1 /*
2 * Copyright (c) 2002-2017, 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.search.solr.nutch.business;
35
36 import fr.paris.lutece.portal.service.util.AppLogService;
37 import fr.paris.lutece.portal.service.util.AppPropertiesService;
38
39 import org.apache.solr.client.solrj.SolrServer;
40 import org.apache.solr.client.solrj.impl.CommonsHttpSolrServer;
41
42 import java.net.MalformedURLException;
43
44
45 /**
46 * This service provides an instance of SolrServer.
47 *
48 */
49 public final class NutchServerService
50 {
51 private static final String PROPERTY_SOLR_SERVER_URL = "solr.nutch.server.address";
52 private static final String SOLR_SERVER_URL = AppPropertiesService.getProperty( PROPERTY_SOLR_SERVER_URL );
53 private static NutchServerService _instance;
54 private SolrServer _solrServer;
55
56 /**
57 * Private constructor that creates the SolrServer.
58 */
59 private NutchServerService( )
60 {
61 _solrServer = createSolrServer( SOLR_SERVER_URL );
62 }
63
64 /**
65 * Return the instance.
66 * @return the instance.
67 */
68 public static NutchServerService getInstance( )
69 {
70 if ( _instance == null )
71 {
72 _instance = new NutchServerService( );
73 }
74
75 return _instance;
76 }
77
78 /**
79 * Returns the SolrServer.
80 * @return the SolrServer
81 */
82 public SolrServer getSolrServer( )
83 {
84 return _solrServer;
85 }
86
87 /**
88 * Creates the SolrServer.
89 * @param strServerUrl the server url
90 * @return the SolrServer.
91 */
92 private SolrServer createSolrServer( String strServerUrl )
93 {
94 try
95 {
96 return new CommonsHttpSolrServer( strServerUrl );
97 }
98 catch ( MalformedURLException e )
99 {
100 AppLogService.error( e.getMessage( ), e );
101
102 return null;
103 }
104 }
105 }