com.google.devtools.build.lib.rules.java.JavaPluginInfoProvider.java Source code

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Here is the source code for com.google.devtools.build.lib.rules.java.JavaPluginInfoProvider.java

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// Copyright 2014 The Bazel Authors. All rights reserved.
//
// 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 com.google.devtools.build.lib.rules.java;

import com.google.common.collect.ImmutableSet;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.TransitiveInfoProvider;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;

/**
 * Provider for users of Java plugins.
 */
@Immutable
public final class JavaPluginInfoProvider implements TransitiveInfoProvider {

    public static JavaPluginInfoProvider merge(Iterable<JavaPluginInfoProvider> providers) {
        ImmutableSet.Builder<String> processorClasses = ImmutableSet.builder();
        NestedSetBuilder<Artifact> processorClasspath = NestedSetBuilder.naiveLinkOrder();
        ImmutableSet.Builder<String> apiGeneratingProcessorClasses = ImmutableSet.builder();
        NestedSetBuilder<Artifact> apiGeneratingProcessorClasspath = NestedSetBuilder.naiveLinkOrder();

        for (JavaPluginInfoProvider provider : providers) {
            processorClasses.addAll(provider.getProcessorClasses());
            processorClasspath.addTransitive(provider.getProcessorClasspath());
            apiGeneratingProcessorClasses.addAll(provider.getApiGeneratingProcessorClasses());
            apiGeneratingProcessorClasspath.addTransitive(provider.getApiGeneratingProcessorClasspath());
        }
        return new JavaPluginInfoProvider(processorClasses.build(), processorClasspath.build(),
                apiGeneratingProcessorClasses.build(), apiGeneratingProcessorClasspath.build());
    }

    private final ImmutableSet<String> processorClasses;
    private final NestedSet<Artifact> processorClasspath;
    private final ImmutableSet<String> apiGeneratingProcessorClasses;
    private final NestedSet<Artifact> apiGeneratingProcessorClasspath;

    public JavaPluginInfoProvider(ImmutableSet<String> processorClasses, NestedSet<Artifact> processorClasspath,
            ImmutableSet<String> apiGeneratingProcessorClasses,
            NestedSet<Artifact> apiGeneratingProcessorClasspath) {
        this.processorClasses = processorClasses;
        this.processorClasspath = processorClasspath;
        this.apiGeneratingProcessorClasses = apiGeneratingProcessorClasses;
        this.apiGeneratingProcessorClasspath = apiGeneratingProcessorClasspath;
    }

    /**
     * Returns the class that should be passed to javac in order
     * to run the annotation processor this class represents.
     */
    public ImmutableSet<String> getProcessorClasses() {
        return processorClasses;
    }

    /**
     * Returns the artifacts to add to the runtime classpath for this plugin.
     */
    public NestedSet<Artifact> getProcessorClasspath() {
        return processorClasspath;
    }

    /** Returns the class names of API-generating annotation processors. */
    public ImmutableSet<String> getApiGeneratingProcessorClasses() {
        return apiGeneratingProcessorClasses;
    }

    /** Returns the artifacts to add to the runtime classpath of the API-generating processors. */
    public NestedSet<Artifact> getApiGeneratingProcessorClasspath() {
        return apiGeneratingProcessorClasspath;
    }
}