コード例 #1
0
 /** Called by the sax parser when the end of an element is encountered. */
 public void endElement(String namespaceURI, String local, String name) throws SAXException {
   if (name.equals(TagNames.CALLFLOW)) {
     //  Do an integrity check.
     // For every Expect node, there must be
     // a valid event template.
     try {
       callFlow.checkIntegrity();
     } catch (Exception ex) {
       System.out.println(ex.getMessage());
       ex.printStackTrace();
       throw new SAXException(ex.getMessage());
     }
   } else if (name.equals(TagNames.JYTHON_CODE)) {
     if (this.jythonCode != null) {
       JythonInterp jythonInterp = callFlow.getJythonInterp();
       try {
         jythonInterp.exec(this.jythonCode);
       } catch (PyException ex) {
         throw new SAXException(
             "error in evalScript \n" + this.jythonCode + "\n" + ex.getMessage());
       }
       this.jythonCode = null;
     }
   } else if (name.equals(TagNames.EXPECT)) {
     if (this.jythonCode != null) currentExpectNode.setJythonCode(this.jythonCode);
     this.jythonCode = null;
     callFlow.addExpectNode(currentExpectNode);
     currentExpectNode = null;
   } else if (name.equals(TagNames.SIP_REQUEST)) {
     if (this.messageTemplateContext) {
       MessageTemplate msgTemplate = new MessageTemplate(messageTemplate, id, this.jythonCode);
       callFlow.addMessageTemplate(msgTemplate);
       messageTemplate = null;
       this.jythonCode = null;
     }
   } else if (name.equals(TagNames.SIP_RESPONSE)) {
     if (this.messageTemplateContext) {
       MessageTemplate msgTemplate =
           new MessageTemplate(this.messageTemplate, this.id, this.jythonCode);
       callFlow.addMessageTemplate(msgTemplate);
       messageTemplate = null;
       this.jythonCode = null;
     }
   } else if (name.equals(TagNames.GENERATE)) {
     generateContext = false;
     if (generatedMessage.messageType.equals(Attr.SipRequest) && generatedMessage.method == null) {
       System.out.println("Current message node = " + generatedMessage.messageId);
       throw new SAXException("Missing method");
     }
   } else if (name.equals(TagNames.MESSAGE_TEMPLATES)) {
     messageTemplateContext = false;
   }
 }
コード例 #2
0
 /** Constructor. */
 protected XMLContentHandler(String eventFile, String agentFile) {
   myEngine = EventEngine.theStack;
   agentTable = new Hashtable();
   try {
     XMLReader saxParser =
         (XMLReader) Class.forName("org.apache.xerces.parsers.SAXParser").newInstance();
     saxParser.setContentHandler(this);
     saxParser.setFeature("http://xml.org/sax/features/validation", true);
     // parse the xml specification for the event tags.
     saxParser.parse(agentFile);
     saxParser.parse(eventFile);
   } catch (SAXParseException spe) {
     // Error generated by the parser
     System.out.println(
         "\n** Parsing error" + ", line " + spe.getLineNumber() + ", uri " + spe.getSystemId());
     System.out.println("   " + spe.getMessage());
     // Use the contained exception, if any
     Exception x = spe;
     if (spe.getException() != null) x = spe.getException();
     x.printStackTrace();
     System.exit(0);
   } catch (SAXException sxe) {
     // Error generated by this application
     // (or a parser-initialization error)
     Exception x = sxe;
     if (sxe.getException() != null) x = sxe.getException();
     x.printStackTrace();
     System.exit(0);
   } catch (IOException ioe) {
     // I/O error
     ioe.printStackTrace();
     System.exit(0);
   } catch (Exception pce) {
     // Parser with specified options can't be built
     pce.printStackTrace();
     System.exit(0);
   }
 }
コード例 #3
0
  /** Called by the sax parser when the start of an element is encountered. */
  public void startElement(String nameSpaceURI, String local, String name, Attributes attrs)
      throws SAXException {
    try {
      Debug.println("processing " + name);
      if (name.compareTo(TagNames.CALLFLOW) == 0) {
        callFlow = new CallFlow();
        callFlow.instantiateOn = attrs.getValue(Attr.instantiateOn);
        callFlow.description = attrs.getValue(Attr.description);

      } else if (name.compareTo(TagNames.AGENT) == 0) {
        Agent agent = new Agent();
        agent.agentId = attrs.getValue(Attr.agentId);
        agent.userName = attrs.getValue(Attr.userName);
        agent.requestURI = attrs.getValue(Attr.requestURI);
        agent.host = attrs.getValue(Attr.host);
        agent.contactPort = attrs.getValue(Attr.contactPort);
        agent.contactHost = attrs.getValue(Attr.contactHost);
        addAgent(agent);
      } else if (name.compareTo(TagNames.EXPECT) == 0) {
        // Make sure there are no unexpected attributes.
        for (int i = 0; i < attrs.getLength(); i++) {
          String attrname = attrs.getLocalName(i);
          if (attrname.equals(Attr.enablingEvent)
              || attrname.equals(Attr.triggerMessage)
              || attrname.equals(Attr.generatedEvent)
              || attrname.equals(Attr.nodeId)
              || attrname.equals(Attr.onTrigger)
              || attrname.equals(Attr.onCompletion)) continue;
          else
            throw new SAXException(
                "Unkown attribute in expect: nodeId = "
                    + attrs.getValue(Attr.nodeId)
                    + " attribute name =  "
                    + attrname);
        }
        String enablingEvent = attrs.getValue(Attr.enablingEvent);
        String triggerMessage = attrs.getValue(Attr.triggerMessage);
        String generatedEvent = attrs.getValue(Attr.generatedEvent);
        String nodeId = attrs.getValue(Attr.nodeId);
        currentExpectNode = new Expect(callFlow, enablingEvent, generatedEvent, triggerMessage);
        String onTrigger = attrs.getValue(Attr.onTrigger);
        String onCompletion = attrs.getValue(Attr.onCompletion);
        currentExpectNode.onTrigger = onTrigger;
        currentExpectNode.onCompletion = onCompletion;
        currentExpectNode.nodeId = nodeId;
      } else if (name.compareTo(TagNames.SIP_REQUEST) == 0) {
        if (this.messageTemplateContext) {
          // This is a SIPRequest template node.
          for (int i = 0; i < attrs.getLength(); i++) {
            String attrname = attrs.getLocalName(i);
            if (!attrs.getLocalName(i).equals(Attr.templateId))
              throw new SAXException(
                  "Unkown attribute in SIP_REQUEST node " + " attribute name =  " + attrname);
          }
          messageTemplate = new SIPRequest();
          id = attrs.getValue(Attr.templateId);
          jythonCode = null;
        }
      } else if (name.compareTo(TagNames.SIP_RESPONSE) == 0) {
        if (this.messageTemplateContext) {
          messageTemplate = new SIPResponse();
          jythonCode = null;
          for (int i = 0; i < attrs.getLength(); i++) {
            String attrname = attrs.getLocalName(i);
            if (!attrs.getLocalName(i).equals(Attr.templateId))
              throw new SAXException(
                  "Unkown attribute in SIP_REQUEST node " + " attribute name =  " + attrname);
          }
          id = attrs.getValue(Attr.templateId);
        }
      } else if (name.compareTo(TagNames.STATUS_LINE) == 0) {
        String scode = attrs.getValue(Attr.statusCode);
        if (messageTemplateContext) {
          StatusLine statusLine = new StatusLine();
          try {
            int statusCode = Integer.parseInt(scode);
            statusLine.setStatusCode(statusCode);
          } catch (NumberFormatException ex) {
            throw new SAXException(ex.getMessage());
          }
          SIPResponse response = (SIPResponse) this.messageTemplate;
          response.setStatusLine(statusLine);
        } else {
          int statusCode = Integer.parseInt(scode);
          generatedMessage.addStatusLine(statusCode);
        }
      } else if (name.compareTo(TagNames.REQUEST_LINE) == 0) {
        String method = attrs.getValue(Attr.method);
        Debug.println("tagname = " + TagNames.REQUEST_LINE);
        Debug.println("messageTemplateContext = " + messageTemplateContext);
        if (messageTemplateContext) {
          for (int i = 0; i < attrs.getLength(); i++) {
            String attrname = attrs.getLocalName(i);
            if (attrs.getLocalName(i).equals(Attr.requestURI)
                || attrs.getLocalName(i).equals(Attr.method)) continue;
            else
              throw new SAXException(
                  "Unkown attribute in REQUEST_LINE node " + " attribute name =  " + attrname);
          }
          requestLine = new RequestLine();
          requestLine.setMethod(method);
          String requestURI = attrs.getValue(Attr.requestURI);
          StringMsgParser smp = new StringMsgParser();
          if (requestURI != null) {
            try {
              URI uri = smp.parseSIPUrl(requestURI);
              requestLine.setUri(uri);
            } catch (SIPParseException e) {
              throw new SAXException("Bad URL " + requestURI);
            }
          }
          SIPRequest request = (SIPRequest) messageTemplate;
          request.setRequestLine(requestLine);
        } else {
          for (int i = 0; i < attrs.getLength(); i++) {
            String attrname = attrs.getLocalName(i);
            if (attrs.getLocalName(i).equals(Attr.method)
                || attrs.getLocalName(i).equals(Attr.templateId)
                || attrs.getLocalName(i).equals(Attr.agentId)) continue;
            else
              throw new SAXException(
                  "Unkown attribute in REQUEST_LINE node " + " attribute name =  " + attrname);
          }
          String requestURI = attrs.getValue(Attr.requestURI);
          if (requestURI == null) {
            String agentId = attrs.getValue(Attr.agentId);
            if (agentId != null) {
              Agent agent = getAgent(agentId);
              if (agent == null) throw new SAXException("Missing requestURI or agent attribute");
              requestURI = agent.requestURI;
            }
          }
          generatedMessage.addRequestLine(method, requestURI);
        }
      } else if (name.compareTo(TagNames.FROM) == 0) {
        for (int i = 0; i < attrs.getLength(); i++) {
          String attrname = attrs.getLocalName(i);
          if (attrs.getLocalName(i).equals(Attr.displayName)
              || attrs.getLocalName(i).equals(Attr.userName)
              || attrs.getLocalName(i).equals(Attr.host)
              || attrs.getLocalName(i).equals(Attr.agentId)) continue;
          else
            throw new SAXException(
                "Unkown attribute in FROM node " + " attribute name =  " + attrname);
        }
        String displayName = attrs.getValue(Attr.displayName);
        String userName = attrs.getValue(Attr.userName);
        String hostName = attrs.getValue(Attr.host);
        String agentId = attrs.getValue(Attr.agentId);
        if (agentId != null) {
          Agent agent = getAgent(agentId);
          if (agent == null) throw new SAXException("agent not found " + agentId);
          if (displayName == null) displayName = agent.displayName;
          if (userName == null) userName = agent.userName;
          if (hostName == null) hostName = agent.host;
        }

        if (this.messageTemplateContext) {
          From from = new From();
          Address address = new Address();
          address.setDisplayName(displayName);
          URI uri = new URI();
          Host host = new Host();
          host.setHostname(hostName);
          uri.setHost(host);
          uri.setUser(userName);
          address.setAddrSpec(uri);
          from.setAddress(address);
          try {
            messageTemplate.attachHeader(from, false);
          } catch (SIPDuplicateHeaderException ex) {
            throw new SAXException(ex.getMessage());
          }
        } else {
          generatedMessage.addFromHeader(displayName, userName, hostName);
        }

      } else if (name.compareTo(TagNames.TO) == 0) {
        for (int i = 0; i < attrs.getLength(); i++) {
          String attrname = attrs.getLocalName(i);
          if (attrs.getLocalName(i).equals(Attr.templateId)
              || attrs.getLocalName(i).equals(Attr.host)
              || attrs.getLocalName(i).equals(Attr.agentId)
              || attrs.getLocalName(i).equals(Attr.userName)) continue;
          else
            throw new SAXException(
                "Unkown attribute in FROM node " + " attribute name =  " + attrname);
        }
        String displayName = attrs.getValue(Attr.displayName);
        String userName = attrs.getValue(Attr.userName);
        String hostName = attrs.getValue(Attr.host);
        String agentId = attrs.getValue(Attr.agentId);
        if (agentId != null) {
          Agent agent = getAgent(agentId);
          if (agent == null) throw new SAXException("agent not found " + agentId);
          if (displayName == null) displayName = agent.displayName;
          if (userName == null) userName = agent.userName;
          if (hostName == null) hostName = agent.host;
        }
        if (this.messageTemplateContext) {
          To to = new To();
          Address address = new Address();
          address.setDisplayName(displayName);
          URI uri = new URI();
          Host host = new Host();
          host.setHostname(hostName);
          uri.setHost(host);
          uri.setUser(userName);
          address.setAddrSpec(uri);
          to.setAddress(address);
          try {
            messageTemplate.attachHeader(to, false);
          } catch (SIPDuplicateHeaderException ex) {
            throw new SAXException(ex.getMessage());
          }
        } else {
          generatedMessage.addToHeader(displayName, userName, hostName);
        }
      } else if (name.compareTo(TagNames.CALLID) == 0) {
        String lid = attrs.getValue(Attr.localId);
        String host = attrs.getValue(Attr.host);
        if (this.messageTemplateContext) {
          CallID cid = new CallID();
          CallIdentifier cidf = new CallIdentifier(lid, host);
          cid.setCallIdentifier(cidf);
        } else {
          generatedMessage.addCallIdHeader();
        }
      } else if (name.compareTo(TagNames.CONTACT) == 0) {
        for (int i = 0; i < attrs.getLength(); i++) {
          String attrname = attrs.getLocalName(i);
          if (attrs.getLocalName(i).equals(Attr.displayName)
              || attrs.getLocalName(i).equals(Attr.userName)
              || attrs.getLocalName(i).equals(Attr.action)
              || attrs.getLocalName(i).equals(Attr.contactHost)
              || attrs.getLocalName(i).equals(Attr.contactPort)
              || attrs.getLocalName(i).equals(Attr.agentId)
              || attrs.getLocalName(i).equals(Attr.expires)) continue;
          else
            throw new SAXException(
                "Unkown attribute in CONTACT node " + " attribute name =  " + attrname);
        }
        String displayName = attrs.getValue(Attr.displayName);
        String userName = attrs.getValue(Attr.userName);
        String hostName = attrs.getValue(Attr.contactHost);
        String portString = attrs.getValue(Attr.contactPort);
        String expiryTimeString = attrs.getValue(Attr.expires);
        String action = attrs.getValue(Attr.action);
        String agentId = attrs.getValue(Attr.agentId);
        if (action == null) action = "proxy";
        if (agentId != null) {
          Agent agent = getAgent(agentId);
          if (displayName == null) displayName = agent.displayName;
          if (userName == null) userName = agent.userName;
          if (hostName == null) hostName = agent.contactHost;
          if (portString == null) portString = agent.contactPort;
        }

        if (this.messageTemplateContext) {
          // Generating a message template for the expires header.
          ContactList clist = new ContactList();
          Contact contact = new Contact();
          clist.add(contact);
          URI uri = new URI();
          Host host = new Host();
          host.setHostname(hostName);
          uri.setHost(host);
          uri.setUser(userName);

          if (portString != null) {
            int port = new Integer(portString).intValue();
            uri.setPort(port);
          }
          Address address = new Address();
          address.setAddrSpec(uri);
          contact.setAddress(address);
          if (expiryTimeString != null) {
            long expiryTimeSec = new Long(expiryTimeString).longValue();
            contact.setExpires(expiryTimeSec);
          }
          messageTemplate.attachHeader(clist, false);

        } else {
          int port = 5060;
          if (portString != null) port = new Integer(portString).intValue();
          long expiryTimeSec = 3600;
          if (expiryTimeString != null) {
            expiryTimeSec = new Long(expiryTimeString).longValue();
          }
          if (userName == null) throw new Exception("Missing attribute userName");
          if (action == null) action = Attr.proxy;
          String uri;
          if (hostName == null) {
            uri =
                SIPKeywords.SIP
                    + Separators.COLON
                    + userName
                    + Separators.AT
                    + EventEngine.theStack.getHostAddress()
                    + Separators.COLON
                    + EventEngine.theStack.getDefaultPort()
                    + Separators.SEMICOLON
                    + SIPKeywords.TRANSPORT
                    + Separators.EQUALS
                    + EventEngine.theStack.getDefaultTransport();
          } else
            uri =
                SIPKeywords.SIP
                    + Separators.COLON
                    + userName
                    + Separators.AT
                    + hostName
                    + ":"
                    + port;
          generatedMessage.addContactHeader(displayName, uri, expiryTimeSec, action);
        }

      } else if (name.compareTo(TagNames.GENERATE) == 0) {
        generateContext = true;

        if (currentExpectNode == null) {
          throw new SAXException("Bad element nesting.");
        }
        String id = attrs.getValue(Attr.messageId);
        String retransmit = attrs.getValue(Attr.retransmit);
        String delayString = attrs.getValue(Attr.delay);
        int delay = 0;
        if (delayString != null) {
          try {
            delay = Integer.parseInt(delayString);
          } catch (NumberFormatException ex) {
            throw new SAXException("Bad integer value " + delayString);
          }
        }

        generatedMessage = new GeneratedMessage(id, callFlow, currentExpectNode, retransmit);
        generatedMessage.delay = delay;
        currentExpectNode.addGeneratedMessage(generatedMessage);
      } else if (name.compareTo(TagNames.MESSAGE_TEMPLATES) == 0) {
        messageTemplateContext = true;
      } else if (name.compareTo(TagNames.JYTHON_CODE) == 0) {
        this.jythonCode = null;
      } else if (name.compareTo(TagNames.STATE_MACHINE) == 0) {
      } else if (name.compareTo(TagNames.AGENTS) == 0) {
      } else {
        throw new SAXException("Unkown tag " + name);
      }
    } catch (Exception ex) {
      ex.printStackTrace();
      ex.fillInStackTrace();
      throw new SAXException(ex.getMessage());
    }
  }