/**

  * 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.kew.impl.extension;

 import org.apache.commons.lang.StringUtils;

 import org.kuali.rice.core.api.CoreConstants;

 import org.kuali.rice.core.api.exception.RiceIllegalArgumentException;

 import org.kuali.rice.kew.api.extension.ExtensionDefinition;

 import org.kuali.rice.kew.api.extension.ExtensionRepositoryService;

 import org.kuali.rice.kew.rule.bo.RuleAttribute;

 import org.kuali.rice.kew.rule.service.RuleAttributeService;

 import org.w3c.dom.Element;

 import javax.xml.bind.annotation.XmlAccessType;

 import javax.xml.bind.annotation.XmlAccessorType;

 import javax.xml.bind.annotation.XmlAnyElement;

 import javax.xml.bind.annotation.XmlElement;

 import javax.xml.bind.annotation.XmlRootElement;

 import javax.xml.bind.annotation.XmlType;

 import java.util.Collection;

 /**

  * Reference implementation of the {@code ExtensionRepositoryService}.  This implementation

  * essentially sits on top of the legacy "RuleAttribute" service.

  *

  * @author Kuali Rice Team (rice.collab@kuali.org)

  */

 @XmlRootElement(name = ExtensionRepositoryServiceImpl.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

 @XmlType(name = ExtensionRepositoryServiceImpl.Constants.TYPE_NAME, propOrder = {

     ExtensionRepositoryServiceImpl.Elements.RULE_ATTRIBUTE_SERVICE,

     CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public class ExtensionRepositoryServiceImpl implements ExtensionRepositoryService {

     /**

      * Private constructor used only by JAXB.

      *

      */

     private ExtensionRepositoryServiceImpl() {

         this.ruleAttributeService = null;

     }

     @XmlElement(name = Elements.RULE_ATTRIBUTE_SERVICE, required = true)

     private RuleAttributeService ruleAttributeService;

     /**

          * Returns the {@link ExtensionDefinition} of the {@Link RuleAttribute} for the given id.

          * @param id the id to search by.

      * @return the extension definition found for the matching rule attribute service

          */

     @Override

     public ExtensionDefinition getExtensionById(String id) throws RiceIllegalArgumentException {

         if (StringUtils.isBlank(id)) {

             throw new RiceIllegalArgumentException("id was null or blank");

         }

         RuleAttribute ruleAttribute = ruleAttributeService.findByRuleAttributeId(id);

         return translateFromRuleAttribute(ruleAttribute);

     }

     /**

          * Returns the {@link ExtensionDefinition} of the {@Link RuleAttribute} for the given name.

          * @param name the name to search by.

      * @return the extension definition found for the matching rule attribute service

          */

     @Override

     public ExtensionDefinition getExtensionByName(String name) throws RiceIllegalArgumentException {

         if (StringUtils.isBlank(name)) {

             throw new RiceIllegalArgumentException("name was null or blank");

         }

         RuleAttribute ruleAttribute = ruleAttributeService.findByName(name);

         return translateFromRuleAttribute(ruleAttribute);

     }

     private ExtensionDefinition translateFromRuleAttribute(RuleAttribute ruleAttribute) {

         return RuleAttribute.to(ruleAttribute);

     }

     /**

          * Sets the rule attribute service.

          * @param ruleAttributeService the rule attribute service to set.

          */

     public void setRuleAttributeService(RuleAttributeService ruleAttributeService) {

         this.ruleAttributeService = ruleAttributeService;

     }

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * Defines some internal constants used on this class.

      *

      */

     static class Constants {

         static final String ROOT_ELEMENT_NAME = "extensionRepositoryService";

         static final String TYPE_NAME = "ExtensionRepositoryService";

     }

     /**

      * A private class which exposes constants which define the XML element names to use when this object is marshalled to XML.

      *

      */

     static class Elements {

         static final String RULE_ATTRIBUTE_SERVICE = "ruleAttributeService";

     }

 }