50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
#ifndef __MESSAGECALLBACK_H_
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#define __MESSAGECALLBACK_H_
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#ifdef __cplusplus
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#include "icsneo/communication/message/message.h"
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#include "icsneo/communication/message/filter/messagefilter.h"
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#include <memory>
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#include <functional>
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namespace icsneo {
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class MessageCallback {
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public:
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typedef std::function< void( std::shared_ptr<Message> ) > fn_messageCallback;
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MessageCallback(fn_messageCallback cb, std::shared_ptr<MessageFilter> f)
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: callback(cb), filter(f ? f : std::make_shared<MessageFilter>()) {
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if(!cb)
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throw std::bad_function_call();
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}
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MessageCallback(fn_messageCallback cb, MessageFilter f = MessageFilter())
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: MessageCallback(cb, std::make_shared<MessageFilter>(f)) {}
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// Allow the filter to be placed first if the user wants (maybe in the case of a lambda)
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MessageCallback(std::shared_ptr<MessageFilter> f, fn_messageCallback cb)
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: MessageCallback(cb, f) {}
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MessageCallback(MessageFilter f, fn_messageCallback cb)
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: MessageCallback(cb, std::make_shared<MessageFilter>(f)) {}
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virtual bool callIfMatch(const std::shared_ptr<Message>& message) const {
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bool ret = filter->match(message);
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if(ret)
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callback(message);
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return ret;
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}
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const MessageFilter& getFilter() const { return *filter; }
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const fn_messageCallback& getCallback() const { return callback; }
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protected:
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const fn_messageCallback callback;
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const std::shared_ptr<MessageFilter> filter;
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};
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}
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#endif // __cplusplus
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#endif |