FileValidationProvider.java

/**
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/ 
* 
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations under
* the License.
* 
* The Original Code is OpenELIS code.
* 
* Copyright (C) The Minnesota Department of Health.  All Rights Reserved.
*/
package us.mn.state.health.lims.common.provider.validation;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import us.mn.state.health.lims.common.exception.LIMSRuntimeException;
import us.mn.state.health.lims.common.servlet.validation.AjaxServlet;
import us.mn.state.health.lims.common.util.StringUtil;
import us.mn.state.health.lims.common.log.LogEvent;
import us.mn.state.health.lims.samplepdf.dao.SamplePdfDAO;
import us.mn.state.health.lims.samplepdf.daoimpl.SamplePdfDAOImpl;

public class FileValidationProvider extends BaseValidationProvider {
	int indentLevel = -1;
	public FileValidationProvider() {
		super();
	}

	public FileValidationProvider(AjaxServlet ajaxServlet) {
		this.ajaxServlet = ajaxServlet;
	}

	public void processRequest(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		
		// get id from request
		String targetId = (String) request.getParameter("id");
		String formField = (String) request.getParameter("field");
		String result = validate(targetId);
		ajaxServlet.sendData(formField, result, request, response);
	}

	public String validate(String targetId) throws LIMSRuntimeException {
        String msg = INVALID;
        boolean isFound = false;
        if (!StringUtil.isNullorNill(targetId)) {
            try { 
            	int x = Integer.parseInt(targetId);
				SamplePdfDAO samplePdfDAO = new SamplePdfDAOImpl();
				isFound = samplePdfDAO.isAccessionNumberFound(x);
				if ( isFound )
					msg = VALID;
            } catch ( NullPointerException npe ) {
                //bugzilla 2154 
			    LogEvent.logError("FileValidationProvider","validate()",npe.toString());
                msg = INVALID;
            }        
		} else {
			msg = VALID;
		}        
		return msg;
	}
}