restconf/sal-rest-connector/src/main/java/org/opendaylight/restconf/restful/services/impl/RestconfDataServiceImpl.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.restconf.restful.services.impl;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12 import javax.ws.rs.core.Response;
  13 import javax.ws.rs.core.UriInfo;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  15 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  16 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  17 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
  18 import org.opendaylight.netconf.sal.restconf.impl.NormalizedNodeContext;
  19 import org.opendaylight.netconf.sal.restconf.impl.PATCHContext;
  20 import org.opendaylight.netconf.sal.restconf.impl.PATCHStatusContext;
  21 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
  22 import org.opendaylight.restconf.common.references.SchemaContextRef;
  23 import org.opendaylight.restconf.handlers.SchemaContextHandler;
  24 import org.opendaylight.restconf.handlers.TransactionChainHandler;
  25 import org.opendaylight.restconf.restful.services.api.RestconfDataService;
  26 import org.opendaylight.restconf.restful.transaction.TransactionVarsWrapper;
  27 import org.opendaylight.restconf.restful.utils.PostDataTransactionUtil;
  28 import org.opendaylight.restconf.restful.utils.PutDataTransactionUtil;
  29 import org.opendaylight.restconf.restful.utils.ReadDataTransactionUtil;
  30 import org.opendaylight.restconf.restful.utils.RestconfDataServiceConstant;
  31 import org.opendaylight.restconf.utils.parser.ParserIdentifier;
  32 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  33 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 /**
  38  * Implementation of {@link RestconfDataService}
  39  */
  40 public class RestconfDataServiceImpl implements RestconfDataService {
  41
  42     private final static Logger LOG = LoggerFactory.getLogger(RestconfDataServiceImpl.class);
  43
  44     private SchemaContextHandler schemaContextHandler;
  45     private TransactionChainHandler transactionChainHandler;
  46
  47     @Override
  48     public NormalizedNodeContext readData(final String identifier, final UriInfo uriInfo) {
  49         Preconditions.checkNotNull(identifier);
  50         final SchemaContextRef schemaContextRef = new SchemaContextRef(this.schemaContextHandler.get());
  51
  52         final InstanceIdentifierContext<?> instanceIdentifier = ParserIdentifier.toInstanceIdentifier(identifier, schemaContextRef.get());
  53         final DOMMountPoint mountPoint = instanceIdentifier.getMountPoint();
  54         final String value = uriInfo.getQueryParameters().getFirst(RestconfDataServiceConstant.CONTENT);
  55
  56         DOMDataReadWriteTransaction transaction = null;
  57         if (mountPoint == null) {
  58             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
  59         } else {
  60             transaction = transactionOfMountPoint(mountPoint);
  61         }
  62         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(instanceIdentifier, mountPoint,
  63                 transaction);
  64         final NormalizedNode<?, ?> node = ReadDataTransactionUtil.readData(value, transactionNode);
  65
  66         return new NormalizedNodeContext(instanceIdentifier, node);
  67     }
  68
  69     @Override
  70     public Response putData(final String identifier, final NormalizedNodeContext payload) {
  71         Preconditions.checkNotNull(identifier);
  72         Preconditions.checkNotNull(payload);
  73
  74         final InstanceIdentifierContext<? extends SchemaNode> iid = payload
  75                 .getInstanceIdentifierContext();
  76
  77         PutDataTransactionUtil.validInputData(iid.getSchemaNode(), payload);
  78         PutDataTransactionUtil.validTopLevelNodeName(iid.getInstanceIdentifier(), payload);
  79         PutDataTransactionUtil.validateListKeysEqualityInPayloadAndUri(payload);
  80
  81         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
  82         DOMDataReadWriteTransaction transaction = null;
  83         SchemaContextRef ref = null;
  84         if (mountPoint == null) {
  85             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
  86             ref = new SchemaContextRef(this.schemaContextHandler.get());
  87         } else {
  88             transaction = transactionOfMountPoint(mountPoint);
  89             ref = new SchemaContextRef(mountPoint.getSchemaContext());
  90         }
  91
  92         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
  93                 payload.getInstanceIdentifierContext(), mountPoint, transaction);
  94         return PutDataTransactionUtil.putData(payload, ref, transactionNode);
  95     }
  96
  97     @Override
  98     public Response postData(final String identifier, final NormalizedNodeContext payload, final UriInfo uriInfo) {
  99         return postData(payload, uriInfo);
 100     }
 101
 102     @Override
 103     public Response postData(final NormalizedNodeContext payload, final UriInfo uriInfo) {
 104         Preconditions.checkNotNull(payload);
 105
 106         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
 107         DOMDataReadWriteTransaction transaction = null;
 108         SchemaContextRef ref = null;
 109         if (mountPoint == null) {
 110             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
 111             ref = new SchemaContextRef(this.schemaContextHandler.get());
 112         } else {
 113             transaction = transactionOfMountPoint(mountPoint);
 114             ref = new SchemaContextRef(mountPoint.getSchemaContext());
 115         }
 116         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 117                 payload.getInstanceIdentifierContext(), mountPoint, transaction);
 118         return PostDataTransactionUtil.postData(uriInfo, payload, transactionNode, ref);
 119     }
 120
 121     @Override
 122     public Response deleteData(final String identifier) {
 123         throw new UnsupportedOperationException("Not yet implemented.");
 124     }
 125
 126     @Override
 127     public PATCHStatusContext patchData(final String identifier, final PATCHContext context, final UriInfo uriInfo) {
 128         throw new UnsupportedOperationException("Not yet implemented.");
 129     }
 130
 131     @Override
 132     public PATCHStatusContext patchData(final PATCHContext context, final UriInfo uriInfo) {
 133         throw new UnsupportedOperationException("Not yet implemented.");
 134     }
 135
 136     /**
 137      * Prepare transaction to read data of mount point, if these data are
 138      * present.
 139      * @param mountPoint
 140      *
 141      * @param transactionNode
 142      *            - {@link TransactionVarsWrapper} - wrapper for variables
 143      * @return {@link NormalizedNode}
 144      */
 145     private static DOMDataReadWriteTransaction transactionOfMountPoint(final DOMMountPoint mountPoint) {
 146         final Optional<DOMDataBroker> domDataBrokerService = mountPoint.getService(DOMDataBroker.class);
 147         if (domDataBrokerService.isPresent()) {
 148             return domDataBrokerService.get().newReadWriteTransaction();
 149         } else {
 150             final String errMsg = "DOM data broker service isn't available for mount point "
 151                     + mountPoint.getIdentifier();
 152             LOG.warn(errMsg);
 153             throw new RestconfDocumentedException(errMsg);
 154         }
 155     }
 156 }