Examples of org.apache.ode.bpel.common.CorrelationKey

org.apache.ode.bpel.common.CorrelationKey

Message correlation key. Correlation keys are used to match up incoming messages with a particular process instance. The basic procedure is to generate and save a correlation key when a receive or pick activity is activated, and then to match incoming messages against all correlation keys so saved, finally associating the message with the process instance that had the matching correlation key. In reality this process is somewhat more complicated as pains must be taken to avoid race conditions and to make the matching efficient.
The correlation keys used in the above process consists of a collection of name-value pairs, with the name corresponding to a property name (as defined using the <property> element of the BPEL process document) and with the value corresponding to the value of said property as obtained from a message by means of a property alias (as defined using the <propertyAlias;> BPEL process document element).



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322                 throw new InvalidMessageException(emsg, fe);
            }
            values[jIdx] = value;
        }


        CorrelationKey key = new CorrelationKey(cset.getId(), values);
        return key;
    }

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627             OProcess.OProperty property = cset.declaration.properties.get(i);
            propValues[i] = readProperty(variable, property);
            propNames[i] = property.name.toString();
        }


        CorrelationKey ckeyVal = new CorrelationKey(cset.declaration.getId(), propValues);
        writeCorrelation(cset, ckeyVal);
    }

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330         ArrayList<CorrelationKey> correlationKeys = new ArrayList<CorrelationKey>();
        if (_correlationKeys != null) {
            if (_correlationKeys.indexOf("^") > 0) {
                for (StringTokenizer tokenizer = new StringTokenizer(_correlationKeys, "^"); tokenizer.hasMoreTokens();) {
                    String corrStr = tokenizer.nextToken();
                    correlationKeys.add(new CorrelationKey(corrStr));
                }
                return correlationKeys;
            } else correlationKeys.add(new CorrelationKey(_correlationKeys));
        }
        return correlationKeys;
    }

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152   
  private ProcessInstanceDAO createProcessInstance(ProcessDAO process, CorrelatorDAO corr) throws SAXException, IOException {
    ProcessInstanceDAO pi = null;
    String[] actions = { "action1","action2" };
    String[] correlationKeys = { "key1", "key2" };
    CorrelationKey key1 = new CorrelationKey(1,correlationKeys);
    CorrelationKey key2 = new CorrelationKey(2,correlationKeys);
    CorrelationKey[] corrkeys = {key1,key2}; 
    QName[] names = { new QName(TEST_NS,"name1"), new QName(TEST_NS,"name2") };


        pi = process.createInstance(corr);
    

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157 
        if (matchCorrelations.isEmpty() && !_opick.createInstanceFlag) {
            // Adding a route for opaque correlation. In this case,
            // correlation is on "out-of-band" session-id
            String sessionId = getBpelRuntimeContext().fetchMySessionId(pLinkInstance);
            keySet.add(new CorrelationKey("-1", new String[] { sessionId }));
        } else if (!matchCorrelations.isEmpty()) {
            for( OScope.CorrelationSet cset : matchCorrelations ) {
                CorrelationKey key = null;


                if(!getBpelRuntimeContext().isCorrelationInitialized(
                    _scopeFrame.resolve(cset))) {
                    if (!_opick.createInstanceFlag) {
                        throw new FaultException(_opick.getOwner().constants.qnCorrelationViolation,

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138                     keySet.add(getBpelRuntimeContext().readCorrelation(_scopeFrame.resolve(cset)));
                }
                if( keySet.isEmpty() ) {
                    // Adding a route for opaque correlation. In this case correlation is done on "out-of-band" session id.
                    String sessionId = getBpelRuntimeContext().fetchMySessionId(pLinkInstance);
                    keySet.add(new CorrelationKey("-1", new String[] {sessionId}));
                }


                selector =  new Selector(0,pLinkInstance,_oevent.operation.getName(), _oevent.operation.getOutput() == null, _oevent.messageExchangeId, keySet, _oevent.route);
                getBpelRuntimeContext().select(pickResponseChannel, null, false, new Selector[] { selector} );
                instance(new WAITING(pickResponseChannel));

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356         if (correlationFilter != null) {
            ExtensionCorrelationFilter extCorFilter =
                    createExtensionCorrelationFilterImplementation(correlationFilter);        


            if (extCorFilter != null) {
                CorrelationKey extensionKey = new CorrelationKey("-1",
                        extCorFilter.computeCorrelationValues(mex.getRequest().getMessage(),
                                                              mex.getRequest().getHeader()));
                keySet.add(extensionKey);
            }
        }


        Set<OScope.CorrelationSet> csets = _plinkDef.getNonInitiatingCorrelationSetsForOperation(operation);
        for (OScope.CorrelationSet cset : csets) {
            CorrelationKey key = computeCorrelationKey(cset,
                    _process.getOProcess().messageTypes.get(msgDescription.getQName()), msg, headerParts);
            keySet.add(key);
        }


        csets = _plinkDef.getJoinningCorrelationSetsForOperation(operation);
        for (OScope.CorrelationSet cset : csets) {
            CorrelationKey key = computeCorrelationKey(cset,
                    _process.getOProcess().messageTypes.get(msgDescription.getQName()), msg, headerParts);
            keySet.add(key);
        }


        // Let's creata a key based on the sessionId
        String mySessionId = mex.getProperty(MessageExchange.PROPERTY_SEP_MYROLE_SESSIONID);
        if (mySessionId != null)
            keySet.add(new CorrelationKey("-1", new String[] { mySessionId }));


        return keySet;
    }

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395     }


    @SuppressWarnings("unchecked")
    private CorrelationKey computeCorrelationKey(OScope.CorrelationSet cset, OMessageVarType messagetype,
            Element msg, Map<String, Node> headerParts) {
      CorrelationKey key = null;
      
        String[] values = new String[cset.properties.size()];


        int jIdx = 0;
        for (Iterator j = cset.properties.iterator(); j.hasNext(); ++jIdx) {
            OProcess.OProperty property = (OProcess.OProperty) j.next();
            OProcess.OPropertyAlias alias = property.getAlias(messagetype);


            if (alias == null) {
                // TODO: Throw a real exception! And catch this at compile
                // time.
                throw new IllegalArgumentException("No alias matching property '" + property.name
                        + "' with message type '" + messagetype + "'");
            }


            String value;
            try {
                value = _process.extractProperty(msg, headerParts, alias, msg.toString());
            } catch (FaultException fe) {
                String emsg = __msgs.msgPropertyAliasDerefFailedOnMessage(alias.getDescription(), fe.getMessage());
                __log.error(emsg, fe);
                throw new InvalidMessageException(emsg, fe);
            }
            values[jIdx] = value;
        }


        if( cset.hasJoinUseCases ) {
            key = new OptionalCorrelationKey(cset.name, values);
        } else {
            key = new CorrelationKey(cset.name, values);
        }


        return key;
    }

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634             OProcess.OProperty property = cset.declaration.properties.get(i);
            propValues[i] = readProperty(variable, property);
            propNames[i] = property.name.toString();
        }


        CorrelationKey ckeyVal = new CorrelationKey(cset.declaration.name, propValues);
        writeCorrelation(cset, ckeyVal);
    }

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1680                                    notificationChannelId);
        }


        ProcessDAO processDao = _dao.getProcess();
        CorrelatorDAO notificationCorrelator = processDao.getCorrelator(correlatorId);
        CorrelationKey notificationCorrelationKey = new CorrelationKey("-1", correlationValues);
        CorrelationKeySet correlationKeySet = new CorrelationKeySet();
        correlationKeySet.add(notificationCorrelationKey);
        notificationCorrelator.addRoute(notificationChannelId, _dao, 0, correlationKeySet, "one");
        scheduleCorrelatorMatcher(notificationCorrelator.getCorrelatorId(), correlationKeySet);
    }

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Related Classes of org.apache.ode.bpel.common.CorrelationKey

org.apache.ode.bpel.engine.BpelRuntimeContextImpl
org.apache.ode.bpel.engine.migration.CorrelationKeyMigration
org.apache.ode.bpel.engine.migration.CorrelationKeySetDataMigration
org.apache.ode.bpel.engine.migration.CorrelationKeySetMigration
org.apache.ode.bpel.engine.PartnerLinkMyRoleImpl
org.apache.ode.bpel.engine.WorkEvent
org.apache.ode.bpel.memdao.ProcessDaoImpl
org.apache.ode.bpel.rtrep.v1.BpelJacobRunnable
org.apache.ode.bpel.rtrep.v1.EH_EVENT$SELECT
org.apache.ode.bpel.rtrep.v1.PICK



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