1 files changed, 104 insertions, 0 deletions
diff --git a/cmso-ticketmgt/src/main/java/org/onap/observations/MessageHeaders.java b/cmso-ticketmgt/src/main/java/org/onap/observations/MessageHeaders.java
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index 0000000..d8f80a2
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+++ b/cmso-ticketmgt/src/main/java/org/onap/observations/MessageHeaders.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright © 2019 AT&T Intellectual Property.
+ * 
+ * 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.
+ * 
+ * 
+ * Unless otherwise specified, all documentation contained herein is licensed
+ * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
+ * you may not use this documentation except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *         https://creativecommons.org/licenses/by/4.0/
+ * 
+ * Unless required by applicable law or agreed to in writing, documentation
+ * 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.onap.observations;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class MessageHeaders {
+    public enum HeadersEnum {
+        UNDEFINED("UNDEFINED"), TransactionID("X-TransactionId"), FromAppID("X-FromAppId"), MinorVersion(
+                "X-MinorVersion"), PatchVersion("X-PatchVersion"), LatestVersion("X-LatestVersion"),;
+
+        private final String text;
+        private final ArrayList<String> list;
+
+        private HeadersEnum(String text) {
+            this.text = text;
+            this.list = new ArrayList<>();
+        }
+
+        @Override
+        public String toString() {
+            return text;
+        }
+    }
+
+    public static final Map<String, String> supportedMajorVersions = new HashMap<String, String>();
+    static {
+        supportedMajorVersions.put("v1", "0");
+        supportedMajorVersions.put("v2", "0");
+    }
+    public static final Set<String> supportedMajorMinorVersions = new HashSet<String>();
+    static {
+        supportedMajorMinorVersions.add("v1.0");
+        supportedMajorMinorVersions.add("v2.0");
+    }
+    public static final String latestVersion = "2.0.0";
+    public static final String patchVersion = "0";
+
+    public static HeadersEnum fromString(String text) {
+        for (HeadersEnum e : HeadersEnum.values())
+            if (e.text.equals(text))
+                return e;
+        return HeadersEnum.UNDEFINED;
+    }
+
+    public static String getPatchVersion() {
+        return patchVersion;
+    }
+
+    public static String getLatestVersion() {
+        return latestVersion;
+    }
+
+    public static boolean validateMajorVersion(String major) {
+        String majorKey = major.toLowerCase();
+        if (!supportedMajorVersions.containsKey(majorKey))
+            return false;
+        return true;
+    }
+
+    public static boolean validateMajorMinorVersion(String major, String minor) {
+        String majorKey = major.toLowerCase();
+        if (!supportedMajorVersions.containsKey(majorKey))
+            return false;
+
+        if (minor != null) {
+            String majorMinorKey = majorKey + "." + minor;
+            return supportedMajorMinorVersions.contains(majorMinorKey);
+        }
+        return true;
+    }
+}