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// Copyright 2017 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.android;
import com.android.annotations.Nullable;
import com.android.builder.core.VariantType;
import com.android.ide.common.internal.PngCruncher;
import com.google.common.base.Stopwatch;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import java.io.Closeable;
import java.io.IOException;
import java.nio.file.Path;
import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
/** Collects all the functionality for an action to merge resources. */
// TODO(bazel-team): Turn into an instance object, in order to use an external ExecutorService.
public class AndroidResourceMerger {
/** Thrown when there is a unexpected condition during merging. */
public static class MergingException extends RuntimeException {
private MergingException(Throwable e) {
super(e);
}
private MergingException(String message) {
super(message);
}
static MergingException wrapException(Throwable e) {
return new MergingException(e);
}
static MergingException withMessage(String message) {
return new MergingException(message);
}
}
static final Logger logger = Logger.getLogger(AndroidResourceProcessor.class.getName());
/** Merges all secondary resources with the primary resources. */
public static MergedAndroidData mergeData(
final ParsedAndroidData primary,
final Path primaryManifest,
final List<? extends SerializedAndroidData> direct,
final List<? extends SerializedAndroidData> transitive,
final Path resourcesOut,
final Path assetsOut,
@Nullable final PngCruncher cruncher,
final VariantType type,
@Nullable final Path symbolsOut,
@Nullable AndroidResourceClassWriter rclassWriter,
AndroidDataDeserializer deserializer,
boolean throwOnResourceConflict) {
Stopwatch timer = Stopwatch.createStarted();
final ListeningExecutorService executorService =
MoreExecutors.listeningDecorator(Executors.newFixedThreadPool(15));
try (Closeable closeable = ExecutorServiceCloser.createWith(executorService)) {
UnwrittenMergedAndroidData merged =
mergeData(
executorService,
transitive,
direct,
primary,
primaryManifest,
type != VariantType.LIBRARY,
deserializer,
throwOnResourceConflict);
timer.reset().start();
if (symbolsOut != null) {
AndroidDataSerializer serializer = AndroidDataSerializer.create();
merged.serializeTo(serializer);
serializer.flushTo(symbolsOut);
logger.fine(
String.format(
"serialize merge finished in %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
timer.reset().start();
}
if (rclassWriter != null) {
merged.writeResourceClass(rclassWriter);
logger.fine(
String.format("write classes finished in %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
timer.reset().start();
}
AndroidDataWriter writer =
AndroidDataWriter.createWith(
resourcesOut.getParent(), resourcesOut, assetsOut, cruncher, executorService);
return merged.write(writer);
} catch (IOException e) {
throw MergingException.wrapException(e);
} finally {
logger.fine(
String.format("write merge finished in %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
}
}
public static UnwrittenMergedAndroidData mergeData(
ListeningExecutorService executorService,
List<? extends SerializedAndroidData> transitive,
List<? extends SerializedAndroidData> direct,
ParsedAndroidData primary,
Path primaryManifest,
boolean allowPrimaryOverrideAll,
AndroidDataDeserializer deserializer,
boolean throwOnResourceConflict) {
Stopwatch timer = Stopwatch.createStarted();
try {
AndroidDataMerger merger =
AndroidDataMerger.createWithPathDeduplictor(executorService, deserializer);
return merger.loadAndMerge(
transitive,
direct,
primary,
primaryManifest,
allowPrimaryOverrideAll,
throwOnResourceConflict);
} finally {
logger.fine(String.format("merge finished in %sms", timer.elapsed(TimeUnit.MILLISECONDS)));
}
}
/**
* Merges all secondary resources with the primary resources, given that the primary resources
* have not yet been parsed and serialized.
*/
public static MergedAndroidData mergeData(
final UnvalidatedAndroidData primary,
final List<? extends SerializedAndroidData> direct,
final List<? extends SerializedAndroidData> transitive,
final Path resourcesOut,
final Path assetsOut,
@Nullable final PngCruncher cruncher,
final VariantType type,
@Nullable final Path symbolsOut,
final List<String> filteredResources,
boolean throwOnResourceConflict) {
try {
final ParsedAndroidData parsedPrimary = ParsedAndroidData.from(primary);
return mergeData(
parsedPrimary,
primary.getManifest(),
direct,
transitive,
resourcesOut,
assetsOut,
cruncher,
type,
symbolsOut,
null /* rclassWriter */,
AndroidDataDeserializer.withFilteredResources(filteredResources),
throwOnResourceConflict);
} catch (IOException e) {
throw MergingException.wrapException(e);
}
}
/**
* Merges all secondary resources with the primary resources, given that the primary resources
* have been separately parsed and serialized.
*/
public static MergedAndroidData mergeData(
final SerializedAndroidData primary,
final Path primaryManifest,
final List<? extends SerializedAndroidData> direct,
final List<? extends SerializedAndroidData> transitive,
final Path resourcesOut,
final Path assetsOut,
@Nullable final PngCruncher cruncher,
final VariantType type,
@Nullable final Path symbolsOut,
@Nullable final AndroidResourceClassWriter rclassWriter,
boolean throwOnResourceConflict) {
final ParsedAndroidData.Builder primaryBuilder = ParsedAndroidData.Builder.newBuilder();
final AndroidDataDeserializer deserializer = AndroidDataDeserializer.create();
primary.deserialize(deserializer, primaryBuilder.consumers());
ParsedAndroidData primaryData = primaryBuilder.build();
return mergeData(
primaryData,
primaryManifest,
direct,
transitive,
resourcesOut,
assetsOut,
cruncher,
type,
symbolsOut,
rclassWriter,
deserializer,
throwOnResourceConflict);
}
}
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