| /* |
| * 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.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| |
| 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.Operation; |
| import org.apache.olingo.commons.api.data.Property; |
| import org.apache.olingo.commons.api.data.ValueType; |
| import org.apache.olingo.commons.api.edm.EdmPrimitiveTypeException; |
| import org.apache.olingo.commons.core.edm.EdmTypeInfo; |
| |
| import com.fasterxml.jackson.core.JsonParser; |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.node.ObjectNode; |
| |
| /** |
| * Parse JSON string into <tt>Property</tt>. |
| */ |
| public class JsonPropertyDeserializer extends JsonDeserializer { |
| |
| public JsonPropertyDeserializer(final boolean serverMode) { |
| super(serverMode); |
| } |
| |
| protected ResWrap<Property> doDeserialize(final JsonParser parser) throws IOException { |
| |
| final ObjectNode tree = parser.getCodec().readTree(parser); |
| |
| final String metadataETag; |
| final URI contextURL; |
| final Property property = new Property(); |
| |
| 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_CONTEXT)) { |
| contextURL = URI.create(tree.get(Constants.JSON_CONTEXT).textValue()); |
| property.setName(StringUtils.substringAfterLast(contextURL.toASCIIString(), "/")); |
| tree.remove(Constants.JSON_CONTEXT); |
| } else if (tree.hasNonNull(Constants.JSON_METADATA)) { |
| contextURL = URI.create(tree.get(Constants.JSON_METADATA).textValue()); |
| property.setType(new EdmTypeInfo.Builder(). |
| setTypeExpression(StringUtils.substringAfterLast(contextURL.toASCIIString(), "#")).build().internal()); |
| tree.remove(Constants.JSON_METADATA); |
| } else { |
| contextURL = null; |
| } |
| |
| if (tree.has(Constants.JSON_TYPE)) { |
| property.setType(new EdmTypeInfo.Builder().setTypeExpression(tree.get(Constants.JSON_TYPE).textValue()).build() |
| .internal()); |
| tree.remove(Constants.JSON_TYPE); |
| } |
| |
| if (tree.has(Constants.JSON_NULL) && tree.get(Constants.JSON_NULL).asBoolean()) { |
| property.setValue(ValueType.PRIMITIVE, null); |
| tree.remove(Constants.JSON_NULL); |
| } |
| |
| if (property.getValue() == null) { |
| try { |
| value(property, tree.has(Constants.VALUE) ? tree.get(Constants.VALUE) : tree, parser.getCodec()); |
| } catch (final EdmPrimitiveTypeException e) { |
| throw new IOException(e); |
| } |
| tree.remove(Constants.VALUE); |
| } |
| |
| Set<String> toRemove = new HashSet<String>(); |
| // any remaining entry is supposed to be an annotation or is ignored |
| for (final Iterator<Map.Entry<String, JsonNode>> itor = tree.fields(); itor.hasNext();) { |
| final Map.Entry<String, JsonNode> field = itor.next(); |
| if (field.getKey().charAt(0) == '@') { |
| final Annotation annotation = new Annotation(); |
| annotation.setTerm(field.getKey().substring(1)); |
| |
| try { |
| value(annotation, field.getValue(), parser.getCodec()); |
| } catch (final EdmPrimitiveTypeException e) { |
| throw new IOException(e); |
| } |
| property.getAnnotations().add(annotation); |
| } 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())); |
| property.getOperations().add(operation); |
| toRemove.add(field.getKey()); |
| } |
| } |
| tree.remove(toRemove); |
| return new ResWrap<Property>(contextURL, metadataETag, property); |
| } |
| } |