BUG-2633 - Netconf northbound mapping.

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

diff --git a/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/get/Get.java b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/get/Get.java
new file mode 100644 (file)
index 0000000..a2b2fbb
--- /dev/null
+++ b/opendaylight/netconf/mdsal-netconf-connector/src/main/java/org/opendaylight/controller/netconf/mdsal/connector/ops/get/Get.java
@@ -0,0 +1,82 @@
+/*
+ * 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.get;
+
+import com.google.common.base.Optional;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
+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.mdsal.connector.CurrentSchemaContext;
+import org.opendaylight.controller.netconf.mdsal.connector.TransactionProvider;
+import org.opendaylight.controller.netconf.mdsal.connector.ops.Datastore;
+import org.opendaylight.controller.netconf.util.xml.XmlElement;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+public class Get extends AbstractGet {
+
+    private static final Logger LOG = LoggerFactory.getLogger(Get.class);
+
+    private static final String OPERATION_NAME = "get";
+
+    private final TransactionProvider transactionProvider;
+
+    public Get(final String netconfSessionIdForReporting, final CurrentSchemaContext schemaContext, final TransactionProvider transactionProvider) {
+        super(netconfSessionIdForReporting, schemaContext);
+        this.transactionProvider = transactionProvider;
+    }
+
+    @Override
+    protected Element handleWithNoSubsequentOperations(Document document, XmlElement operationElement) throws NetconfDocumentedException {
+        GetConfigExecution getConfigExecution = null;
+        try {
+            getConfigExecution = GetConfigExecution.fromXml(operationElement, OPERATION_NAME);
+
+        } catch (final NetconfDocumentedException e) {
+            LOG.warn("Get request processing failed on session: {}", getNetconfSessionIdForReporting(), e);
+            throw e;
+        }
+
+        final YangInstanceIdentifier dataRoot = ROOT;
+        DOMDataReadWriteTransaction rwTx = getTransaction(getConfigExecution.getDatastore());
+        try {
+            final Optional<NormalizedNode<?, ?>> normalizedNodeOptional = rwTx.read(LogicalDatastoreType.OPERATIONAL, dataRoot).checkedGet();
+            if (getConfigExecution.getDatastore() == Datastore.running) {
+                transactionProvider.abortRunningTransaction(rwTx);
+                rwTx = null;
+            }
+            return (Element) transformNormalizedNode(document, normalizedNodeOptional.get(), dataRoot);
+        } catch (ReadFailedException e) {
+            LOG.warn("Unable to read data: {}", dataRoot, e);
+            throw new IllegalStateException("Unable to read data " + dataRoot, e);
+        }
+    }
+
+    private DOMDataReadWriteTransaction getTransaction(Datastore datastore) throws NetconfDocumentedException{
+        if (datastore == Datastore.candidate) {
+            return transactionProvider.getOrCreateTransaction();
+        } else if (datastore == Datastore.running) {
+            return transactionProvider.createRunningTransaction();
+        }
+        throw new NetconfDocumentedException("Incorrect Datastore: ", ErrorType.protocol, ErrorTag.bad_element, ErrorSeverity.error);
+    }
+
+    @Override
+    protected String getOperationName() {
+        return OPERATION_NAME;
+    }
+}