Initial TCA commit into DCAEGEN2

[dcaegen2/analytics/tca.git] / dcae-analytics-tca / src / main / java / org / openecomp / dcae / apod / analytics / tca / processor / AbstractTCAECEFPolicyProcessor.java

diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java
new file mode 100644 (file)
index 0000000..6cb8e7f
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java
@@ -0,0 +1,61 @@
+/*
+ * ===============================LICENSE_START======================================
+ *  dcae-analytics
+ * ================================================================================
+ *    Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ *  Licensed 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.
+ *  ============================LICENSE_END===========================================
+ */
+
+package org.openecomp.dcae.apod.analytics.tca.processor;
+
+import org.openecomp.dcae.apod.analytics.common.exception.MessageProcessingException;
+import org.openecomp.dcae.apod.analytics.common.service.processor.AbstractMessageProcessor;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+
+/**
+ * <p>
+ *     Encapsulates common functionality for all TCA CEF Policy Processors
+ * </p>
+ *
+ * @author Rajiv Singla . Creation Date: 11/9/2016.
+ */
+public abstract class AbstractTCAECEFPolicyProcessor extends AbstractMessageProcessor<TCACEFProcessorContext> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(AbstractTCAECEFPolicyProcessor.class);
+
+    /**
+     * For all TCA Policy Processor the pre processor ensures that {@link EventListener} object is
+     * present
+     *
+     * @param processorContext incoming Processor Context
+     * @return Pre processed Processor Context
+     */
+    @Override
+    public TCACEFProcessorContext preProcessor(@Nonnull TCACEFProcessorContext processorContext) {
+        // validates CEF Event Listener is Present
+        final EventListener cefEventListener = processorContext.getCEFEventListener();
+        if (cefEventListener == null) {
+            final String errorMessage = String.format(
+                    "CEF Event Listener is not Present.Invalid use of Processor: %s. CEF Message: %s",
+                    getProcessorInfo().getProcessorName(), processorContext.getMessage());
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+        }
+        return super.preProcessor(processorContext);
+    }
+}