Merge "Fix for Sonar Blocker issues"
[dmaap/messagerouter/messageservice.git] / src / main / java / com / att / nsa / dmaap / filemonitor / ServicePropertiesMap.java
1 /*******************************************************************************
2  *  ============LICENSE_START=======================================================
3  *  org.onap.dmaap
4  *  ================================================================================
5  *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
6  *  ================================================================================
7  *  Licensed under the Apache License, Version 2.0 (the "License");
8  *  you may not use this file except in compliance with the License.
9  *  You may obtain a copy of the License at
10  *        http://www.apache.org/licenses/LICENSE-2.0
11  *  
12  *  Unless required by applicable law or agreed to in writing, software
13  *  distributed under the License is distributed on an "AS IS" BASIS,
14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  *  See the License for the specific language governing permissions and
16  *  limitations under the License.
17  *  ============LICENSE_END=========================================================
18  *
19  *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
20  *  
21  *******************************************************************************/
22 package com.att.nsa.dmaap.filemonitor;
23
24 import java.io.File;
25 import java.io.FileInputStream;
26 import java.util.HashMap;
27 import java.util.Map;
28 import java.util.Properties;
29
30 import com.att.eelf.configuration.EELFLogger;
31 import com.att.eelf.configuration.EELFManager;
32 import com.fasterxml.jackson.core.type.TypeReference;
33 import com.fasterxml.jackson.databind.ObjectMapper;
34
35 /**
36  * ServicePropertiesMap class
37  * @author author
38  *
39  */
40 @SuppressWarnings("squid:S1118") 
41 public class ServicePropertiesMap 
42 {
43         private static HashMap<String, HashMap<String, String>> mapOfMaps = 
44                         new HashMap<String, HashMap<String, String>>();
45 //      static final Logger logger = LoggerFactory.getLogger(ServicePropertiesMap.class);
46
47         private static final EELFLogger logger = EELFManager.getInstance().getLogger(ServicePropertiesMap.class);
48         /**
49          * refresh method
50          * @param file file
51          * @throws Exception ex
52          */
53         public static void refresh(File file) throws Exception
54         {
55                 String filePath= null;
56                 try
57                 {
58                         logger.info("Loading properties - " + (file != null?file.getName():""));
59                         
60                         //Store .json & .properties files into map of maps
61                         if (file != null) {
62                                 filePath = file.getPath();
63                         }
64                         
65                         if(filePath.lastIndexOf(".json")>0){
66                                 
67                                 ObjectMapper om = new ObjectMapper();
68                                 TypeReference<HashMap<String, String>> typeRef = 
69                                                 new TypeReference<HashMap<String, String>>() {};
70                                 HashMap<String, String> propMap = om.readValue(file, typeRef);
71                                 HashMap<String, String> lcasePropMap = new HashMap<>();
72                                 for (Map.Entry<String,String> entry : propMap.entrySet())
73                                 {
74                                         String key = entry.getKey();
75                                         String lcaseKey = ifNullThenEmpty(key);
76                                         lcasePropMap.put(lcaseKey, propMap.get(key));
77                                 }
78                                 
79                                 mapOfMaps.put(file.getName(), lcasePropMap);
80                                 
81                                 
82                         }else if(filePath.lastIndexOf(".properties")>0){
83                                 Properties prop = new Properties();
84                                 FileInputStream fis = new FileInputStream(file);
85                                 prop.load(fis);
86                                 
87                                 @SuppressWarnings("unchecked")
88                                 HashMap<String, String> propMap = new HashMap<>((Map)prop);
89                                 
90                                 mapOfMaps.put(file.getName(), propMap);
91                         }
92
93                         logger.info("File - " + file.getName() + " is loaded into the map and the "
94                                         + "corresponding system properties have been refreshed");
95                 }
96                 catch (Exception e)
97                 {
98                         logger.error("File " + (file != null?file.getName():"") + " cannot be loaded into the map ", e);
99                         throw new Exception("Error reading map file " + (file != null?file.getName():""), e);
100                 }
101         }
102         /**
103          * Get property
104          * @param fileName fileName
105          * @param propertyKey propertyKey
106          * @return str
107          */
108         public static String getProperty(String fileName, String propertyKey)
109         {
110                 HashMap<String, String> propMap = mapOfMaps.get(fileName);
111                 return propMap!=null?propMap.get(ifNullThenEmpty(propertyKey)):"";
112         }
113         /**
114          * get properties
115          * @param fileName fileName
116          * @return mapProp
117          */
118         public static Map<String, String> getProperties(String fileName){
119                 return mapOfMaps.get(fileName);
120         }
121         
122         private static String ifNullThenEmpty(String key) {
123                 if (key == null) {
124                         return "";
125                 } else {                                        
126                         return key;
127                 }               
128         }
129
130 }