1 files changed, 73 insertions, 0 deletions
diff --git a/ajsc-aai/src/main/java/org/openecomp/aai/util/AAIApiVersion.java b/ajsc-aai/src/main/java/org/openecomp/aai/util/AAIApiVersion.java
new file mode 100644
index 0000000..62764db
--- /dev/null
+++ b/ajsc-aai/src/main/java/org/openecomp/aai/util/AAIApiVersion.java
@@ -0,0 +1,73 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.openecomp.aai
+ * ================================================================================
+ * 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.aai.util;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.apache.cxf.message.Message;
+import org.apache.cxf.phase.PhaseInterceptorChain;
+import org.openecomp.aai.exceptions.AAIException;
+
+public class AAIApiVersion {
+	
+	private static final Pattern versionPattern = Pattern.compile("(^|\\/)(v\\d+)\\/");
+	
+	private static final Pattern latestVersionPattern = Pattern.compile("(^|\\/)(latest)\\/");
+	
+	/**
+	 * Gets the.
+	 *
+	 * @return the string
+	 * @throws AAIException the AAI exception
+	 */
+	public static String get() throws AAIException {
+		
+		String apiVersion = null;
+		try {
+			Message message = PhaseInterceptorChain.getCurrentMessage();
+			String requestURI = (String) message.get(Message.REQUEST_URI);
+			
+			if (requestURI != null) {
+				Matcher matcher = versionPattern.matcher(requestURI);
+				if (matcher.find() && matcher.groupCount() >= 2) {
+					apiVersion = matcher.group(2);
+		        }
+				if (apiVersion == null) { 
+					Matcher latestMatcher = latestVersionPattern.matcher(requestURI);
+					if (latestMatcher.find() && latestMatcher.groupCount() >= 2) {
+						apiVersion = AAIConfig.get(AAIConstants.AAI_DEFAULT_API_VERSION_PROP, AAIConstants.AAI_DEFAULT_API_VERSION);
+					}
+				}
+				
+			}
+			
+		} catch (Exception e) { 
+			// TODO: we may want to log an error here
+		}
+		// TODO: should this check the value a little closer and look for a pattern?
+		if (apiVersion == null || !apiVersion.startsWith("v")) { 
+			apiVersion = AAIConfig.get (AAIConstants.AAI_DEFAULT_API_VERSION_PROP, AAIConstants.AAI_DEFAULT_API_VERSION);
+			//apiVersion = AAIConstants.AAI_DEFAULT_API_VERSION;
+		}
+		return apiVersion;
+	}
+}