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