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1   /*
2    * *************************************************************************************************************************************************************
3    *
4    * blueHour: open source accounting
5    * http://tidalwave.it/projects/bluehour
6    *
7    * Copyright (C) 2013 - 2024 by Tidalwave s.a.s. (http://tidalwave.it)
8    *
9    * *************************************************************************************************************************************************************
10   *
11   * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
12   * You may obtain a copy of the License at
13   *
14   *     http://www.apache.org/licenses/LICENSE-2.0
15   *
16   * 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
17   * CONDITIONS OF ANY KIND, either express or implied.  See the License for the specific language governing permissions and limitations under the License.
18   *
19   * *************************************************************************************************************************************************************
20   *
21   * git clone https://bitbucket.org/tidalwave/bluehour-src
22   * git clone https://github.com/tidalwave-it/bluehour-src
23   *
24   * *************************************************************************************************************************************************************
25   */
26  package it.tidalwave.accounting.role;
27  
28  import javax.annotation.Nonnull;
29  import java.io.IOException;
30  import java.nio.file.Files;
31  import java.nio.file.Path;
32  import it.tidalwave.accounting.model.Accounting;
33  import it.tidalwave.util.PreferencesHandler;
34  import it.tidalwave.dci.annotation.DciRole;
35  import lombok.RequiredArgsConstructor;
36  import lombok.extern.slf4j.Slf4j;
37  import static it.tidalwave.role.io.Marshallable._Marshallable_;
38  import static it.tidalwave.role.io.Unmarshallable._Unmarshallable_;
39  
40  /***************************************************************************************************************************************************************
41   *
42   * The implementation of {@link Loadable} and {@link Saveable} for {@link LoadableSaveableAccounting}.
43   * 
44   * @stereotype role
45   * 
46   * @author  Fabrizio Giudici
47   *
48   **************************************************************************************************************************************************************/
49  @RequiredArgsConstructor @DciRole(datumType = Accounting.class) @Slf4j
50  public class LoadableSaveableAccounting implements Loadable, Saveable
51    {
52      public static final String BLUEHOUR_FILE_NAME = "blueHour.xml";
53  
54      @Nonnull
55      private final Accounting accounting;
56      
57      @Nonnull
58      private final PreferencesHandler preferencesHandler;
59  
60      /***********************************************************************************************************************************************************
61       * {@inheritDoc} 
62       **********************************************************************************************************************************************************/
63      @Override
64      public Accounting load()
65        throws IOException 
66        {
67          final var dataFile = getDataFile();
68          log.info(">>>> loading data from {}...", dataFile);
69  
70          try (final var is = Files.newInputStream(dataFile))
71            {
72              return accounting.as(_Unmarshallable_).unmarshal(is);
73            }
74        }
75  
76      /***********************************************************************************************************************************************************
77       * {@inheritDoc} 
78       **********************************************************************************************************************************************************/
79      @Override
80      public void save() 
81        throws IOException 
82        {
83          final var dataFile = getDataFile();
84          log.info(">>>> saving data to {}...", dataFile);
85  
86          try (final var os = Files.newOutputStream(dataFile))
87            {
88              accounting.as(_Marshallable_).marshal(os);
89            }
90        }
91  
92      /***********************************************************************************************************************************************************
93       *  
94       **********************************************************************************************************************************************************/
95      @Nonnull
96      protected Path getDataFile() 
97        {
98          return preferencesHandler.getAppFolder().resolve(BLUEHOUR_FILE_NAME);
99        }
100   }