restconf/restconf-nb-rfc8040/src/main/java/org/opendaylight/restconf/nb/rfc8040/rests/services/impl/RestconfInvokeOperationsServiceImpl.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.nb.rfc8040.rests.services.impl;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import java.util.Optional;
  13 import javax.ws.rs.Path;
  14 import javax.ws.rs.WebApplicationException;
  15 import javax.ws.rs.core.Response;
  16 import javax.ws.rs.core.UriInfo;
  17 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
  18 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  19 import org.opendaylight.mdsal.dom.api.DOMRpcService;
  20 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  21 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  22 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
  23 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
  24 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
  25 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  26 import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfInvokeOperationsService;
  27 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfInvokeOperationsUtil;
  28 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants;
  29 import org.opendaylight.yangtools.yang.common.ErrorType;
  30 import org.opendaylight.yangtools.yang.common.QName;
  31 import org.opendaylight.yangtools.yang.common.XMLNamespace;
  32 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  33 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  34 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  35 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
  36
  37 /**
  38  * Implementation of {@link RestconfInvokeOperationsService}.
  39  *
  40  */
  41 @Path("/")
  42 public class RestconfInvokeOperationsServiceImpl implements RestconfInvokeOperationsService {
  43     private static final XMLNamespace SAL_REMOTE_NAMESPACE =
  44         XMLNamespace.of("urn:opendaylight:params:xml:ns:yang:controller:md:sal:remote");
  45
  46     private final DOMRpcService rpcService;
  47     private final SchemaContextHandler schemaContextHandler;
  48
  49     public RestconfInvokeOperationsServiceImpl(final DOMRpcService rpcService,
  50             final SchemaContextHandler schemaContextHandler) {
  51         this.rpcService = requireNonNull(rpcService);
  52         this.schemaContextHandler = requireNonNull(schemaContextHandler);
  53     }
  54
  55     @Override
  56     public NormalizedNodeContext invokeRpc(final String identifier, final NormalizedNodeContext payload,
  57             final UriInfo uriInfo) {
  58         final EffectiveModelContext refSchemaCtx = this.schemaContextHandler.get();
  59         final QName schemaPath = payload.getInstanceIdentifierContext().getSchemaNode().getQName();
  60         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
  61         final XMLNamespace namespace = payload.getInstanceIdentifierContext().getSchemaNode().getQName().getNamespace();
  62
  63         final DOMRpcResult response;
  64         final EffectiveModelContext schemaContextRef;
  65         if (mountPoint == null) {
  66             if (SAL_REMOTE_NAMESPACE.equals(namespace)) {
  67                 if (identifier.contains(RestconfStreamsConstants.CREATE_DATA_SUBSCRIPTION)) {
  68                     response = CreateStreamUtil.createDataChangeNotifiStream(payload, refSchemaCtx);
  69                 } else {
  70                     throw new RestconfDocumentedException("Not supported operation", ErrorType.RPC,
  71                             ErrorTag.OPERATION_NOT_SUPPORTED);
  72                 }
  73             } else {
  74                 response = RestconfInvokeOperationsUtil.invokeRpc(payload.getData(), schemaPath, this.rpcService);
  75             }
  76             schemaContextRef = this.schemaContextHandler.get();
  77         } else {
  78             response = RestconfInvokeOperationsUtil.invokeRpc(payload.getData(), schemaPath, mountPoint);
  79             schemaContextRef = modelContext(mountPoint);
  80         }
  81
  82         final DOMRpcResult result = RestconfInvokeOperationsUtil.checkResponse(response);
  83
  84         RpcDefinition resultNodeSchema = null;
  85         NormalizedNode resultData = null;
  86         if (result != null && result.getResult() != null) {
  87             resultData = result.getResult();
  88             resultNodeSchema = (RpcDefinition) payload.getInstanceIdentifierContext().getSchemaNode();
  89         }
  90
  91         if (resultData != null && ((ContainerNode) resultData).isEmpty()) {
  92             throw new WebApplicationException(Response.Status.NO_CONTENT);
  93         } else {
  94             return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, resultNodeSchema, mountPoint,
  95                     schemaContextRef), resultData);
  96         }
  97     }
  98
  99     private static EffectiveModelContext modelContext(final DOMMountPoint mountPoint) {
 100         return mountPoint.getService(DOMSchemaService.class)
 101             .flatMap(svc -> Optional.ofNullable(svc.getGlobalContext()))
 102             .orElse(null);
 103     }
 104 }