Migrate StringToState processing elements

streampipes-extensions/streampipes-processors-transformation-jvm/src/main/java/org/apache/streampipes/processors/transformation/jvm/TransformationJvmInit.java

@@ -43,7 +43,7 @@
 import org.apache.streampipes.processors.transformation.jvm.processor.measurementconverter.MeasurementUnitConverterProcessor;
 import org.apache.streampipes.processors.transformation.jvm.processor.state.labeler.number.NumberLabelerController;
 import org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.counter.StringCounterProcessor;
-import org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state.StringToStateController;
+import org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state.StringToStateProcessor;
 import org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.timer.StringTimerController;
 import org.apache.streampipes.processors.transformation.jvm.processor.task.TaskDurationController;
 import org.apache.streampipes.processors.transformation.jvm.processor.timestampextractor.TimestampExtractorController;
@@ -84,7 +84,7 @@ public SpServiceDefinition provideServiceDefinition() {
             new SignalEdgeFilterController(),
             new BooleanToStateController(),
             new NumberLabelerController(),
-            new StringToStateController(),
+            new StringToStateProcessor(),
             new StringCounterProcessor(),
             new BooleanOperatorProcessor(),
             new FiledRenameProcessor())

streampipes-extensions/streampipes-processors-transformation-jvm/src/main/java/org/apache/streampipes/processors/transformation/jvm/processor/stringoperator/state/StringToStateController.java → streampipes-extensions/streampipes-processors-transformation-jvm/src/main/java/org/apache/streampipes/processors/transformation/jvm/processor/stringoperator/state/StringToStateProcessor.java

@@ -1,74 +1,98 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *    http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-package org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state;
-
-import org.apache.streampipes.model.DataProcessorType;
-import org.apache.streampipes.model.graph.DataProcessorDescription;
-import org.apache.streampipes.model.graph.DataProcessorInvocation;
-import org.apache.streampipes.model.schema.PropertyScope;
-import org.apache.streampipes.sdk.builder.ProcessingElementBuilder;
-import org.apache.streampipes.sdk.builder.StreamRequirementsBuilder;
-import org.apache.streampipes.sdk.extractor.ProcessingElementParameterExtractor;
-import org.apache.streampipes.sdk.helpers.EpProperties;
-import org.apache.streampipes.sdk.helpers.EpRequirements;
-import org.apache.streampipes.sdk.helpers.Labels;
-import org.apache.streampipes.sdk.helpers.Locales;
-import org.apache.streampipes.sdk.helpers.OutputStrategies;
-import org.apache.streampipes.sdk.utils.Assets;
-import org.apache.streampipes.vocabulary.SPSensor;
-import org.apache.streampipes.wrapper.standalone.ConfiguredEventProcessor;
-import org.apache.streampipes.wrapper.standalone.declarer.StandaloneEventProcessingDeclarer;
-
-import java.util.List;
-
-public class StringToStateController extends StandaloneEventProcessingDeclarer<StringToStateParameters> {
-
-  public static final String STRING_STATE_FIELD = "string_state_field";
-
-  public static final String CURRENT_STATE = "current_state";
-
-
-  @Override
-  public DataProcessorDescription declareModel() {
-    return ProcessingElementBuilder.create(
-            "org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state")
-        .category(DataProcessorType.STRING_OPERATOR)
-        .withLocales(Locales.EN)
-        .withAssets(Assets.DOCUMENTATION, Assets.ICON)
-        .requiredStream(StreamRequirementsBuilder.create()
-            .requiredPropertyWithNaryMapping(EpRequirements.stringReq(), Labels.withId(STRING_STATE_FIELD),
-                PropertyScope.NONE)
-            .build())
-        .outputStrategy(OutputStrategies.append(
-            EpProperties.listStringEp(Labels.withId(CURRENT_STATE), CURRENT_STATE, SPSensor.STATE)
-        ))
-        .build();
-  }
-
-  @Override
-  public ConfiguredEventProcessor<StringToStateParameters> onInvocation(DataProcessorInvocation graph,
-                                                                        ProcessingElementParameterExtractor extractor) {
-
-    List<String> stateFields = extractor.mappingPropertyValues(STRING_STATE_FIELD);
-
-    StringToStateParameters params = new StringToStateParameters(graph, stateFields);
-
-    return new ConfiguredEventProcessor<>(params, StringToState::new);
-  }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+package org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state;
+
+import org.apache.streampipes.commons.exceptions.SpRuntimeException;
+import org.apache.streampipes.logging.api.Logger;
+import org.apache.streampipes.model.DataProcessorType;
+import org.apache.streampipes.model.graph.DataProcessorDescription;
+import org.apache.streampipes.model.runtime.Event;
+import org.apache.streampipes.model.schema.PropertyScope;
+import org.apache.streampipes.sdk.builder.ProcessingElementBuilder;
+import org.apache.streampipes.sdk.builder.StreamRequirementsBuilder;
+import org.apache.streampipes.sdk.extractor.ProcessingElementParameterExtractor;
+import org.apache.streampipes.sdk.helpers.EpProperties;
+import org.apache.streampipes.sdk.helpers.EpRequirements;
+import org.apache.streampipes.sdk.helpers.Labels;
+import org.apache.streampipes.sdk.helpers.Locales;
+import org.apache.streampipes.sdk.helpers.OutputStrategies;
+import org.apache.streampipes.sdk.utils.Assets;
+import org.apache.streampipes.vocabulary.SPSensor;
+import org.apache.streampipes.wrapper.context.EventProcessorRuntimeContext;
+import org.apache.streampipes.wrapper.routing.SpOutputCollector;
+import org.apache.streampipes.wrapper.standalone.ProcessorParams;
+import org.apache.streampipes.wrapper.standalone.StreamPipesDataProcessor;
+
+import com.google.common.collect.Lists;
+
+import java.util.List;
+
+public class StringToStateProcessor extends StreamPipesDataProcessor {
+
+  private static Logger log;
+
+  public static final String STRING_STATE_FIELD = "string_state_field";
+
+  public static final String CURRENT_STATE = "current_state";
+
+  private List<String> stateFields;
+
+  @Override
+  public DataProcessorDescription declareModel() {
+    return ProcessingElementBuilder.create(
+            "org.apache.streampipes.processors.transformation.jvm.processor.stringoperator.state")
+        .category(DataProcessorType.STRING_OPERATOR)
+        .withLocales(Locales.EN)
+        .withAssets(Assets.DOCUMENTATION, Assets.ICON)
+        .requiredStream(StreamRequirementsBuilder.create()
+            .requiredPropertyWithNaryMapping(EpRequirements.stringReq(), Labels.withId(STRING_STATE_FIELD),
+                PropertyScope.NONE)
+            .build())
+        .outputStrategy(OutputStrategies.append(
+            EpProperties.listStringEp(Labels.withId(CURRENT_STATE), CURRENT_STATE, SPSensor.STATE)
+        ))
+        .build();
+  }
+
+  @Override
+  public void onInvocation(ProcessorParams parameters,
+                           SpOutputCollector spOutputCollector,
+                           EventProcessorRuntimeContext runtimeContext) throws SpRuntimeException {
+    log = parameters.getGraph().getLogger(StringToStateProcessor.class);
+    ProcessingElementParameterExtractor extractor = parameters.extractor();
+    this.stateFields = extractor.mappingPropertyValues(STRING_STATE_FIELD);
+  }
+
+  @Override
+  public void onEvent(Event event, SpOutputCollector collector) throws SpRuntimeException {
+    List<String> states = Lists.newArrayList();
+
+    for (String stateField : stateFields) {
+      states.add(event.getFieldBySelector(stateField).getAsPrimitive().getAsString());
+    }
+
+    event.addField(CURRENT_STATE, states.toArray());
+    collector.collect(event);
+  }
+
+  @Override
+  public void onDetach() throws SpRuntimeException {
+
+  }
+}