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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.init;
35  
36  import fr.paris.lutece.portal.service.spring.SpringContextService;
37  import fr.paris.lutece.portal.service.util.AppLogService;
38  
39  import java.util.ArrayList;
40  import java.util.Comparator;
41  import java.util.List;
42  import java.util.ServiceLoader;
43  
44  /**
45   * StartUpServiceManager
46   */
47  public final class StartUpServiceManager
48  {
49      /**
50       * Private constructor
51       */
52      private StartUpServiceManager( )
53      {
54      }
55      /**
56       * Initializes early initialization services.
57       * <p>
58       * This method loads and processes services implementing the {@link IEarlyInitializationService} interface
59       * before starting the Spring context.
60       * </p>
61       */
62      public static void initializeEarlyInitializationServices() {
63          List<IEarlyInitializationService> serviceList = new ArrayList<>();
64  
65          // Load early initialization services using ServiceLoader
66          ServiceLoader<IEarlyInitializationService> providers = ServiceLoader.load(IEarlyInitializationService.class);
67          providers.forEach(serviceList::add);
68  
69          // Sort services by order before processing
70          serviceList.stream()
71                  .sorted(Comparator.comparingInt(IEarlyInitializationService::getOrder))
72                  .forEach(service -> {
73                      String serviceName = service.getClass().getName();
74                      try {
75                          // Display an informational message before processing the service
76                          AppLogService.info("Processing StartUp service: {} before starting Spring Context", serviceName);
77                          // Call the service processing method
78                          service.process();
79                          // Display a success message after processing the service
80                          AppLogService.info("StartUp service processed successfully: {}", serviceName);
81                      } catch (Exception e) {
82                          // In case of error, display an error message and log the exception
83                          AppLogService.error("Error while processing StartUp service: {}", serviceName, e);
84                      }
85                  });
86      }
87      /**
88       * Runs all StartUp Services
89       */
90      public static void init( )
91      {
92          // Get all beans from the global ApplicationContext
93          List<StartUpService> listServices = SpringContextService.getBeansOfType( StartUpService.class );
94  
95          // Process all services
96          for ( StartUpService service : listServices )
97          {
98              try
99              {
100                 AppLogService.info( "Processing StartUp service : {}", service.getName( ) );
101                 service.process( );
102             }
103             catch( Exception e )
104             {
105                 AppLogService.error( "Error while processing StartUp service : {}", service.getName( ), e );
106             }
107         }
108     }
109 }