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/*
Copyright (c) 2016 Christian Mollekopf <mollekopf@kolabsys.com>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#pragma once
#include <QObject>
#include <QMultiMap>
#include <functional>
#include <Async/Async>
#include "actionresult.h"
#include "context.h"
namespace Kube {
class ActionHandler : public QObject
{
Q_OBJECT
Q_PROPERTY(QByteArray actionId READ actionId WRITE setActionId)
public:
ActionHandler(QObject *parent = 0);
virtual ~ActionHandler();
virtual bool isActionReady(Context *context);
virtual ActionResult execute(Context *context);
void setActionId(const QByteArray &);
QByteArray actionId() const;
void setRequiredProperties(const QSet<QByteArray> &requiredProperties);
QSet<QByteArray> requiredProperties() const;
private:
QByteArray mActionId;
QSet<QByteArray> mRequiredProperties;
};
template <typename ContextType>
class ActionHandlerBase : public ActionHandler
{
public:
ActionHandlerBase(const QByteArray &actionId)
: ActionHandler{}
{
setActionId(actionId);
}
bool isActionReady(Context *c) Q_DECL_OVERRIDE
{
auto wrapper = ContextType{*c};
return isActionReady(wrapper);
}
ActionResult execute(Context *c) Q_DECL_OVERRIDE
{
ActionResult result;
auto wrapper = ContextType{*c};
execute(wrapper)
.template syncThen<void>([=](const KAsync::Error &error) {
auto modifyableResult = result;
if (error) {
qWarning() << "Job failed: " << error.errorCode << error.errorMessage;
modifyableResult.setError(1);
}
modifyableResult.setDone();
}).exec();
return result;
}
protected:
virtual bool isActionReady(ContextType &) { return true; }
virtual KAsync::Job<void> execute(ContextType &) = 0;
};
class ActionHandlerHelper : public ActionHandler
{
public:
typedef std::function<bool(Context *)> IsReadyFunction;
typedef std::function<void(Context *)> Handler;
typedef std::function<KAsync::Job<void>(Context *)> JobHandler;
ActionHandlerHelper(const Handler &);
ActionHandlerHelper(const IsReadyFunction &, const Handler &);
ActionHandlerHelper(const QByteArray &actionId, const IsReadyFunction &, const Handler &);
ActionHandlerHelper(const QByteArray &actionId, const IsReadyFunction &, const JobHandler &);
bool isActionReady(Context *) Q_DECL_OVERRIDE;
ActionResult execute(Context *) Q_DECL_OVERRIDE;
private:
const IsReadyFunction isReadyFunction;
const Handler handlerFunction;
const JobHandler jobHandlerFunction;
};
}
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