1 files changed, 66 insertions, 0 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
new file mode 100644
index 0000000000..a7fe34071d
--- /dev/null
+++ b/catalog-dao/src/main/java/org/openecomp/sdc/be/dao/jsongraph/utils/JsonParserUtils.java
@@ -0,0 +1,66 @@
+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 org.openecomp.sdc.be.datatypes.tosca.ToscaDataDefinition;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class JsonParserUtils {
+	private static ObjectMapper mapper = new ObjectMapper();
+	private static Logger logger = LoggerFactory.getLogger(JsonParserUtils.class.getName());
+
+	
+	public static <T> String jsonToString(T elementToRepresent) throws IOException, JsonGenerationException, JsonMappingException {
+
+		
+		mapper.configure(Feature.FAIL_ON_EMPTY_BEANS, false);
+		mapper.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
+		return mapper.writeValueAsString(elementToRepresent);
+	}
+
+	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>>() {
+		};
+
+		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);
+
+		try {
+			object = mapper.readValue(json, type);
+		} catch (Exception e) {
+			logger.debug("Failed to parse json {}", json, e);
+		}
+		return object;
+	}
+}