Quelle jobdispatch.cxx
Sprache: C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* 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 .
*/
#include <jobs/configaccess.hxx>
#include <jobs/joburl.hxx>
#include <jobs/job.hxx>
#include <classes/converter.hxx>
#include <com/sun/star/frame/DispatchResultEvent.hpp>
#include <com/sun/star/frame/DispatchResultState.hpp>
#include <com/sun/star/frame/ModuleManager.hpp>
#include <com/sun/star/frame/XNotifyingDispatch.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
#include <com/sun/star/frame/XDispatchResultListener.hpp>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <cppuhelper/implbase.hxx>
#include <rtl/ref.hxx>
#include <utility>
#include <vcl/svapp.hxx>
using namespace framework;
namespace {
/**
@ short implements a dispatch object for jobs
@ descr Such dispatch object will be used by the generic dispatch mechanism if
a URL " vnd . sun . star . job : alias = < name > " occurs .
Then an instance of this class will be created and used .
This new instance will be called within his method
dispatch ( ) or dispatchWithNotification ( ) for executing the
real job . We do it , control the life cycle of this internal
wrapped job and inform any interested listener if it finish .
*/
class JobDispatch : public ::cppu::WeakImplHelper<
css::lang::XServiceInfo
, css::lang::XInitialization
, css::frame::XDispatchProvider
, css::frame::XNotifyingDispatch > // => XDispatch
{
private :
/** reference to the uno service manager */
css::uno::Reference< css::uno::XComponentContext > m_xContext;
/** reference to the frame, inside which this dispatch is used */
css::uno::Reference< css::frame::XFrame > m_xFrame;
/** name of module (writer, impress etc.) the frame is for */
OUString m_sModuleIdentifier;
// native interface methods
public :
explicit JobDispatch(css::uno::Reference< css::uno::XComponentContext > xContext);
virtual ~JobDispatch() override;
void impl_dispatchEvent ( const OUString& sEvent ,
const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
const css::uno::Reference< css::frame::XDispatchResultListener >& xListener );
void impl_dispatchService( const OUString& sService ,
const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
const css::uno::Reference< css::frame::XDispatchResultListener >& xListener );
void impl_dispatchAlias ( const OUString& sAlias ,
const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
const css::uno::Reference< css::frame::XDispatchResultListener >& xListener );
public :
virtual OUString SAL_CALL getImplementationName() override
{
return u"com.sun.star.comp.framework.jobs.JobDispatch" _ustr;
}
virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
{
return cppu::supportsService(this , ServiceName);
}
virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
{
return {u"com.sun.star.frame.ProtocolHandler" _ustr};
}
// Xinitialization
virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& lArguments ) override;
// XDispatchProvider
virtual css::uno::Reference< css::frame::XDispatch > SAL_CALL queryDispatch ( const css::util::URL& aURL ,
const OUString& sTargetFrameName ,
sal_Int32 nSearchFlags ) override;
virtual css::uno::Sequence< css::uno::Reference< css::frame::XDispatch > > SAL_CALL queryDispatches( const css::uno::Sequence< css::frame::DispatchDescriptor >& lDescriptor ) override;
// XNotifyingDispatch
virtual void SAL_CALL dispatchWithNotification( const css::util::URL& aURL ,
const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
const css::uno::Reference< css::frame::XDispatchResultListener >& xListener ) override;
// XDispatch
virtual void SAL_CALL dispatch ( const css::util::URL& aURL ,
const css::uno::Sequence< css::beans::PropertyValue >& lArgs ) override;
virtual void SAL_CALL addStatusListener ( const css::uno::Reference< css::frame::XStatusListener >& xListener ,
const css::util::URL& aURL ) override;
virtual void SAL_CALL removeStatusListener( const css::uno::Reference< css::frame::XStatusListener >& xListener ,
const css::util::URL& aURL ) override;
};
/**
@ short standard ctor
@ descr It initialize this new instance .
@ param xContext
reference to the uno service manager
*/
JobDispatch::JobDispatch( /*IN*/ css::uno::Reference< css::uno::XComponentContext > xContext )
: m_xContext (std::move(xContext ))
{
}
/**
@ short let this instance die
@ descr We have to release all used resources and free used memory .
*/
JobDispatch::~JobDispatch()
{
// release all used resources
m_xContext.clear();
m_xFrame.clear();
}
/**
@ short implementation of XInitialization
@ descr A protocol handler can provide this functionality , if it wish to get additional information
about the context it runs . In this case the frame reference would be given by the outside code .
@ param lArguments
the list of initialization arguments
First parameter should be the frame reference we need .
*/
void SAL_CALL JobDispatch::initialize( const css::uno::Sequence< css::uno::Any >& lArguments )
{
SolarMutexGuard g;
for (int a=0 ; a<lArguments.getLength(); ++a)
{
if (a==0 )
{
lArguments[a] >>= m_xFrame;
css::uno::Reference< css::frame::XModuleManager2 > xModuleManager =
css::frame::ModuleManager::create(m_xContext);
try
{
m_sModuleIdentifier = xModuleManager->identify( m_xFrame );
}
catch ( const css::uno::Exception& )
{}
}
}
}
/**
@ short implementation of XDispatchProvider : : queryDispatches ( )
@ descr Every protocol handler will be asked for his agreement , if a URL was queried
for which this handler is registered . It ' s the chance for this handler to validate
the given URL and return a dispatch object ( may be itself ) or not .
@ param aURL
the queried URL , which should be checked
@ param sTargetFrameName
describes the target frame , in which context this handler will be used
Is mostly set to " " , " _ self " , " _ blank " , " _ default " or a non special one
using SELF / CREATE as search flags .
@ param nSearchFlags
Can be SELF or CREATE only and are set only if sTargetFrameName isn ' t a special target
*/
css::uno::Reference< css::frame::XDispatch > SAL_CALL JobDispatch::queryDispatch( /*IN*/ const css::util::URL& aURL ,
/*IN*/ const OUString& /*sTargetFrameName*/ ,
/*IN*/ sal_Int32 /*nSearchFlags*/ )
{
css::uno::Reference< css::frame::XDispatch > xDispatch;
JobURL aAnalyzedURL(aURL.Complete);
if (aAnalyzedURL.isValid())
xDispatch = this ;
return xDispatch;
}
/**
@ short implementation of XDispatchProvider : : queryDispatches ( )
@ descr It ' s an optimized access for remote , so you can ask for
multiple dispatch objects at the same time .
@ param lDescriptor
a list of queryDispatch ( ) parameter
@ return A list of corresponding dispatch objects .
NULL references are not skipped . Every result
match to one given descriptor item .
*/
css::uno::Sequence< css::uno::Reference< css::frame::XDispatch > > SAL_CALL JobDispatch::queryDispatches( const css::uno::Sequence< css::frame::DispatchDescriptor >& lDescriptor )
{
// don't pack resulting list!
sal_Int32 nCount = lDescriptor.getLength();
css::uno::Sequence< css::uno::Reference< css::frame::XDispatch > > lDispatches(nCount);
auto lDispatchesRange = asNonConstRange(lDispatches);
for (sal_Int32 i=0 ; i<nCount; ++i)
lDispatchesRange[i] = queryDispatch( lDescriptor[i].FeatureURL ,
lDescriptor[i].FrameName ,
lDescriptor[i].SearchFlags );
return lDispatches;
}
/**
@ short implementation of XNotifyingDispatch : : dispatchWithNotification ( )
@ descr It creates the job service implementation and call execute on it .
Further it starts the life time control of it . ( important for async job )
For synchronous job we react for the returned result directly . . . for asynchronous
ones we do it later inside our callback method . But we use the same impl method
doing that to share the code . ( see impl_finishJob ( ) )
If a job is already running , ( it can only occur for asynchronous jobs )
don ' t start the same job a second time . Queue in the given dispatch parameter
and return immediately . If the current running job call us back , we will start this
new dispatch request .
If no job is running - queue the parameter too ! But then start the new job immediately .
We have to queue it every time - because it hold us alive by ref count !
@ param aURL
describe the job ( s ) , which should be started
@ param lArgs
optional arguments for this request
@ param xListener
an interested listener for possible results of this operation
*/
void SAL_CALL JobDispatch::dispatchWithNotification( /*IN*/ const css::util::URL& aURL ,
/*IN*/ const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
/*IN*/ const css::uno::Reference< css::frame::XDispatchResultListener >& xListener )
{
JobURL aAnalyzedURL(aURL.Complete);
if (aAnalyzedURL.isValid())
{
OUString sRequest;
if (aAnalyzedURL.getEvent(sRequest))
impl_dispatchEvent(sRequest, lArgs, xListener);
else
if (aAnalyzedURL.getService(sRequest))
impl_dispatchService(sRequest, lArgs, xListener);
else
if (aAnalyzedURL.getAlias(sRequest))
impl_dispatchAlias(sRequest, lArgs, xListener);
}
}
/**
@ short dispatch an event
@ descr We search all registered jobs for this event and execute it .
After doing so , we inform the given listener about the results .
( There will be one notify for every executed job ! )
@ param sEvent
the event , for which jobs can be registered
@ param lArgs
optional arguments for this request
Currently not used !
@ param xListener
an interested listener for possible results of this operation
*/
void JobDispatch::impl_dispatchEvent( /*IN*/ const OUString& sEvent ,
/*IN*/ const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
/*IN*/ const css::uno::Reference< css::frame::XDispatchResultListener >& xListener )
{
// get list of all enabled jobs
// The called static helper methods read it from the configuration and
// filter disabled jobs using it's time stamp values.
std::vector< OUString > lJobs = JobData::getEnabledJobsForEvent(m_xContext, sEvent);
css::uno::Reference< css::frame::XDispatchResultListener > xThis( static_cast < ::cppu::OWeakObject* >(this ), css::uno::UNO_QUERY );
// no jobs... no execution
// But a may given listener will know something...
// I think this operation was finished successfully.
// It's not really an error, if no registered jobs could be located.
// Step over all found jobs and execute it
int nExecutedJobs=0 ;
for (const OUString & lJob : lJobs)
{
JobData aCfg(m_xContext);
aCfg.setEvent(sEvent, lJob);
aCfg.setEnvironment(JobData::E_DISPATCH);
const bool bIsEnabled=aCfg.hasCorrectContext(m_sModuleIdentifier);
rtl::Reference<Job> pJob = new Job(m_xContext, m_xFrame);
pJob->setJobData(aCfg);
if (!bIsEnabled)
continue ;
// Special mode for listener.
// We don't notify it directly here. We delegate that
// to the job implementation. But we must set ourself there too.
// Because this job must fake the source address of the event.
// Otherwise the listener may ignore it.
if (xListener.is())
pJob->setDispatchResultFake(xListener, xThis);
pJob->execute(Converter::convert_seqPropVal2seqNamedVal(lArgs));
++nExecutedJobs;
}
if (nExecutedJobs<1 && xListener.is())
{
css::frame::DispatchResultEvent aEvent;
aEvent.Source = xThis;
aEvent.State = css::frame::DispatchResultState::SUCCESS;
xListener->dispatchFinished(aEvent);
}
}
/**
@ short dispatch a service
@ descr We use the given name only to create and if possible to initialize
it as a uno service . It can be useful for creating ( caching ? )
of e . g . one instance services .
@ param sService
the uno implementation or service name of the job , which should be instantiated
@ param lArgs
optional arguments for this request
Currently not used !
@ param xListener
an interested listener for possible results of this operation
*/
void JobDispatch::impl_dispatchService( /*IN*/ const OUString& sService ,
/*IN*/ const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
/*IN*/ const css::uno::Reference< css::frame::XDispatchResultListener >& xListener )
{
JobData aCfg(m_xContext);
aCfg.setService(sService);
aCfg.setEnvironment(JobData::E_DISPATCH);
/*Attention!
Jobs implements interfaces and dies by ref count !
And freeing of such uno object is done by uno itself .
So we have to use dynamic memory everytimes .
*/
rtl::Reference<Job> pJob = new Job(m_xContext, m_xFrame);
pJob->setJobData(aCfg);
css::uno::Reference< css::frame::XDispatchResultListener > xThis( static_cast < ::cppu::OWeakObject* >(this ), css::uno::UNO_QUERY );
// Special mode for listener.
// We don't notify it directly here. We delegate that
// to the job implementation. But we must set ourself there too.
// Because this job must fake the source address of the event.
// Otherwise the listener may ignore it.
if (xListener.is())
pJob->setDispatchResultFake(xListener, xThis);
pJob->execute(Converter::convert_seqPropVal2seqNamedVal(lArgs));
}
/**
@ short dispatch an alias
@ descr We use this alias to locate a job inside the configuration
and execute it . Further we inform the given listener about the results .
@ param sAlias
the alias name of the configured job
@ param lArgs
optional arguments for this request
Currently not used !
@ param xListener
an interested listener for possible results of this operation
*/
void JobDispatch::impl_dispatchAlias( /*IN*/ const OUString& sAlias ,
/*IN*/ const css::uno::Sequence< css::beans::PropertyValue >& lArgs ,
/*IN*/ const css::uno::Reference< css::frame::XDispatchResultListener >& xListener )
{
JobData aCfg(m_xContext);
aCfg.setAlias(sAlias);
aCfg.setEnvironment(JobData::E_DISPATCH);
rtl::Reference<Job> pJob = new Job(m_xContext, m_xFrame);
pJob->setJobData(aCfg);
css::uno::Reference< css::frame::XDispatchResultListener > xThis( static_cast < ::cppu::OWeakObject* >(this ), css::uno::UNO_QUERY );
// Special mode for listener.
// We don't notify it directly here. We delegate that
// to the job implementation. But we must set ourself there too.
// Because this job must fake the source address of the event.
// Otherwise the listener may ignore it.
if (xListener.is())
pJob->setDispatchResultFake(xListener, xThis);
pJob->execute(Converter::convert_seqPropVal2seqNamedVal(lArgs));
}
/**
@ short implementation of XDispatch : : dispatch ( )
@ descr Because the methods dispatch ( ) and dispatchWithNotification ( ) are different in her parameters
only , we can forward this request to dispatchWithNotification ( ) by using an empty listener !
@ param aURL
describe the job ( s ) , which should be started
@ param lArgs
optional arguments for this request
@ see dispatchWithNotification ( )
*/
void SAL_CALL JobDispatch::dispatch( /*IN*/ const css::util::URL& aURL ,
/*IN*/ const css::uno::Sequence< css::beans::PropertyValue >& lArgs )
{
dispatchWithNotification(aURL, lArgs, css::uno::Reference< css::frame::XDispatchResultListener >());
}
/**
@ short not supported
*/
void SAL_CALL JobDispatch::addStatusListener( /*IN*/ const css::uno::Reference< css::frame::XStatusListener >&,
/*IN*/ const css::util::URL& )
{
}
/**
@ short not supported
*/
void SAL_CALL JobDispatch::removeStatusListener( /*IN*/ const css::uno::Reference< css::frame::XStatusListener >&,
/*IN*/ const css::util::URL& )
{
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_comp_framework_jobs_JobDispatch_get_implementation(
css::uno::XComponentContext *context,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new JobDispatch(context));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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