Examples of java.io.ObjectInputStream.readUTF()

java.io.ObjectInputStream.readUTF()
Reads and returns primitive data of type String read in UTF format from the receiver @return a String saved as primitive data usingObjectOutputStream.writeUTF() @throws IOException If an IO exception happened when reading the primitive data.

   


   
    private ProcessInstanceMarshaller getMarshallerFromContext(MarshallerReaderContext context) throws IOException {
        ObjectInputStream stream = context.stream;
        String processInstanceType = stream.readUTF();
        return ProcessMarshallerRegistry.INSTANCE.getMarshaller( processInstanceType );
    }


    private void saveProcessInstanceType(MarshallerWriteContext context,
                                         ProcessInstance processInstance,

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        InternalRuleBase ruleBase = context.ruleBase;
        InternalWorkingMemory wm = context.wm;


        WorkflowProcessInstanceImpl processInstance = createProcessInstance();
        processInstance.setId(stream.readLong());
        String processId = stream.readUTF();
        processInstance.setProcessId(processId);
        Process process = ruleBase.getProcess(processId);
        if (ruleBase != null) {
            processInstance.setProcess(process);
        }

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        int nbSwimlanes = stream.readInt();
        if (nbSwimlanes > 0) {
            Context swimlaneContext = ((org.jbpm.process.core.Process) process).getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE);
            SwimlaneContextInstance swimlaneContextInstance = (SwimlaneContextInstance) processInstance.getContextInstance(swimlaneContext);
            for (int i = 0; i < nbSwimlanes; i++) {
                String name = stream.readUTF();
                String value = stream.readUTF();
                swimlaneContextInstance.setActorId(name, value);
            }
        }

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        if (nbSwimlanes > 0) {
            Context swimlaneContext = ((org.jbpm.process.core.Process) process).getDefaultContext(SwimlaneContext.SWIMLANE_SCOPE);
            SwimlaneContextInstance swimlaneContextInstance = (SwimlaneContextInstance) processInstance.getContextInstance(swimlaneContext);
            for (int i = 0; i < nbSwimlanes; i++) {
                String name = stream.readUTF();
                String value = stream.readUTF();
                swimlaneContextInstance.setActorId(name, value);
            }
        }


        while (stream.readShort() == PersisterEnums.NODE_INSTANCE) {

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      Context variableScope = ((org.jbpm.process.core.Process) process)
          .getDefaultContext(VariableScope.VARIABLE_SCOPE);
      VariableScopeInstance variableScopeInstance = (VariableScopeInstance) processInstance
          .getContextInstance(variableScope);
      for (int i = 0; i < nbVariables; i++) {
        String name = stream.readUTF();
        try {
          int index = stream.readInt();
          ObjectMarshallingStrategy strategy = context.resolverStrategyFactory
              .getStrategy(index);

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                if (nbVariables > 0) {
                    Context variableScope = ((org.jbpm.process.core.Process) ((org.jbpm.process.instance.ProcessInstance)
                    processInstance).getProcess()).getDefaultContext(VariableScope.VARIABLE_SCOPE);
                    VariableScopeInstance variableScopeInstance = (VariableScopeInstance) ((CompositeContextNodeInstance) nodeInstance).getContextInstance(variableScope);
                    for (int i = 0; i < nbVariables; i++) {
                        String name = stream.readUTF();
                        try {
                            Object value = stream.readObject();
                            variableScopeInstance.internalSetVariable(name, value);
                        } catch (ClassNotFoundException e) {
                            throw new IllegalArgumentException("Could not reload variable " + name);

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    }


    public void readProcessInstances(MarshallerReaderContext context) throws IOException {
        ObjectInputStream stream = context.stream;
        while ( stream.readShort() == PersisterEnums.PROCESS_INSTANCE ) {
          String processType = stream.readUTF();
          ProcessMarshallerRegistry.INSTANCE.getMarshaller(processType).readProcessInstance(context);
        }
    }


    public void readWorkItems(MarshallerReaderContext context) throws IOException {

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        ObjectInputStream stream = context.stream;


        WorkItemImpl workItem = new WorkItemImpl();
        workItem.setId( stream.readLong() );
        workItem.setProcessInstanceId( stream.readLong() );
        workItem.setName( stream.readUTF() );
        workItem.setState( stream.readInt() );


        if(includeVariables){
        int nbParameters = stream.readInt();

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        if(includeVariables){
        int nbParameters = stream.readInt();


        for ( int i = 0; i < nbParameters; i++ ) {
            String name = stream.readUTF();
            try {
                Object value = stream.readObject();
                workItem.setParameter( name,
                                       value );
            } catch ( ClassNotFoundException e ) {

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            // For each node, add an entry to cluster nodes
            ObjectInputStream inData = new ObjectInputStream(in);
            int nodeCount = inData.readInt();
            for (int n = 0; n < nodeCount; n++)
                this.clusterAddresses.put(inData.readUTF(), new Date());


            inData.close();
            outControl.close();
            out.close();
            in.close();

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