught SOAPException (" +
> > e.getFaultCode() + "): " +
> > e.getMessage());
> > }
> > }
> > }
> >
> > Do you understand now what my purpose is? In my case I want to execute
> > servizio and composizione methods.
> > ----- Original Message -----
> > From: "Scott Nichol" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, October 20, 2004 4:18 PM
> > Subject: Re: problems in creating a web service
> >
> >
> > What exactly do you mean by "transform this software in a web service"?
> > What classes and/or methods to you want to access via SOAP?
> >
> > Scott Nichol
> >
> > Do not send e-mail directly to this e-mail address,
> > because it is filtered to accept only mail from
> > specific mail lists.
> > ----- Original Message -----
> > From: "Francesco Dipalo" <[EMAIL PROTECTED]>
> > To: <[EMAIL PROTECTED]>
> > Sent: Wednesday, October 20, 2004 2:41 AM
> > Subject: problems in creating a web service
> >
> >
> > I have this software:
> >
> >
> > THE APPLICATION_CONTROLLER CLASS
> > import java.io.*;
> > import java.util.*;
> > public class application_controller {
> > public static void main(String [] args) {
> > servizio s = new servizio();
> > composizione c = new composizione(
> > s.c_Nomefile1, s.c_Nomefile2, s.c_Nomefile );
> > }
> > }
> >
> >
> > THE SERVIZIO CLASS
> > import java.io.*;
> > import java.util.*;
> > public class servizio {
> > public static String c_Nomefile;
> > public static String c_Nomefile1;
> > public static String c_Nomefile2;
> > public servizio() {
> > c_Elenco();
> > c_Scelta();
> > }
> > static private void c_Elenco() {
> > System.out.println("ELENCO SERVIZI:");
> > String [] lista = new File(".").list(); //crea lista
> > for(int cx=0; cx<lista.length; cx++)
> > if ( new File(lista[cx]).isFile() ) //verifica se S file
> > if ( lista[cx].toLowerCase().lastIndexOf(".owl") >= 0) //e con
> > estensione .owl
> > System.out.print((" � "+lista[cx]+"
> > ").substring(0,20));
> > }
> > static private String input(String prompt) {
> > String instr = "";
> > try {
> > BufferedReader inp = new BufferedReader(new
> > InputStreamReader(System.in));
> > do {
> > System.out.print(prompt);
> > } while ((instr = inp.readLine()).length() == 0);
> > } catch(Exception e){};
> > if (instr.lastIndexOf(".") < 0) instr += ".owl";
> > return instr;
> > }
> > static public void c_Scelta() {
> > c_Nomefile1 = input("\nServizio principale : ");
> > c_Nomefile2 = input("Servizio da comporre: ");
> > // crea nome file composto
> > c_Nomefile = c_Nomefile1.substring(0,c_Nomefile1.lastIndexOf(".")) +
> > c_Nomefile2;
> > }
> > }
> >
> >
> > THE COMPOSIZIONE CLASS
> > import java.io.*;
> > import java.util.*;
> > public class composizione {
> > public static int c_Comp; // esito della composizione
> > public composizione (String file_1, String file_2, String file_composto)
> {
> > output out = new output();
> > if ( (c_Comp = new metodi_xml(file_2).c_ProceduraTag(file_1)) == 0)
> {
> > out.c_EliminaFile();
> > out.c_ScriviMessaggio();
> > } else {
> > System.out.println("\nFILE COMPOSTO:\n");
> > out.c_StampaFile();
> > out.c_SpostaFile(file_1, file_2, file_composto);
> > }
> > }
> > }
> >
> >
> > THE METODI_XML CLASS
> > import java.io.*;
> > import java.util.*;
> > public class metodi_xml {
> > public static String c_Tabella;
> > final private static String fileTMP = "tmp.owl";
> > final private static xml_pars owl = new xml_pars(); //classe parsing
> > .XML
> > private static String tempor;
> > private static String linea;
> > private static boolean corretto;
> > public metodi_xml (String file) {
> > System.out.print("Apro il file "+file+" ... ");
> > if (! (corretto = owl.load_parsing(file)) )
> > System.out.println("Errore!");
> > else c_CompilaTabella(file);
> > }
> > public static void c_CompilaTabella(String file) { // crea tabella
> > System.out.println("Ok!\nCompilo la tabella...");
> > owl.tag(2); //salta header (tag <?> e tag Ontology)
> > c_Tabella = tempor = "";
> > while(true) {
> > //String tag = owl.ctags();
> > String tag = owl.tags();
> > if (owl.nido < 0) break;
> > tempor += tag; c_AnalisiTag(tag);
> > if (linea.length() > 1) c_Tabella += linea + "\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);
> > }
> > public static int c_ProceduraTag(String file) { // esegue utility
> > int comp=0; String 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) {
> > if (c_Tabella.indexOf(linea) < 0) {
> > //temp += owl.ctag_root(owl.xml_id);
> > temp += owl.tag_root(owl.xml_id);
> > } else {
> > if (tipo == 'C') comp = 1; //...
> > }
> > }
> > } while (owl.nido >= 0);
> > };
> > if (!corretto) { System.out.println("Utility interrotta per
> > errori."); comp = 0; };
> > // if (temp.length() > 0) { //aggiunge intestazione padre
> > owl.reset(); tempor = owl.tags() + owl.tags() +
> > tempor + temp + tag; //}; //temp + tempor + tag;
> //};
> > owl.save_pars(fileTMP, tempor); //crea file temporaneo
> > return comp;
> > }
> > }
> >
> >
> > THE OUTPUT CLASS
> > import java.io.*;
> > import java.util.*;
> > public class output {
> > final private static String fileTMP = "tmp.owl";
> > final private static String cartellaServizi = "servizi";
> > final private static xml_pars owl = new xml_pars(2,8); //classe parsing
> > .XML
> > private static void waitkey() {
> > try {
> > System.out.print("\nPremere INVIO per proseguire...");
> > System.in.read(); System.out.println();
> > } catch(Exception e) {}
> > }
> > public static void c_SpostaFile(String file_1, String file_2, String
> > file_composto) {
> > owl.newdir(cartellaServizi); //se non c'S crea la cartella
> > //new File(cartellaServizi).mkdirs(); new
> File(fileTMP).renameTo(new
> > File(cartellaServizi + "/" + file_composto));
> > if (owl.load_parsing(fileTMP)) {
> > owl.save_parsing(cartellaServizi + "/" + file_composto);
> > c_EliminaFile();
> > owl.load_parsing(file_1); owl.save_parsing(cartellaServizi +
> > "/" + file_1);
> > owl.load_parsing(file_2); owl.save_parsing(cartellaServizi +
> > "/" + file_2);
> > }
> > }
> > public static void c_StampaFile() {
> > int cx=0;
> > if (owl.load_parsing(fileTMP))
> > do { System.out.print(owl.ctags()); if ( ((++cx)&15) == 0)
> > waitkey();
> > } while (owl.nido >= 0 || cx<3);
> > }
> > public static void c_EliminaFile() {
> > owl.delfile(fileTMP); //new File(fileTMP).delete();
> > }
> > public static void c_ScriviMessaggio() {
> > System.out.println("\nI due servizi non sono tra loro
> componibili.");
> > waitkey();
> > }
> > }
> >
> > How can I create the .dd file and the application file to transform this
> > software in a web service? Thanks for the help and excuse for the lenght
> of
> > the message
> >
> >
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> >
> >
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>
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