/**
    * Copyright 2005-2011 The Kuali Foundation
    *
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    *
   * 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.kuali.rice.ksb.api.bus.support;
  
  import org.kuali.rice.core.api.util.jaxb.MapStringStringAdapter;
  
  import javax.xml.bind.annotation.XmlAccessType;
  import javax.xml.bind.annotation.XmlAccessorType;
  import javax.xml.bind.annotation.XmlElement;
  import javax.xml.bind.annotation.XmlRootElement;
  import javax.xml.bind.annotation.XmlType;
  import javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  
  @XmlRootElement(name = RestServiceConfiguration.Constants.ROOT_ELEMENT_NAME)
  @XmlAccessorType(XmlAccessType.NONE)
  @XmlType(name = RestServiceConfiguration.Constants.TYPE_NAME, propOrder = {
  		RestServiceConfiguration.Elements.RESOURCE_CLASS,
  		RestServiceConfiguration.Elements.RESOURCE_TO_CLASS_NAME_MAP
  })
  public final class RestServiceConfiguration extends AbstractServiceConfiguration {
  
  	private static final long serialVersionUID = -4226512121638441108L;
  
  	@XmlElement(name = Elements.RESOURCE_CLASS, required = false)
  	private final String resourceClass;
  	
  	@XmlJavaTypeAdapter(MapStringStringAdapter.class)
  	@XmlElement(name = Elements.RESOURCE_TO_CLASS_NAME_MAP, required = false)
  	private final Map<String, String> resourceToClassNameMap;
  	
  	/**
       * Private constructor used only by JAXB.
       */
  	private RestServiceConfiguration() {
  		super();
  		this.resourceClass = null;
  		this.resourceToClassNameMap = null;
  	}
  	
  	private RestServiceConfiguration(Builder builder) {
  		super(builder);
  		this.resourceClass = builder.getResourceClass();
  		if (builder.getResourceToClassNameMap() != null) {
  			this.resourceToClassNameMap = new HashMap<String, String>(builder.getResourceToClassNameMap());
  		} else {
  			this.resourceToClassNameMap = Collections.emptyMap();
  		}
  	}
  	
  	public static RestServiceConfiguration fromServiceDefinition(RestServiceDefinition restServiceDefinition) {
  		return Builder.create(restServiceDefinition).build();
  	}
  		
  	public String getResourceClass() {
  		return this.resourceClass;
  	}
  	
  	/**
  	 * Returns a map of resource names to resource classes.  Can be null if
  	 * there are no mapped resources on this service configuration.
  	 * 
  	 * @return the resource to class name map, or null if no resources have
  	 * been mapped
  	 */
  	public Map<String, String> getResourceToClassNameMap() {
  		return this.resourceToClassNameMap;
  	}
  	
  	/**
  	 * @param className
  	 * @return true if this service contains a resource for the given class name
  	 */
  	public boolean hasClass(String className) {
  		if (resourceToClassNameMap == null) {
  			return false;
  		}
  		return resourceToClassNameMap.containsValue(className);
  	}
  	
  	public static final class Builder extends AbstractServiceConfiguration.Builder<RestServiceConfiguration> {
  
  		private static final long serialVersionUID = 4300659121377259098L;
  
 		private String resourceClass;
 		private Map<String, String> resourceToClassNameMap;
 				
 		public String getResourceClass() {
 			return resourceClass;
 		}
 
 		public void setResourceClass(String resourceClass) {
 			this.resourceClass = resourceClass;
 		}
 
 		public Map<String, String> getResourceToClassNameMap() {
 			return resourceToClassNameMap;
 		}
 
 		public void setResourceToClassNameMap(Map<String, String> resourceToClassNameMap) {
 			this.resourceToClassNameMap = resourceToClassNameMap;
 		}
 		
 		private Builder() {
 		}
 		
 		public static Builder create() {
 			return new Builder();
 		}
 		
 		public static Builder create(RestServiceDefinition restServiceDefinition) {
 			Builder builder = create();
 			builder.copyServiceDefinitionProperties(restServiceDefinition);
 			builder.setResourceClass(restServiceDefinition.getResourceClass());
 			if (restServiceDefinition.getResourceToClassNameMap() != null) {
 				builder.setResourceToClassNameMap(restServiceDefinition.getResourceToClassNameMap());
 			}
 			return builder;
 		}
 
 		@Override
 		public RestServiceConfiguration build() {
 			return new RestServiceConfiguration(this);
 		}
 		
 	}
 	
 	/**
      * Defines some internal constants used on this class.
      */
     static class Constants {
     	final static String ROOT_ELEMENT_NAME = "restServiceConfiguration";
         final static String TYPE_NAME = "RestServiceConfigurationType";
     }
 
     /**
      * A private class which exposes constants which define the XML element names to use
      * when this object is marshalled to XML.
      */
      static class Elements {
     	protected final static String RESOURCE_CLASS = "resourceClass";
     	protected final static String RESOURCE_TO_CLASS_NAME_MAP = "resourceToClassNameMap";
     }
 
 	
 }