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.DeleteDataTransactionUtil;
  28 import org.opendaylight.restconf.restful.utils.PatchDataTransactionUtil;
  29 import org.opendaylight.restconf.restful.utils.PostDataTransactionUtil;
  30 import org.opendaylight.restconf.restful.utils.PutDataTransactionUtil;
  31 import org.opendaylight.restconf.restful.utils.ReadDataTransactionUtil;
  32 import org.opendaylight.restconf.restful.utils.RestconfDataServiceConstant;
  33 import org.opendaylight.restconf.utils.parser.ParserIdentifier;
  34 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  35 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * Implementation of {@link RestconfDataService}
  41  */
  42 public class RestconfDataServiceImpl implements RestconfDataService {
  43
  44     private final static Logger LOG = LoggerFactory.getLogger(RestconfDataServiceImpl.class);
  45
  46     private final SchemaContextHandler schemaContextHandler;
  47     private final TransactionChainHandler transactionChainHandler;
  48
  49     public RestconfDataServiceImpl(final SchemaContextHandler schemaContextHandler,
  50             final TransactionChainHandler transactionChainHandler) {
  51         this.schemaContextHandler = schemaContextHandler;
  52         this.transactionChainHandler = transactionChainHandler;
  53     }
  54
  55     @Override
  56     public NormalizedNodeContext readData(final String identifier, final UriInfo uriInfo) {
  57         Preconditions.checkNotNull(identifier);
  58         final SchemaContextRef schemaContextRef = new SchemaContextRef(this.schemaContextHandler.get());
  59
  60         final InstanceIdentifierContext<?> instanceIdentifier = ParserIdentifier.toInstanceIdentifier(identifier, schemaContextRef.get());
  61         final DOMMountPoint mountPoint = instanceIdentifier.getMountPoint();
  62         final String value = uriInfo.getQueryParameters().getFirst(RestconfDataServiceConstant.CONTENT);
  63
  64         DOMDataReadWriteTransaction transaction = null;
  65         if (mountPoint == null) {
  66             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
  67         } else {
  68             transaction = transactionOfMountPoint(mountPoint);
  69         }
  70         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(instanceIdentifier, mountPoint,
  71                 transaction);
  72         final NormalizedNode<?, ?> node = ReadDataTransactionUtil.readData(value, transactionNode);
  73
  74         return new NormalizedNodeContext(instanceIdentifier, node);
  75     }
  76
  77     @Override
  78     public Response putData(final String identifier, final NormalizedNodeContext payload) {
  79         Preconditions.checkNotNull(identifier);
  80         Preconditions.checkNotNull(payload);
  81
  82         final InstanceIdentifierContext<? extends SchemaNode> iid = payload
  83                 .getInstanceIdentifierContext();
  84
  85         PutDataTransactionUtil.validInputData(iid.getSchemaNode(), payload);
  86         PutDataTransactionUtil.validTopLevelNodeName(iid.getInstanceIdentifier(), payload);
  87         PutDataTransactionUtil.validateListKeysEqualityInPayloadAndUri(payload);
  88
  89         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
  90         DOMDataReadWriteTransaction transaction = null;
  91         SchemaContextRef ref = null;
  92         if (mountPoint == null) {
  93             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
  94             ref = new SchemaContextRef(this.schemaContextHandler.get());
  95         } else {
  96             transaction = transactionOfMountPoint(mountPoint);
  97             ref = new SchemaContextRef(mountPoint.getSchemaContext());
  98         }
  99
 100         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 101                 payload.getInstanceIdentifierContext(), mountPoint, transaction);
 102         return PutDataTransactionUtil.putData(payload, ref, transactionNode);
 103     }
 104
 105     @Override
 106     public Response postData(final String identifier, final NormalizedNodeContext payload, final UriInfo uriInfo) {
 107         return postData(payload, uriInfo);
 108     }
 109
 110     @Override
 111     public Response postData(final NormalizedNodeContext payload, final UriInfo uriInfo) {
 112         Preconditions.checkNotNull(payload);
 113
 114         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
 115         DOMDataReadWriteTransaction transaction = null;
 116         SchemaContextRef ref = null;
 117         if (mountPoint == null) {
 118             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
 119             ref = new SchemaContextRef(this.schemaContextHandler.get());
 120         } else {
 121             transaction = transactionOfMountPoint(mountPoint);
 122             ref = new SchemaContextRef(mountPoint.getSchemaContext());
 123         }
 124         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 125                 payload.getInstanceIdentifierContext(), mountPoint, transaction);
 126         return PostDataTransactionUtil.postData(uriInfo, payload, transactionNode, ref);
 127     }
 128
 129     @Override
 130     public Response deleteData(final String identifier) {
 131         final SchemaContextRef schemaContextRef = new SchemaContextRef(this.schemaContextHandler.get());
 132         final InstanceIdentifierContext<?> instanceIdentifier = ParserIdentifier.toInstanceIdentifier(identifier,
 133                 schemaContextRef.get());
 134
 135         final DOMMountPoint mountPoint = instanceIdentifier.getMountPoint();
 136         final DOMDataReadWriteTransaction transaction;
 137         if (mountPoint == null) {
 138             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
 139         } else {
 140             transaction = transactionOfMountPoint(mountPoint);
 141         }
 142
 143         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(instanceIdentifier, mountPoint,
 144                 transaction);
 145         return DeleteDataTransactionUtil.deleteData(transactionNode);
 146     }
 147
 148     @Override
 149     public PATCHStatusContext patchData(final String identifier, final PATCHContext context, final UriInfo uriInfo) {
 150         Preconditions.checkNotNull(identifier);
 151         return patchData(context, uriInfo);
 152     }
 153
 154     @Override
 155     public PATCHStatusContext patchData(final PATCHContext context, final UriInfo uriInfo) {
 156         Preconditions.checkNotNull(context);
 157         final DOMMountPoint mountPoint = context.getInstanceIdentifierContext().getMountPoint();
 158
 159         final DOMDataReadWriteTransaction transaction;
 160         final SchemaContextRef ref;
 161         if (mountPoint == null) {
 162             transaction = this.transactionChainHandler.get().newReadWriteTransaction();
 163             ref = new SchemaContextRef(this.schemaContextHandler.get());
 164         } else {
 165             transaction = transactionOfMountPoint(mountPoint);
 166             ref = new SchemaContextRef(mountPoint.getSchemaContext());
 167         }
 168
 169         final TransactionVarsWrapper transactionNode = new TransactionVarsWrapper(
 170                 context.getInstanceIdentifierContext(), mountPoint, transaction);
 171
 172         return PatchDataTransactionUtil.patchData(context, transactionNode, ref);
 173     }
 174
 175     /**
 176      * Prepare transaction to read data of mount point, if these data are
 177      * present.
 178      * @param mountPoint
 179      * @return {@link DOMDataReadWriteTransaction}
 180      */
 181     private static DOMDataReadWriteTransaction transactionOfMountPoint(final DOMMountPoint mountPoint) {
 182         final Optional<DOMDataBroker> domDataBrokerService = mountPoint.getService(DOMDataBroker.class);
 183         if (domDataBrokerService.isPresent()) {
 184             return domDataBrokerService.get().newReadWriteTransaction();
 185         } else {
 186             final String errMsg = "DOM data broker service isn't available for mount point "
 187                     + mountPoint.getIdentifier();
 188             LOG.warn(errMsg);
 189             throw new RestconfDocumentedException(errMsg);
 190         }
 191     }
 192 }