2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.netconf.mdsal.connector.ops.get;
10 import java.util.Optional;
11 import java.util.concurrent.ExecutionException;
12 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
13 import org.opendaylight.mdsal.dom.api.DOMDataTreeReadWriteTransaction;
14 import org.opendaylight.netconf.api.DocumentedException;
15 import org.opendaylight.netconf.api.xml.XmlElement;
16 import org.opendaylight.netconf.api.xml.XmlNetconfConstants;
17 import org.opendaylight.netconf.mdsal.connector.CurrentSchemaContext;
18 import org.opendaylight.netconf.mdsal.connector.TransactionProvider;
19 import org.opendaylight.netconf.mdsal.connector.ops.Datastore;
20 import org.opendaylight.yangtools.yang.common.ErrorSeverity;
21 import org.opendaylight.yangtools.yang.common.ErrorTag;
22 import org.opendaylight.yangtools.yang.common.ErrorType;
23 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
25 import org.slf4j.Logger;
26 import org.slf4j.LoggerFactory;
27 import org.w3c.dom.Document;
28 import org.w3c.dom.Element;
30 public class GetConfig extends AbstractGet {
31 private static final Logger LOG = LoggerFactory.getLogger(GetConfig.class);
32 private static final String OPERATION_NAME = "get-config";
34 private final TransactionProvider transactionProvider;
36 public GetConfig(final String netconfSessionIdForReporting, final CurrentSchemaContext schemaContext,
37 final TransactionProvider transactionProvider) {
38 super(netconfSessionIdForReporting, schemaContext);
39 this.transactionProvider = transactionProvider;
43 protected Element handleWithNoSubsequentOperations(final Document document, final XmlElement operationElement)
44 throws DocumentedException {
45 GetConfigExecution getConfigExecution = null;
47 getConfigExecution = GetConfigExecution.fromXml(operationElement, OPERATION_NAME);
49 } catch (final DocumentedException e) {
50 LOG.warn("Get request processing failed on session: {}", getNetconfSessionIdForReporting(), e);
54 final Optional<YangInstanceIdentifier> dataRootOptional = getDataRootFromFilter(operationElement);
55 if (dataRootOptional.isEmpty()) {
56 return document.createElement(XmlNetconfConstants.DATA_KEY);
59 final YangInstanceIdentifier dataRoot = dataRootOptional.orElseThrow();
61 // FIXME: Proper exception should be thrown
62 final var datastore = getConfigExecution.getDatastore()
63 .orElseThrow(() -> new IllegalStateException("Source element missing from request"));
65 final DOMDataTreeReadWriteTransaction rwTx = getTransaction(datastore);
67 final Optional<NormalizedNode> normalizedNodeOptional = rwTx.read(
68 LogicalDatastoreType.CONFIGURATION, dataRoot).get();
69 if (datastore == Datastore.running) {
70 transactionProvider.abortRunningTransaction(rwTx);
73 if (normalizedNodeOptional.isEmpty()) {
74 return document.createElement(XmlNetconfConstants.DATA_KEY);
77 return serializeNodeWithParentStructure(document, dataRoot, normalizedNodeOptional.orElseThrow());
78 } catch (final InterruptedException | ExecutionException e) {
79 LOG.warn("Unable to read data: {}", dataRoot, e);
80 throw new IllegalStateException("Unable to read data " + dataRoot, e);
84 private DOMDataTreeReadWriteTransaction getTransaction(final Datastore datastore) throws DocumentedException {
85 if (datastore == Datastore.candidate) {
86 return transactionProvider.getOrCreateTransaction();
87 } else if (datastore == Datastore.running) {
88 return transactionProvider.createRunningTransaction();
90 throw new DocumentedException("Incorrect Datastore: ", ErrorType.PROTOCOL, ErrorTag.BAD_ELEMENT,
95 protected String getOperationName() {
96 return OPERATION_NAME;