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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 :
26 : #include <com/sun/star/container/XContentEnumerationAccess.hpp>
27 : #include "ProviderCache.hxx"
28 :
29 : using namespace com::sun::star;
30 : using namespace com::sun::star::uno;
31 : using namespace com::sun::star::script;
32 :
33 : namespace func_provider
34 : {
35 :
36 0 : ProviderCache::ProviderCache( const Reference< XComponentContext >& xContext, const Sequence< Any >& scriptContext )
37 0 : throw ( RuntimeException ) : m_Sctx( scriptContext ), m_xContext( xContext )
38 : {
39 : // initialise m_hProviderDetailsCache with details of ScriptProviders
40 : // will use createContentEnumeration
41 :
42 0 : m_xMgr = m_xContext->getServiceManager();
43 0 : ENSURE_OR_THROW( m_xMgr.is(), "ProviderCache::ProviderCache() failed to obtain ServiceManager" );
44 0 : populateCache();
45 0 : }
46 :
47 :
48 0 : ProviderCache::ProviderCache( const Reference< XComponentContext >& xContext, const Sequence< Any >& scriptContext, const Sequence< OUString >& blackList )
49 0 : throw ( RuntimeException ) : m_sBlackList( blackList ), m_Sctx( scriptContext ), m_xContext( xContext )
50 :
51 : {
52 : // initialise m_hProviderDetailsCache with details of ScriptProviders
53 : // will use createContentEnumeration
54 :
55 0 : m_xMgr = m_xContext->getServiceManager();
56 0 : ENSURE_OR_THROW( m_xMgr.is(), "ProviderCache::ProviderCache() failed to obtain ServiceManager" );
57 0 : populateCache();
58 0 : }
59 :
60 0 : ProviderCache::~ProviderCache()
61 : {
62 0 : }
63 :
64 : Reference< provider::XScriptProvider >
65 0 : ProviderCache::getProvider( const OUString& providerName )
66 : {
67 0 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
68 0 : Reference< provider::XScriptProvider > provider;
69 0 : ProviderDetails_hash::iterator h_it = m_hProviderDetailsCache.find( providerName );
70 0 : if ( h_it != m_hProviderDetailsCache.end() )
71 : {
72 0 : if ( h_it->second.provider.is() )
73 : {
74 0 : provider = h_it->second.provider;
75 : }
76 : else
77 : {
78 : // need to create provider and insert into hash
79 0 : provider = createProvider( h_it->second );
80 : }
81 : }
82 0 : return provider;
83 : }
84 :
85 : Sequence < Reference< provider::XScriptProvider > >
86 0 : ProviderCache::getAllProviders() throw ( RuntimeException )
87 : {
88 0 : Sequence < Reference< provider::XScriptProvider > > providers ( m_hProviderDetailsCache.size() );
89 : // need to create providers that haven't been created already
90 : // so check what providers exist and what ones don't
91 :
92 0 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
93 0 : ProviderDetails_hash::iterator h_itEnd = m_hProviderDetailsCache.end();
94 0 : ProviderDetails_hash::iterator h_it = m_hProviderDetailsCache.begin();
95 : // should assert if size !> 0
96 0 : if ( m_hProviderDetailsCache.size() )
97 : {
98 0 : sal_Int32 providerIndex = 0;
99 0 : sal_Int32 index = 0;
100 0 : for ( index = 0; h_it != h_itEnd; ++h_it, index++ )
101 : {
102 0 : Reference< provider::XScriptProvider > xScriptProvider = h_it->second.provider;
103 0 : if ( xScriptProvider.is() )
104 : {
105 0 : providers[ providerIndex++ ] = xScriptProvider;
106 : }
107 : else
108 : {
109 : // create provider
110 : try
111 : {
112 0 : xScriptProvider = createProvider( h_it->second );
113 0 : providers[ providerIndex++ ] = xScriptProvider;
114 : }
115 0 : catch ( const Exception& )
116 : {
117 : DBG_UNHANDLED_EXCEPTION();
118 : }
119 : }
120 0 : }
121 :
122 0 : if ( providerIndex < index )
123 : {
124 0 : providers.realloc( providerIndex );
125 : }
126 :
127 : }
128 : else
129 : {
130 : OSL_TRACE("no available providers, something very wrong!!!");
131 : }
132 0 : return providers;
133 : }
134 :
135 : void
136 0 : ProviderCache::populateCache() throw ( RuntimeException )
137 : {
138 : // wrong name in services.rdb
139 0 : OUString serviceName;
140 0 : ::osl::Guard< osl::Mutex > aGuard( m_mutex );
141 : try
142 : {
143 0 : OUString languageProviderName( "com.sun.star.script.provider.LanguageScriptProvider" );
144 :
145 0 : Reference< container::XContentEnumerationAccess > xEnumAccess = Reference< container::XContentEnumerationAccess >( m_xMgr, UNO_QUERY_THROW );
146 0 : Reference< container::XEnumeration > xEnum = xEnumAccess->createContentEnumeration ( languageProviderName );
147 :
148 0 : while ( xEnum->hasMoreElements() )
149 : {
150 :
151 0 : Reference< lang::XSingleComponentFactory > factory( xEnum->nextElement(), UNO_QUERY_THROW );
152 0 : Reference< lang::XServiceInfo > xServiceInfo( factory, UNO_QUERY_THROW );
153 :
154 0 : Sequence< OUString > serviceNames = xServiceInfo->getSupportedServiceNames();
155 :
156 0 : if ( serviceNames.getLength() > 0 )
157 : {
158 0 : OUString searchString( "com.sun.star.script.provider.ScriptProviderFor" );
159 :
160 0 : for ( sal_Int32 index = 0; index < serviceNames.getLength(); index++ )
161 : {
162 0 : if ( serviceNames[ index ].startsWith( searchString ) && !isInBlackList( serviceNames[ index ] ) )
163 : {
164 0 : serviceName = serviceNames[ index ];
165 0 : ProviderDetails details;
166 0 : details.factory = factory;
167 0 : m_hProviderDetailsCache[ serviceName ] = details;
168 0 : break;
169 : }
170 0 : }
171 : }
172 0 : }
173 : }
174 0 : catch ( const Exception &e )
175 : {
176 : OUString temp =
177 : "ProviderCache::populateCache: couldn't obtain XSingleComponentFactory for "
178 0 : + serviceName;
179 0 : throw RuntimeException( temp.concat( e.Message ), Reference< XInterface >() );
180 0 : }
181 0 : }
182 :
183 : Reference< provider::XScriptProvider >
184 0 : ProviderCache::createProvider( ProviderDetails& details ) throw ( RuntimeException )
185 : {
186 : try
187 : {
188 : details.provider.set(
189 0 : details.factory->createInstanceWithArgumentsAndContext( m_Sctx, m_xContext ), UNO_QUERY_THROW );
190 : }
191 0 : catch ( const Exception& e )
192 : {
193 0 : OUString temp("ProviderCache::createProvider() Error creating provider from factory!!!\n");
194 0 : throw RuntimeException( temp.concat( e.Message ), Reference< XInterface >() );
195 : }
196 :
197 0 : return details.provider;
198 : }
199 : } //end namespace
200 :
201 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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