A320 FLT CREW REPORTS COMPRESSOR STALL AT FL360 FOLLOWED SHORTLY BY ENG OIL FILTER CLOG ECAM. EMERGENCY IS DECLARED AND FLIGHT DIVERTS TO NEAREST SUITABLE ARPT WITH ENGINE AT IDLE.

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WE WERE ESTABLISHED IN CRUISE APPROX 80 MI W OF ZZZ WHEN WE EXPERIENCED A MUFFLED BANG WITH ASSOCIATED YAW. WE REALIZED WE HAD A COMPRESSOR STALL ON #2 ENG WITH AN ENG STALL ECAM. EPR DECREASED AND RETURNED TO NORMAL. APPROX 10 SECONDS LATER RECEIVED ENG #2 OIL FILTER CLOG ON ECAM. FLT ATTENDANTS CALLED FROM CABIN WITH CONCERNS OF LOUD NOISE AND ASSOCIATED SMELL AND HAZE IN CABIN. WE THEN REDUCED #2 ENG TO IDLE; SHUT OFF ENG #2 BLEED; XBLEED VALVE OPEN; RECIRCULATION FANS OFF WITH ASSOCIATED PACK HIGH FLOW. REQUESTED FO TO DO ECAM WHILE I FLEW PLANE AND TOOK CARE OF RADIO WORK. HE DID ENG STALL AND ENG OIL FILTER CLOG ECAM WITH REF TO FLT MANUAL. DECLARED EMER AND ASKED FOR CLRNC TO ZZZ. THIS WAS MOST SUITABLE ARPT IN POINT OF TIME. MAINTAINED #2 ENG AT IDLE THRUST AS ALL PARAMETERS WERE NORMAL; ENG #2 OIL FILTER CLOG STAYED ON CONTINUOUSLY. ADVISED DISPATCH OF EMER AND CHKED WITH FLT ATTENDANT THAT CABIN AIR QUALITY WAS NOW NORMAL AND IT WAS. PLANNED CABIN ADVISORY AND INDICATED WE HAD 20 MINS TO TOUCHDOWN. THEN MADE ANNOUNCEMENT TO PAX OF OUR PROB AND PLAN. PROCEEDED TO ZZZ AND MADE NORMAL APCH AND LNDG. SHUT DOWN #2 ENG AFTER DEPARTING ARR RWY. EMER EQUIP INSPECTED ENG AND INDICATED SMOKE FROM ENG AS WE TURNED OFF RWY. DISSIPATED QUICKLY AFTER ENG SHUT DOWN. TAXIED TO GATE TO DEPLANED PAX. ALL INDICATIONS NORMAL AS WE TAXIED BACK TO GATE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: POST FLIGHT INSPECTION BY MAINTENANCE REVEALED THAT THE OIL FILTER WAS CLOGGED WITH METAL FRAGMENTS ALTHOUGH THE ENGINE CONTINUED TO RUN AFTER LANDING AND ROTATE FREELY AFTER SHUT DOWN. EXACTLY HOW THE COMPRESSOR STALL AND THE METAL FRAGMENTS ARE RELATED IS UNKNOWN. THE V2500 ENGINE WAS REPLACED BEFORE THE ACFT WAS RELEASED FOR FLIGHT.