package org.kuali.student.common.dictionary.service.impl;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import org.apache.log4j.Logger;

 import org.kuali.student.common.dictionary.dto.ObjectStructureDefinition;

 import org.kuali.student.common.dictionary.service.DictionaryService;

 import org.springframework.context.ApplicationContext;

 import org.springframework.context.ConfigurableApplicationContext;

 import org.springframework.context.support.ClassPathXmlApplicationContext;

 import org.springframework.util.StringUtils;

 public class DictionaryServiceImpl implements DictionaryService{

         private String[] dictionaryContext;

         private Map<String, ObjectStructureDefinition> objectStructures;

     final static Logger LOG = Logger.getLogger(DictionaryServiceImpl.class);

         public DictionaryServiceImpl() {

                 super();

         }

         public DictionaryServiceImpl(String dictionaryContext) {

                 super();

                 String[] locations = StringUtils.tokenizeToStringArray(dictionaryContext, ConfigurableApplicationContext.CONFIG_LOCATION_DELIMITERS);

                 this.dictionaryContext = locations;

                 init();

         }

         public DictionaryServiceImpl(String[] dictionaryContext) {

                 super();

                 this.dictionaryContext = dictionaryContext;

                 init();

         }

         @SuppressWarnings("unchecked")

         public synchronized void init() {

                 ApplicationContext ac = new ClassPathXmlApplicationContext(dictionaryContext);

                 Map<String, ObjectStructureDefinition> beansOfType = (Map<String, ObjectStructureDefinition>) ac.getBeansOfType(ObjectStructureDefinition.class);

                 objectStructures = new HashMap<String, ObjectStructureDefinition>();

                 for (ObjectStructureDefinition objStr : beansOfType.values()){

                         if(objectStructures.containsKey(objStr.getName())){

                                 LOG.warn("There is already a dictionary structure with the name '"+objStr+"'.");

                         }

                         objectStructures.put(objStr.getName(), objStr);

                 }

         }

         @Override

         public ObjectStructureDefinition getObjectStructure(String objectTypeKey) {

                 return objectStructures.get(objectTypeKey);

         }

         @Override

         public List<String> getObjectTypes() {

                 return new ArrayList<String>(objectStructures.keySet());

         }

         public String[] getDictionaryContext() {

                 return dictionaryContext;

         }

         public void setDictionaryContext(String[] dictionaryContext) {

                 this.dictionaryContext = dictionaryContext;

         }

 }