/*
    * 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.logging.Level;
  import java.util.logging.Logger;
  import javax.persistence.EntityManager;
  import org.apache.commons.configuration.ConfigurationException;
  import org.apache.juddi.config.AppConfig;
  import org.apache.juddi.config.Property;
  
  import org.apache.juddi.model.Subscription;
  import org.apache.juddi.model.UddiEntity;
  import org.apache.juddi.model.UddiEntityPublisher;
  import org.apache.juddi.v3.error.ErrorMessage;
  import org.apache.juddi.v3.error.UnsupportedException;
  import org.uddi.v3_service.DispositionReportFaultMessage;
  
  /**
   * @author <a href="mailto:jfaath@apache.org">Jeff Faath</a>
   */
  public abstract class ValidateUDDIApi {
  
  	protected UddiEntityPublisher publisher;
     protected String nodeID=null;
  		
     /**
      * This is used only during the install process to prevent infinite loops
      * @param publisher
      * @param nodeid 
      */
  	public ValidateUDDIApi(UddiEntityPublisher publisher, String nodeid) {
  		this.publisher = publisher;
        this.nodeID = nodeid;
  	}
     
     public ValidateUDDIApi(UddiEntityPublisher publisher) {
  		this.publisher = publisher;
        try {
           this.nodeID = AppConfig.getConfiguration().getString(Property.JUDDI_NODE_ID);
        } catch (ConfigurationException ex) {
           Logger.getLogger(ValidateUDDIApi.class.getName()).log(Level.SEVERE, "unable to get the current node id, this may cause access control problems"
                   + " and must be fixed. set " + Property.JUDDI_NODE_ID + " in juddiv3.xml", ex);
        }
  	}
  
  	public UddiEntityPublisher getPublisher() {
  		return publisher;
  	}
  
  	public void setPublisher(UddiEntityPublisher publisher) {
  		this.publisher = publisher;
  	}
  	
  	public static void unsupportedAPICall() throws DispositionReportFaultMessage {
  		throw new UnsupportedException(new ErrorMessage("errors.Unsupported"));
  	}
  	
  	public static boolean isUniqueKey(EntityManager em, String entityKey) {
  		Object obj = em.find(UddiEntity.class, entityKey);
  		if (obj != null)
  			return false;
  		
  		obj = em.find(Subscription.class, entityKey);
  		if (obj != null)
  			return false;
  		
  		return true;
  	}
  }