| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.olingo.client.core.data; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.util.Iterator; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.olingo.client.api.data.ResWrap; |
| import org.apache.olingo.client.api.data.ServiceDocument; |
| import org.apache.olingo.client.api.serialization.ODataDeserializerException; |
| import org.apache.olingo.client.core.serialization.JsonDeserializer; |
| import org.apache.olingo.commons.api.Constants; |
| |
| import com.fasterxml.jackson.core.JsonFactory; |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| public class JSONServiceDocumentDeserializer extends JsonDeserializer { |
| |
| public JSONServiceDocumentDeserializer(final boolean serverMode) { |
| super(serverMode); |
| } |
| |
| protected ResWrap<ServiceDocument> doDeserialize(final JsonParser parser) throws IOException { |
| |
| final ObjectNode tree = parser.getCodec().readTree(parser); |
| |
| ServiceDocumentImpl serviceDocument = new ServiceDocumentImpl(); |
| |
| final String metadataETag; |
| if (tree.hasNonNull(Constants.JSON_METADATA_ETAG)) { |
| metadataETag = tree.get(Constants.JSON_METADATA_ETAG).textValue(); |
| tree.remove(Constants.JSON_METADATA_ETAG); |
| } else { |
| metadataETag = null; |
| } |
| |
| final URI contextURL; |
| if (tree.hasNonNull(Constants.JSON_CONTEXT)) { |
| contextURL = URI.create(tree.get(Constants.JSON_CONTEXT).textValue()); |
| tree.remove(Constants.JSON_CONTEXT); |
| } else if (tree.hasNonNull(Constants.JSON_METADATA)) { |
| contextURL = URI.create(tree.get(Constants.JSON_METADATA).textValue()); |
| tree.remove(Constants.JSON_METADATA); |
| } else { |
| contextURL = null; |
| } |
| |
| serviceDocument.setMetadata(contextURL == null ? null : contextURL.toASCIIString()); |
| |
| for (final Iterator<JsonNode> itor = tree.get(Constants.VALUE).elements(); itor.hasNext();) { |
| final JsonNode node = itor.next(); |
| |
| final ServiceDocumentItemImpl item = new ServiceDocumentItemImpl(); |
| item.setName(node.get("name").asText()); |
| JsonNode titleNode = node.get("title"); |
| if (titleNode != null) { |
| item.setTitle(titleNode.asText()); |
| } |
| item.setUrl(node.get("url").asText()); |
| |
| final String kind = node.has("kind") ? node.get("kind").asText() : null; |
| if (StringUtils.isBlank(kind) || "EntitySet".equals(kind)) { |
| serviceDocument.getEntitySets().add(item); |
| } else if ("Singleton".equals(kind)) { |
| serviceDocument.getSingletons().add(item); |
| } else if ("FunctionImport".equals(kind)) { |
| serviceDocument.getFunctionImports().add(item); |
| } else if ("ServiceDocument".equals(kind)) { |
| serviceDocument.getRelatedServiceDocuments().add(item); |
| } |
| } |
| |
| return new ResWrap<ServiceDocument>(contextURL, metadataETag, serviceDocument); |
| } |
| |
| public ResWrap<ServiceDocument> toServiceDocument(final InputStream input) throws ODataDeserializerException { |
| try { |
| JsonParser parser = new JsonFactory(new ObjectMapper()).createParser(input); |
| return doDeserialize(parser); |
| } catch (final IOException e) { |
| throw new ODataDeserializerException(e); |
| } |
| } |
| } |