netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/netconf/mdsal/connector/ops/Lock.java

   1 /*
   2  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.netconf.mdsal.connector.ops;
  10
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.controller.config.util.xml.DocumentedException;
  13 import org.opendaylight.controller.config.util.xml.XmlElement;
  14 import org.opendaylight.controller.config.util.xml.XmlUtil;
  15 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
  16 import org.opendaylight.netconf.util.mapping.AbstractSingletonNetconfOperation;
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19 import org.w3c.dom.Document;
  20 import org.w3c.dom.Element;
  21
  22 // FIXME Duplicated code
  23 // netconf/netconf/config-netconf-connector/src/main/java/org/opendaylight/netconf/confignetconfconnector/operations/Lock.java
  24 public class Lock extends AbstractSingletonNetconfOperation {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(Lock.class);
  27
  28     private static final String OPERATION_NAME = "lock";
  29     private static final String TARGET_KEY = "target";
  30
  31     public Lock(final String netconfSessionIdForReporting) {
  32         super(netconfSessionIdForReporting);
  33     }
  34
  35     @Override
  36     protected Element handleWithNoSubsequentOperations(final Document document, final XmlElement operationElement) throws DocumentedException {
  37         final Datastore targetDatastore = extractTargetParameter(operationElement);
  38         if (targetDatastore == Datastore.candidate) {
  39             LOG.debug("Locking candidate datastore on session: {}", getNetconfSessionIdForReporting());
  40             return XmlUtil.createElement(document, XmlNetconfConstants.OK, Optional.<String>absent());
  41         }
  42
  43         throw new DocumentedException("Unable to lock " + targetDatastore + " datastore", DocumentedException.ErrorType.application,
  44                 DocumentedException.ErrorTag.operation_not_supported, DocumentedException.ErrorSeverity.error);
  45     }
  46
  47     static Datastore extractTargetParameter(final XmlElement operationElement) throws DocumentedException {
  48         final XmlElement targetElement = operationElement.getOnlyChildElementWithSameNamespace(TARGET_KEY);
  49         final XmlElement targetChildNode = targetElement.getOnlyChildElementWithSameNamespace();
  50         return Datastore.valueOf(targetChildNode.getName());
  51     }
  52
  53     @Override
  54     protected String getOperationName() {
  55         return OPERATION_NAME;
  56     }
  57
  58 }