1 files changed, 48 insertions, 0 deletions
diff --git a/sdc-tosca-parser/src/main/java/org/openecomp/sdc/tosca/parser/api/Version.java b/sdc-tosca-parser/src/main/java/org/openecomp/sdc/tosca/parser/api/Version.java
new file mode 100644
index 0000000..473e3a8
--- /dev/null
+++ b/sdc-tosca-parser/src/main/java/org/openecomp/sdc/tosca/parser/api/Version.java
@@ -0,0 +1,48 @@
+package org.openecomp.sdc.tosca.parser.api;
+
+public class Version implements Comparable<Version> {
+
+    private String version;
+
+    public final String get() {
+        return this.version;
+    }
+
+    public Version(String version) {
+        if(version == null)
+            throw new IllegalArgumentException("Version can not be null");
+        if(!version.matches("[0-9]+(\\.[0-9]+)*"))
+            throw new IllegalArgumentException("Invalid version format");
+        this.version = version;
+    }
+
+    @Override public int compareTo(Version that) {
+        if(that == null)
+            return 1;
+        String[] thisParts = this.get().split("\\.");
+        String[] thatParts = that.get().split("\\.");
+        int length = Math.max(thisParts.length, thatParts.length);
+        for(int i = 0; i < length; i++) {
+            int thisPart = i < thisParts.length ?
+                    Integer.parseInt(thisParts[i]) : 0;
+            int thatPart = i < thatParts.length ?
+                    Integer.parseInt(thatParts[i]) : 0;
+            if(thisPart < thatPart)
+                return -1;
+            if(thisPart > thatPart)
+                return 1;
+        }
+        return 0;
+    }
+
+    @Override public boolean equals(Object that) {
+        if(this == that)
+            return true;
+        if(that == null)
+            return false;
+        if(this.getClass() != that.getClass())
+            return false;
+        return this.compareTo((Version) that) == 0;
+    }
+
+}