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// Copyright 2018 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.buildeventstream;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.Futures;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.devtools.build.lib.buildeventstream.BuildEvent.LocalFile;
import com.google.devtools.build.lib.vfs.Path;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executors;
import javax.annotation.Nullable;
/** An uploader that simply turns paths into local file URIs. */
class LocalFilesArtifactUploader implements BuildEventArtifactUploader {
private final ListeningExecutorService uploadExecutor =
MoreExecutors.listeningDecorator(Executors.newCachedThreadPool());
@Override
public ListenableFuture<PathConverter> upload(Map<Path, LocalFile> files) {
List<ListenableFuture<PathLookupResult>> lookups = new ArrayList<>();
for (Path path : files.keySet()) {
lookups.add(uploadExecutor.submit(() -> new PathLookupResult(path, path.isDirectory())));
}
return Futures.transform(
Futures.allAsList(lookups),
lookupList -> {
ImmutableMap.Builder<Path, PathLookupResult> pathLookups = ImmutableMap.builder();
for (PathLookupResult lookup : lookupList) {
pathLookups.put(lookup.path, lookup);
}
return new PathConverterImpl(pathLookups.build());
},
MoreExecutors.directExecutor());
}
@Override
public void shutdown() {
// Intentionally left empty
}
private static class PathLookupResult {
final Path path;
final boolean isDirectory;
private PathLookupResult(Path path, boolean isDirectory) {
this.path = path;
this.isDirectory = isDirectory;
}
}
private static class PathConverterImpl implements PathConverter {
private static final FileUriPathConverter FILE_URI_PATH_CONVERTER = new FileUriPathConverter();
private final Map<Path, PathLookupResult> pathLookups;
private PathConverterImpl(Map<Path, PathLookupResult> pathLookups) {
this.pathLookups = pathLookups;
}
@Nullable
@Override
public String apply(Path path) {
PathLookupResult result = pathLookups.get(path);
if (result == null) {
// We should throw here, the file wasn't declared in BuildEvent#referencedLocalFiles
return null;
}
if (result.isDirectory) {
return null;
}
return FILE_URI_PATH_CONVERTER.apply(result.path);
}
}
}
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