Package adams.flow.transformer

Class RESTTransformer

  • All Implemented Interfaces:
    adams.core.AdditionalInformationHandler, adams.core.CleanUpHandler, adams.core.Destroyable, adams.core.GlobalInfoSupporter, adams.core.logging.LoggingLevelHandler, adams.core.logging.LoggingSupporter, adams.core.option.OptionHandler, adams.core.QuickInfoSupporter, adams.core.ShallowCopySupporter<adams.flow.core.Actor>, adams.core.SizeOfHandler, adams.core.Stoppable, adams.core.StoppableWithFeedback, adams.core.VariablesInspectionHandler, adams.event.VariableChangeListener, adams.flow.core.Actor, adams.flow.core.ErrorHandler, adams.flow.core.InputConsumer, adams.flow.core.OutputProducer, Serializable, Comparable
    public class RESTTransformer
extends AbstractRESTClient
implements adams.flow.core.InputConsumer, adams.flow.core.OutputProducer
    Sends data to a REST webservice and forwards the response.

    Input/output:
    - accepts:
       java.lang.String
    - generates:
       java.lang.String


    -logging-level <OFF|SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST> (property: loggingLevel)
    The logging level for outputting errors and debugging output.
    default: WARNING
 
    -name <java.lang.String> (property: name)
    The name of the actor.
    default: RESTTransformer
 
    -annotation <adams.core.base.BaseAnnotation> (property: annotations)
    The annotations to attach to this actor.
    default:
 
    -skip <boolean> (property: skip)
    If set to true, transformation is skipped and the input token is just forwarded
    as it is.
    default: false
 
    -stop-flow-on-error <boolean> (property: stopFlowOnError)
    If set to true, the flow execution at this level gets stopped in case this
    actor encounters an error; the error gets propagated; useful for critical
    actors.
    default: false
 
    -silent <boolean> (property: silent)
    If enabled, then no errors are output in the console; Note: the enclosing
    actor handler must have this enabled as well.
    default: false
 
    -client <adams.flow.rest.RESTClient> (property: client)
    The webservice client to use.
    default: adams.flow.rest.echo.EchoClientTransformer -out-interceptor adams.flow.rest.interceptor.outgoing.NullGenerator -in-interceptor adams.flow.rest.interceptor.incoming.NullGenerator
    Author:
    fracpete (fracpete at waikato dot ac dot nz)
    See Also:
    Serialized Form

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected adams.flow.core.Token m_InputToken
      the input token.

      • Fields inherited from class adams.flow.core.AbstractActor

        m_Annotations, m_BackupState, m_DetectedObjectVariables, m_DetectedVariables, m_ErrorHandler, m_Executed, m_Executing, m_ExecutionListeningSupporter, m_FullName, m_LoggingPrefix, m_Name, m_Parent, m_ScopeHandler, m_Self, m_Silent, m_Skip, m_StopFlowOnError, m_StopMessage, m_Stopped, m_StorageHandler, m_VariablesUpdated

      • Fields inherited from class adams.core.option.AbstractOptionHandler

        m_OptionManager

      • Fields inherited from class adams.core.logging.LoggingObject

        m_Logger, m_LoggingIsEnabled, m_LoggingLevel

      • Fields inherited from interface adams.flow.core.Actor

        FILE_EXTENSION, FILE_EXTENSION_GZ

    • Constructor Summary

      Constructors 
      Constructor Description
      RESTTransformer()  

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Class[] accepts()
      Returns the class that the consumer accepts.
      protected String checkClient​(RESTClient value)
      Checks the client.
      void cleanUp()
      Cleans up the actor.
      adams.flow.core.Token currentInput()
      Returns the current input token, if any.
      protected String doExecute()
      Executes the flow item.
      Class[] generates()
      Returns the class of objects that it generates.
      protected RESTClientConsumer getDefaultClient()
      Returns the default client to use.
      String globalInfo()
      Returns a string describing the object.
      boolean hasInput()
      Returns whether an input token is currently present.
      boolean hasPendingOutput()
      Checks whether there is pending output to be collected after executing the flow item.
      void input​(adams.flow.core.Token token)
      The method that accepts the input token and then processes it.
      adams.flow.core.Token output()
      Returns the generated token.
      void wrapUp()
      Cleans up after the execution has finished.

      • Methods inherited from class adams.flow.core.AbstractActor

        annotationsTipText, backupState, canInspectOptions, canPerformSetUpCheck, compareTo, configureLogger, destroy, equals, execute, finalUpdateVariables, findVariables, findVariables, forceVariables, forCommandLine, forName, forName, getAdditionalInformation, getAnnotations, getDefaultName, getDetectedVariables, getErrorHandler, getFlowActors, getFlowExecutionListeningSupporter, getFullName, getName, getNextSibling, getParent, getParentComponent, getPreviousSibling, getRoot, getScopeHandler, getSilent, getSkip, getStopFlowOnError, getStopMessage, getStorageHandler, getVariables, handleError, handleException, hasErrorHandler, hasStopMessage, index, initialize, isBackedUp, isExecuted, isExecuting, isFinished, isHeadless, isStopped, nameTipText, performSetUpChecks, performVariableChecks, postExecute, preExecute, pruneBackup, pruneBackup, reset, restoreState, setAnnotations, setErrorHandler, setName, setParent, setSilent, setSkip, setStopFlowOnError, setVariables, shallowCopy, shallowCopy, silentTipText, sizeOf, skipTipText, stopExecution, stopExecution, stopFlowOnErrorTipText, updateDetectedVariables, updatePrefix, updateVariables, variableChanged

      • Methods inherited from class adams.core.option.AbstractOptionHandler

        cleanUpOptions, finishInit, getDefaultLoggingLevel, getOptionManager, loggingLevelTipText, newOptionManager, setLoggingLevel, toCommandLine, toString

      • Methods inherited from class adams.core.logging.LoggingObject

        getLogger, getLoggingLevel, initializeLogging, isLoggingEnabled

      • Methods inherited from interface adams.flow.core.Actor

        compareTo, destroy, equals, execute, findVariables, getAnnotations, getDefaultName, getDetectedVariables, getErrorHandler, getFlowExecutionListeningSupporter, getFullName, getName, getNextSibling, getParent, getParentComponent, getPreviousSibling, getQuickInfo, getRoot, getScopeHandler, getSilent, getSkip, getStopFlowOnError, getStopMessage, getStorageHandler, getVariables, handleError, hasErrorHandler, hasStopMessage, index, isExecuted, isFinished, isHeadless, isStopped, setAnnotations, setErrorHandler, setName, setParent, setSilent, setSkip, setStopFlowOnError, setUp, setVariables, shallowCopy, shallowCopy, sizeOf, stopExecution, stopExecution, toCommandLine, variableChanged

      • Methods inherited from interface adams.core.AdditionalInformationHandler

        getAdditionalInformation

      • Methods inherited from interface adams.core.logging.LoggingLevelHandler

        getLoggingLevel, setLoggingLevel

      • Methods inherited from interface adams.core.logging.LoggingSupporter

        getLogger, isLoggingEnabled

      • Methods inherited from interface adams.core.option.OptionHandler

        cleanUpOptions, defineOptions, getOptionManager

      • Methods inherited from interface adams.core.VariablesInspectionHandler

        canInspectOptions

    • Field Detail

      • m_InputToken

        protected adams.flow.core.Token m_InputToken
        the input token.

    • Constructor Detail

      • RESTTransformer

        public RESTTransformer()

    • Method Detail

      • globalInfo

        public String globalInfo()
        Returns a string describing the object.
        Specified by:
        globalInfo in interface adams.core.GlobalInfoSupporter
        Specified by:
        globalInfo in class adams.core.option.AbstractOptionHandler
        Returns:
        a description suitable for displaying in the gui

      • checkClient

        protected String checkClient​(RESTClient value)
        Checks the client.
        Specified by:
        checkClient in class AbstractRESTClient
        Parameters:
        value - the client to check
        Returns:
        null if accepted, otherwise error message

      • accepts

        public Class[] accepts()
        Returns the class that the consumer accepts.
        Specified by:
        accepts in interface adams.flow.core.InputConsumer
        Returns:
        the Class of objects that can be processed

      • input

        public void input​(adams.flow.core.Token token)
        The method that accepts the input token and then processes it.
        Specified by:
        input in interface adams.flow.core.InputConsumer
        Parameters:
        token - the token to accept and process

      • hasInput

        public boolean hasInput()
        Returns whether an input token is currently present.
        Specified by:
        hasInput in interface adams.flow.core.InputConsumer
        Returns:
        true if input token present

      • currentInput

        public adams.flow.core.Token currentInput()
        Returns the current input token, if any.
        Specified by:
        currentInput in interface adams.flow.core.InputConsumer
        Returns:
        the input token, null if none present

      • generates

        public Class[] generates()
        Returns the class of objects that it generates.
        Specified by:
        generates in interface adams.flow.core.OutputProducer
        Returns:
        the Class of the generated tokens

      • doExecute

        protected String doExecute()
        Executes the flow item.
        Specified by:
        doExecute in class adams.flow.core.AbstractActor
        Returns:
        null if everything is fine, otherwise error message

      • hasPendingOutput

        public boolean hasPendingOutput()
        Checks whether there is pending output to be collected after executing the flow item.
        Specified by:
        hasPendingOutput in interface adams.flow.core.OutputProducer
        Returns:
        true if there is pending output

      • output

        public adams.flow.core.Token output()
        Returns the generated token.
        Specified by:
        output in interface adams.flow.core.OutputProducer
        Returns:
        the generated token

      • wrapUp

        public void wrapUp()
        Cleans up after the execution has finished. Graphical output is left untouched.
        Specified by:
        wrapUp in interface adams.flow.core.Actor
        Overrides:
        wrapUp in class adams.flow.core.AbstractActor

      • cleanUp

        public void cleanUp()
        Cleans up the actor.
        Specified by:
        cleanUp in interface adams.flow.core.Actor
        Specified by:
        cleanUp in interface adams.core.CleanUpHandler
        Overrides:
        cleanUp in class AbstractRESTClient