--- /dev/null
+/*
+ * Copyright (c) 2013 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.confignetconfconnector.operations;
+
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.config.api.ValidationException;
+import org.opendaylight.controller.config.util.ConfigRegistryClient;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorSeverity;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorTag;
+import org.opendaylight.controller.netconf.api.NetconfDocumentedException.ErrorType;
+import org.opendaylight.controller.netconf.confignetconfconnector.transactions.TransactionProvider;
+import org.opendaylight.controller.netconf.util.xml.XmlElement;
+import org.opendaylight.controller.netconf.util.xml.XmlNetconfConstants;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Validate extends AbstractConfigNetconfOperation {
+
+ public static final String VALIDATE = "validate";
+
+ private static final Logger logger = LoggerFactory.getLogger(Validate.class);
+
+ private final TransactionProvider transactionProvider;
+
+ public Validate(final TransactionProvider transactionProvider, ConfigRegistryClient configRegistryClient,
+ String netconfSessionIdForReporting) {
+ super(configRegistryClient, netconfSessionIdForReporting);
+ this.transactionProvider = transactionProvider;
+ }
+
+ private void checkXml(XmlElement xml) {
+ xml.checkName(VALIDATE);
+ xml.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
+
+ XmlElement sourceElement = xml.getOnlyChildElement(XmlNetconfConstants.SOURCE_KEY,
+ XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
+ XmlElement sourceChildNode = sourceElement.getOnlyChildElement();
+
+ sourceChildNode.checkNamespace(XmlNetconfConstants.URN_IETF_PARAMS_XML_NS_NETCONF_BASE_1_0);
+ String datastoreValue = sourceChildNode.getName();
+ Datastore sourceDatastore = Datastore.valueOf(datastoreValue);
+
+ Preconditions.checkState(sourceDatastore == Datastore.candidate, "Only " + Datastore.candidate
+ + " is supported as source for " + VALIDATE + " but was " + datastoreValue);
+ }
+
+ @Override
+ protected String getOperationName() {
+ return VALIDATE;
+ }
+
+ @Override
+ protected Element handle(Document document, XmlElement xml) throws NetconfDocumentedException {
+ try {
+ checkXml(xml);
+ } catch (IllegalStateException e) {
+ logger.warn("Rpc error: {}", ErrorTag.missing_attribute, e);
+ final Map<String, String> errorInfo = new HashMap<>();
+ errorInfo.put(ErrorTag.missing_attribute.name(), "Missing value of datastore attribute");
+ throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.missing_attribute,
+ ErrorSeverity.error, errorInfo);
+ } catch (final IllegalArgumentException e) {
+ logger.warn("Rpc error: {}", ErrorTag.bad_attribute, e);
+ final Map<String, String> errorInfo = new HashMap<>();
+ errorInfo.put(ErrorTag.bad_attribute.name(), e.getMessage());
+ throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.rpc, ErrorTag.bad_attribute,
+ ErrorSeverity.error, errorInfo);
+ }
+
+ try {
+ transactionProvider.validateTransaction();
+ } catch (ValidationException e) {
+ logger.warn("Validation failed", e);
+ final Map<String, String> errorInfo = new HashMap<>();
+ errorInfo.put(ErrorTag.operation_failed.name(), "Validation failed");
+ throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application, ErrorTag.operation_failed,
+ ErrorSeverity.error, errorInfo);
+ } catch (IllegalStateException e) {
+ logger.warn("Validation failed", e);
+ final Map<String, String> errorInfo = new HashMap<>();
+ errorInfo
+ .put(ErrorTag.operation_failed.name(),
+ "Datastore is not present. Use 'get-config' or 'edit-config' before triggering 'operations' operation");
+ throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application, ErrorTag.operation_failed,
+ ErrorSeverity.error, errorInfo);
+
+ }
+
+ logger.info("Datastore {} validated successfully", Datastore.candidate);
+
+ return document.createElement(XmlNetconfConstants.OK);
+ }
+}