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