/**

  * 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.kim.api.role;

 import org.apache.commons.lang.StringUtils;

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

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

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

 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.io.Serializable;

 import java.util.Collection;

 @XmlRootElement(name = RolePermission.Constants.ROOT_ELEMENT_NAME)

 @XmlAccessorType(XmlAccessType.NONE)

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

         RolePermission.Elements.ID,

         RolePermission.Elements.ROLE_ID,

         RolePermission.Elements.PERMISSION_ID,

         RolePermission.Elements.ACTIVE,

         CoreConstants.CommonElements.VERSION_NUMBER,

         CoreConstants.CommonElements.OBJECT_ID,

         CoreConstants.CommonElements.FUTURE_ELEMENTS

 })

 public class RolePermission extends AbstractDataTransferObject implements RolePermissionContract {

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

     private final String id;

     @XmlElement(name = RolePermission.Elements.ROLE_ID, required = false)

     private final String roleId;

     @XmlElement(name = RolePermission.Elements.PERMISSION_ID, required = false)

     private final String permissionId;

     @XmlElement(name = RolePermission.Elements.ACTIVE, required = false)

     private final boolean active;

     @XmlElement(name = CoreConstants.CommonElements.VERSION_NUMBER, required = false)

     private final Long versionNumber;

     @XmlElement(name = CoreConstants.CommonElements.OBJECT_ID, required = false)

     private final String objectId;

     @SuppressWarnings("unused")

     @XmlAnyElement

     private final Collection<Element> _futureElements = null;

     /**

      * A constructor to be used only by JAXB unmarshalling.

      */

     private RolePermission() {

         this.id = null;

         this.roleId = null;

         this.permissionId = null;

         this.active = false;

         this.versionNumber = null;

         this.objectId = null;

     }

     /**

      * A constructor using the Builder.

      *

      * @param builder

      */

     public RolePermission(Builder builder) {

         this.id = builder.getId();

         this.roleId = builder.getRoleId();

         this.permissionId = builder.getPermissionId();

         this.active = builder.isActive();

         this.versionNumber = builder.getVersionNumber();

         this.objectId = builder.getObjectId();

     }

     @Override

     public String getId() {

         return id;

     }

     @Override

     public String getPermissionId() {

         return permissionId;

     }

     @Override

     public String getRoleId() {

         return roleId;

     }

     @Override

     public boolean isActive() {

         return active;

     }

     @Override

     public Long getVersionNumber() {

         return versionNumber;

     }

     @Override

     public String getObjectId() {

         return objectId;

     }

     /**

      * This builder constructs a RolePermission enforcing the constraints of the {@link RolePermissionContract}.

      */

     public static final class Builder implements RolePermissionContract, ModelBuilder, Serializable {

         private String id;

         private String roleId;

         private String permissionId;

         private Long versionNumber = 1L;

         private String objectId;

         private boolean active;

         private Builder(String id, String roleId, String permissionId) {

             setId(id);

             setRoleId(roleId);

             setPermissionId(permissionId);

         }

         /**

          * Creates a RolePermission with the required fields.

          */

         public static Builder create(String id, String roleId, String permissionId) {

             return new Builder(id, roleId, permissionId);

         }

         /**

          * Creates a RolePermission from an existing {@link RolePermissionContract}.

          */

         public static Builder create(RolePermissionContract contract) {

             Builder builder = new Builder(contract.getId(), contract.getRoleId(), contract.getPermissionId());

             builder.setActive(contract.isActive());

             builder.setVersionNumber(contract.getVersionNumber());

             builder.setObjectId(contract.getObjectId());

             return builder;

         }

         @Override

         public String getId() {

             return id;

         }

         public void setId(final String id) {

             if (StringUtils.isWhitespace(id)) {

                 throw new IllegalArgumentException("id is blank");

             }

             this.id = id;

         }

         @Override

         public String getPermissionId() {

             return permissionId;

         }

         public void setPermissionId(final String permissionId) {

             this.permissionId = permissionId;

         }

         @Override

         public String getRoleId() {

             return roleId;

         }

         public void setRoleId(final String roleId) {

             this.roleId = roleId;

         }

         @Override

         public Long getVersionNumber() {

             return versionNumber;

         }

         public void setVersionNumber(Long versionNumber) {

             if (versionNumber == null || versionNumber <= 0) {

                 throw new IllegalArgumentException("versionNumber is invalid");

             }

             this.versionNumber = versionNumber;

         }

         @Override

         public String getObjectId() {

             return objectId;

         }

         public void setObjectId(final String objectId) {

             this.objectId = objectId;

         }

         @Override

         public boolean isActive() {

             return active;

         }

         public void setActive(final boolean active) {

             this.active = active;

         }

         @Override

         public RolePermission build() {

             if (versionNumber == null || versionNumber <= 0) {

                 throw new IllegalStateException("versionNumber is invalid");

             }

             if (StringUtils.isWhitespace(id)) {

                 throw new IllegalStateException("id is blank");

             }

             return new RolePermission(this);

         }

     }

     /**

      * Defines some internal constants used on this class.

      */

     static class Constants {

         final static String ROOT_ELEMENT_NAME = "rolePermission";

         final static String TYPE_NAME = "RolePermissionType";

     }

     /**

      * 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 ID = "id";

         final static String PERMISSION_ID = "permissionId";

         final static String ROLE_ID = "roleId";

         final static String ACTIVE = "active";

     }

 }