io.micronaut.starter.feature.BaseAvailableFeatures Maven / Gradle / Ivy

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/*
 * Copyright 2017-2022 original authors
 *
 * 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
 *
 * https://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 io.micronaut.starter.feature;

import io.micronaut.core.annotation.NonNull;
import io.micronaut.starter.application.ApplicationType;

import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class BaseAvailableFeatures implements AvailableFeatures {
    private final Map features;

    public BaseAvailableFeatures(List features, ApplicationType applicationType) {
        this.features = features.stream()
                .filter(f -> f.supports(applicationType))
                .collect(Collectors.toMap(
                        Feature::getName,
                        Function.identity(),
                        (u, v) -> {
                            throw new IllegalArgumentException("Duplicate feature found " + u.getName());
                        },
                        LinkedHashMap::new));
    }

    @Override
    public Iterator iterator() {
        return getFeatures()
                .map(Feature::getName)
                .iterator();
    }

    @Override
    public Optional findFeature(@NonNull String name) {
        return findFeature(name, false);
    }

    @Override
    public Optional findFeature(@NonNull String name, boolean ignoreVisibility) {
        Feature feature = features.get(name);
        if (feature != null) {
            if (ignoreVisibility || feature.isVisible()) {
                return Optional.of(feature);
            }
        }
        return Optional.empty();
    }

    @Override
    public Stream getFeatures() {
        return getAllFeatures().filter(Feature::isVisible);
    }

    @Override
    public Stream getAllFeatures() {
        return features.values().stream();
    }
}