# RoleAssignee.java

    /*
     * Copyright (c) 2012, Paul Merlin. All Rights Reserved.
     *
     * 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.qi4j.library.shiro.domain.permissions;

    import java.util.Collections;
    import java.util.HashSet;
    import java.util.Set;
    import org.qi4j.api.association.ManyAssociation;
    import org.qi4j.api.common.UseDefaults;
    import org.qi4j.api.entity.Aggregated;
    import org.qi4j.api.entity.EntityComposite;
    import org.qi4j.api.injection.scope.This;
    import org.qi4j.api.mixin.Mixins;
    import org.qi4j.library.shiro.domain.common.IdentifiableSubject;

    @Mixins( RoleAssignee.Mixin.class )
    public interface RoleAssignee
            extends IdentifiableSubject, EntityComposite
    {

        @Aggregated
        @UseDefaults
        ManyAssociation<RoleAssignment> roleAssignments();

        Set<String> roleNames();

        Set<String> permissionStrings();

        public abstract class Mixin
                implements RoleAssignee
        {

            @This
            private RoleAssignee roleAssignee;

            @Override
            public Set<String> roleNames()
            {
                Set<String> roleNames = new HashSet<String>();
                for ( RoleAssignment assignment : roleAssignee.roleAssignments() ) {
                    roleNames.add( assignment.role().get().name().get() );
                }
                return Collections.unmodifiableSet( roleNames );
            }

            @Override
            public Set<String> permissionStrings()
            {
                Set<String> permissionStrings = new HashSet<String>();
                for ( RoleAssignment assignment : roleAssignee.roleAssignments() ) {
                    permissionStrings.addAll( assignment.role().get().permissions().get() );
                }
                return Collections.unmodifiableSet( permissionStrings );
            }

        }

    }