/*
    * Copyright 2001-2008 The Apache Software Foundation.
    * 
    * Licensed under the Apache 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.apache.org/licenses/LICENSE-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.apache.juddi.validation;
  
  import java.util.List;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  import javax.persistence.EntityManager;
  import javax.persistence.EntityTransaction;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.juddi.api_v3.ValidValues;
  import org.apache.juddi.config.PersistenceManager;
  import org.apache.juddi.mapping.MappingModelToApi;
  import org.apache.juddi.model.Tmodel;
  import org.apache.juddi.model.UddiEntityPublisher;
  import org.apache.juddi.v3.error.ErrorMessage;
  import org.apache.juddi.v3.error.ValueNotAllowedException;
  import org.uddi.api_v3.TModel;
  import org.uddi.v3_service.DispositionReportFaultMessage;
   
  /**
   * @author <a href="mailto:jfaath@apache.org">Jeff Faath</a>
   * @author <a href="mailto:alexoree@apache.org">Alex O'Ree</a>
   */
  public class ValidateValueSetValidation extends ValidateUDDIApi {
  
          private static Log log = LogFactory.getLog(ValidateValueSetValidation.class);
  
          public ValidateValueSetValidation(UddiEntityPublisher publisher) {
                  super(publisher);
          }
  
          /**
           * called from jUDDI API SetAllValidValues
           *
           * @param values
           */
          public void validateSetAllValidValues(List<ValidValues> values) throws ValueNotAllowedException {
                  if (values == null || values.isEmpty()) {
                          throw new ValueNotAllowedException(new ErrorMessage("errors.NullInput"));
                  }
  
                  for (int i = 0; i < values.size(); i++) {
                          String key = values.get(i).getTModekKey();
                          if (key == null || key.trim().length() == 0) {
                                  throw new ValueNotAllowedException(new ErrorMessage("errors.NullInput", "tModel key"));
                          }
                          //ensure tmodel exists
                          Tmodel tm = GetTModel_MODEL_IfExists(values.get(i).getTModekKey());
                          
                          if (tm == null) {
                                  throw new ValueNotAllowedException(new ErrorMessage("errors.invalidkey.TModelNotFound", key));
                          }
                          //ensure caller owns the tModel
                          if (!this.publisher.isOwner(tm)) {
                                  throw new ValueNotAllowedException(new ErrorMessage("errors.usermismatch.InvalidOwner", key ));
                          }
  
                          //if we have no values, it may be to simply unset any values
  
                          /*//validate that we have values
                           if (values.get(i).getValue() == null || values.get(i).getValue().isEmpty()) {
                           throw new ValueNotAllowedException(new ErrorMessage("errors.NullInput", "value[]"));
                           }
                           //and that they aren't empty
                           for (int k = 0; k < values.get(i).getValue().size(); k++) {
                           if (values.get(i).getValue().get(k) == null || values.get(i).getValue().get(k).trim().length() == 0) {
                           throw new ValueNotAllowedException(new ErrorMessage("errors.NullInput", "value[" + i + "].value"));
                           }
                           }*/
                  }
          }
  
          /**
           * return the publisher
           *
           * @param tmodelKey
           * @return
           * @throws ValueNotAllowedException
           */
          public static TModel GetTModel_API_IfExists(String tmodelKey) throws ValueNotAllowedException {
                  EntityManager em = PersistenceManager.getEntityManager();
  
                  TModel apitmodel = null;
                 if (em == null) {
                         //this is normally the Install class firing up
                         log.warn(new ErrorMessage("errors.tmodel.ReferentialIntegrityNullEM"));
                         return null;
                 } else {
 
 
                         EntityTransaction tx = em.getTransaction();
                         try {
                                 Tmodel modelTModel = null;
                                 tx.begin();
                                 modelTModel = em.find(org.apache.juddi.model.Tmodel.class, tmodelKey);
                                 if (modelTModel != null) {
                                         apitmodel = new TModel();
                                         try {
                                                 MappingModelToApi.mapTModel(modelTModel, apitmodel);
                                         } catch (DispositionReportFaultMessage ex) {
                                                 log.warn(ex);
                                                 apitmodel=null;
                                         }
 
 
                                 }
                                 tx.commit();
                         } finally {
                                 if (tx.isActive()) {
                                         tx.rollback();
                                 }
                                 em.close();
                         }
 
                 }
                 return apitmodel;
         }
         
         
         public static Tmodel GetTModel_MODEL_IfExists(String tmodelKey) throws ValueNotAllowedException {
                 EntityManager em = PersistenceManager.getEntityManager();
 
                 Tmodel model = null;
                 if (em == null) {
                         //this is normally the Install class firing up
                         log.warn(new ErrorMessage("errors.tmodel.ReferentialIntegrityNullEM"));
                         return null;
                 } else {
 
 
                         EntityTransaction tx = em.getTransaction();
                         try {
                                 
                                 tx.begin();
                                 model = em.find(org.apache.juddi.model.Tmodel.class, tmodelKey);
                                 tx.commit();
                         } finally {
                                 if (tx.isActive()) {
                                         tx.rollback();
                                 }
                                 em.close();
                         }
 
                 }
                 return model;
         }
 }