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


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

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629             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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        try {
            selectors = new Selector[_opick.onMessages.size()];
            int idx = 0;
            for (OPickReceive.OnMessage onMessage : _opick.onMessages) {
                CorrelationKey key = null; // this will be the case for the
                // createInstance activity


                PartnerLinkInstance pLinkInstance = _scopeFrame.resolve(onMessage.partnerLink);
                if (onMessage.matchCorrelation == null && !_opick.createInstanceFlag) {
                    // Adding a route for opaque correlation. In this case,
                    // correlation is on "out-of-band" session-id
                    String sessionId = getBpelRuntimeContext().fetchMySessionId(pLinkInstance);
                    key = new CorrelationKey(-1, new String[] { sessionId });
                } else if (onMessage.matchCorrelation != null) {
                    if (!getBpelRuntimeContext().isCorrelationInitialized(
                            _scopeFrame.resolve(onMessage.matchCorrelation))) {
                        // the following should really test if this is a "join"
                        // type correlation...

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68     _processInst = processInst;
        _correlator = correlator;
    }
  
  public CorrelationKey getCorrelationKey() {
    return new CorrelationKey(_correlationKey);
  }

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125          */
        public void run() {
            Selector selector;
            try {
                PickResponseChannel pickResponseChannel = newChannel(PickResponseChannel.class);
                CorrelationKey key;
                PartnerLinkInstance pLinkInstance = _scopeFrame.resolve(_oevent.partnerLink);
                if (_oevent.matchCorrelation == null) {
                    // Adding a route for opaque correlation. In this case correlation is done on "out-of-band" session id.
                    String sessionId = getBpelRuntimeContext().fetchMySessionId(pLinkInstance);
                    key = new CorrelationKey(-1, new String[] {sessionId});
                } else {
                    if (!getBpelRuntimeContext().isCorrelationInitialized(_scopeFrame.resolve(_oevent.matchCorrelation))) {
                        throw new FaultException(_oevent.getOwner().constants.qnCorrelationViolation,"Correlation not initialized.");
                    }
                    key = getBpelRuntimeContext().readCorrelation(_scopeFrame.resolve(_oevent.matchCorrelation));
 

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116     public void setCorrelatorId(String correlatorId) {
        _jobDetail.put("correlatorId", correlatorId);
    }
    
    public CorrelationKey getCorrelationKey() {
        return new CorrelationKey((String) _jobDetail.get("ckey"));
    }

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154   
  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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351         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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68     _processInst = processInst;
        _correlator = correlator;
    }
  
  public CorrelationKey getCorrelationKey() {
    return new CorrelationKey(_correlationKey);
  }

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150     
    public Collection<ProcessInstanceDAO> findInstance(CorrelationKey key, boolean wait) {
        ArrayList<ProcessInstanceDAO> result = new ArrayList<ProcessInstanceDAO>();
        for (ProcessInstanceDAO instance : _instances.values()) {
            for (CorrelationSetDAO corrSet : instance.getCorrelationSets()) {
                CorrelationKey value = corrSet.getValue();
                if (value != null) {
                    if (value.equals(key)) result.add(instance);
                }
            }
        }
        return result;
    }

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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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