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// Copyright 2016 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.android;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.analysis.skylark.SkylarkApiProvider;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.concurrent.ThreadSafety.Immutable;
import com.google.devtools.build.lib.rules.java.JavaRuleOutputJarsProvider;
import com.google.devtools.build.lib.rules.java.JavaRuleOutputJarsProvider.OutputJar;
import com.google.devtools.build.lib.skylarkbuildapi.android.AndroidSkylarkApiProviderApi;
import java.util.function.Function;
import javax.annotation.Nullable;
/**
* A class that exposes the Android providers to Skylark. It is intended to provide a simple and
* stable interface for Skylark users.
*/
@Immutable
public class AndroidSkylarkApiProvider extends SkylarkApiProvider
implements AndroidSkylarkApiProviderApi<Artifact> {
/** The name of the field in Skylark used to access this class. */
public static final String NAME = "android";
private final IdlInfo idlInfo = new IdlInfo();
private final AndroidResourcesInfo resourceInfo;
public AndroidSkylarkApiProvider(AndroidResourcesInfo resourceInfo) {
this.resourceInfo = resourceInfo;
}
@Override
public Artifact getApk() {
return getIdeInfoProvider().getSignedApk();
}
private AndroidIdeInfoProvider getIdeInfoProvider() {
return getInfo().get(AndroidIdeInfoProvider.PROVIDER);
}
@Override
public String getJavaPackage() {
return getIdeInfoProvider().getJavaPackage();
}
@Override
public Artifact getManifest() {
return getIdeInfoProvider().getManifest();
}
@Override
public Artifact getMergedManifest() {
return getIdeInfoProvider().getGeneratedManifest();
}
@Override
public ImmutableMap<String, NestedSet<Artifact>> getNativeLibs() {
return getIdeInfoProvider().getNativeLibs();
}
@Override
public Artifact getResourceApk() {
return getIdeInfoProvider().getResourceApk();
}
@Override
public ImmutableCollection<Artifact> getApksUnderTest() {
return getIdeInfoProvider().getApksUnderTest();
}
@Override
public boolean definesAndroidResources() {
return getIdeInfoProvider().definesAndroidResources();
}
@Override
public IdlInfo getIdlInfo() {
return idlInfo;
}
@Override
public NestedSet<Artifact> getResources() {
return collectDirectArtifacts(ValidatedAndroidResources::getResources);
}
@Override
@Nullable
public JavaRuleOutputJarsProvider.OutputJar getResourceJar() {
return getIdeInfoProvider().getResourceJar();
}
@Override
public Artifact getAar() {
return getIdeInfoProvider().getAar();
}
private NestedSet<Artifact> collectDirectArtifacts(
final Function<ValidatedAndroidResources, Iterable<Artifact>> artifactFunction) {
if (resourceInfo == null) {
return NestedSetBuilder.emptySet(Order.STABLE_ORDER);
}
// This will iterate over all (direct) resources. If this turns out to be a performance
// problem, {@link ValidatedAndroidResources#getArtifacts()} can be changed to return
// NestedSets.
return NestedSetBuilder.wrap(
Order.STABLE_ORDER,
Iterables.concat(
Iterables.transform(
resourceInfo.getDirectAndroidResources(), data -> artifactFunction.apply(data))));
}
/** Helper class to provide information about IDLs related to this rule. */
@Immutable
public class IdlInfo implements IdlInfoApi<Artifact> {
@Override
public String getImportRoot() {
return getIdeInfoProvider().getIdlImportRoot();
}
@Override
public ImmutableCollection<Artifact> getSources() {
return getIdeInfoProvider().getIdlSrcs();
}
@Override
public ImmutableCollection<Artifact> getIdlGeneratedJavaFiles() {
return getIdeInfoProvider().getIdlGeneratedJavaFiles();
}
@Override
@Nullable
public JavaRuleOutputJarsProvider.OutputJar getIdlOutput() {
if (getIdeInfoProvider().getIdlClassJar() == null) {
return null;
}
Artifact idlSourceJar = getIdeInfoProvider().getIdlSourceJar();
return new OutputJar(
getIdeInfoProvider().getIdlClassJar(),
null,
null,
idlSourceJar == null ? ImmutableList.<Artifact>of() : ImmutableList.of(idlSourceJar));
}
}
}
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