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org.gradle.composite.internal.plugins.CompositeBuildPluginResolverContributor Maven / Gradle / Ivy

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/*
 * Copyright 2018 the original author or 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
 *
 *      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.gradle.composite.internal.plugins;

import org.gradle.api.internal.project.HoldsProjectState;
import org.gradle.internal.build.BuildIncluder;
import org.gradle.internal.build.IncludedBuildState;
import org.gradle.plugin.management.internal.InvalidPluginRequestException;
import org.gradle.plugin.management.internal.PluginRequestInternal;
import org.gradle.plugin.use.PluginId;
import org.gradle.plugin.use.resolve.internal.PluginResolution;
import org.gradle.plugin.use.resolve.internal.PluginResolutionResult;
import org.gradle.plugin.use.resolve.internal.PluginResolver;
import org.gradle.plugin.use.resolve.internal.PluginResolverContributor;

import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;

public class CompositeBuildPluginResolverContributor implements PluginResolverContributor, HoldsProjectState {

    private static final String SOURCE_DESCRIPTION = "Included Builds";

    private final CompositeBuildPluginResolver resolver;

    public CompositeBuildPluginResolverContributor(BuildIncluder buildIncluder) {
        this.resolver = new CompositeBuildPluginResolver(buildIncluder);
    }

    @Override
    public void discardAll() {
        resolver.discardAll();
    }

    @Override
    public void collectResolversInto(Collection resolvers) {
        resolvers.add(resolver);
    }

    private abstract static class PluginResult {
        static final PluginResult NOT_FOUND_IN_ANY_BUILD = new PluginResult() {};
        static final PluginResult NO_INCLUDED_BUILDS = new PluginResult() {};
    }

    private static class ResolvedPlugin extends PluginResult {
        final PluginResolution resolution;

        public ResolvedPlugin(PluginResolution resolution) {
            this.resolution = resolution;
        }
    }

    private static class CompositeBuildPluginResolver implements PluginResolver {
        private final BuildIncluder buildIncluder;

        private final Map results = new ConcurrentHashMap<>();

        private CompositeBuildPluginResolver(BuildIncluder buildIncluder) {
            this.buildIncluder = buildIncluder;
        }

        @Override
        public void resolve(PluginRequestInternal pluginRequest, PluginResolutionResult result) throws InvalidPluginRequestException {
            PluginResult resolutionResult = results.computeIfAbsent(pluginRequest.getId(), this::doResolve);
            if (resolutionResult == PluginResult.NOT_FOUND_IN_ANY_BUILD) {
                result.notFound(SOURCE_DESCRIPTION, "None of the included builds contain this plugin");
            } else if (resolutionResult instanceof ResolvedPlugin) {
                result.found(SOURCE_DESCRIPTION, ((ResolvedPlugin) resolutionResult).resolution);
            } // else, no included builds
        }

        private PluginResult doResolve(PluginId pluginId) {
            PluginResolution earlyResolution = resolveFromIncludedPluginBuilds(pluginId);
            if (earlyResolution != null) {
                return new ResolvedPlugin(earlyResolution);
            }
            return resolvePluginFromIncludedBuilds(pluginId);
        }

        private PluginResult resolvePluginFromIncludedBuilds(PluginId requestedPluginId) {
            Collection includedBuilds = buildIncluder.getIncludedBuildsForPluginResolution();
            if (includedBuilds.isEmpty()) {
                return PluginResult.NO_INCLUDED_BUILDS;
            }
            for (IncludedBuildState build : includedBuilds) {
                Optional pluginResolution = build.withState(gradleInternal -> LocalPluginResolution.resolvePlugin(gradleInternal, requestedPluginId));
                if (pluginResolution.isPresent()) {
                    return new ResolvedPlugin(pluginResolution.get());
                }
            }
            return PluginResult.NOT_FOUND_IN_ANY_BUILD;
        }

        private PluginResolution resolveFromIncludedPluginBuilds(PluginId requestedPluginId) {
            for (IncludedBuildState build : buildIncluder.getRegisteredPluginBuilds()) {
                buildIncluder.prepareForPluginResolution(build);
                Optional pluginResolution = build.withState(gradleInternal -> LocalPluginResolution.resolvePlugin(gradleInternal, requestedPluginId));
                if (pluginResolution.isPresent()) {
                    return pluginResolution.get();
                }
            }
            return null;
        }

        public void discardAll() {
            results.clear();
        }
    }
}




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