# IniSecurityManagerService.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.ini;

    import java.util.ArrayList;
    import java.util.Collection;
    import org.apache.shiro.config.Ini;
    import org.apache.shiro.config.IniSecurityManagerFactory;
    import org.apache.shiro.mgt.RealmSecurityManager;
    import org.apache.shiro.mgt.SecurityManager;
    import org.apache.shiro.realm.Realm;
    import org.apache.shiro.util.ThreadContext;
    import org.qi4j.api.common.Optional;
    import org.qi4j.api.configuration.Configuration;
    import org.qi4j.api.injection.scope.Service;
    import org.qi4j.api.injection.scope.This;
    import org.qi4j.api.mixin.Mixins;
    import org.qi4j.api.service.ServiceActivation;
    import org.qi4j.api.service.ServiceReference;
    import org.qi4j.functional.Iterables;
    import org.qi4j.library.shiro.Shiro;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;

    @Mixins( IniSecurityManagerService.Mixin.class )
    public interface IniSecurityManagerService
            extends ServiceActivation
    {

        SecurityManager getSecurityManager();

        public class Mixin
                extends IniSecurityManagerFactory
                implements IniSecurityManagerService
        {

            private static final Logger LOG = LoggerFactory.getLogger( Shiro.LOGGER_NAME );

            @This
            private Configuration<ShiroIniConfiguration> configuration;

            @Optional
            @Service
            private Iterable<ServiceReference<Realm>> realmsRefs;

            private SecurityManager securityManager;

            @Override
            public void activateService()
                    throws Exception
            {
                configuration.refresh();
                ShiroIniConfiguration config = configuration.get();

                String iniResourcePath = config.iniResourcePath().get() == null
                                         ? Shiro.DEFAULT_INI_RESOURCE_PATH
                                         : config.iniResourcePath().get();

                setIni( Ini.fromResourcePath( iniResourcePath ) );
                securityManager = getInstance();

                if ( realmsRefs != null && Iterables.count( realmsRefs ) > 0 ) {

                    // Register Realms Services
                    RealmSecurityManager realmSecurityManager = ( RealmSecurityManager ) securityManager;
                    Collection<Realm> iniRealms = new ArrayList<Realm>( realmSecurityManager.getRealms() );
                    for ( ServiceReference<Realm> realmRef : realmsRefs ) {
                        iniRealms.add( realmRef.get() );
                        LOG.debug( "Realm Service '{}' registered!", realmRef.identity() );
                    }
                    realmSecurityManager.setRealms( iniRealms );

                }

                ThreadContext.bind( securityManager );
            }

            @Override
            public void passivateService()
                    throws Exception
            {
                ThreadContext.unbindSubject();
                ThreadContext.unbindSecurityManager();
            }

            @Override
            public SecurityManager getSecurityManager()
            {
                return securityManager;
            }

        }

    }