+/*
+ * Copyright (c) 2016 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.restconf.restful.utils;
+
+import com.google.common.util.concurrent.CheckedFuture;
+import com.google.common.util.concurrent.ListenableFuture;
+import java.net.URI;
+import java.util.concurrent.ExecutionException;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.core.UriBuilder;
+import javax.ws.rs.core.UriInfo;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
+import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
+import org.opendaylight.netconf.sal.restconf.impl.NormalizedNodeContext;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
+import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
+import org.opendaylight.restconf.common.references.SchemaContextRef;
+import org.opendaylight.restconf.restful.transaction.TransactionVarsWrapper;
+import org.opendaylight.restconf.utils.parser.ParserIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.AugmentationNode;
+import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
+import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
+import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
+import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Util class to post data to DS
+ *
+ */
+public final class PostDataTransactionUtil {
+
+ private static final Logger LOG = LoggerFactory.getLogger(PostDataTransactionUtil.class);
+
+ private PostDataTransactionUtil() {
+ throw new UnsupportedOperationException("Util class.");
+ }
+
+ /**
+ * Check mount point and prepare variables for post data
+ *
+ * @param uriInfo
+ *
+ * @param payload
+ * - data
+ * @param transactionNode
+ * - wrapper for transaction data
+ * @param schemaContextRef
+ * - reference to actual {@link SchemaContext}
+ * @return {@link CheckedFuture}
+ */
+ public static Response postData(final UriInfo uriInfo, final NormalizedNodeContext payload,
+ final TransactionVarsWrapper transactionNode, final SchemaContextRef schemaContextRef) {
+ final CheckedFuture<Void, TransactionCommitFailedException> future = submitData(
+ payload.getInstanceIdentifierContext().getInstanceIdentifier(), payload.getData(),
+ transactionNode, schemaContextRef.get());
+ final URI location = PostDataTransactionUtil.resolveLocation(uriInfo, transactionNode, schemaContextRef);
+ final ResponseFactory dataFactory = new ResponseFactory(
+ ReadDataTransactionUtil.readData(RestconfDataServiceConstant.ReadData.CONFIG, transactionNode),
+ location);
+ FutureCallbackTx.addCallback(future, transactionNode.getTransaction(),
+ RestconfDataServiceConstant.PostData.POST_TX_TYPE, dataFactory);
+ return dataFactory.build();
+ }
+
+ /**
+ * Post data by type
+ *
+ * @param path
+ * - path
+ * @param data
+ * - data
+ * @param transactionNode
+ * - wrapper for data to transaction
+ * @param schemaContext
+ * - schema context of data
+ * @return {@link CheckedFuture}
+ */
+ private static CheckedFuture<Void, TransactionCommitFailedException> submitData(final YangInstanceIdentifier path,
+ final NormalizedNode<?, ?> data, final TransactionVarsWrapper transactionNode,
+ final SchemaContext schemaContext) {
+ final DOMDataReadWriteTransaction transaction = transactionNode.getTransaction();
+ final NormalizedNode<?, ?> node = ImmutableNodes.fromInstanceId(schemaContext, path);
+ transaction.put(LogicalDatastoreType.CONFIGURATION, YangInstanceIdentifier.create(node.getIdentifier()), node);
+ TransactionUtil.ensureParentsByMerge(path, schemaContext, transaction);
+
+ if (data instanceof MapNode) {
+ for (final MapEntryNode child : ((MapNode) data).getValue()) {
+ putChild(child, transaction, path);
+ }
+ } else if (data instanceof AugmentationNode) {
+ for (final DataContainerChild<? extends PathArgument, ?> child : ((AugmentationNode) data).getValue()) {
+ putChild(child, transaction, path);
+ }
+ } else if (data instanceof ChoiceNode) {
+ for (final DataContainerChild<? extends PathArgument, ?> child : ((ChoiceNode) data).getValue()) {
+ putChild(child, transaction, path);
+ }
+ } else if (data instanceof LeafSetNode<?>) {
+ for (final LeafSetEntryNode<?> child : ((LeafSetNode<?>) data).getValue()) {
+ putChild(child, transaction, path);
+ }
+ } else if (data instanceof ContainerNode) {
+ for (final DataContainerChild<? extends PathArgument, ?> child : ((ContainerNode) data).getValue()) {
+ putChild(child, transaction, path);
+ }
+ }
+ return transaction.submit();
+ }
+
+ /**
+ * Prepare data for submit
+ *
+ * @param child
+ * - data
+ * @param readWriteTx
+ * - transaction
+ * @param path
+ * - path to data
+ */
+ private static void putChild(final NormalizedNode<?, ?> child, final DOMDataReadWriteTransaction readWriteTx,
+ final YangInstanceIdentifier path) {
+ final YangInstanceIdentifier childPath = path.node(child.getIdentifier());
+ checkItemDesNotExits(childPath, readWriteTx);
+ readWriteTx.put(LogicalDatastoreType.CONFIGURATION, childPath, child);
+ }
+
+ /**
+ * Check if data posted to create doesn't exits.
+ *
+ * @param path
+ * - path to data
+ * @param readWriteTx
+ * - read write transaction
+ */
+ private static void checkItemDesNotExits(final YangInstanceIdentifier path,
+ final DOMDataReadWriteTransaction readWriteTx) {
+ final ListenableFuture<Boolean> existData = readWriteTx.exists(LogicalDatastoreType.CONFIGURATION, path);
+ try {
+ if (existData.get()) {
+ readWriteTx.cancel();
+ throw new RestconfDocumentedException("Data already exists for path: " + path, ErrorType.PROTOCOL,
+ ErrorTag.DATA_EXISTS);
+ }
+ } catch (InterruptedException | ExecutionException e) {
+ LOG.warn("It wasn't possible to get data loaded from datastore at path {}", path, e);
+ }
+ }
+
+ /**
+ * Get location from {@link YangInstanceIdentifier} and {@link UriInfo}
+ *
+ * @param uriInfo
+ * - uri info
+ * @param transactionNode
+ * - wrapper for data of transaction
+ * @param schemaContextRef
+ * -reference to {@link SchemaContext}
+ * @return {@link URI}
+ */
+ private static URI resolveLocation(final UriInfo uriInfo, final TransactionVarsWrapper transactionNode,
+ final SchemaContextRef schemaContextRef) {
+ if (uriInfo == null) {
+ return null;
+ }
+
+ final UriBuilder uriBuilder = uriInfo.getBaseUriBuilder();
+ uriBuilder.path("data");
+ uriBuilder.path(ParserIdentifier.stringFromYangInstanceIdentifier(transactionNode.getInstanceIdentifier().getInstanceIdentifier(),
+ schemaContextRef.get()));
+
+ return uriBuilder.build();
+ }
+}
+