Add name generator for PAP and PDPs

Added a method that PAPs and PDPs can use to generate a unique name or
identifier to be used in PAP-PDP messages.

Issue-ID: POLICY-3410
Change-Id: I22b075b123f79ba05e0884f743296c4bc64842b9
Signed-off-by: Jim Hahn <jrh3@att.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/utils/src/main/java/org/onap/policy/common/utils/network/NetworkUtil.java b/utils/src/main/java/org/onap/policy/common/utils/network/NetworkUtil.java
index e3539fb7..6698d7cf 100644
--- a/utils/src/main/java/org/onap/policy/common/utils/network/NetworkUtil.java
+++ b/utils/src/main/java/org/onap/policy/common/utils/network/NetworkUtil.java
@@ -26,6 +26,7 @@ import java.net.InetSocketAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
 import java.net.UnknownHostException;
+import java.util.UUID;
 import javax.net.ssl.TrustManager;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
@@ -170,4 +171,15 @@ public final class NetworkUtil {
 
         return "127.0.0.1";
     }
+
+    /**
+     * Generates a globally unique name, typically for use in PDP messages, to uniquely
+     * identify a PDP (or PAP), regardless on what cluster it resides.
+     *
+     * @param prefix text to be prepended to the generated value
+     * @return a globally unique name
+     */
+    public static String genUniqueName(String prefix) {
+        return prefix + "-" + UUID.randomUUID();
+    }
 }