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1   /*
2    * Copyright (c) 2002-2022, City of Paris
3    * All rights reserved.
4    *
5    * Redistribution and use in source and binary forms, with or without
6    * modification, are permitted provided that the following conditions
7    * are met:
8    *
9    *  1. Redistributions of source code must retain the above copyright notice
10   *     and the following disclaimer.
11   *
12   *  2. Redistributions in binary form must reproduce the above copyright notice
13   *     and the following disclaimer in the documentation and/or other materials
14   *     provided with the distribution.
15   *
16   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17   *     contributors may be used to endorse or promote products derived from
18   *     this software without specific prior written permission.
19   *
20   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30   * POSSIBILITY OF SUCH DAMAGE.
31   *
32   * License 1.0
33   */
34  package fr.paris.lutece.portal.service.util;
35  
36  import java.util.ArrayList;
37  import java.util.HashMap;
38  import java.util.List;
39  import java.util.Map;
40  import java.util.Optional;
41  import java.util.Properties;
42  import java.util.stream.Collectors;
43  import java.util.stream.StreamSupport;
44  
45  import org.eclipse.microprofile.config.Config;
46  import org.eclipse.microprofile.config.ConfigProvider;
47  import org.eclipse.microprofile.config.spi.ConfigSource;
48  
49  import fr.paris.lutece.util.AppInitPropertiesService;
50  
51  /**
52   * this class provides management services for properties files
53   */
54  public final class AppPropertiesService
55  {
56     
57  	private static Config _config;
58      /**
59       * Private constructor
60       */
61      private AppPropertiesService( )
62      {
63      }
64  
65      /**
66       * Initializes the service
67       * 
68       * @param strConfPath
69       *            The configuration path
70       */
71      public static void init( String strConfPath )
72      {
73      	AppInitPropertiesService.init(strConfPath);
74      	
75  		try {
76  			_config= ConfigProvider.getConfig();
77  			
78  		} catch (Exception e) {
79  			AppLogService.error(e.getMessage( ), e);
80  			throw e;
81  		}	
82  		
83      }
84  
85      /**
86       * Returns the value of a variable defined in the .properties file of the application as a String
87       *
88       * @param strProperty
89       *            The variable name
90       * @return The variable value read in the properties file
91       */
92      public static String getProperty( String strProperty )
93      {
94      	return _config.getOptionalValue(strProperty, String.class).orElse(null);
95      }
96  
97      /**
98       * Returns the value of a variable defined in the .properties file of the application as a String
99       *
100      * @param strProperty
101      *            The variable name
102      * @param strDefault
103      *            The default value which is returned if no value is found for the variable in the .properties file.
104      * @return The variable value read in the properties file
105      */
106     public static String getProperty( String strProperty, String strDefault )
107     {
108     	return _config.getOptionalValue(strProperty, String.class).orElse( strDefault );
109     }
110 
111     /**
112      * Returns the value of a variable defined in the .properties file of the application as an int
113      *
114      * @param strProperty
115      *            The variable name
116      * @param nDefault
117      *            The default value which is returned if no value is found for the variable in the le downloadFile .properties. .properties file.
118      * @return The variable value read in the properties file
119      */
120     public static int getPropertyInt( String strProperty, int nDefault )
121     {
122         return _config.getOptionalValue(strProperty, Integer.class).orElse( nDefault );
123     }
124 
125     /**
126      * Returns the value of a variable defined in the .properties file of the application as an long
127      *
128      * @param strProperty
129      *            The variable name
130      * @param lDefault
131      *            The default value which is returned if no value is found for the variable in the le downloadFile .properties. .properties file.
132      * @return The variable value read in the properties file
133      */
134     public static long getPropertyLong( String strProperty, long lDefault )
135     {
136         return _config.getOptionalValue(strProperty, Long.class).orElse( lDefault );
137     }
138 
139     /**
140      * Returns the value of a variable defined in the .properties file of the application as a boolean
141      *
142      * @param strProperty
143      *            The variable name
144      * @param bDefault
145      *            The default value which is returned if no value is found for the variable in the le downloadFile .properties. .properties file.
146      * @return The variable value read in the properties file
147      */
148     public static boolean getPropertyBoolean( String strProperty, boolean bDefault )
149     {
150         return _config.getOptionalValue(strProperty, Boolean.class).orElse( bDefault );
151     }
152 
153     /**
154      * Return the resolved property value with the specified type for the specified property name from the underlying
155      * {@linkplain ConfigSource configuration sources}.
156      * <p>
157      * The configuration value is not guaranteed to be cached by the implementation, and may be expensive to compute;
158      * therefore, if the returned value is intended to be frequently used, callers should consider storing rather than
159      * recomputing it.
160      * <p>
161      * If this method is used very often then consider to locally store the configured value.
162      *
163      * @param <T>
164      *            The property type
165      * @param propertyName
166      *            The configuration property name
167      * @param propertyType
168      *            The type into which the resolved property value should be converted
169      * @return The resolved property value as an {@code Optional} wrapping the requested type
170      *
171      * @throws IllegalArgumentException
172      *             if the property cannot be converted to the specified type
173      */
174     public <T> Optional<T> getOptionalValue(String name, Class<T> aClass) 
175     {
176     	return _config.getOptionalValue(name, aClass );
177     }
178     /**
179      * Reloads all the properties files
180      */
181     @Deprecated
182     public static void reloadAll( )
183     {
184     	AppInitPropertiesService.reloadAll( );
185     }
186 
187     /**
188      * Reloads a given properties file
189      * 
190      * @param strFilename
191      *            The file name
192      */
193     @Deprecated
194     public static void reload( String strFilename )
195     {
196     	AppInitPropertiesService.reload( strFilename );
197     }
198 
199     /**
200      * Gets properties
201      * 
202      * @return All properties
203      * @since version 3.0
204      */
205     public static Properties getProperties( )
206     {
207     	Properties properties = new Properties( );
208     	_config.getPropertyNames().forEach(x-> properties.put(x, _config.getOptionalValue(x, String.class).orElse("")));
209 
210     	return properties;
211     	
212     }
213 
214     /**
215      * Gets all properties as a Map
216      * 
217      * @return a Map of all properties
218      * @since version 5.0
219      */
220     public static Map<String, String> getPropertiesAsMap( )
221     {
222     	
223          Map<String,String> mapProperties=new HashMap<String, String>();	
224          _config.getPropertyNames().forEach(x-> mapProperties.put(x, _config.getOptionalValue(x, String.class).orElse("")));
225 
226     	
227        return mapProperties;
228     }
229 
230     /**
231      * Returns a list of keys that match a given prefix.
232      *
233      * @param strPrefix
234      *            the str prefix
235      * @return A list of keys that match the prefix
236      * @since version 3.0
237      */
238     public static List<String> getKeys( String strPrefix )
239     {
240         return StreamSupport.stream(_config.getPropertyNames().spliterator(), false).filter(key -> key.startsWith(strPrefix)).collect(Collectors.toList());
241     }
242 }