opendaylight/netconf/config-netconf-connector/src/main/java/org/opendaylight/controller/netconf/confignetconfconnector/operations/Validate.java

   1 /*
   2  * Copyright (c) 2013 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.controller.netconf.confignetconfconnector.operations;
  10
  11 import com.google.common.base.Preconditions;
  12 import org.opendaylight.controller.config.api.ValidationException;
  13 import org.opendaylight.controller.config.util.ConfigRegistryClient;
  14 import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
  15 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorSeverity;
  16 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorTag;
  17 import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorType;
  18 import org.opendaylight.controller.netconf.confignetconfconnector.transactions.TransactionProvider;
  19 import org.opendaylight.controller.netconf.util.xml.XmlElement;
  20 import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23 import org.w3c.dom.Document;
  24 import org.w3c.dom.Element;
  25
  26 import java.util.HashMap;
  27 import java.util.Map;
  28
  29 public class Validate extends AbstractConfigNetconfOperation {
  30
  31     public static final String VALIDATE = "validate";
  32
  33     private static final Logger logger = LoggerFactory.getLogger(Validate.class);
  34
  35     private final TransactionProvider transactionProvider;
  36
  37     public Validate(final TransactionProvider transactionProvider, ConfigRegistryClient configRegistryClient,
  38             String netconfSessionIdForReporting) {
  39         super(configRegistryClient, netconfSessionIdForReporting);
  40         this.transactionProvider = transactionProvider;
  41     }
  42
  43     private void checkXml(XmlElement xml) {
  44         xml.checkName(VALIDATE);
  45         xml.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  46
  47         XmlElement sourceElement = xml.getOnlyChildElement(XmlNetconfConstants.SOURCE_KEY,
  48                 XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  49         XmlElement sourceChildNode = sourceElement.getOnlyChildElement();
  50
  51         sourceChildNode.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
  52         String datastoreValue = sourceChildNode.getName();
  53         Datastore sourceDatastore = Datastore.valueOf(datastoreValue);
  54
  55         Preconditions.checkState(sourceDatastore == Datastore.candidate, "Only " + Datastore.candidate
  56                 + " is supported as source for " + VALIDATE + " but was " + datastoreValue);
  57     }
  58
  59     @Override
  60     protected String getOperationName() {
  61         return VALIDATE;
  62     }
  63
  64     @Override
  65     protected Element handle(Document document, XmlElement xml) throws NetconfDocumentedException {
  66         try {
  67             checkXml(xml);
  68         } catch (IllegalStateException e) {
  69             logger.warn("Rpc error: {}", ErrorTag.missing_attribute, e);
  70             final Map<String, String> errorInfo = new HashMap<>();
  71             errorInfo.put(ErrorTag.missing_attribute.name(), "Missing value of datastore attribute");
  72             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.missing_attribute,
  73                     ErrorSeverity.error, errorInfo);
  74         } catch (final IllegalArgumentException e) {
  75             logger.warn("Rpc error: {}", ErrorTag.bad_attribute, e);
  76             final Map<String, String> errorInfo = new HashMap<>();
  77             errorInfo.put(ErrorTag.bad_attribute.name(), e.getMessage());
  78             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.bad_attribute,
  79                     ErrorSeverity.error, errorInfo);
  80         }
  81
  82         try {
  83             transactionProvider.validateTransaction();
  84         } catch (ValidationException e) {
  85             logger.warn("Validation failed", e);
  86             final Map<String, String> errorInfo = new HashMap<>();
  87             errorInfo.put(ErrorTag.operation_failed.name(), "Validation failed");
  88             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application, ErrorTag.operation_failed,
  89                     ErrorSeverity.error, errorInfo);
  90         } catch (IllegalStateException e) {
  91             logger.warn("Validation failed", e);
  92             final Map<String, String> errorInfo = new HashMap<>();
  93             errorInfo
  94                     .put(ErrorTag.operation_failed.name(),
  95                             "Datastore is not present. Use 'get-config' or 'edit-config' before triggering 'operations' operation");
  96             throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application, ErrorTag.operation_failed,
  97                     ErrorSeverity.error, errorInfo);
  98
  99         }
 100
 101         logger.info("Datastore {} validated successfully", Datastore.candidate);
 102
 103         return document.createElement(XmlNetconfConstants.OK);
 104     }
 105 }