org.jrecruiter.web.controller.BaseFormController.java Source code

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Here is the source code for org.jrecruiter.web.controller.BaseFormController.java

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/*
 * Copyright 2006-2014 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jrecruiter.web.controller;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;

import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jrecruiter.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.beans.propertyeditors.CustomNumberEditor;
import org.springframework.context.MessageSource;
import org.springframework.context.support.MessageSourceAccessor;
import org.springframework.validation.Validator;
import org.springframework.web.bind.ServletRequestDataBinder;
import org.springframework.web.bind.annotation.InitBinder;
import org.springframework.web.context.ServletContextAware;
import org.springframework.web.multipart.support.ByteArrayMultipartFileEditor;

/**
 * Implementation of <strong>SimpleFormController</strong> that contains
 * convenience methods for subclasses.  For example, getting the current
 * user and saving messages/errors. This class is intended to
 * be a base class for all Form controllers.
 *
 * <p><a href="BaseFormController.java.html"><i>View Source</i></a></p>
 *
 * @author <a href="mailto:matt@raibledesigns.com">Matt Raible</a>
 */
public class BaseFormController implements ServletContextAware {
    public static final String MESSAGES_KEY = "successMessages";
    public static final String ERRORS_MESSAGES_KEY = "errors";
    protected final transient Log log = LogFactory.getLog(getClass());
    private UserService userService = null;

    protected String cancelView;
    protected String successView;

    private MessageSourceAccessor messages;
    private ServletContext servletContext;

    @Autowired(required = false)
    Validator validator;

    @Autowired
    public void setMessages(MessageSource messageSource) {
        messages = new MessageSourceAccessor(messageSource);
    }

    @Autowired
    public void setUserService(UserService userService) {
        this.userService = userService;
    }

    public UserService getUserService() {
        return this.userService;
    }

    @SuppressWarnings("unchecked")
    public void saveError(HttpServletRequest request, String error) {
        List errors = (List) request.getSession().getAttribute(ERRORS_MESSAGES_KEY);
        if (errors == null) {
            errors = new ArrayList();
        }
        errors.add(error);
        request.getSession().setAttribute(ERRORS_MESSAGES_KEY, errors);
    }

    @SuppressWarnings("unchecked")
    public void saveMessage(HttpServletRequest request, String msg) {
        List messages = (List) request.getSession().getAttribute(MESSAGES_KEY);

        if (messages == null) {
            messages = new ArrayList();
        }

        messages.add(msg);
        request.getSession().setAttribute(MESSAGES_KEY, messages);
    }

    /**
     * Convenience method for getting a i18n key's value.  Calling
     * getMessageSourceAccessor() is used because the RequestContext variable
     * is not set in unit tests b/c there's no DispatchServlet Request.
     *
     * @param msgKey
     * @param locale the current locale
     * @return
     */
    public String getText(String msgKey, Locale locale) {
        return messages.getMessage(msgKey, locale);
    }

    /**
     * Convenient method for getting a i18n key's value with a single
     * string argument.
     *
     * @param msgKey
     * @param arg
     * @param locale the current locale
     * @return
     */
    public String getText(String msgKey, String arg, Locale locale) {
        return getText(msgKey, new Object[] { arg }, locale);
    }

    /**
     * Convenience method for getting a i18n key's value with arguments.
     *
     * @param msgKey
     * @param args
     * @param locale the current locale
     * @return
     */
    public String getText(String msgKey, Object[] args, Locale locale) {
        return messages.getMessage(msgKey, args, locale);
    }

    /**
     * Set up a custom property editor for converting form inputs to real objects
     * @param request the current request
     * @param binder the data binder
     */
    @InitBinder
    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) {
        binder.registerCustomEditor(Integer.class, null, new CustomNumberEditor(Integer.class, null, true));
        binder.registerCustomEditor(Long.class, null, new CustomNumberEditor(Long.class, null, true));
        binder.registerCustomEditor(byte[].class, new ByteArrayMultipartFileEditor());
        SimpleDateFormat dateFormat = new SimpleDateFormat(getText("date.format", request.getLocale()));
        dateFormat.setLenient(false);
        binder.registerCustomEditor(Date.class, null, new CustomDateEditor(dateFormat, true));
    }

    public void setServletContext(ServletContext servletContext) {
        this.servletContext = servletContext;
    }

    protected ServletContext getServletContext() {
        return servletContext;
    }
}