Examples of org.openbp.core.engine.EngineException

org.openbp.core.engine.EngineException
Exception that indicates a process execution failure that is likely to be a programming error. The range is wide, from parameter binding up to missing jump targets or process inconsistencies. In general, engine exceptions are not recoverable, i. e. cannot be handled by process error mechanisms. @author Author: Heiko Erhardt

   * (depending on the mode parameter)
   */
  public Object getContextPathValue(String expression, Object base, int mode)
  {
    if (expression == null)
      throw new EngineException("ExpressionIsNull", "Cannot evaluate null expression");


    Object value = null;


    StringParser sp = new StringParser(expression);

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   * (depending on the mode parameter)
   */
  public void setContextPathValue(String expression, Object value, DataTypeItem topLevelDataType, int mode)
  {
    if (expression == null)
      throw new EngineException("ExpressionIsNull", "Cannot evaluate null expression");


    StringParser sp = new StringParser(expression);


    try
    {

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        return value;
    }


    if (context == null)
    {
      throw new EngineException("EvaluationContextMissing", "Cannot refer to context object '" + name + "' without a context.");
    }


    String contextName;
    if (TokenContextUtil.isProcessVariableIdentifier(name))
    {

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   */
  protected void setContextObject(String name, Object value)
  {
    if (context == null)
    {
      throw new EngineException("EvaluationContextMissing", "Cannot refer to context object '" + name + "' without a context.");
    }


    String contextName;
    if (TokenContextUtil.isProcessVariableIdentifier(name))
    {

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  protected Object createBeanInstance(ComplexTypeItem dataType)
  {
    Class cls = dataType.getJavaClass();
    if (cls == null)
    {
      throw new EngineException("CouldNotCreateInstance", "Cannot create bean instance; no bean class available for data type '" + dataType.getQualifier() + "'");
    }


    Object o = null;
    try
    {
      o = ReflectUtil.instantiate(cls, null, "bean");
    }
    catch (ReflectException e)
    {
      throw new EngineException("CouldNotCreateInstance", "Error instantiating bean object.", e);
    }


    return o;
  }

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   * @return A new OpenBPException
   */
  private OpenBPException newError(String errorCode, String msg, Throwable throwable, StringParser sp)
  {
    msg = msg + "\nExpression = '" + sp.getSourceString() + "', column = " + sp.getPos();
    return new EngineException(errorCode, throwable);
  }

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    {
      // Create message.
      String msg = LogUtil.error(getClass(), "Cannot determine user interface adapter class name of type $0.", visualType);


      // Throw an Engine Exception.
      throw new EngineException("UnknownUiAdapter", msg);
    }


    // Instantiate the user interface adapter
    Class cls = null;
    try
    {
      // Get the class for the class name.
      cls = Class.forName(className);


      // We instantiate using the (Model model) constructor
      Constructor constructor = cls.getConstructor(new Class [] { Model.class });


      UIAdapter adapter = (UIAdapter) constructor.newInstance(new Object [] { model });


      // Log that we created a UI adapter.
      LogUtil.debug(getClass(), "UIAdapter for model $0, visual type $1 created.", model.getQualifier(), visualType);


      // Return the created adapter.
      return adapter;
    }
    catch (Exception e)
    {
      // Log message.
      String msg = LogUtil.error(getClass(), "Cannot instantiate user interface adapter $0.", className);


      // Throw an Engine Exception.
      throw new EngineException("CouldNotCreateUiAdapter", msg, e);
    }
  }

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      if (connectionInfo == null)
        return;


      // Create an RMI registry
      if (connectionInfo.getRmiServerPort() == 0)
        throw new EngineException("Connection.Properties", "No RMI port specified for service registry.");


      // Create an RMI registry
      int rmiServerPort = connectionInfo.getRmiServerPort();


      LogUtil.info(getClass(), "Binding to RMI registry using binding name $0, port {1}.", CoreConstants.RMI_BINDING_NAME, new Integer(rmiServerPort));


      Registry registry = null;
      try
      {
        // This fails, if OpenBP has already been started & stopped in the same VM instance before.
        registry = LocateRegistry.createRegistry(rmiServerPort);
      }
      catch (RemoteException e)
      {
        if (e instanceof java.rmi.server.ExportException)
        {
          // registry probably already exists
          registry = LocateRegistry.getRegistry(rmiServerPort);
        }
        else
          throw e;
      }


      // Bind the service to the RMI registry
      registry.rebind(CoreConstants.RMI_BINDING_NAME, this);
    }
    catch (RemoteException e)
    {
      String msg = LogUtil.error(getClass(), "Error binding remote interface.", e);
      String bindingErrorHandler = SettingUtil.getStringSetting(ServerConstants.SYSPROP_RMIBINDINGERRORHANDLING);
      if ("ignore".equals(bindingErrorHandler))
      {
      }
      else if ("output".equals(bindingErrorHandler))
      {
        LogUtil.error(getClass(), msg);
      }
      else
      {
        throw new EngineException("Initialization", msg, e);
      }
    }
  }

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      {
        LogUtil.error(getClass(), msg);
      }
      else
      {
        throw new EngineException("Shutdown", msg, e);
      }
    }
  }

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    // Retrieve an implementation for the given interface
    Object implementation = serviceRegistry.lookup(interfaceName);
    if (implementation == null)
    {
      String msg = LogUtil.error(getClass(), "No implementation found for interface $0.", interfaceName);
      throw new EngineException("Initialization", msg);
    }


    try
    {
      Method method = ReflectUtil.findByUnqualifiedMethodSignature(implementation.getClass(), methodSignature);

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org.openbp.core.model.item.type.ComplexTypeItemImpl

org.openbp.model.system.collection.IsCollectionEmptyHandler

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org.openbp.server.context.serializer.PersistenceContextObjectSerializer

org.openbp.server.context.TokenContextImpl

org.openbp.server.context.TokenContextUtil

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org.openbp.server.engine.EngineExecutor

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