| /* |
| * 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.serialization; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.regex.Matcher; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.olingo.client.api.data.ResWrap; |
| import org.apache.olingo.commons.api.Constants; |
| import org.apache.olingo.commons.api.data.Annotation; |
| import org.apache.olingo.commons.api.data.Entity; |
| import org.apache.olingo.commons.api.data.Link; |
| import org.apache.olingo.commons.api.data.Operation; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; |
| import org.apache.olingo.commons.core.edm.EdmTypeInfo; |
| |
| import com.fasterxml.jackson.core.JsonParseException; |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| /** |
| * Reads JSON string into an entity. |
| * <br/> |
| * If metadata information is available, the corresponding entity fields and content will be populated. |
| */ |
| public class JsonEntityDeserializer extends JsonDeserializer { |
| |
| public JsonEntityDeserializer(final boolean serverMode) { |
| super(serverMode); |
| } |
| |
| protected ResWrap<Entity> doDeserialize(final JsonParser parser) throws IOException { |
| |
| final ObjectNode tree = parser.getCodec().readTree(parser); |
| |
| if (tree.has(Constants.VALUE) && tree.get(Constants.VALUE).isArray()) { |
| throw new JsonParseException("Expected OData Entity, found EntitySet", parser.getCurrentLocation()); |
| } |
| |
| final Entity entity = new Entity(); |
| |
| 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; |
| } |
| if (contextURL != null) { |
| entity.setBaseURI(URI.create(StringUtils.substringBefore(contextURL.toASCIIString(), Constants.METADATA))); |
| } |
| |
| 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; |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_ETAG)) { |
| entity.setETag(tree.get(Constants.JSON_ETAG).textValue()); |
| tree.remove(Constants.JSON_ETAG); |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_TYPE)) { |
| entity.setType(new EdmTypeInfo.Builder().setTypeExpression(tree.get(Constants.JSON_TYPE).textValue()).build() |
| .internal()); |
| tree.remove(Constants.JSON_TYPE); |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_ID)) { |
| entity.setId(URI.create(tree.get(Constants.JSON_ID).textValue())); |
| tree.remove(Constants.JSON_ID); |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_READ_LINK)) { |
| final Link link = new Link(); |
| link.setRel(Constants.SELF_LINK_REL); |
| link.setHref(tree.get(Constants.JSON_READ_LINK).textValue()); |
| entity.setSelfLink(link); |
| |
| tree.remove(Constants.JSON_READ_LINK); |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_EDIT_LINK)) { |
| final Link link = new Link(); |
| if (serverMode) { |
| link.setRel(Constants.EDIT_LINK_REL); |
| } |
| link.setHref(tree.get(Constants.JSON_EDIT_LINK).textValue()); |
| entity.setEditLink(link); |
| |
| tree.remove(Constants.JSON_EDIT_LINK); |
| } |
| |
| if (tree.hasNonNull(Constants.JSON_MEDIA_READ_LINK)) { |
| entity.setMediaContentSource(URI.create(tree.get(Constants.JSON_MEDIA_READ_LINK).textValue())); |
| tree.remove(Constants.JSON_MEDIA_READ_LINK); |
| } |
| if (tree.hasNonNull(Constants.JSON_MEDIA_EDIT_LINK)) { |
| entity.setMediaContentSource(URI.create(tree.get(Constants.JSON_MEDIA_EDIT_LINK).textValue())); |
| tree.remove(Constants.JSON_MEDIA_EDIT_LINK); |
| } |
| if (tree.hasNonNull(Constants.JSON_MEDIA_CONTENT_TYPE)) { |
| entity.setMediaContentType(tree.get(Constants.JSON_MEDIA_CONTENT_TYPE).textValue()); |
| tree.remove(Constants.JSON_MEDIA_CONTENT_TYPE); |
| } |
| if (tree.hasNonNull(Constants.JSON_MEDIA_ETAG)) { |
| entity.setMediaETag(tree.get(Constants.JSON_MEDIA_ETAG).textValue()); |
| tree.remove(Constants.JSON_MEDIA_ETAG); |
| } |
| |
| final Set<String> toRemove = new HashSet<String>(); |
| |
| final Map<String, List<Annotation>> annotations = new HashMap<String, List<Annotation>>(); |
| for (final Iterator<Map.Entry<String, JsonNode>> itor = tree.fields(); itor.hasNext();) { |
| final Map.Entry<String, JsonNode> field = itor.next(); |
| final Matcher customAnnotation = CUSTOM_ANNOTATION.matcher(field.getKey()); |
| |
| links(field, entity, toRemove, tree, parser.getCodec()); |
| if (field.getKey().endsWith(getJSONAnnotation(Constants.JSON_MEDIA_READ_LINK))) { |
| final Link link = new Link(); |
| link.setTitle(getTitle(field)); |
| link.setRel(Constants.NS_MEDIA_READ_LINK_REL + getTitle(field)); |
| link.setType(Constants.MEDIA_EDIT_LINK_TYPE); |
| link.setHref(field.getValue().textValue()); |
| entity.getMediaEditLinks().add(link); |
| |
| if (tree.has(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_ETAG))) { |
| link.setMediaETag(tree.get(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_ETAG)).asText()); |
| toRemove.add(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_ETAG)); |
| } |
| |
| if (tree.has(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_CONTENT_TYPE))) { |
| link.setType(tree.get(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_CONTENT_TYPE)).asText()); |
| toRemove.add(link.getTitle() + getJSONAnnotation(Constants.JSON_MEDIA_CONTENT_TYPE)); |
| } |
| |
| toRemove.add(field.getKey()); |
| toRemove.add(setInline(field.getKey(), getJSONAnnotation(Constants.JSON_MEDIA_READ_LINK), tree, parser |
| .getCodec(), link)); |
| } else if (field.getKey().endsWith(getJSONAnnotation(Constants.JSON_MEDIA_EDIT_LINK))) { |
| final Link link = getOrCreateMediaLink(entity, getTitle(field)); |
| link.setRel(Constants.NS_MEDIA_EDIT_LINK_REL + getTitle(field)); |
| link.setHref(field.getValue().textValue()); |
| toRemove.add(field.getKey()); |
| toRemove.add(setInline(field.getKey(), getJSONAnnotation(Constants.JSON_MEDIA_EDIT_LINK), tree, parser |
| .getCodec(), link)); |
| } else if (field.getKey().endsWith(getJSONAnnotation(Constants.JSON_MEDIA_CONTENT_TYPE))) { |
| final Link link = getOrCreateMediaLink(entity, getTitle(field)); |
| link.setType(field.getValue().asText()); |
| toRemove.add(field.getKey()); |
| } else if (field.getKey().endsWith(getJSONAnnotation(Constants.JSON_MEDIA_ETAG))) { |
| final Link link = getOrCreateMediaLink(entity, getTitle(field)); |
| link.setMediaETag(field.getValue().asText()); |
| toRemove.add(field.getKey()); |
| } else if (field.getKey().charAt(0) == '#') { |
| final Operation operation = new Operation(); |
| operation.setMetadataAnchor(field.getKey()); |
| |
| final ObjectNode opNode = (ObjectNode) tree.get(field.getKey()); |
| operation.setTitle(opNode.get(Constants.ATTR_TITLE).asText()); |
| operation.setTarget(URI.create(opNode.get(Constants.ATTR_TARGET).asText())); |
| |
| entity.getOperations().add(operation); |
| |
| toRemove.add(field.getKey()); |
| } else if (customAnnotation.matches() && !"odata".equals(customAnnotation.group(2))) { |
| final Annotation annotation = new Annotation(); |
| annotation.setTerm(customAnnotation.group(2) + "." + customAnnotation.group(3)); |
| try { |
| value(annotation, field.getValue(), parser.getCodec()); |
| } catch (final EdmPrimitiveTypeException e) { |
| throw new IOException(e); |
| } |
| |
| if (!annotations.containsKey(customAnnotation.group(1))) { |
| annotations.put(customAnnotation.group(1), new ArrayList<Annotation>()); |
| } |
| annotations.get(customAnnotation.group(1)).add(annotation); |
| } |
| } |
| |
| for (Link link : entity.getNavigationLinks()) { |
| if (annotations.containsKey(link.getTitle())) { |
| link.getAnnotations().addAll(annotations.get(link.getTitle())); |
| for (Annotation annotation : annotations.get(link.getTitle())) { |
| toRemove.add(link.getTitle() + "@" + annotation.getTerm()); |
| } |
| } |
| } |
| for (Link link : entity.getMediaEditLinks()) { |
| if (annotations.containsKey(link.getTitle())) { |
| link.getAnnotations().addAll(annotations.get(link.getTitle())); |
| for (Annotation annotation : annotations.get(link.getTitle())) { |
| toRemove.add(link.getTitle() + "@" + annotation.getTerm()); |
| } |
| } |
| } |
| |
| tree.remove(toRemove); |
| |
| try { |
| populate(entity, entity.getProperties(), tree, parser.getCodec()); |
| } catch (final EdmPrimitiveTypeException e) { |
| throw new IOException(e); |
| } |
| |
| return new ResWrap<Entity>(contextURL, metadataETag, entity); |
| } |
| |
| private Link getOrCreateMediaLink(final Entity entity, final String name) { |
| final String rel = Constants.NS_MEDIA_EDIT_LINK_REL + name; |
| for (Link link : entity.getMediaEditLinks()) { |
| if (link.getRel().equals(rel)) { |
| return link; |
| } |
| } |
| final Link link = new Link(); |
| link.setTitle(name); |
| link.setRel(rel); |
| link.setType(Constants.MEDIA_EDIT_LINK_TYPE); |
| entity.getMediaEditLinks().add(link); |
| return link; |
| } |
| } |
