Something

#ifndef MyProcessing_hxx
#define MyProcessing_hxx

#include <CLAM/InPort.hxx>
#include <CLAM/OutPort.hxx>
#include <CLAM/Processing.hxx>
#include <CLAM/NullProcessingConfig.hxx>

// Those two configuration types could be the ones you choose.
// Your own ones or any type already in CLAM.
#include "SpectralPeakArray.hxx"
#include "XMLStorage.hxx"

class MyProcessing : public CLAM::Processing
{ 
	CLAM::InPort<CLAM::SpectralPeakArray> mIn;
	typedef CLAM::NullProcessingConfig Config;
public:
	const char* GetClassName() const { return "MyProcessing"; }
	MyProcessing(const Config & config=Config()) 
		: mIn("My Input", this)
		 
	{
		Configure( config );
	}
 
	~MyProcessing(); {}

	// Configuration to the minimal expression
	bool ConcreteConfigure(const CLAM::ProcessingConfig&)
	{
		return true; // I got proper configuration
	}
	const ProcessingConfig& GetConfig() const
	{
		static Config config;
		return config;
	}
	
	bool Do()
	{
		bool result = Do(mIn.GetData()); 
		// Tell the ports this is done
		mIn.Consume();
		return result;
	}

	bool Do(const CLAM::SpectralPeakArray& in)
	{
		// Your implementation
	}
};
#endif // MyProcessing_hxx