BUG-2633 - Netconf northbound mapping.

[controller.git] / opendaylight / netconf / mdsal-netconf-connector / src / main / java / org / opendaylight / controller / netconf / mdsal / connector / ops / DiscardChanges.java

diff --git a/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DiscardChanges.java b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DiscardChanges.java
new file mode 100644 (file)
index 0000000..36f6d8e
--- /dev/null
+++ b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/DiscardChanges.java
@@ -0,0 +1,63 @@
+/*
+ * 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 java.util.HashMap;
+import java.util.Map;
+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.api.xml.XmlNetconfConstants;
+import org.opendaylight.controller.netconf.mdsal.connector.TransactionProvider;
+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 DiscardChanges extends AbstractLastNetconfOperation{
+
+    private static final Logger LOG = LoggerFactory.getLogger(DiscardChanges.class);
+
+    private static final String OPERATION_NAME = "discard-changes";
+
+    private final TransactionProvider transactionProvider;
+
+    public DiscardChanges(final String netconfSessionIdForReporting, final TransactionProvider transactionProvider) {
+        super(netconfSessionIdForReporting);
+        this.transactionProvider = transactionProvider;
+    }
+
+    @Override
+    protected Element handleWithNoSubsequentOperations(final Document document, final XmlElement operationElement) throws NetconfDocumentedException {
+        operationElement.getOnlyChildElement(OPERATION_NAME);
+
+        try {
+            transactionProvider.abortTransaction();
+        } catch (IllegalStateException e) {
+            LOG.warn("Abort failed ", e);
+            final Map<String, String> errorInfo = new HashMap<>();
+            errorInfo
+                    .put(ErrorTag.operation_failed.name(),
+                            "Operation failed. Use 'get-config' or 'edit-config' before triggering 'discard-changes' operation");
+            throw new NetconfDocumentedException(e.getMessage(), e, ErrorType.application, ErrorTag.operation_failed,
+                    ErrorSeverity.error, errorInfo);
+        }
+        return XmlUtil.createElement(document, XmlNetconfConstants.OK, Optional.<String>absent());
+    }
+
+    @Override
+    protected String getOperationName() {
+        return OPERATION_NAME;
+    }
+}