# ServiceDeclarationImpl.java

    /*
     * Copyright (c) 2007, Rickard Öberg. All Rights Reserved.
     * Copyright (c) 2012, Paul Merlin.
     *
     * 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.runtime.bootstrap;

    import java.util.ArrayList;
    import java.util.List;
    import org.qi4j.api.activation.Activator;
    import org.qi4j.api.common.Visibility;
    import org.qi4j.api.service.qualifier.ServiceTags;
    import org.qi4j.bootstrap.ServiceDeclaration;

    import static java.util.Arrays.asList;

    /**
     * Declaration of a Service. Created by {@link org.qi4j.runtime.bootstrap.ModuleAssemblyImpl#services(Class[])}.
     */
    public final class ServiceDeclarationImpl
        implements ServiceDeclaration
    {
        private final Iterable<ServiceAssemblyImpl> serviceAssemblies;

        public ServiceDeclarationImpl( Iterable<ServiceAssemblyImpl> serviceAssemblies )
        {
            this.serviceAssemblies = serviceAssemblies;
        }

        @Override
        public ServiceDeclaration visibleIn( Visibility visibility )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.visibility = visibility;
            }
            return this;
        }

        @Override
        public ServiceDeclaration identifiedBy( String identity )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.identity = identity;
            }
            return this;
        }

        @Override
        public ServiceDeclaration taggedWith( String... tags )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                ServiceTags previousTags = serviceAssembly.metaInfo.get( ServiceTags.class );
                if( previousTags != null )
                {
                    List<String> tagList = new ArrayList<>();
                    tagList.addAll( asList( previousTags.tags() ) );
                    tagList.addAll( asList( tags ) );
                    serviceAssembly.metaInfo.set( new ServiceTags( tagList.toArray( new String[ tagList.size() ] ) ) );
                }
                else
                {
                    serviceAssembly.metaInfo.set( new ServiceTags( tags ) );
                }
            }

            return this;
        }

        @Override
        public ServiceDeclaration instantiateOnStartup()
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.instantiateOnStartup = true;
            }
            return this;
        }

        @Override
        public ServiceDeclaration setMetaInfo( Object serviceAttribute )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.metaInfo.set( serviceAttribute );
            }
            return this;
        }

        @Override
        public ServiceDeclaration withConcerns( Class<?>... concerns )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.concerns.addAll( asList( concerns ) );
            }
            return this;
        }

        @Override
        public ServiceDeclaration withSideEffects( Class<?>... sideEffects )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.sideEffects.addAll( asList( sideEffects ) );
            }
            return this;
        }

        @Override
        public ServiceDeclaration withMixins( Class<?>... mixins )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.mixins.addAll( asList( mixins ) );
            }
            return this;
        }

        @Override
        public ServiceDeclaration withTypes( Class<?>... types )
        {
            for( ServiceAssemblyImpl serviceAssembly : serviceAssemblies )
            {
                serviceAssembly.types.addAll( asList( types ) );
            }
            return this;
        }

        @Override
        @SafeVarargs
        public final ServiceDeclaration withActivators( Class<? extends Activator<?>>... activators )
        {
            for ( ServiceAssemblyImpl serviceAssembly : serviceAssemblies ) {
                serviceAssembly.activators.addAll( asList( activators ) );
            }
            return this;
        }

    }