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