package frame.file.office;

import java.util.ArrayList;
import java.util.List;

import frame.expression.VariantContext;
import frame.file.IFileContext;
import frame.file.UploadResult;

public abstract class IOProcessor {
	private List<IOHandler> ioHandlers;

    public IOProcessor() {
        ioHandlers = new ArrayList<IOHandler>();
    }

    public void execHandlers(UploadResult result, String eventCode) throws Exception {
    	IFileContext context = createContext(result);

    	 for(IOHandler handler : ioHandlers) {
            if (handler.equalEvent(eventCode)) {
                handler.exec(result, context);
            }
        }
    }

    public void execHandlers(UploadResult result) throws Exception {
    	IFileContext context = createContext(result);

        for(IOHandler handler : ioHandlers) {
            result.addMessage("进行数据处理：" + handler.getSqlName());
            handler.exec(result, context);
        }
    }

    public void addHandler(IOHandler handler) {
        ioHandlers.add(handler);
    }
    
    public abstract IFileContext createContext(UploadResult result);
}