1 files changed, 156 insertions, 0 deletions
diff --git a/adapters/mso-sdnc-adapter/src/main/java/org/openecomp/mso/adapters/sdnc/sdncrest/SDNCEventParser.java b/adapters/mso-sdnc-adapter/src/main/java/org/openecomp/mso/adapters/sdnc/sdncrest/SDNCEventParser.java
new file mode 100644
index 0000000000..9808f48e7e
--- /dev/null
+++ b/adapters/mso-sdnc-adapter/src/main/java/org/openecomp/mso/adapters/sdnc/sdncrest/SDNCEventParser.java
@@ -0,0 +1,156 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * OPENECOMP - MSO
+ * ================================================================================
+ * Copyright (C) 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.mso.adapters.sdnc.sdncrest;
+
+import org.openecomp.mso.adapters.sdncrest.SDNCEvent;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.xml.sax.InputSource;
+
+import javax.xml.XMLConstants;
+import javax.xml.parsers.DocumentBuilderFactory;
+import java.io.StringReader;
+import java.text.ParseException;
+
+/**
+ * SDNCConnector for "agnostic" API services.
+ */
+public class SDNCEventParser {
+	/**
+	 * Parses SDNC event XML. If the content can be parsed and contains all required
+	 * elements, then an object is returned. Otherwise, a ParseException is thrown.
+	 * This method performs no logging or alarming.
+	 * @throws ParseException on error
+	 */
+	public static SDNCEvent parse(String content) throws ParseException {
+		try {
+			// Note: this document builder is not namespace-aware, so namespaces are ignored.
+			DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+			documentBuilderFactory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
+			InputSource source = new InputSource(new StringReader(content));
+			Document doc = documentBuilderFactory.newDocumentBuilder().parse(source);
+
+			// Find the configuration-event child under the root element.
+			// The root element is expected to be an "output" element, but we don't really care.
+
+			Element root = doc.getDocumentElement();
+			Element configurationEvent = null;
+
+			for (Element child : SDNCAdapterUtils.childElements(root)) {
+				if ("configuration-event".equals(child.getNodeName())) {
+					configurationEvent = child;
+					break;
+				}
+			}
+
+			if (configurationEvent == null) {
+				throw new ParseException("No configuration-event element in SDNC event", 0);
+			}
+
+			// Process the children of configuration-event
+
+			String eventType = null;
+			String eventCorrelatorType = null;
+			String eventCorrelator = null;
+			Element eventParameters = null;
+
+			for (Element child : SDNCAdapterUtils.childElements(configurationEvent)) {
+				if ("event-type".equals(child.getNodeName())) {
+					eventType = child.getTextContent();
+				} else if ("event-correlator-type".equals(child.getNodeName())) {
+					eventCorrelatorType = child.getTextContent();
+				} else if ("event-correlator".equals(child.getNodeName())) {
+					eventCorrelator = child.getTextContent();
+				} else if ("event-parameters".equals(child.getNodeName())) {
+					eventParameters = (Element) child;
+				}
+			}
+
+			// event-type is mandatory.
+
+			if (eventType == null || eventType.isEmpty()) {
+				throw new ParseException("No event-type in SDNC event", 0);
+			}
+
+			// event-correlator-type is mandatory.
+
+			if (eventCorrelatorType == null || eventCorrelatorType.isEmpty()) {
+				throw new ParseException("No event-correlator-type in SDNC event", 0);
+			}
+
+			// event-correlator is mandatory.
+
+			if (eventCorrelator == null || eventCorrelator.isEmpty()) {
+				throw new ParseException("No event-correlator in SDNC event", 0);
+			}
+
+			// Create an event object.
+
+			SDNCEvent event = new SDNCEvent(eventType, eventCorrelatorType, eventCorrelator);
+
+			// event-parameters is an optional container element.  If present,
+			// process its children, adding values to the event object.
+
+			if (eventParameters != null) {
+				for (Element element : SDNCAdapterUtils.childElements(eventParameters)) {
+					if (!"event-parameter".equals(element.getNodeName())) {
+						continue;
+					}
+
+					String tagName = null;
+					String tagValue = null;
+
+					for (Element child : SDNCAdapterUtils.childElements(element)) {
+						if ("tag-name".equals(child.getNodeName())) {
+							tagName = child.getTextContent();
+						} else if ("tag-value".equals(child.getNodeName())) {
+							tagValue = child.getTextContent();
+						}
+					}
+
+					// tag-name is mandatory
+
+					if (tagName == null) {
+						throw new ParseException("Missing tag-name in SDNC event parameter", 0);
+					}
+
+					// tag-value is optional.  If absent, make it an empty string so we don't
+					// end up with null values in the parameter map.
+
+					if (tagValue == null) {
+						tagValue = "";
+					}
+
+					event.addParam(tagName, tagValue);
+				}
+			}
+
+			return event;
+		} catch (ParseException e) {
+			throw e;
+		} catch (Exception e) {
+			throw new ParseException("Failed to parse SDNC event", 0);
+		}
+	}
+
+	// Instantiation is not allowed.
+	private SDNCEventParser() {
+	}
+}
+\ No newline at end of file