classhandlermanager.h

/*
    Copyright (c) 2013 Timothy Reaves treaves@silverfieldstech.com

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
  */

#ifndef TUFAO_CLASSHANDLERMANAGER_H
#define TUFAO_CLASSHANDLERMANAGER_H

#include <QtCore/QObject>
#include <QtCore/QList>
#include <QtCore/QHash>
#include <QtCore/QMap>
#include <QtCore/QMultiHash>
#include <QtCore/QStringList>

#include "abstracthttpserverrequesthandler.h"

namespace Tufao {

class ClassHandler;

class ClassHandlerManager : public QObject, public AbstractHttpServerRequestHandler
{
    Q_OBJECT
    Q_PROPERTY(QString urlNamespace READ urlNamespace)
public:
    explicit ClassHandlerManager(const QString &pluginID = QString{},
                                 const QString &urlNamespace = QString{},
                                 QObject * parent = 0);

    virtual ~ClassHandlerManager();

    QString urlNamespace() const;

    static void addPluginLocation(const QString location);

public slots:
    bool handleRequest(HttpServerRequest & request, HttpServerResponse & response) override;

private:
    struct PluginDescriptor
    {
        PluginDescriptor(){;}
        ClassHandler * handler;
        QString className;
        QHash<uint, int> methods;
        QList<QString> methodNames;
    };

    void registerHandler(ClassHandler * handler);

    bool processRequest(HttpServerRequest & request,
                        HttpServerResponse & response,
                        const QString className,
                        const QString methodName,
                        const QHash<QString, QString> arguments);

    void dispatchVoidMethod(QMetaMethod method, ClassHandler * handler, const QGenericArgument * args) const;
    void dispatchJSONMethod(HttpServerResponse & response,
                            QMetaMethod method,
                            ClassHandler * handler,
                            const QGenericArgument * args) const;

    int selectMethod(const QString className, const QString methodName, const QHash<QString, QString> arguments) const;

    static QStringList pluginLocations;

    struct Priv;
    Priv *priv;
};

} // namespace Tufao

#endif // TUFAO_CLASSHANDLERMANAGER_H