[#1307] Add geometry validation processor first implementation

streampipes-extensions/streampipes-processors-geo-jvm/src/main/java/org/apache/streampipes/processors/geo/jvm/jts/processor/validation/GeometryValidationProcessor.java

@@ -0,0 +1,164 @@
+/*
+ * 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.geo.jvm.jts.processor.validation;
+
+import org.apache.streampipes.commons.exceptions.SpRuntimeException;
+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.processors.geo.jvm.jts.helper.SpGeometryBuilder;
+import org.apache.streampipes.sdk.builder.ProcessingElementBuilder;
+import org.apache.streampipes.sdk.builder.StreamRequirementsBuilder;
+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.Options;
+import org.apache.streampipes.sdk.helpers.OutputStrategies;
+import org.apache.streampipes.sdk.utils.Assets;
+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 org.locationtech.jts.geom.Geometry;
+import org.locationtech.jts.operation.valid.IsValidOp;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class GeometryValidationProcessor extends StreamPipesDataProcessor {
+  public static final String GEOM_KEY = "geom-key";
+  public static final String EPSG_KEY = "epsg-key";
+  public static final String VALIDATION_OUTPUT_KEY = "validation-output-key";
+  public static final String VALIDATION_TYPE_KEY = "validation-type-key";
+  private String geometryMapper;
+  private String epsgMapper;
+  private Integer validationOutput;
+  private Integer validationType;
+
+  private static final Logger LOG = LoggerFactory.getLogger(GeometryValidationProcessor.class);
+
+  @Override
+  public DataProcessorDescription declareModel() {
+    return ProcessingElementBuilder.create("org.apache.streampipes.processors.geo.jvm.jts.processor.validation")
+        .category(DataProcessorType.GEO)
+        .withAssets(Assets.DOCUMENTATION, Assets.ICON)
+        .withLocales(Locales.EN)
+        .requiredStream(StreamRequirementsBuilder
+            .create()
+            .requiredPropertyWithUnaryMapping(
+                EpRequirements.domainPropertyReq("http://www.opengis.net/ont/geosparql#Geometry"),
+                Labels.withId(GEOM_KEY),
+                PropertyScope.MEASUREMENT_PROPERTY)
+            .requiredPropertyWithUnaryMapping(
+                EpRequirements.domainPropertyReq("http://data.ign.fr/def/ignf#CartesianCS"),
+                Labels.withId(EPSG_KEY),
+                PropertyScope.MEASUREMENT_PROPERTY)
+            .build())
+        .outputStrategy(OutputStrategies.keep())
+        .requiredSingleValueSelection(
+            Labels.withId(VALIDATION_OUTPUT_KEY),
+            Options.from(
+                ValidationOutput.VALID.name(),
+                ValidationOutput.INVALID.name()
+            )
+        )
+        .requiredMultiValueSelection(
+            Labels.withId(VALIDATION_TYPE_KEY),
+            Options.from(
+                ValidationType.IsEmpty.name(),
+                ValidationType.IsSimple.name(),
+                ValidationType.IsValid.name()
+            )
+        )
+        .build();
+  }
+
+  @Override
+  public void onInvocation(ProcessorParams parameters, SpOutputCollector spOutputCollector,
+                           EventProcessorRuntimeContext runtimeContext) throws SpRuntimeException {
+
+    this.geometryMapper = parameters.extractor().mappingPropertyValue(GEOM_KEY);
+    this.epsgMapper = parameters.extractor().mappingPropertyValue(EPSG_KEY);
+
+    String readValidationOutput = parameters.extractor().selectedSingleValue(VALIDATION_OUTPUT_KEY, String.class);
+    String readValidationType = parameters.extractor().selectedSingleValue(VALIDATION_TYPE_KEY, String.class);
+
+    if (readValidationOutput.equals(ValidationOutput.VALID.name())) {
+      this.validationOutput = ValidationOutput.VALID.getNumber(); // 1
+    } else {
+      this.validationOutput = 2;
+    }
+
+    if (readValidationType.equals(ValidationType.IsEmpty.name())) {
+      this.validationType = ValidationType.IsEmpty.getNumber(); // 1
+    } else if (readValidationType.equals(ValidationType.IsValid.name())) {
+      this.validationType = ValidationType.IsValid.getNumber(); // 2
+    } else {
+      this.validationType = ValidationType.IsSimple.getNumber(); // 3
+    }
+  }
+
+  @Override
+  public void onEvent(Event event, SpOutputCollector collector) throws SpRuntimeException {
+    String geom = event.getFieldBySelector(geometryMapper).getAsPrimitive().getAsString();
+    Integer sourceEpsg = event.getFieldBySelector(epsgMapper).getAsPrimitive().getAsInt();
+
+    Geometry geometry = SpGeometryBuilder.createSPGeom(geom, sourceEpsg);
+
+    boolean itIsValid = false;
+
+    switch (validationType) {
+      case 1:
+        itIsValid = geometry.isEmpty();
+        break;
+      case 2:
+        itIsValid = geometry.isSimple();
+        break;
+      case 3:
+        IsValidOp validater = new IsValidOp(geometry);
+        validater.setSelfTouchingRingFormingHoleValid(true);
+        itIsValid = validater.isValid();
+        if (itIsValid = false) {
+          validater.getValidationError();
+        }
+    }
+
+
+    switch (validationOutput) {
+      case 1:
+        if (itIsValid) {
+          collector.collect(event);
+        }
+        break;
+      case 2:
+        if (!itIsValid) {
+          collector.collect(event);
+        }
+        break;
+    }
+  }
+
+
+
+  @Override
+  public void onDetach() throws SpRuntimeException {
+
+  }
+}

streampipes-extensions/streampipes-processors-geo-jvm/src/main/java/org/apache/streampipes/processors/geo/jvm/jts/processor/validation/ValidationOutput.java

@@ -0,0 +1,34 @@
+/*
+ * 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.geo.jvm.jts.processor.validation;
+
+public enum ValidationOutput {
+  VALID(1), INVALID(2);
+
+  private final int number;
+
+  ValidationOutput(int number) {
+    this.number = number;
+  }
+
+  public int getNumber() {
+    return number;
+  }
+}
+

streampipes-extensions/streampipes-processors-geo-jvm/src/main/java/org/apache/streampipes/processors/geo/jvm/jts/processor/validation/ValidationType.java

@@ -0,0 +1,30 @@
+/*
+ * 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.geo.jvm.jts.processor.validation;
+public enum ValidationType {
+  IsEmpty(1), IsValid(2), IsSimple(3);
+  private final int number;
+  ValidationType(int i) {
+    this.number = i;
+  }
+
+  public int getNumber() {
+    return number;
+  }
+}