001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.eclipse.aether.internal.impl.filter;
020
021import javax.inject.Inject;
022import javax.inject.Named;
023import javax.inject.Provider;
024import javax.inject.Singleton;
025
026import java.util.function.Supplier;
027
028import org.eclipse.aether.impl.MetadataResolver;
029
030import static java.util.Objects.requireNonNull;
031
032/**
033 * A bridge to allow injecting plain suppliers, but while in Guice use this one.
034 *
035 * @since 2.0.11
036 */
037@Singleton
038@Named
039public final class MetadataResolverSupplier implements Supplier<MetadataResolver> {
040    private final Provider<MetadataResolver> metadataResolverProvider;
041
042    @Inject
043    public MetadataResolverSupplier(Provider<MetadataResolver> metadataResolverProvider) {
044        this.metadataResolverProvider = requireNonNull(metadataResolverProvider);
045    }
046
047    @Override
048    public MetadataResolver get() {
049        return metadataResolverProvider.get();
050    }
051}