/*

  * Copyright 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/ecl1.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.api.action;

 import java.util.Collection;

 import java.util.Collections;

 import java.util.Set;

 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.XmlElementWrapper;

 import javax.xml.bind.annotation.XmlRootElement;

 import javax.xml.bind.annotation.XmlType;

 import org.apache.commons.lang.StringUtils;

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

 import org.kuali.rice.core.api.mo.AbstractDataTransferObject;

 import org.w3c.dom.Element;

 @XmlRootElement(name = AdHocRevoke.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

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

                 AdHocRevoke.Elements.NODE_NAMES,

                 AdHocRevoke.Elements.PRINCIPAL_IDS,

                 AdHocRevoke.Elements.GROUP_IDS,

                 CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public final class AdHocRevoke extends AbstractDataTransferObject {

         private static final long serialVersionUID = 5848714514445793355L;

         @XmlElementWrapper(name = Elements.NODE_NAMES, required = false)

         @XmlElement(name = Elements.NODE_NAME, required = false)

         private final Set<String> nodeNames;

         @XmlElementWrapper(name = Elements.PRINCIPAL_IDS, required = false)

         @XmlElement(name = Elements.PRINCIPAL_ID, required = false)

         private final Set<String> principalIds;

         @XmlElementWrapper(name = Elements.GROUP_IDS, required = false)

         @XmlElement(name = Elements.GROUP_ID, required = false)

         private final Set<String> groupIds;

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * Private constructor used only by JAXB.

      */

     private AdHocRevoke() {

         this.nodeNames = null;

         this.principalIds = null;

         this.groupIds = null;

     }

     private AdHocRevoke(Set<String> nodeNames, Set<String> principalIds, Set<String> groupIds) {

             this.nodeNames = nodeNames;

             this.principalIds = principalIds;

             this.groupIds = groupIds;

     }

     public static AdHocRevoke create(Set<String> nodeNames, Set<String> principalIds, Set<String> groupIds) {

             return new AdHocRevoke(nodeNames, principalIds, groupIds);

     }

     public static AdHocRevoke createRevokeFromPrincipal(String principalId) {

             if (StringUtils.isBlank(principalId)) {

                     throw new IllegalArgumentException("principalId was null or blank");

             }

             return create(null, Collections.singleton(principalId), null);

     }

     public static AdHocRevoke createRevokeFromGroup(String groupId) {

             if (StringUtils.isBlank(groupId)) {

                     throw new IllegalArgumentException("groupId was null or blank");

             }

             return create(null, null, Collections.singleton(groupId));

     }

     public static AdHocRevoke createRevokeAtNode(String nodeName) {

             if (StringUtils.isBlank(nodeName)) {

                     throw new IllegalArgumentException("nodeName was null or blank");

             }

             return create(Collections.singleton(nodeName), null, null);

     }

         public Set<String> getNodeNames() {

                 if (nodeNames == null) {

                         return Collections.emptySet();

                 }

                 return Collections.unmodifiableSet(nodeNames);

         }

         public Set<String> getPrincipalIds() {

                 if (principalIds == null) {

                         return Collections.emptySet();

                 }

                 return Collections.unmodifiableSet(principalIds);

         }

         public Set<String> getGroupIds() {

                 if (groupIds == null) {

                         return Collections.emptySet();

                 }

                 return Collections.unmodifiableSet(groupIds);

         }

         /**

      * Defines some internal constants used on this class.

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "adHocRevoke";

         final static String TYPE_NAME = "AdHocRevokeType";

     }

     /**

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

      */

     static class Elements {

             final static String NODE_NAMES = "nodeNames";

         final static String NODE_NAME = "nodeName";

         final static String PRINCIPAL_IDS = "principalIds";

         final static String PRINCIPAL_ID = "principalId";

         final static String GROUP_IDS = "groupIds";

         final static String GROUP_ID = "groupId";

     }

 }