/*
    * Copyright (C) 2003-2012 David E. Berry
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
    *
    * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
   *
   * A copy of the GNU Lesser General Public License may also be found at
   * http://www.gnu.org/licenses/lgpl.txt
   */
  package org.synchronoss.cpo.meta.domain;
  
  import org.slf4j.*;
  import org.synchronoss.cpo.*;
  import org.synchronoss.cpo.helper.ExceptionHelper;
  import org.synchronoss.cpo.meta.CpoMetaDescriptor;
  import org.synchronoss.cpo.meta.bean.CpoClassBean;
  
  import java.util.*;
  import org.synchronoss.cpo.helper.CpoClassLoader;
  
  public abstract class CpoClass extends CpoClassBean implements Comparable<CpoClass>, MetaDFVisitable {
  
    private static final Logger logger = LoggerFactory.getLogger(CpoClass.class);
    private Class<?> metaClass = null;
    /**
     * javaMap contains a Map of CpoAttribute Objects the key is the javaName of the attribute
     */
    private Map<String, CpoAttribute> javaMap = new HashMap<String, CpoAttribute>();
    /**
     * dataMap contains a Map of CpoAttribute Objects the key is the dataName of the attribute
     */
    private Map<String, CpoAttribute> dataMap = new HashMap<String, CpoAttribute>();
    /**
     * functionGroups is a hashMap that contains a hashMap of CpoFunctionGroup Lists that are used by this object to persist and
     * retrieve it into a datasource.
     */
    private Map<String, CpoFunctionGroup> functionGroups = new HashMap<String, CpoFunctionGroup>();
  
    public CpoClass() {
    }
  
    public Class<?> getMetaClass() {
      return metaClass;
    }
  
    public abstract void addDataNameToMap(String dataName, CpoAttribute cpoAttribute);
    
    public abstract void removeDataNameFromMap(String dataName);
    
    public abstract CpoAttribute getAttributeData(String dataName);
  
    protected Map<String, CpoAttribute> getDataMap() {
      return dataMap;
    }
  
    public void addAttribute(CpoAttribute cpoAttribute) {
      if (cpoAttribute != null) {
        logger.debug("Adding Attribute: " + cpoAttribute.getJavaName() + ":" + cpoAttribute.getDataName());
        javaMap.put(cpoAttribute.getJavaName(), cpoAttribute);
        addDataNameToMap(cpoAttribute.getDataName(), cpoAttribute);
      }
    }
  
    public void removeAttribute(CpoAttribute cpoAttribute) {
      if (cpoAttribute != null) {
        logger.debug("Removing Attribute: " + cpoAttribute.getJavaName() + ":" + cpoAttribute.getDataName());
        javaMap.remove(cpoAttribute.getJavaName());
        removeDataNameFromMap(cpoAttribute.getDataName());
      }
    }
  
    public Map<String, CpoFunctionGroup> getFunctionGroups() {
      return this.functionGroups;
    }
  
    public CpoFunctionGroup getFunctionGroup(String groupType, String groupName) throws CpoException {
      String key = buildFunctionGroupKey(groupType, groupName);
      CpoFunctionGroup group = functionGroups.get(key);
      if (group == null) {
        throw new CpoException("Function Group Not Found: " + groupType + ":" + groupName);
      }
      return group;
    }
  
    public CpoFunctionGroup addFunctionGroup(CpoFunctionGroup group) {
      if (group == null) {
        return null;
      }
 
     String key = buildFunctionGroupKey(group.getType(), group.getName());
     logger.debug("Adding function group: " + key);
     return this.functionGroups.put(key, group);
   }
 
   public void removeFunctionGroup(CpoFunctionGroup group) {
     if (group != null) {
       String key = buildFunctionGroupKey(group.getType(), group.getName());
       functionGroups.remove(key);
     }
   }
 
   private String buildFunctionGroupKey(String groupType, String groupName) {
     StringBuilder builder = new StringBuilder();
     if (groupType != null) {
       builder.append(groupType);
     }
     builder.append("@");
     if (groupName != null) {
       builder.append(groupName);
     }
     return builder.toString();
   }
 
   @Override
   public int compareTo(CpoClass anotherCpoClass) {
     return getName().compareTo(anotherCpoClass.getName());
   }
 
   @Override
   public void acceptMetaDFVisitor(MetaVisitor visitor) {
     visitor.visit(this);
 
     // visit attributes -- need these sorted
     TreeMap<String, CpoAttribute> attributeMap = new TreeMap<String, CpoAttribute>(javaMap);
     for (CpoAttribute cpoAttribute : attributeMap.values()) {
       visitor.visit(cpoAttribute);
     }
 
     // visit function groups -- need these sorted
     TreeMap<String, CpoFunctionGroup> functionGroupMap = new TreeMap<String, CpoFunctionGroup>(functionGroups);
     for (CpoFunctionGroup cpoFunctionGroup : functionGroupMap.values()) {
       visitor.visit(cpoFunctionGroup);
 
       // visit the functions
       List<CpoFunction> functions = cpoFunctionGroup.getFunctions();
       if (functions != null) {
         for (CpoFunction cpoFunction : functions) {
           visitor.visit(cpoFunction);
 
           // visit the arguments
           List<CpoArgument> arguments = cpoFunction.getArguments();
           if (arguments != null) {
             for (CpoArgument cpoArgument : arguments) {
               visitor.visit(cpoArgument);
             }
           }
         }
       }
     }
   }
 
   synchronized public void loadRunTimeInfo(CpoMetaDescriptor metaDescriptor) throws CpoException {
     if (metaClass==null) {
       try {
         logger.debug("Loading runtimeinfo for "+getName());
         metaClass = CpoClassLoader.forName(getName());
       } catch (ClassNotFoundException cnfe) {
         throw new CpoException("Class not found: " + getName() + ": " + ExceptionHelper.getLocalizedMessage(cnfe));
       }
 
       for (CpoAttribute attribute : javaMap.values()) {
         attribute.loadRunTimeInfo(metaDescriptor, this);
       }
       logger.debug("Loaded runtimeinfo for "+getName());
     }
   }
 
   public CpoAttribute getAttributeJava(String javaName) {
     if (javaName == null) {
       return null;
     }
     return javaMap.get(javaName);
   }
 
   @Override
   public String toString() {
     return this.getName();
   }
 
   public String toStringFull() {
     return super.toString();
   }
   
   public void emptyMaps() {
     javaMap.clear();
     dataMap.clear();
     functionGroups.clear();
   }
 }