core/api/src/main/java/org/apache/polygene/api/service/NoSuchServiceTypeException.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.apache.polygene.api.service;

import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.apache.polygene.api.composite.CompositeDescriptor;
import org.apache.polygene.api.composite.ModelDescriptor;
import org.apache.polygene.api.composite.NoSuchCompositeTypeException;
import org.apache.polygene.api.structure.ModuleDescriptor;
import org.apache.polygene.api.structure.TypeLookup;

/**
 * Thrown when no visible service of the requested type is found.
 */
public class NoSuchServiceTypeException extends NoSuchCompositeTypeException
{
    public NoSuchServiceTypeException( String typeName, ModuleDescriptor module )
    {
        super( "ServiceComposite", typeName, module );
    }

    @Override
    protected Stream<? extends CompositeDescriptor> descriptors( TypeLookup typeLookup )
    {
        return typeLookup.allServices()
                         .filter( descriptor -> descriptor instanceof ServiceDescriptor )
                         .map( descriptor -> (ServiceDescriptor) descriptor );
    }
}