1 /*
2 * Copyright (c) 2002-2018, Mairie de 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.plugins.stock.modules.recommendation.service;
35
36 import fr.paris.lutece.portal.service.util.AppLogService;
37 import java.io.BufferedWriter;
38 import java.io.File;
39 import java.io.FileWriter;
40 import java.io.IOException;
41 import java.io.Writer;
42
43 /**
44 * FilePurchaseDataWriter
45 */
46 public class FilePurchaseDataWriter implements PurchaseDataWriter
47 {
48 private Writer _output;
49 private File _file;
50
51 /**
52 * Constructor
53 *
54 * @param file
55 * The data file
56 */
57 public FilePurchaseDataWriter( File file )
58 {
59 _file = file;
60 }
61
62 /**
63 * {@inheritDoc }
64 */
65 @Override
66 public void reset( )
67 {
68 try
69 {
70 _output = new BufferedWriter( new FileWriter( _file ) ); // clears file every time
71 }
72 catch( IOException ex )
73 {
74 AppLogService.error( "stock-recommendation - Error openening data output : " + ex.getMessage( ), ex );
75 }
76 }
77
78 /**
79 * {@inheritDoc }
80 */
81 @Override
82 public void write( long lUserID, int nItemID )
83 {
84 try
85 {
86 _output.append( String.valueOf( lUserID ) ).append( ',' ).append( String.valueOf( nItemID ) ).append( ",1\n" );
87 }
88 catch( IOException ex )
89 {
90 AppLogService.error( "stock-recommendation - Error writing data output : " + ex.getMessage( ), ex );
91 }
92 }
93
94 /**
95 * {@inheritDoc }
96 */
97 @Override
98 public void close( )
99 {
100 try
101 {
102 _output.close( );
103 }
104 catch( IOException ex )
105 {
106 AppLogService.error( "stock-recommendation - Error closing data output : " + ex.getMessage( ), ex );
107 }
108 }
109
110 }