/******************************************************************************

  * PicManCommonImpl.java - Implement the Business Interface common to the PicMan apps.

  * 

  * PicMan - The BuckoSoft Picture Manager in Java

  * Copyright(c) 2008 - Dick Balaska

  * 

  */

 package com.buckosoft.PicMan.business.common;

 import java.util.LinkedList;

 import java.util.List;

 import java.util.ListIterator;

 import org.apache.commons.logging.Log;

 import org.apache.commons.logging.LogFactory;

 import com.buckosoft.PicMan.business.SetChangedListener;

 import com.buckosoft.PicMan.db.DatabaseFacade;

 import com.buckosoft.PicMan.domain.SetSize;

 import com.buckosoft.PicMan.domain.SyncLogEntry;

 /** Implement the Business Interface common to the PicMan apps.

  * @author Dick Balaska

  * @since 2008/11/22

  * @see <a href="http://cvs.buckosoft.com/Projects/java/PicMan/PicManService/src/com/buckosoft/PicMan/business/common/PicManCommonImpl.java">PicManCommonImpl.java</a>

  */

 public class PicManCommonImpl implements PicManCommonFacade {

         private final Log log = LogFactory.getLog(getClass());

         protected        DatabaseFacade        dbf;

         private        LinkedList<Throwable>                errorLog = new LinkedList<Throwable>();

         private        LinkedList<SyncLogEntry>        syncLog = new LinkedList<SyncLogEntry>();

         private        LinkedList<SetChangedListener>        setChangedListeners = new LinkedList<SetChangedListener>();

         /** AOP Injector to set the Database

          * @param pmdb A reference to the database

          */

         public void setPicManDatabase(DatabaseFacade pmdb) {

                 this.dbf = pmdb;

                 this.dbf.setPicManCommonFacade(this);

                 //this.dbf.setDEBUG(this.databaseDEBUG);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#addSyncToLog(com.buckosoft.PicMan.domain.SyncLogEntry)

          */

         public void addSyncToLog(SyncLogEntry sle) {

                 syncLog.addFirst(sle);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#getSyncLog()

          */

         public LinkedList<SyncLogEntry> getSyncLog() {

                 return(syncLog);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.common.PicManCommonFacade#getSyncLogMaxCount()

          */

         public int getSyncLogMaxCount() {

                 return(10);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#addError(java.lang.Exception)

          */

         public void addError(Throwable t) {

                 errorLog.add(t);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#getErrorLog()

          */

         public        List<Throwable>        getErrorLog() {

                 return(errorLog);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#emptyErrorLog()

          */

         public void        emptyErrorLog() {

                 errorLog.clear();

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#getError(int)

          */

         public Throwable getError(int index) {

                 return(errorLog.get(index));

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#addSetChangedListener(com.buckosoft.PicMan.business.SetChangedListener)

          */

         @Override

         public void addSetChangedListener(SetChangedListener setChangedListener) {

                 this.setChangedListeners.add(setChangedListener);

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#removeSetChangedListener(com.buckosoft.PicMan.business.SetChangedListener)

          */

         @Override

         public void removeSetChangedListener(SetChangedListener setChangedListener) {

                 ListIterator<SetChangedListener> iter = this.setChangedListeners.listIterator();

                 while (iter.hasNext()) {

                         SetChangedListener scl = iter.next();

                         if (scl == setChangedListener)

                                 iter.remove();

                 }

         }

         /* (non-Javadoc)

          * @see com.buckosoft.PicMan.business.PicManFacade#fireSetSizeChanged(com.buckosoft.PicMan.domain.SetSize)

          */

         @Override

         public void fireSetSizeChanged(SetSize setSize) {

                 log.info("fireSetSizeChanged: " + setSize.getSetSize());

                 for (SetChangedListener scl : this.setChangedListeners) {

                         if (setSize.getSize() == 0)

                                 this.dbf.updateSetTimestamp(setSize.getSetName());

                         else

                                 this.dbf.updateSetTimestamp(setSize.getSetSize());

                         scl.onSetChanged(setSize);

                 }

         }

 }