diff options
Diffstat (limited to 'catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java')
-rw-r--r-- | catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java | 116 |
1 files changed, 61 insertions, 55 deletions
diff --git a/catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java b/catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java index da3d6530e4..b2530e8e8a 100644 --- a/catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java +++ b/catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java @@ -7,9 +7,9 @@ * Licensed 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. @@ -20,67 +20,73 @@ package org.openecomp.sdc.be.dao.jsongraph.utils; -import java.io.IOException; -import java.util.Map; - -import org.codehaus.jackson.JsonGenerationException; -import org.codehaus.jackson.map.DeserializationConfig; -import org.codehaus.jackson.map.JsonMappingException; -import org.codehaus.jackson.map.ObjectMapper; -import org.codehaus.jackson.map.SerializationConfig.Feature; -import org.codehaus.jackson.map.annotate.JsonSerialize; -import org.codehaus.jackson.type.JavaType; -import org.codehaus.jackson.type.TypeReference; +import com.fasterxml.jackson.annotation.JsonInclude; +import com.fasterxml.jackson.core.type.TypeReference; +import com.fasterxml.jackson.databind.DeserializationFeature; +import com.fasterxml.jackson.databind.JavaType; +import com.fasterxml.jackson.databind.ObjectMapper; +import com.fasterxml.jackson.databind.SerializationFeature; +import com.google.common.base.Strings; import org.openecomp.sdc.be.datatypes.tosca.ToscaDataDefinition; import org.slf4j.Logger; import org.slf4j.LoggerFactory; +import java.io.IOException; +import java.util.Map; + public class JsonParserUtils { - private static ObjectMapper mapper = new ObjectMapper(); - private static Logger logger = LoggerFactory.getLogger(JsonParserUtils.class.getName()); + private static final Logger log = LoggerFactory.getLogger(JsonParserUtils.class.getName()); + private static final ObjectMapper mapper = buildObjectMapper(); + + private JsonParserUtils() { + // No instances allowed + } + + private static ObjectMapper buildObjectMapper() { + return new ObjectMapper() + .disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES) + .disable(SerializationFeature.FAIL_ON_EMPTY_BEANS) + .setSerializationInclusion(JsonInclude.Include.NON_NULL); + } - - public static <T> String jsonToString(T elementToRepresent) throws IOException, JsonGenerationException, JsonMappingException { + public static <T> String toJson(T object) throws IOException { + return mapper.writer() + .writeValueAsString(object); + } - - mapper.configure(Feature.FAIL_ON_EMPTY_BEANS, false); - mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL); - return mapper.writeValueAsString(elementToRepresent); - } + public static Map<String, Object> toMap(String json) { + if (Strings.isNullOrEmpty(json)) { + return null; + } - public static Map<String, Object> parseToJson(String json) { - Map<String, Object> object = null; - if (json == null || json.isEmpty()) { - return null; - } - mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false); - mapper.configure(Feature.FAIL_ON_EMPTY_BEANS, false); - mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL); - TypeReference<Map<String, Object>> typeRef = new TypeReference<Map<String, Object>>() { - }; + Map<String, Object> object = null; + try { + TypeReference<Map<String, Object>> typeRef = new TypeReference<Map<String, Object>>() { + }; + object = mapper.readerFor(typeRef) + .readValue(json); + } + catch (Exception e) { + log.debug("Failed to parse json {}", json, e); + } + return object; + } - try { - object = mapper.readValue(json, typeRef); - } catch (Exception e) { - logger.debug("Failed to parse json {}", json, e); - } - return object; - } - public static <T extends ToscaDataDefinition> Map<String, T> parseToJson(String json, Class <T> clazz) { - Map<String, T> object = null; - if (json == null || json.isEmpty()) { - return null; - } - mapper.configure(DeserializationConfig.Feature.FAIL_ON_UNKNOWN_PROPERTIES, false); - mapper.configure(Feature.FAIL_ON_EMPTY_BEANS, false); - mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL); - JavaType type = mapper.getTypeFactory().constructMapType(Map.class, String.class, clazz); + public static <T extends ToscaDataDefinition> Map<String, T> toMap(String json, Class<T> clazz) { + if (Strings.isNullOrEmpty(json)) { + return null; + } - try { - object = mapper.readValue(json, type); - } catch (Exception e) { - logger.debug("Failed to parse json {}", json, e); - } - return object; - } + Map<String, T> object = null; + try { + JavaType type = mapper.getTypeFactory() + .constructMapType(Map.class, String.class, clazz); + object = mapper.readerFor(type) + .readValue(json); + } + catch (Exception e) { + log.debug("Failed to parse json {}", json, e); + } + return object; + } } |