xref: /aoo42x/main/desktop/source/offacc/acceptor.cxx (revision 55f5063a)

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 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_desktop.hxx"

#include "acceptor.hxx"
#include <unotools/bootstrap.hxx>
#include <vos/process.hxx>
#include <tools/urlobj.hxx>
#include <tools/stream.hxx>
#include <vcl/svapp.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#ifndef _COM_SUN_STAR_UNO_XNAMEINGSERVICE_HPP_
#include <com/sun/star/uno/XNamingService.hpp>
#endif

#include <cppuhelper/factory.hxx>

namespace desktop
{

extern "C" void workerfunc (void * acc)
{
	((Acceptor*)acc)->run();
}

static Reference<XInterface> getComponentContext( const Reference<XMultiServiceFactory>& rFactory)
{
	Reference<XInterface> rContext;
	Reference< XPropertySet > rPropSet( rFactory, UNO_QUERY );
	Any a = rPropSet->getPropertyValue(
		::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "DefaultContext" ) ) );
	a >>= rContext;
	return rContext;
}

Mutex Acceptor::m_aMutex;

Acceptor::Acceptor( const Reference< XMultiServiceFactory >& rFactory )
    : m_thread(NULL)
    , m_aAcceptString()
	, m_aConnectString()
	, m_aProtocol()
	, m_bInit(sal_False)
    , m_bDying(false)
{
	m_rSMgr = rFactory;
	m_rAcceptor = Reference< XAcceptor > (m_rSMgr->createInstance(
		rtl::OUString::createFromAscii( "com.sun.star.connection.Acceptor" )),
		UNO_QUERY );
	m_rBridgeFactory = Reference < XBridgeFactory > (m_rSMgr->createInstance(
		rtl::OUString::createFromAscii( "com.sun.star.bridge.BridgeFactory" )),
		UNO_QUERY );
	// get component context
	m_rContext = getComponentContext(m_rSMgr);
}


Acceptor::~Acceptor()
{
	m_rAcceptor->stopAccepting();
    oslThread t;
    {
        osl::MutexGuard g(m_aMutex);
        t = m_thread;
    }
    //prevent locking if the thread is still waiting
    m_bDying = true;
    m_cEnable.set();
    osl_joinWithThread(t);
    // osl_destroyThread(t);
    {
        // Make the final state of m_bridges visible to this thread (since
        // m_thread is joined, the code that follows is the only one left
        // accessing m_bridges):
        osl::MutexGuard g(m_aMutex);
    }
    for (;;) {
        com::sun::star::uno::Reference< com::sun::star::bridge::XBridge > b(
            m_bridges.remove());
        if (!b.is()) {
            break;
        }
        com::sun::star::uno::Reference< com::sun::star::lang::XComponent >(
            b, com::sun::star::uno::UNO_QUERY_THROW)->dispose();
    }
}

void SAL_CALL Acceptor::run()
{
	while ( m_rAcceptor.is() && m_rBridgeFactory.is()  )
	{
		RTL_LOGFILE_CONTEXT( aLog, "desktop (lo119109) Acceptor::run" );
		try
		{
			// wait until we get enabled
			RTL_LOGFILE_CONTEXT_TRACE( aLog, "desktop (lo119109)"\
				"Acceptor::run waiting for office to come up");
			m_cEnable.wait();
            if (m_bDying) //see destructor
                break;
			RTL_LOGFILE_CONTEXT_TRACE( aLog, "desktop (lo119109)"\
				"Acceptor::run now enabled and continuing");

			// accept connection
			Reference< XConnection > rConnection = m_rAcceptor->accept( m_aConnectString );
			// if we return without a valid connection we must assume that the acceptor
			// is destructed so we break out of the run method terminating the thread
			if (! rConnection.is()) break;
			OUString aDescription = rConnection->getDescription();
			RTL_LOGFILE_CONTEXT_TRACE1( aLog, "desktop (lo119109) Acceptor::run connection %s",
				OUStringToOString(aDescription, RTL_TEXTENCODING_ASCII_US).getStr());

			// create instanceprovider for this connection
			Reference< XInstanceProvider > rInstanceProvider(
				(XInstanceProvider*)new AccInstanceProvider(m_rSMgr, rConnection));
			// create the bridge. The remote end will have a reference to this bridge
			// thus preventing the bridge from being disposed. When the remote end releases
			// the bridge, it will be destructed.
			Reference< XBridge > rBridge = m_rBridgeFactory->createBridge(
				rtl::OUString() ,m_aProtocol ,rConnection ,rInstanceProvider );
            osl::MutexGuard g(m_aMutex);
            m_bridges.add(rBridge);
		} catch (Exception&) {
			// connection failed...
			// something went wrong during connection setup.
			// just wait for a new connection to accept
		}
	}
}

// XInitialize
void SAL_CALL Acceptor::initialize( const Sequence<Any>& aArguments )
	throw( Exception )
{
	// prevent multiple initialization
	ClearableMutexGuard	aGuard(	m_aMutex );
	RTL_LOGFILE_CONTEXT( aLog, "destop (lo119109) Acceptor::initialize()" );

	sal_Bool bOk = sal_False;

	// arg count
	int nArgs = aArguments.getLength();

	// not yet initialized and acceptstring
	if (!m_bInit && nArgs > 0 && (aArguments[0] >>= m_aAcceptString))
	{
		RTL_LOGFILE_CONTEXT_TRACE1( aLog, "desktop (lo119109) Acceptor::initialize string=%s",
			OUStringToOString(m_aAcceptString, RTL_TEXTENCODING_ASCII_US).getStr());

		// get connect string and protocol from accept string
		// "<connectString>;<protocol>"
		sal_Int32 nIndex1 = m_aAcceptString.indexOf( (sal_Unicode) ';' );
		if (nIndex1 < 0) throw IllegalArgumentException(
			OUString::createFromAscii("Invalid accept-string format"), m_rContext, 1);
		m_aConnectString = m_aAcceptString.copy( 0 , nIndex1 ).trim();
		nIndex1++;
		sal_Int32 nIndex2 = m_aAcceptString.indexOf( (sal_Unicode) ';' , nIndex1 );
		if (nIndex2 < 0) nIndex2 = m_aAcceptString.getLength();
		m_aProtocol = m_aAcceptString.copy( nIndex1, nIndex2 - nIndex1 );

		// start accepting in new thread...
        m_thread = osl_createThread(workerfunc, this);
		m_bInit = sal_True;
		bOk = sal_True;
	}

	// do we want to enable accepting?
	sal_Bool bEnable = sal_False;
    if (((nArgs == 1 && (aArguments[0] >>= bEnable)) ||
         (nArgs == 2 && (aArguments[1] >>= bEnable))) &&
        bEnable )
	{
		m_cEnable.set();
		bOk = sal_True;
	}

	if (!bOk)
	{
		throw IllegalArgumentException(
			OUString::createFromAscii("invalid initialization"), m_rContext, 1);
	}
}

// XServiceInfo
const sal_Char *Acceptor::serviceName = "com.sun.star.office.Acceptor";
const sal_Char *Acceptor::implementationName = "com.sun.star.office.comp.Acceptor";
const sal_Char *Acceptor::supportedServiceNames[] = {"com.sun.star.office.Acceptor", NULL};
OUString Acceptor::impl_getImplementationName()
{
	return OUString::createFromAscii( implementationName );
}
OUString SAL_CALL Acceptor::getImplementationName()
	throw (RuntimeException)
{
	return Acceptor::impl_getImplementationName();
}
Sequence<OUString> Acceptor::impl_getSupportedServiceNames()
{
	Sequence<OUString> aSequence;
	for (int i=0; supportedServiceNames[i]!=NULL; i++) {
		aSequence.realloc(i+1);
		aSequence[i]=(OUString::createFromAscii(supportedServiceNames[i]));
	}
	return aSequence;
}
Sequence<OUString> SAL_CALL Acceptor::getSupportedServiceNames()
	throw (RuntimeException)
{
	return Acceptor::impl_getSupportedServiceNames();
}
sal_Bool SAL_CALL Acceptor::supportsService( const OUString&)
	throw (RuntimeException)
{
	return sal_False;
}

// Factory
Reference< XInterface > Acceptor::impl_getInstance( const Reference< XMultiServiceFactory >& aFactory )
{
	try {
		return (XComponent*) new Acceptor( aFactory );
	} catch ( Exception& ) {
		return (XComponent*) NULL;
	}
}

// InstanceProvider
AccInstanceProvider::AccInstanceProvider(const Reference<XMultiServiceFactory>& aFactory, const Reference<XConnection>& rConnection)
{
	m_rSMgr = aFactory;
	m_rConnection = rConnection;
}

AccInstanceProvider::~AccInstanceProvider()
{
}

Reference<XInterface> SAL_CALL AccInstanceProvider::getInstance (const OUString& aName )
        throw ( NoSuchElementException )
{

	Reference<XInterface> rInstance;

	if ( aName.compareToAscii( "StarOffice.ServiceManager" ) == 0)
	{
		rInstance = Reference< XInterface >( m_rSMgr );
	}
    else if(aName.compareToAscii( "StarOffice.ComponentContext" ) == 0 )
    {
		rInstance = getComponentContext( m_rSMgr );
	}
	else if ( aName.compareToAscii("StarOffice.NamingService" ) == 0 )
	{
		Reference< XNamingService > rNamingService(
			m_rSMgr->createInstance( OUString::createFromAscii( "com.sun.star.uno.NamingService" )),
			UNO_QUERY );
		if ( rNamingService.is() )
		{
			rNamingService->registerObject(
				OUString::createFromAscii( "StarOffice.ServiceManager" ), m_rSMgr );
			rNamingService->registerObject(
				OUString::createFromAscii( "StarOffice.ComponentContext" ), getComponentContext( m_rSMgr ));
			rInstance = rNamingService;
		}
	}
	/*
	else if ( aName.compareToAscii("com.sun.star.ucb.RemoteContentProviderAcceptor" ))
	{
		Reference< XMultiServiceFactory > rSMgr = ::comphelper::getProcessServiceFactory();
		if ( rSMgr.is() ) {
			try {
				rInstance = rSMgr->createInstance( sObjectName );
			}
			catch (Exception const &) {}
		}
	}
	*/
	return rInstance;
}

}

// component management stuff...
// ----------------------------------------------------------------------------
extern "C"
{
using namespace desktop;

void SAL_CALL
component_getImplementationEnvironment(const sal_Char **ppEnvironmentTypeName, uno_Environment **)
{
	*ppEnvironmentTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME ;
}

void * SAL_CALL
component_getFactory(const sal_Char *pImplementationName, void *pServiceManager, void *)
{
	void* pReturn = NULL ;
	if  ( pImplementationName && pServiceManager )
	{
		// Define variables which are used in following macros.
		Reference< XSingleServiceFactory > xFactory;
		Reference< XMultiServiceFactory >  xServiceManager(
			reinterpret_cast< XMultiServiceFactory* >(pServiceManager));

		if (Acceptor::impl_getImplementationName().compareToAscii( pImplementationName ) == COMPARE_EQUAL )
		{
			xFactory = Reference< XSingleServiceFactory >( cppu::createSingleFactory(
				xServiceManager, Acceptor::impl_getImplementationName(),
				Acceptor::impl_getInstance, Acceptor::impl_getSupportedServiceNames()) );
		}

		// Factory is valid - service was found.
		if ( xFactory.is() )
		{
			xFactory->acquire();
			pReturn = xFactory.get();
		}
	}

	// Return with result of this operation.
	return pReturn ;
}

} // extern "C"