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 java.net.URI;
  11 import javax.ws.rs.Path;
  12 import javax.ws.rs.WebApplicationException;
  13 import javax.ws.rs.core.Response;
  14 import javax.ws.rs.core.UriInfo;
  15 import org.opendaylight.mdsal.dom.api.DOMMountPoint;
  16 import org.opendaylight.mdsal.dom.api.DOMRpcResult;
  17 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  18 import org.opendaylight.restconf.common.context.NormalizedNodeContext;
  19 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
  20 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
  21 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
  22 import org.opendaylight.restconf.nb.rfc8040.handlers.RpcServiceHandler;
  23 import org.opendaylight.restconf.nb.rfc8040.handlers.SchemaContextHandler;
  24 import org.opendaylight.restconf.nb.rfc8040.rests.services.api.RestconfInvokeOperationsService;
  25 import org.opendaylight.restconf.nb.rfc8040.rests.utils.CreateStreamUtil;
  26 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfInvokeOperationsUtil;
  27 import org.opendaylight.restconf.nb.rfc8040.rests.utils.RestconfStreamsConstants;
  28 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  29 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  30 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
  31 import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
  32 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  33
  34 /**
  35  * Implementation of {@link RestconfInvokeOperationsService}.
  36  *
  37  */
  38 @Path("/")
  39 public class RestconfInvokeOperationsServiceImpl implements RestconfInvokeOperationsService {
  40
  41     private volatile RpcServiceHandler rpcServiceHandler;
  42     private volatile SchemaContextHandler schemaContextHandler;
  43
  44     public RestconfInvokeOperationsServiceImpl(final RpcServiceHandler rpcServiceHandler,
  45             final SchemaContextHandler schemaContextHandler) {
  46         this.rpcServiceHandler = rpcServiceHandler;
  47         this.schemaContextHandler = schemaContextHandler;
  48     }
  49
  50     @Override
  51     public synchronized void updateHandlers(final Object... handlers) {
  52         for (final Object object : handlers) {
  53             if (object instanceof SchemaContextHandler) {
  54                 schemaContextHandler = (SchemaContextHandler) object;
  55             } else if (object instanceof RpcServiceHandler) {
  56                 rpcServiceHandler = (RpcServiceHandler) object;
  57             }
  58         }
  59     }
  60
  61     @Override
  62     public NormalizedNodeContext invokeRpc(final String identifier, final NormalizedNodeContext payload,
  63             final UriInfo uriInfo) {
  64         final EffectiveModelContext refSchemaCtx = this.schemaContextHandler.get();
  65         final SchemaPath schemaPath = payload.getInstanceIdentifierContext().getSchemaNode().getPath();
  66         final DOMMountPoint mountPoint = payload.getInstanceIdentifierContext().getMountPoint();
  67         final URI namespace = payload.getInstanceIdentifierContext().getSchemaNode().getQName().getNamespace();
  68
  69         final DOMRpcResult response;
  70         final EffectiveModelContext schemaContextRef;
  71         if (mountPoint == null) {
  72             if (namespace.equals(RestconfStreamsConstants.SAL_REMOTE_NAMESPACE.getNamespace())) {
  73                 if (identifier.contains(RestconfStreamsConstants.CREATE_DATA_SUBSCRIPTION)) {
  74                     response = CreateStreamUtil.createDataChangeNotifiStream(payload, refSchemaCtx);
  75                 } else {
  76                     throw new RestconfDocumentedException("Not supported operation", ErrorType.RPC,
  77                             ErrorTag.OPERATION_NOT_SUPPORTED);
  78                 }
  79             } else {
  80                 response = RestconfInvokeOperationsUtil.invokeRpc(payload.getData(), schemaPath,
  81                         this.rpcServiceHandler);
  82             }
  83             schemaContextRef = this.schemaContextHandler.get();
  84         } else {
  85             response = RestconfInvokeOperationsUtil.invokeRpcViaMountPoint(mountPoint, payload.getData(), schemaPath);
  86             schemaContextRef = mountPoint.getEffectiveModelContext();
  87         }
  88
  89         final DOMRpcResult result = RestconfInvokeOperationsUtil.checkResponse(response);
  90
  91         RpcDefinition resultNodeSchema = null;
  92         NormalizedNode<?, ?> resultData = null;
  93         if (result != null && result.getResult() != null) {
  94             resultData = result.getResult();
  95             resultNodeSchema = (RpcDefinition) payload.getInstanceIdentifierContext().getSchemaNode();
  96         }
  97
  98         if (resultData != null && ((ContainerNode) resultData).getValue().isEmpty()) {
  99             throw new WebApplicationException(Response.Status.NO_CONTENT);
 100         } else {
 101             return new NormalizedNodeContext(new InstanceIdentifierContext<>(null, resultNodeSchema, mountPoint,
 102                     schemaContextRef), resultData);
 103         }
 104     }
 105 }