/*

  * Copyright 2011 The Kuali Foundation

  *

  * Licensed under the Educational Community License, Version 1.0 (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.opensource.org/licenses/ecl1.php

  *

  * 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.rice.kew.impl.note;

 import java.sql.Timestamp;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;

 import org.kuali.rice.kew.api.note.Note;

 import org.kuali.rice.kew.api.note.NoteService;

 import org.kuali.rice.kew.notes.dao.NoteDAO;

 /**

  * TODO 

  * 

  * @author Kuali Rice Team (rice.collab@kuali.org)

  *

  */

 public class NoteServiceImpl implements NoteService {

         private NoteDAO noteDao;

         @Override

         public List<Note> getNotes(String documentId) {

                 if (StringUtils.isBlank(documentId)) {

                         throw new RiceIllegalArgumentException("documentId was null or blank");

                 }

                 List<org.kuali.rice.kew.notes.Note> noteBos = getNoteDao().getNotesByDocumentId(documentId);

                 if (noteBos == null) {

                         return Collections.emptyList();

                 }

                 List<Note> notes = new ArrayList<Note>();

                 for (org.kuali.rice.kew.notes.Note noteBo : noteBos) {

                         notes.add(org.kuali.rice.kew.notes.Note.to(noteBo));

                 }

                 return Collections.unmodifiableList(notes);

         }

         @Override

         public Note getNote(String noteId) {

                 if (StringUtils.isBlank(noteId)) {

                         throw new RiceIllegalArgumentException("noteId was null or blank");

                 }

                 org.kuali.rice.kew.notes.Note noteBo = getNoteDao().getNoteByNoteId(noteId);

                 return org.kuali.rice.kew.notes.Note.to(noteBo);

         }

         @Override

         public Note createNote(Note note) {

                 if (note == null) {

                         throw new RiceIllegalArgumentException("note was null");

                 }

                 if (note.getId() != null) {

                         throw new RiceIllegalArgumentException("Attempted to create a note that already has an id assigned, id must be null upon creation");

                 }

                 if (note.getVersionNumber() != null) {

                         throw new RiceIllegalArgumentException("Attempted to create a note that already has a version number assigned, version number must be null upon creation");

                 }

                 org.kuali.rice.kew.notes.Note noteBo = org.kuali.rice.kew.notes.Note.from(note);

                 if (noteBo.getNoteCreateDate() == null) {

                         noteBo.setNoteCreateDate(new Timestamp(System.currentTimeMillis()));

                 }

                 getNoteDao().saveNote(noteBo);

                 return org.kuali.rice.kew.notes.Note.to(noteBo);

         }

         @Override

         public Note updateNote(Note note) {

                 if (note == null) {

                         throw new RiceIllegalArgumentException("note was null");

                 }

                 if (note.getId() == null) {

                         throw new RiceIllegalArgumentException("Attempted to update a note without an id, id must be present when updating");

                 }

                 if (note.getVersionNumber() == null) {

                         throw new RiceIllegalArgumentException("Attempted to update a note without a version number, version number must be present when updating");

                 }

                 if (note.getCreateDate() == null) {

                         throw new RiceIllegalArgumentException("Attempted to update a note without a create date, note must have a create date");

                 }

                 Note existingNoteBo = getNote(note.getId());

                 if (existingNoteBo == null) {

                         throw new RiceIllegalArgumentException("Attempted to udpate a note with an id for a not that does not exist: " + note.getId());

                 }

                 org.kuali.rice.kew.notes.Note noteBo = org.kuali.rice.kew.notes.Note.from(note);

                 getNoteDao().saveNote(noteBo);

                 return org.kuali.rice.kew.notes.Note.to(noteBo);

         }

         @Override

         public Note deleteNote(String noteId) {

                 if (StringUtils.isBlank(noteId)) {

                         throw new RiceIllegalArgumentException("noteId was null or blank");

                 }

                 org.kuali.rice.kew.notes.Note noteBo = getNoteDao().getNoteByNoteId(noteId);

                 if (noteBo == null) {

                         throw new RiceIllegalArgumentException("A note does not exist for the given note id: " + noteId);

                 }

                 Note deletedNote = org.kuali.rice.kew.notes.Note.to(noteBo);

                 getNoteDao().deleteNote(noteBo);

                 return deletedNote;

         }

         public void setNoteDao(NoteDAO noteDao) {

                 this.noteDao = noteDao;

         }

         public NoteDAO getNoteDao() {

                 return noteDao;

         }

 }