Decouple config and netconf subsystems.

[controller.git] / opendaylight / netconf / sal-netconf-connector / src / main / java / org / opendaylight / controller / sal / connect / util / MessageCounter.java

diff --git a/opendaylight/netconf/sal-netconf-connector/src/main/java/org/opendaylight/controller/sal/connect/util/MessageCounter.java b/opendaylight/netconf/sal-netconf-connector/src/main/java/org/opendaylight/controller/sal/connect/util/MessageCounter.java
new file mode 100644 (file)
index 0000000..738682f
--- /dev/null
+++ b/opendaylight/netconf/sal-netconf-connector/src/main/java/org/opendaylight/controller/sal/connect/util/MessageCounter.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.sal.connect.util;
+
+import com.google.common.base.Preconditions;
+import com.google.common.base.Strings;
+import java.util.concurrent.atomic.AtomicInteger;
+
+public class MessageCounter {
+    final AtomicInteger messageId = new AtomicInteger(0);
+
+    private static final String messageIdBlueprint = "%s-%s";
+
+    public String getNewMessageId(final String prefix) {
+        Preconditions.checkArgument(Strings.isNullOrEmpty(prefix) == false, "Null or empty prefix");
+        return String.format(messageIdBlueprint, prefix, getNewMessageId());
+    }
+
+    public String getNewMessageId() {
+        return Integer.toString(messageId.getAndIncrement());
+    }
+}