/**

  * Copyright 2010 The Kuali Foundation Licensed under the

  * Educational Community 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.osedu.org/licenses/ECL-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.kuali.student.core.messages.service.impl;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.HashSet;

 import java.util.Iterator;

 import java.util.List;

 import java.util.Map;

 import java.util.Set;

 import org.apache.log4j.Logger;

 import org.kuali.student.common.messages.dto.LocaleKeyList;

 import org.kuali.student.common.messages.dto.Message;

 import org.kuali.student.common.messages.dto.MessageGroupKeyList;

 import org.kuali.student.common.messages.dto.MessageList;

 import org.kuali.student.common.messages.service.MessageService;

 import org.kuali.student.core.messages.entity.MessageEntity;

 import org.springframework.beans.factory.xml.XmlBeanFactory;

 import org.springframework.core.io.ClassPathResource;

 import org.springframework.core.io.FileSystemResource;

 import org.springframework.core.io.Resource;

 /**

  * This is poor man's implementation of a mock messages service to be used for

  * UI testing, it will load gwt-messages.xml configured via the set method.

  * 

  * @author Kuali Student Team

  * 

  */

 public class MessageServiceMock implements MessageService {

         final Logger logger = Logger.getLogger(MessageServiceMock.class);

         List<String> messageFiles;

         Map<String, LocaleMessages> messages = new HashMap<String, LocaleMessages>();

         private static class LocaleMessages {

                 Map<String, Map<String, String>> localeMessages = new HashMap<String, Map<String, String>>();

                 public Map<String, String> getMessages(String groupKey) {

                         return localeMessages.get(groupKey);

                 }

                 public Set<String> getGroups() {

                         return localeMessages.keySet();

                 }

                 public void putMessage(String groupKey, String messageKey,

                                 String message) {

                         Map<String, String> groupMessages;

                         groupMessages = localeMessages.get(groupKey);

                         if (groupMessages == null) {

                                 groupMessages = new HashMap<String, String>();

                         }

                         groupMessages.put(messageKey, message);

                         this.localeMessages.put(groupKey, groupMessages);

                 }

         }

         private void putMessage(String locale, String group, String key,

                         String value) {

                 LocaleMessages localeMessages = messages.get(locale);

                 if (localeMessages == null) {

                         localeMessages = new LocaleMessages();

                 }

                 localeMessages.putMessage(group, key, value);

                 this.messages.put(locale, localeMessages);

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#addMessage(org.kuali.student.common.messages.dto.Message)

          */

         @Override

         public Message addMessage(Message messageInfo) {

                 LocaleMessages localeMessages = this.messages.get(messageInfo

                                 .getLocale());

                 if (localeMessages == null) {

                         localeMessages = new LocaleMessages();

                 }

                 localeMessages.putMessage(messageInfo.getGroupName(), messageInfo

                                 .getId(), messageInfo.getValue());

                 this.messages.put(messageInfo.getLocale(), localeMessages);

                 return messageInfo;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#getLocales()

          */

         @Override

         public LocaleKeyList getLocales() {

                 LocaleKeyList locales = new LocaleKeyList();

                 if (!this.messages.isEmpty()) {

                         locales.setLocales(new ArrayList<String>(this.messages.keySet()));

                 }

                 return locales;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#getMessage(java.lang.String,

          *      java.lang.String, java.lang.String)

          */

         @Override

         public Message getMessage(String localeKey, String messageGroupKey,

                         String messageKey) {

                 Message m = null;

                 m = new Message();

                 m.setGroupName(messageGroupKey);

                 m.setLocale(localeKey);

                 m.setId(messageKey);

                 m.setValue(this.messages.get(localeKey).getMessages(messageGroupKey)

                                 .get(messageKey));

                 return m;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#getMessageGroups()

          */

         @Override

         public MessageGroupKeyList getMessageGroups() {

                 MessageGroupKeyList groupKeys = new MessageGroupKeyList();

                 Iterator<String> i = messages.keySet().iterator();

                 Set<String> groupKeySet = new HashSet<String>();

                 while (i.hasNext()) {

                         String locale = i.next();

                         groupKeySet.addAll(messages.get(locale).getGroups());

                 }

                 groupKeys.setMessageGroupKeys(new ArrayList<String>(groupKeySet));

                 return groupKeys;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#getMessages(java.lang.String,

          *      java.lang.String)

          */

         @Override

         public MessageList getMessages(String localeKey, String messageGroupKey) {

                 MessageList messageList = new MessageList();

                 Map<String, String> groupMessages = ((LocaleMessages) messages

                                 .get(localeKey)).getMessages(messageGroupKey);

                 List<Message> messageArrayList = new ArrayList<Message>();

                 Iterator<String> i = groupMessages.keySet().iterator();

                 while (i.hasNext()) {

                         String id = i.next();

                         Message m = new Message();

                         m.setGroupName(messageGroupKey);

                         m.setId(id);

                         m.setValue(groupMessages.get(id));

                         m.setLocale(localeKey);

                         messageArrayList.add(m);

                 }

                 messageList.setMessages(messageArrayList);

                 return messageList;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#getMessagesByGroups(java.lang.String,

          *      org.kuali.student.common.messages.dto.MessageGroupKeyList)

          */

         @Override

         public MessageList getMessagesByGroups(String localeKey,

                         MessageGroupKeyList messageGroupKeyList) {

                 MessageList groupMessageList = new MessageList();

                 List<Message> messageArrayList = new ArrayList<Message>();

                 for (String groupKey : messageGroupKeyList.getMessageGroupKeys()) {

                         MessageList messageList = getMessages(localeKey, groupKey);

                         messageArrayList.addAll(messageList.getMessages());

                 }

                 groupMessageList.setMessages(messageArrayList);

                 return groupMessageList;

         }

         /**

          * @see org.kuali.student.common.messages.service.MessageService#updateMessage(java.lang.String,

          *      java.lang.String, java.lang.String,

          *      org.kuali.student.common.messages.dto.Message)

          */

         @Override

         public Message updateMessage(String localeKey, String messageGroupKey,

                         String messageKey, Message messageInfo) {

                 if (getMessage(localeKey, messageGroupKey, messageKey) != null) {

                         putMessage(localeKey, messageGroupKey, messageKey, messageInfo

                                         .getValue());

                 }

                 return messageInfo;

         }

         public List<String> getMessageFiles() {

                 return messageFiles;

         }

         public void setMessageFiles(List<String> messageFiles) {

                 this.messageFiles = messageFiles;

                 // bootstrap the data

                 logger.debug("Bootstrap messages started.");

                 if (this.messages.isEmpty()) {

                         for (String messageFileName : messageFiles) {

                                 Resource res;

                                 try {

                                         if (messageFileName.startsWith("classpath:")) {

                                                 res = new ClassPathResource(messageFileName

                                                                 .substring("classpath:".length()));

                                         } else {

                                                 res = new FileSystemResource(messageFileName);

                                         }

                                 } catch (Exception e) {

                                         throw new RuntimeException(e);

                                 }

                                 XmlBeanFactory factory = new XmlBeanFactory(res);

                                 try {

                                         Object[] beanArray = factory.getBeansOfType(

                                                         MessageEntity.class).values().toArray();

                                         for (Object o : beanArray) {

                                                 MessageEntity m = (MessageEntity) o;

                                                 putMessage(m.getLocale(), m.getGroupName(), m.getMessageId(),

                                                                 m.getValue());

                                         }

                                 } catch (Exception e) {

                                         logger.debug(e);

                                 }

                         }

                 }

                 logger.debug("Bootstrap messages finished.");

         }

 }