Esempio n. 1
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 /**
  * Create a client transaction from a raw channel.
  *
  * @param transaction is the transport channel to encapsulate.
  */
 public MessageChannel createMessageChannel(SIPTransaction transaction) {
   synchronized (clientTransactions) {
     // New client transaction to return
     SIPTransaction returnChannel = createClientTransaction(transaction.getMessageChannel());
     clientTransactions.add(0, (SIPClientTransaction) returnChannel);
     ((SIPClientTransaction) returnChannel).setViaPort(transaction.getViaPort());
     ((SIPClientTransaction) returnChannel).setViaHost(transaction.getViaHost());
     // Add the transaction timer for the state machine.
     returnChannel.startTransactionTimer();
     return returnChannel;
   }
 }
Esempio n. 2
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  /**
   * Invoked when an error has ocurred with a transaction.
   *
   * @param transactionErrorEvent Error event.
   */
  public synchronized void transactionErrorEvent(SIPTransactionErrorEvent transactionErrorEvent) {
    SIPTransaction transaction = (SIPTransaction) transactionErrorEvent.getSource();

    if (transactionErrorEvent.getErrorID() == SIPTransactionErrorEvent.TRANSPORT_ERROR) {
      // Kill scanning of this transaction.
      transaction.setState(SIPTransaction.TERMINATED_STATE);
      if (transaction instanceof SIPServerTransaction) {
        // let the reaper get him
        ((SIPServerTransaction) transaction).collectionTime = 0;
      }
      transaction.disableTimeoutTimer();
      transaction.disableRetransmissionTimer();
    }
  }
Esempio n. 3
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 /** Remove the transaction from transaction hash. */
 protected void removeTransactionHash(SIPTransaction sipTransaction) {
   SIPRequest sipRequest = sipTransaction.getOriginalRequest();
   if (sipRequest == null) return;
   if (sipTransaction instanceof SIPClientTransaction) {
     synchronized (clientTransactionTable) {
       String key = sipTransaction.getTransactionId();
       clientTransactionTable.remove(key);
     }
   } else if (sipTransaction instanceof SIPServerTransaction) {
     synchronized (serverTransactionTable) {
       String key = sipTransaction.getTransactionId();
       serverTransactionTable.remove(key);
     }
   }
 }
Esempio n. 4
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  /**
   * Find the transaction corresponding to a given request.
   *
   * @param sipMessage request for which to retrieve the transaction.
   * @param isServer search the server transaction table if true.
   * @return the transaction object corresponding to the request or null if no such mapping exists.
   */
  public SIPTransaction findTransaction(SIPMessage sipMessage, boolean isServer) {
    SIPTransaction retval = null;

    if (isServer) {
      Via via = sipMessage.getTopmostVia();
      if (via.getBranch() != null) {
        String key = sipMessage.getTransactionId();

        synchronized (this.serverTransactionTable) {
          retval = (SIPTransaction) serverTransactionTable.get(key);
          if (LogWriter.needsLogging) logMessage("looking for key " + key);
          if (retval != null && retval.isMessagePartOfTransaction(sipMessage)) return retval;
        }
      }
      // Need to scan the table for old style transactions (RFC 2543
      // style)
      synchronized (this.serverTransactions) {
        Iterator<SIPServerTransaction> it = serverTransactions.iterator();
        while (it.hasNext()) {
          SIPServerTransaction sipServerTransaction = (SIPServerTransaction) it.next();
          if (sipServerTransaction.isMessagePartOfTransaction(sipMessage))
            return sipServerTransaction;
        }
      }
    } else {
      Via via = sipMessage.getTopmostVia();
      if (via.getBranch() != null) {
        String key = sipMessage.getTransactionId();
        synchronized (this.clientTransactionTable) {
          retval = (SIPTransaction) clientTransactionTable.get(key);
          if (retval != null && retval.isMessagePartOfTransaction(sipMessage)) return retval;
        }
      }
      // Need to scan the table for old style transactions (RFC 2543
      // style)
      synchronized (this.clientTransactions) {
        Iterator<SIPClientTransaction> it = clientTransactions.iterator();
        while (it.hasNext()) {
          SIPClientTransaction clientTransaction = (SIPClientTransaction) it.next();
          if (clientTransaction.isMessagePartOfTransaction(sipMessage)) return clientTransaction;
        }
      }
    }
    return null;
  }
Esempio n. 5
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 /** Remove transaction. */
 public void removeTransaction(SIPTransaction sipTransaction) {
   if (sipTransaction instanceof SIPServerTransaction) {
     synchronized (serverTransactions) {
       serverTransactions.remove(sipTransaction);
     }
     synchronized (serverTransactionTable) {
       String key = sipTransaction.getTransactionId();
       serverTransactionTable.remove(key);
     }
   } else {
     synchronized (clientTransactions) {
       clientTransactions.remove(sipTransaction);
     }
     synchronized (clientTransactionTable) {
       String key = sipTransaction.getTransactionId();
       clientTransactionTable.remove(key);
     }
   }
 }
Esempio n. 6
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  /**
   * Creates a client transaction to handle a new request. Gets the real message channel from the
   * superclass, and then creates a new client transaction wrapped around this channel.
   *
   * @param nextHop Hop to create a channel to contact.
   */
  public MessageChannel createMessageChannel(int sourcePort, Hop nextHop)
      throws UnknownHostException {
    synchronized (clientTransactions) {
      // New client transaction to return
      SIPTransaction returnChannel;

      // Create a new client transaction around the
      // superclass' message channel
      MessageChannel mc = super.createMessageChannel(sourcePort, nextHop);

      // Superclass will return null if no message processor
      // available for the transport.
      if (mc == null) return null;

      returnChannel = createClientTransaction(mc);
      clientTransactions.add(0, (SIPClientTransaction) returnChannel);
      ((SIPClientTransaction) returnChannel).setViaPort(nextHop.getPort());
      ((SIPClientTransaction) returnChannel).setViaHost(nextHop.getHost());
      // Add the transaction timer for the state machine.
      returnChannel.startTransactionTimer();
      return returnChannel;
    }
  }
Esempio n. 7
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 /** Hash table for quick lookup of transactions. */
 protected void addTransactionHash(SIPTransaction sipTransaction) {
   SIPRequest sipRequest = sipTransaction.getOriginalRequest();
   // Via via = sipRequest.getTopmostVia();
   // Cannot cache old style requests.
   /**
    * if (via.getBranch() == null || ! via.getBranch().toUpperCase().startsWith
    * (SIPConstants.BRANCH_MAGIC_COOKIE.toUpperCase())){ return; }
    */
   if (sipTransaction instanceof SIPClientTransaction) {
     synchronized (clientTransactionTable) {
       String key = sipRequest.getTransactionId();
       clientTransactionTable.put(key, sipTransaction);
     }
   } else {
     synchronized (serverTransactionTable) {
       String key = sipRequest.getTransactionId();
       serverTransactionTable.put(key, sipTransaction);
     }
   }
 }