AttachmentsController.java

package com.venky.swf.plugins.attachment.controller;

import java.util.List;

import com.venky.core.date.DateUtils;
import com.venky.swf.controller.ModelController;
import com.venky.swf.exceptions.AccessDeniedException;
import com.venky.swf.path.Path;
import com.venky.swf.plugins.attachment.db.model.Attachment;
import com.venky.swf.sql.Expression;
import com.venky.swf.sql.Operator;
import com.venky.swf.sql.Select;
import com.venky.swf.views.View;

public class AttachmentsController extends ModelController<Attachment>{

	public AttachmentsController(Path path) {
		super(path);
	}
	
	public View view(String contentFileName){
		List<Attachment> attachements = new Select().from(Attachment.class).where(new Expression(getReflector().getPool(),"ATTACHMENT_CONTENT_NAME",Operator.EQ,contentFileName)).execute();
		if (attachements.size() == 1){
	        getPath().getResponse().setDateHeader("Expires", DateUtils.addHours(System.currentTimeMillis(), 24*365*15));
			return super.view(attachements.get(0).getId());
		}
		throw new AccessDeniedException();
	}

}