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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <cppuhelper/implementationentry.hxx>
21 : #include <cppuhelper/factory.hxx>
22 : #include <tools/diagnose_ex.h>
23 :
24 : #include <util/scriptingconstants.hxx>
25 : #include <util/util.hxx>
26 :
27 : #include <com/sun/star/container/XContentEnumerationAccess.hpp>
28 : #include "ProviderCache.hxx"
29 :
30 : using namespace com::sun::star;
31 : using namespace com::sun::star::uno;
32 : using namespace com::sun::star::script;
33 :
34 : namespace func_provider
35 : {
36 :
37 8 : ProviderCache::ProviderCache( const Reference< XComponentContext >& xContext, const Sequence< Any >& scriptContext )
38 8 : throw ( RuntimeException ) : m_Sctx( scriptContext ), m_xContext( xContext )
39 : {
40 : // initialise m_hProviderDetailsCache with details of ScriptProviders
41 : // will use createContentEnumeration
42 :
43 8 : m_xMgr = m_xContext->getServiceManager();
44 8 : ENSURE_OR_THROW( m_xMgr.is(), "ProviderCache::ProviderCache() failed to obtain ServiceManager" );
45 8 : populateCache();
46 8 : }
47 :
48 :
49 0 : ProviderCache::ProviderCache( const Reference< XComponentContext >& xContext, const Sequence< Any >& scriptContext, const Sequence< ::rtl::OUString >& blackList )
50 0 : throw ( RuntimeException ) : m_sBlackList( blackList ), m_Sctx( scriptContext ), m_xContext( xContext )
51 :
52 : {
53 : // initialise m_hProviderDetailsCache with details of ScriptProviders
54 : // will use createContentEnumeration
55 :
56 0 : m_xMgr = m_xContext->getServiceManager();
57 0 : ENSURE_OR_THROW( m_xMgr.is(), "ProviderCache::ProviderCache() failed to obtain ServiceManager" );
58 0 : populateCache();
59 0 : }
60 :
61 8 : ProviderCache::~ProviderCache()
62 : {
63 8 : }
64 :
65 : Reference< provider::XScriptProvider >
66 8 : ProviderCache::getProvider( const ::rtl::OUString& providerName )
67 : {
68 8 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
69 8 : Reference< provider::XScriptProvider > provider;
70 8 : ProviderDetails_hash::iterator h_it = m_hProviderDetailsCache.find( providerName );
71 8 : if ( h_it != m_hProviderDetailsCache.end() )
72 : {
73 8 : if ( h_it->second.provider.is() )
74 : {
75 0 : provider = h_it->second.provider;
76 : }
77 : else
78 : {
79 : // need to create provider and insert into hash
80 8 : provider = createProvider( h_it->second );
81 : }
82 : }
83 8 : return provider;
84 : }
85 :
86 : Sequence < Reference< provider::XScriptProvider > >
87 0 : ProviderCache::getAllProviders() throw ( RuntimeException )
88 : {
89 0 : Sequence < Reference< provider::XScriptProvider > > providers ( m_hProviderDetailsCache.size() );
90 : // need to create providers that haven't been created already
91 : // so check what providers exist and what ones don't
92 :
93 0 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
94 0 : ProviderDetails_hash::iterator h_itEnd = m_hProviderDetailsCache.end();
95 0 : ProviderDetails_hash::iterator h_it = m_hProviderDetailsCache.begin();
96 : // should assert if size !> 0
97 0 : if ( m_hProviderDetailsCache.size() )
98 : {
99 0 : sal_Int32 providerIndex = 0;
100 0 : sal_Int32 index = 0;
101 0 : for ( index = 0; h_it != h_itEnd; ++h_it, index++ )
102 : {
103 0 : Reference< provider::XScriptProvider > xScriptProvider = h_it->second.provider;
104 0 : if ( xScriptProvider.is() )
105 : {
106 0 : providers[ providerIndex++ ] = xScriptProvider;
107 : }
108 : else
109 : {
110 : // create provider
111 : try
112 : {
113 0 : xScriptProvider = createProvider( h_it->second );
114 0 : providers[ providerIndex++ ] = xScriptProvider;
115 : }
116 0 : catch ( const Exception& )
117 : {
118 : DBG_UNHANDLED_EXCEPTION();
119 : }
120 : }
121 0 : }
122 :
123 0 : if ( providerIndex < index )
124 : {
125 0 : providers.realloc( providerIndex );
126 : }
127 :
128 : }
129 : else
130 : {
131 : OSL_TRACE("no available providers, something very wrong!!!");
132 : }
133 0 : return providers;
134 : }
135 :
136 : void
137 8 : ProviderCache::populateCache() throw ( RuntimeException )
138 : {
139 : // wrong name in services.rdb
140 8 : ::rtl::OUString serviceName;
141 8 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
142 : try
143 : {
144 8 : ::rtl::OUString languageProviderName( "com.sun.star.script.provider.LanguageScriptProvider" );
145 :
146 8 : Reference< container::XContentEnumerationAccess > xEnumAccess = Reference< container::XContentEnumerationAccess >( m_xMgr, UNO_QUERY_THROW );
147 8 : Reference< container::XEnumeration > xEnum = xEnumAccess->createContentEnumeration ( languageProviderName );
148 :
149 24 : while ( xEnum->hasMoreElements() )
150 : {
151 :
152 8 : Reference< lang::XSingleComponentFactory > factory( xEnum->nextElement(), UNO_QUERY_THROW );
153 8 : Reference< lang::XServiceInfo > xServiceInfo( factory, UNO_QUERY_THROW );
154 :
155 8 : Sequence< ::rtl::OUString > serviceNames = xServiceInfo->getSupportedServiceNames();
156 :
157 8 : if ( serviceNames.getLength() > 0 )
158 : {
159 8 : ::rtl::OUString searchString( "com.sun.star.script.provider.ScriptProviderFor" );
160 :
161 32 : for ( sal_Int32 index = 0; index < serviceNames.getLength(); index++ )
162 : {
163 32 : if ( serviceNames[ index ].indexOf( searchString ) == 0 && !isInBlackList( serviceNames[ index ] ) )
164 : {
165 8 : serviceName = serviceNames[ index ];
166 8 : ProviderDetails details;
167 8 : details.factory = factory;
168 8 : m_hProviderDetailsCache[ serviceName ] = details;
169 8 : break;
170 : }
171 8 : }
172 : }
173 16 : }
174 : }
175 0 : catch ( const Exception &e )
176 : {
177 0 : ::rtl::OUString temp = OUSTR(
178 : "ProviderCache::populateCache: couldn't obtain XSingleComponentFactory for " );
179 0 : temp = temp.concat( serviceName );
180 0 : throw RuntimeException( temp.concat( e.Message ), Reference< XInterface >() );
181 8 : }
182 8 : }
183 :
184 : Reference< provider::XScriptProvider >
185 8 : ProviderCache::createProvider( ProviderDetails& details ) throw ( RuntimeException )
186 : {
187 : try
188 : {
189 : details.provider.set(
190 8 : details.factory->createInstanceWithArgumentsAndContext( m_Sctx, m_xContext ), UNO_QUERY_THROW );
191 : }
192 0 : catch ( const Exception& e )
193 : {
194 0 : ::rtl::OUString temp("ProviderCache::createProvider() Error creating provider from factory!!!\n");
195 0 : throw RuntimeException( temp.concat( e.Message ), Reference< XInterface >() );
196 : }
197 :
198 8 : return details.provider;
199 : }
200 : } //end namespace
201 :
202 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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