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diff --git a/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/Lock.java b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/Lock.java
new file mode 100644
index 0000000000..db912c5fc0
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+++ b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/Lock.java
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 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.netconf.mdsal.connector.ops;
+
+import com.google.common.base.Optional;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
+import org.opendaylight.controller.netconf.api.xml.XmlNetconfConstants;
+import org.opendaylight.controller.netconf.util.exception.MissingNameSpaceException;
+import org.opendaylight.controller.netconf.util.exception.UnexpectedNamespaceException;
+import org.opendaylight.controller.netconf.util.mapping.AbstractLastNetconfOperation;
+import org.opendaylight.controller.netconf.util.xml.XmlElement;
+import org.opendaylight.controller.netconf.util.xml.XmlUtil;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+public class Lock extends AbstractLastNetconfOperation{
+
+    private static final Logger LOG = LoggerFactory.getLogger(Lock.class);
+
+    private static final String OPERATION_NAME = "lock";
+    private static final String TARGET_KEY = "target";
+
+    public Lock(final String netconfSessionIdForReporting) {
+        super(netconfSessionIdForReporting);
+    }
+
+    @Override
+    protected Element handleWithNoSubsequentOperations(final Document document, final XmlElement operationElement) throws NetconfDocumentedException {
+        final Datastore targetDatastore = extractTargetParameter(operationElement);
+        if (targetDatastore == Datastore.candidate) {
+            LOG.debug("Locking candidate datastore on session: {}", getNetconfSessionIdForReporting());
+            return XmlUtil.createElement(document, XmlNetconfConstants.OK, Optional.<String>absent());
+        }
+
+        throw new NetconfDocumentedException("Unable to lock " + targetDatastore + " datastore", NetconfDocumentedException.ErrorType.application,
+                NetconfDocumentedException.ErrorTag.operation_not_supported, NetconfDocumentedException.ErrorSeverity.error);
+    }
+
+    static Datastore extractTargetParameter(final XmlElement operationElement) throws NetconfDocumentedException {
+        final XmlElement targetChildNode;
+        try {
+            final XmlElement targetElement = operationElement.getOnlyChildElementWithSameNamespace(TARGET_KEY);
+            targetChildNode = targetElement.getOnlyChildElementWithSameNamespace();
+        } catch (final MissingNameSpaceException | UnexpectedNamespaceException e) {
+            LOG.trace("Can't get only child element with same namespace", e);
+            throw NetconfDocumentedException.wrap(e);
+        }
+
+        return Datastore.valueOf(targetChildNode.getName());
+    }
+
+    @Override
+    protected String getOperationName() {
+        return OPERATION_NAME;
+    }
+}