Deleting content and related file field in dotCMS

Test.java

package com.aquent;

import java.util.List;

import com.dotmarketing.business.APILocator;
import com.dotmarketing.business.UserAPI;
import com.dotmarketing.db.HibernateUtil;
import com.dotmarketing.portlets.contentlet.business.ContentletAPI;
import com.dotmarketing.portlets.contentlet.model.Contentlet;
import com.dotmarketing.util.Logger;
import com.liferay.portal.model.User;

public class Test {
	
	private ContentletAPI conAPI  = APILocator.getContentletAPI();
	private UserAPI userAPI       = APILocator.getUserAPI();
	
	public void deleteContentletAndFile(String idToDelete) {
		// First let's get the contentlet
		String query = "+identifier:"+idToDelete;
		Contentlet con;
		User sysUser;
		
		try {
			sysUser = userAPI.getSystemUser();
			List<Contentlet> cons = conAPI.search(query, 1, 0, "modDate", sysUser, false);
			if(cons.size() > 0) {
				con = cons.get(0);
			} else {
				Logger.error(this, "Contentlet with identifier: "+idToDelete+" not found");
				return;
			}
		} catch(Exception e) {
			Logger.error(this, "Exception searching for contentlet with identifier: "+idToDelete, e);
			return;
		}
		
		// Now get the file field's value
		// I am not 100% sure if this returns an inode or identifier. I think inode.
		// Or it might be something else entirely, I did not test this
		String fileInode = con.getStringProperty("fileFieldVarName");
		Contentlet fileCon;
		String fileQuery = "+(inode:"+fileInode+" identifier:"+fileInode+")";
		try {
			List<Contentlet> cons = conAPI.search(fileQuery, 1, 0, "modDate", sysUser, false);
			if(cons.size() > 0) {
				fileCon = cons.get(0);
			} else {
				Logger.error(this, "File with identifier or inode: "+fileInode+" not found");
				return;
			}
		} catch(Exception e) {
			Logger.error(this, "Exception searching for file with inode or identifier: "+fileInode, e);
			return;
		}
		
		// Now we can delete both
		try {
			HibernateUtil.startTransaction();
			conAPI.delete(fileCon, sysUser, false);
			conAPI.delete(con, sysUser, false);
			HibernateUtil.commitTransaction();
		} catch (Exception e) {
			Logger.error(this, "Exception trying to delete the content with identifier "+idToDelete
					+" or file with inode or identifier "+fileInode, e);
			
			try {
				HibernateUtil.rollbackTransaction();
			} catch (Exception e1) {
				Logger.error(this, "Exception rolling back transaction", e1);
			}
			
			return;
		}
		
		Logger.info(this, "Content with identifier "+idToDelete+" and file with inode or identifier: "
				+fileInode+" has been deleted");
	}
}