| /* |
| * 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.ranger.common; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.Serializable; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.ranger.common.view.ViewBaseBean; |
| import org.codehaus.jackson.JsonGenerationException; |
| import org.codehaus.jackson.JsonParseException; |
| import org.codehaus.jackson.map.JsonMappingException; |
| import org.codehaus.jackson.map.ObjectMapper; |
| import org.codehaus.jackson.type.TypeReference; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.stereotype.Component; |
| |
| @Component |
| public class JSONUtil { |
| |
| @Autowired |
| RESTErrorUtil restErrorUtil; |
| |
| public File writeJsonToFile(ViewBaseBean viewBean, String fileName) |
| throws JsonGenerationException, JsonMappingException, IOException { |
| ObjectMapper objectMapper = new ObjectMapper(); |
| |
| if (fileName.length() < 3) { |
| fileName = "file_" + fileName; |
| } |
| |
| File file = File.createTempFile(fileName, ".json"); |
| objectMapper.defaultPrettyPrintingWriter().writeValue(file, viewBean); |
| |
| return file; |
| } |
| |
| public Map<String, String> jsonToMap(String jsonStr) { |
| if (jsonStr == null || jsonStr.isEmpty()) { |
| return new HashMap<String, String>(); |
| } |
| |
| ObjectMapper mapper = new ObjectMapper(); |
| try { |
| Map<String, String> tempObject = mapper.readValue(jsonStr, |
| new TypeReference<Map<String, String>>() { |
| }); |
| return tempObject; |
| |
| } catch (JsonParseException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (JsonMappingException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (IOException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } |
| |
| } |
| |
| public String readMapToString(Map<?, ?> map) { |
| ObjectMapper mapper = new ObjectMapper(); |
| String jsonString = null; |
| try { |
| jsonString = mapper.writeValueAsString(map); |
| } catch (JsonParseException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (JsonMappingException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (IOException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } |
| return jsonString; |
| } |
| |
| public String readListToString(List<?> list) { |
| ObjectMapper mapper = new ObjectMapper(); |
| String jsonString = null; |
| try { |
| jsonString = mapper.writeValueAsString(list); |
| } catch (JsonParseException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (JsonMappingException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (IOException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } |
| return jsonString; |
| } |
| |
| public String writeObjectAsString(Serializable obj) { |
| ObjectMapper mapper = new ObjectMapper(); |
| |
| String jsonStr; |
| try { |
| jsonStr = mapper.writeValueAsString(obj); |
| return jsonStr; |
| } catch (JsonParseException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (JsonMappingException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (IOException e) { |
| throw restErrorUtil.createRESTException( |
| "Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } |
| } |
| |
| public <T> T writeJsonToJavaObject(String json, Class<T> tClass) { |
| ObjectMapper mapper = new ObjectMapper(); |
| |
| try { |
| return mapper.readValue(json, tClass); |
| } catch (JsonParseException e) { |
| throw restErrorUtil.createRESTException("Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (JsonMappingException e) { |
| throw restErrorUtil.createRESTException("Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } catch (IOException e) { |
| throw restErrorUtil.createRESTException("Invalid input data: " + e.getMessage(), |
| MessageEnums.INVALID_INPUT_DATA); |
| } |
| } |
| |
| } |