#include "DeliverableObject.h"
#include "boost/functional/hash.hpp"
#include "common/container/SubscriberSet.h"
#include "event/ObjectListener.h"

namespace ubeeme {
    namespace moversight {

        /**
         * @brief Constructor.
         */
        DeliverableObject::DeliverableObject()
            : name("<unspec>"), recipient(NULL) {
        }

        /**
         * @brief Destructor
         */
        DeliverableObject::~DeliverableObject(){
        }

        /**
         * @brief Copy Constructor.
         * @param other Object to copy.
         */
        DeliverableObject::DeliverableObject( const DeliverableObject& other) {
            operator=(other);
        }

        /**
         * @brief Assignment operator.
         * @param other Object to copy.
         * @return This object with new values.
         */
        DeliverableObject&
        DeliverableObject::operator=( const DeliverableObject& other) {
            name = other.getName();
            groups = other.getGroups();
            return *this;
        }

        /**
         * @brief Specify that this object has to be delivered only to the given listener.
         * @param ol The object listener that shall receive this object.
         */
        void
        DeliverableObject::deliverOnlyTo( ObjectListener* ol) {
            this->recipient = ol;
        }

        /**
         * @brief Check if this object has recipient information attached to it.
         * @return True, if this object has recipient information attached to it. False otherwise.
         */
        bool
        DeliverableObject::hasRecipient() const {
            return (recipient != NULL ? true : false);
        }

        /**
         * @brief Remove the recipient information leaving it as a NULL value.
         * @return The removed recipient.
         *
         * After this operation the object can be delivered to any subscriber.
         */
        ObjectListener*
        DeliverableObject::removeRecipient() {
            ObjectListener* tmp = recipient;
            recipient = NULL;
            return tmp;
        }

        /**
         * @brief Retrieve the recipient of this message.
         * @return The specified recipient. NULL if unspecified.
         * @retval NULL There was no recipient specified.
         */
        ObjectListener*
        DeliverableObject::getRecipient() {
            return const_cast<ObjectListener*>( static_cast<ObjectListener*>(this->getRecipient()) );
        }

        /**
         * @brief Retrieve the recipient of this message.
         * @return The specified recipient. NULL if unspecified.
         * @retval NULL There was no recipient specified.
         */
        const ObjectListener* const
        DeliverableObject::getRecipient() const {
            return this->recipient;
        }

        /**
         * @brief Return this object's type name.
         * @return This object's type name.
         */
        std::string
        DeliverableObject::getName() const {
            return name;
        }

        /**
         * @brief Set this object's type name and corresponding hash value.
         *
         * The hash value is later used within the object delivery service
         * to identify the list of subscribers for that object.
         *
         * @param s Type name as returned by <typeid().name()>.
         */
        void
        DeliverableObject::setName( const std::string& s) {
            name = s;
        }

        /**
         * @brief Return the list of groups this object belongs to.
         * @return The list of groups.
         */
        const GroupList&
        DeliverableObject::getGroups() const {
            return groups;
        }

        /**
         * @brief Add <g> to the list of groups this object belongs to.
         * @param g The group to add.
         */
        void
        DeliverableObject::addToGroup( const std::string& g) {
            groups.push_back( g);
        }

        /**
         * @brief Create and return a string representation of this object.
         * @return String representation of this object.
         */
        std::string
        DeliverableObject::toString() const {
            std::stringstream buf;
            buf << "DeliverableObject ["
                << this->getName()
                << "]";
            return buf.str();
        }

        /**
         * @brief Output a string representation of this object
         * @param out The output stream to manipulate.
         * @param e The object to interpret
         * @return The modified output stream.
         */
        std::ostream&
        operator<<( std::ostream& out, const DeliverableObject& e) {
            return out << e.toString();
        }

        /**
         * @brief Output a string representation of this object
         * @param out The output stream to manipulate.
         * @param e The object to interpret
         * @return The modified output stream.
         */
        std::ostream&
        operator<<( std::ostream& out, const DeliverableObject* e) {
            return out << e->toString();
        }

    }
}