| /* |
| * 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.server.core.serializer.json; |
| |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import org.apache.olingo.commons.api.Constants; |
| import org.apache.olingo.commons.api.ex.ODataError; |
| import org.apache.olingo.commons.api.ex.ODataErrorDetail; |
| import org.apache.olingo.server.api.serializer.SerializerException; |
| |
| import com.fasterxml.jackson.core.JsonGenerator; |
| |
| public class ODataErrorSerializer { |
| |
| public void writeErrorDocument(final JsonGenerator json, final ODataError error) |
| throws IOException, SerializerException { |
| if (error == null) { |
| throw new SerializerException("ODataError object MUST NOT be null!", |
| SerializerException.MessageKeys.NULL_INPUT); |
| } |
| json.writeStartObject(); |
| json.writeFieldName(Constants.JSON_ERROR); |
| |
| json.writeStartObject(); |
| writeODataError(json, error.getCode(), error.getMessage(), error.getTarget()); |
| writeODataAdditionalProperties(json, error.getAdditionalProperties()); |
| |
| if (error.getDetails() != null) { |
| json.writeArrayFieldStart(Constants.ERROR_DETAILS); |
| for (ODataErrorDetail detail : error.getDetails()) { |
| json.writeStartObject(); |
| writeODataError(json, detail.getCode(), detail.getMessage(), detail.getTarget()); |
| writeODataAdditionalProperties(json, detail.getAdditionalProperties()); |
| json.writeEndObject(); |
| } |
| json.writeEndArray(); |
| } |
| |
| json.writeEndObject(); |
| json.writeEndObject(); |
| } |
| |
| @SuppressWarnings("unchecked") |
| private void writeODataAdditionalProperties(JsonGenerator json, |
| Map<String, Object> additionalProperties) throws IOException { |
| if (additionalProperties != null) { |
| for (Entry<String, Object> additionalProperty : additionalProperties.entrySet()) { |
| Object value = additionalProperty.getValue(); |
| if (value instanceof List) { |
| List<Map<String, Object>> list = (List<Map<String, Object>>) value; |
| json.writeArrayFieldStart(additionalProperty.getKey()); |
| for (Map<String, Object> entry : list) { |
| json.writeStartObject(); |
| writeODataAdditionalProperties(json, entry); |
| json.writeEndObject(); |
| } |
| json.writeEndArray(); |
| } else if (value instanceof Map) { |
| writeODataAdditionalProperties(json, (Map<String, Object>) value); |
| } else { |
| json.writeObjectField(additionalProperty.getKey(), value); |
| } |
| } |
| } |
| } |
| |
| private void writeODataError(final JsonGenerator json, final String code, final String message, final String target) |
| throws IOException { |
| json.writeFieldName(Constants.ERROR_CODE); |
| if (code == null) { |
| json.writeNull(); |
| } else { |
| json.writeString(code); |
| } |
| |
| json.writeFieldName(Constants.ERROR_MESSAGE); |
| if (message == null) { |
| json.writeNull(); |
| } else { |
| json.writeString(message); |
| } |
| |
| if (target != null) { |
| json.writeStringField(Constants.ERROR_TARGET, target); |
| } |
| } |
| } |