desktop/source/offacc/acceptor.cxx

   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
  21 #include "acceptor.hxx"
  22 #include <com/sun/star/bridge/BridgeFactory.hpp>
  23 #include <com/sun/star/uno/XNamingService.hpp>
  24 #include <comphelper/processfactory.hxx>
  25 #include <cppuhelper/factory.hxx>
  26 #include <cppuhelper/supportsservice.hxx>
  27
  28 using namespace ::osl;
  29 using namespace css::bridge;
  30 using namespace css::connection;
  31 using namespace css::container;
  32 using namespace css::lang;
  33 using namespace css::uno;
  34
  35 namespace desktop
  36 {
  37
  38 extern "C" void offacc_workerfunc (void * acc)
  39 {
  40     ((Acceptor*)acc)->run();
  41 }
  42
  43 Mutex Acceptor::m_aMutex;
  44
  45 Acceptor::Acceptor( const Reference< XMultiServiceFactory >& rFactory )
  46     : m_thread(NULL)
  47     , m_aAcceptString()
  48     , m_aConnectString()
  49     , m_aProtocol()
  50     , m_bInit(sal_False)
  51     , m_bDying(false)
  52 {
  53     m_rSMgr = rFactory;
  54     // get component context
  55     m_rContext = comphelper::getComponentContext(m_rSMgr);
  56     m_rAcceptor = Reference< XAcceptor > (m_rSMgr->createInstance(
  57         OUString("com.sun.star.connection.Acceptor" )),
  58         UNO_QUERY );
  59     m_rBridgeFactory = BridgeFactory::create(m_rContext);
  60 }
  61
  62
  63 Acceptor::~Acceptor()
  64 {
  65     m_rAcceptor->stopAccepting();
  66     oslThread t;
  67     {
  68         osl::MutexGuard g(m_aMutex);
  69         t = m_thread;
  70     }
  71     //prevent locking if the thread is still waiting
  72     m_bDying = true;
  73     m_cEnable.set();
  74     osl_joinWithThread(t);
  75     {
  76         // Make the final state of m_bridges visible to this thread (since
  77         // m_thread is joined, the code that follows is the only one left
  78         // accessing m_bridges):
  79         osl::MutexGuard g(m_aMutex);
  80     }
  81     for (;;) {
  82         com::sun::star::uno::Reference< com::sun::star::bridge::XBridge > b(
  83             m_bridges.remove());
  84         if (!b.is()) {
  85             break;
  86         }
  87         com::sun::star::uno::Reference< com::sun::star::lang::XComponent >(
  88             b, com::sun::star::uno::UNO_QUERY_THROW)->dispose();
  89     }
  90 }
  91
  92 void SAL_CALL Acceptor::run()
  93 {
  94     while ( m_rAcceptor.is() )
  95     {
  96         RTL_LOGFILE_CONTEXT( aLog, "desktop (lo119109) Acceptor::run" );
  97         try
  98         {
  99             // wait until we get enabled
 100             RTL_LOGFILE_CONTEXT_TRACE( aLog, "desktop (lo119109)"\
 101                 "Acceptor::run waiting for office to come up");
 102             m_cEnable.wait();
 103             if (m_bDying) //see destructor
 104                 break;
 105             RTL_LOGFILE_CONTEXT_TRACE( aLog, "desktop (lo119109)"\
 106                 "Acceptor::run now enabled and continuing");
 107
 108             // accept connection
 109             Reference< XConnection > rConnection = m_rAcceptor->accept( m_aConnectString );
 110             // if we return without a valid connection we mus assume that the acceptor
 111             // is destructed so we break out of the run method terminating the thread
 112             if (! rConnection.is()) break;
 113             OUString aDescription = rConnection->getDescription();
 114             RTL_LOGFILE_CONTEXT_TRACE1( aLog, "desktop (lo119109) Acceptor::run connection %s",
 115                 OUStringToOString(aDescription, RTL_TEXTENCODING_ASCII_US).getStr());
 116
 117             // create instanceprovider for this connection
 118             Reference< XInstanceProvider > rInstanceProvider(
 119                 (XInstanceProvider*)new AccInstanceProvider(m_rSMgr, rConnection));
 120             // create the bridge. The remote end will have a reference to this bridge
 121             // thus preventing the bridge from being disposed. When the remote end releases
 122             // the bridge, it will be destructed.
 123             Reference< XBridge > rBridge = m_rBridgeFactory->createBridge(
 124                 OUString() ,m_aProtocol ,rConnection ,rInstanceProvider );
 125             osl::MutexGuard g(m_aMutex);
 126             m_bridges.add(rBridge);
 127         } catch (const Exception& e) {
 128             SAL_WARN("desktop", "caught Exception \"" << e.Message << "\"");
 129             // connection failed...
 130             // something went wrong during connection setup.
 131             // just wait for a new connection to accept
 132         }
 133     }
 134 }
 135
 136 // XInitialize
 137 void SAL_CALL Acceptor::initialize( const Sequence<Any>& aArguments )
 138     throw( Exception )
 139 {
 140     // prevent multiple initialization
 141     ClearableMutexGuard aGuard( m_aMutex );
 142     RTL_LOGFILE_CONTEXT( aLog, "destop (lo119109) Acceptor::initialize()" );
 143
 144     sal_Bool bOk = sal_False;
 145
 146     // arg count
 147     int nArgs = aArguments.getLength();
 148
 149     // not yet initialized and acceptstring
 150     if (!m_bInit && nArgs > 0 && (aArguments[0] >>= m_aAcceptString))
 151     {
 152         RTL_LOGFILE_CONTEXT_TRACE1( aLog, "desktop (lo119109) Acceptor::initialize string=%s",
 153             OUStringToOString(m_aAcceptString, RTL_TEXTENCODING_ASCII_US).getStr());
 154
 155         // get connect string and protocol from accept string
 156         // "<connectString>;<protocol>"
 157         sal_Int32 nIndex1 = m_aAcceptString.indexOf( (sal_Unicode) ';' );
 158         if (nIndex1 < 0) throw IllegalArgumentException(
 159             OUString("Invalid accept-string format"), m_rContext, 1);
 160         m_aConnectString = m_aAcceptString.copy( 0 , nIndex1 ).trim();
 161         nIndex1++;
 162         sal_Int32 nIndex2 = m_aAcceptString.indexOf( (sal_Unicode) ';' , nIndex1 );
 163         if (nIndex2 < 0) nIndex2 = m_aAcceptString.getLength();
 164         m_aProtocol = m_aAcceptString.copy( nIndex1, nIndex2 - nIndex1 );
 165
 166         // start accepting in new thread...
 167         m_thread = osl_createThread(offacc_workerfunc, this);
 168         m_bInit = sal_True;
 169         bOk = sal_True;
 170     }
 171
 172     // do we want to enable accepting?
 173     sal_Bool bEnable = sal_False;
 174     if (((nArgs == 1 && (aArguments[0] >>= bEnable)) ||
 175          (nArgs == 2 && (aArguments[1] >>= bEnable))) &&
 176         bEnable )
 177     {
 178         m_cEnable.set();
 179         bOk = sal_True;
 180     }
 181
 182     if (!bOk)
 183     {
 184         throw IllegalArgumentException(
 185             OUString("invalid initialization"), m_rContext, 1);
 186     }
 187 }
 188
 189 // XServiceInfo
 190 const sal_Char *Acceptor::serviceName = "com.sun.star.office.Acceptor";
 191 const sal_Char *Acceptor::implementationName = "com.sun.star.office.comp.Acceptor";
 192 const sal_Char *Acceptor::supportedServiceNames[] = {"com.sun.star.office.Acceptor", NULL};
 193 OUString Acceptor::impl_getImplementationName()
 194 {
 195     return OUString::createFromAscii( implementationName );
 196 }
 197 OUString SAL_CALL Acceptor::getImplementationName()
 198     throw (RuntimeException)
 199 {
 200     return Acceptor::impl_getImplementationName();
 201 }
 202 Sequence<OUString> Acceptor::impl_getSupportedServiceNames()
 203 {
 204     Sequence<OUString> aSequence;
 205     for (int i=0; supportedServiceNames[i]!=NULL; i++) {
 206         aSequence.realloc(i+1);
 207         aSequence[i]=(OUString::createFromAscii(supportedServiceNames[i]));
 208     }
 209     return aSequence;
 210 }
 211 Sequence<OUString> SAL_CALL Acceptor::getSupportedServiceNames()
 212     throw (RuntimeException)
 213 {
 214     return Acceptor::impl_getSupportedServiceNames();
 215 }
 216
 217 sal_Bool Acceptor::supportsService(OUString const & ServiceName)
 218     throw (css::uno::RuntimeException)
 219 {
 220     return cppu::supportsService(this, ServiceName);
 221 }
 222
 223 // Factory
 224 Reference< XInterface > Acceptor::impl_getInstance( const Reference< XMultiServiceFactory >& aFactory )
 225 {
 226     try {
 227         return (XComponent*) new Acceptor( aFactory );
 228     } catch ( const Exception& ) {
 229         return (XComponent*) NULL;
 230     }
 231 }
 232
 233 // InstanceProvider
 234 AccInstanceProvider::AccInstanceProvider(const Reference<XMultiServiceFactory>& aFactory, const Reference<XConnection>& rConnection)
 235 {
 236     m_rSMgr = aFactory;
 237     m_rConnection = rConnection;
 238 }
 239
 240 AccInstanceProvider::~AccInstanceProvider()
 241 {
 242 }
 243
 244 Reference<XInterface> SAL_CALL AccInstanceProvider::getInstance (const OUString& aName )
 245         throw ( NoSuchElementException )
 246 {
 247
 248     Reference<XInterface> rInstance;
 249
 250     if ( aName.compareToAscii( "StarOffice.ServiceManager" ) == 0)
 251     {
 252         rInstance = Reference< XInterface >( m_rSMgr );
 253     }
 254     else if(aName.compareToAscii( "StarOffice.ComponentContext" ) == 0 )
 255     {
 256         rInstance = comphelper::getComponentContext( m_rSMgr );
 257     }
 258     else if ( aName.compareToAscii("StarOffice.NamingService" ) == 0 )
 259     {
 260         Reference< XNamingService > rNamingService(
 261             m_rSMgr->createInstance( OUString("com.sun.star.uno.NamingService" )),
 262             UNO_QUERY );
 263         if ( rNamingService.is() )
 264         {
 265             rNamingService->registerObject(
 266                 OUString("StarOffice.ServiceManager" ), m_rSMgr );
 267             rNamingService->registerObject(
 268                 OUString("StarOffice.ComponentContext" ), comphelper::getComponentContext( m_rSMgr ));
 269             rInstance = rNamingService;
 270         }
 271     }
 272     return rInstance;
 273 }
 274
 275 }
 276
 277 // component management stuff...
 278 // ----------------------------------------------------------------------------
 279 extern "C"
 280 {
 281 using namespace desktop;
 282
 283 SAL_DLLPUBLIC_EXPORT void * SAL_CALL offacc_component_getFactory(const sal_Char *pImplementationName, void *pServiceManager, void *)
 284 {
 285     void* pReturn = NULL ;
 286     if  ( pImplementationName && pServiceManager )
 287     {
 288         // Define variables which are used in following macros.
 289         Reference< XSingleServiceFactory > xFactory;
 290         Reference< XMultiServiceFactory >  xServiceManager(
 291             reinterpret_cast< XMultiServiceFactory* >(pServiceManager));
 292
 293         if (Acceptor::impl_getImplementationName().equalsAscii( pImplementationName ) )
 294         {
 295             xFactory = Reference< XSingleServiceFactory >( cppu::createSingleFactory(
 296                 xServiceManager, Acceptor::impl_getImplementationName(),
 297                 Acceptor::impl_getInstance, Acceptor::impl_getSupportedServiceNames()) );
 298         }
 299
 300         // Factory is valid - service was found.
 301         if ( xFactory.is() )
 302         {
 303             xFactory->acquire();
 304             pReturn = xFactory.get();
 305         }
 306     }
 307
 308     // Return with result of this operation.
 309     return pReturn ;
 310 }
 311
 312 } // extern "C"
 313
 314 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */