1 files changed, 64 insertions, 0 deletions
diff --git a/framework/src/onos/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/DataPathIdGenerator.java b/framework/src/onos/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/DataPathIdGenerator.java
new file mode 100644
index 00000000..c2413475
--- /dev/null
+++ b/framework/src/onos/apps/vtn/vtnmgr/src/main/java/org/onosproject/vtn/util/DataPathIdGenerator.java
@@ -0,0 +1,64 @@
+package org.onosproject.vtn.util;
+
+import static org.onlab.util.Tools.toHex;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.Calendar;
+
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.DeviceId;
+
+public final class DataPathIdGenerator implements IdGenerator {
+    private static final String SCHEME = "of";
+    private String ipAddress;
+    private String timeStamp;
+
+    private DataPathIdGenerator(Builder builder) {
+        this.ipAddress = builder.ipAddress;
+        Calendar cal = Calendar.getInstance();
+        this.timeStamp = String.valueOf(cal.get(Calendar.SECOND))
+                + String.valueOf(cal.get(Calendar.MILLISECOND));
+    }
+
+    @Override
+    public long getNewId() {
+        String dpid = ipAddress.replace(".", "") + timeStamp;
+        return Long.parseLong(dpid);
+    }
+
+    public String getDpId() {
+        return toHex(getNewId());
+    }
+
+    public DeviceId getDeviceId() {
+        try {
+            URI uri = new URI(SCHEME, toHex(getNewId()), null);
+            return DeviceId.deviceId(uri);
+        } catch (URISyntaxException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Returns a new builder.
+     *
+     * @return new builder
+     */
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public static final class Builder {
+        private String ipAddress;
+
+        public Builder addIpAddress(String ipAddress) {
+            this.ipAddress = ipAddress;
+            return this;
+        }
+
+        public DataPathIdGenerator build() {
+            return new DataPathIdGenerator(this);
+        }
+    }
+}