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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.flink.runtime.client;
import org.apache.flink.api.common.JobID;
import org.apache.flink.api.common.cache.DistributedCache;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.core.fs.FileSystem;
import org.apache.flink.core.fs.Path;
import org.apache.flink.runtime.blob.BlobClient;
import org.apache.flink.runtime.blob.PermanentBlobKey;
import org.apache.flink.runtime.jobgraph.JobGraph;
import org.apache.flink.util.FileUtils;
import org.apache.flink.util.FlinkException;
import org.apache.flink.util.FlinkRuntimeException;
import org.apache.flink.util.function.SupplierWithException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.function.Supplier;
import java.util.stream.Collectors;
/**
* Contains utility methods for clients.
*/
public enum ClientUtils {
;
private static final Logger LOG = LoggerFactory.getLogger(ClientUtils.class);
/**
* Extracts all files required for the execution from the given {@link JobGraph} and uploads them using the {@link BlobClient}
* from the given {@link Supplier}.
*
* @param jobGraph jobgraph requiring files
* @param clientSupplier supplier of blob client to upload files with
* @throws FlinkException if the upload fails
*/
public static void extractAndUploadJobGraphFiles(JobGraph jobGraph, SupplierWithException clientSupplier) throws FlinkException {
List userJars = jobGraph.getUserJars();
Collection> userArtifacts = jobGraph.getUserArtifacts().entrySet().stream()
.map(entry -> Tuple2.of(entry.getKey(), new Path(entry.getValue().filePath)))
.collect(Collectors.toList());
uploadJobGraphFiles(jobGraph, userJars, userArtifacts, clientSupplier);
}
/**
* Uploads the given jars and artifacts required for the execution of the given {@link JobGraph} using the {@link BlobClient} from
* the given {@link Supplier}.
*
* @param jobGraph jobgraph requiring files
* @param userJars jars to upload
* @param userArtifacts artifacts to upload
* @param clientSupplier supplier of blob client to upload files with
* @throws FlinkException if the upload fails
*/
public static void uploadJobGraphFiles(
JobGraph jobGraph,
Collection userJars,
Collection> userArtifacts,
SupplierWithException clientSupplier) throws FlinkException {
if (!userJars.isEmpty() || !userArtifacts.isEmpty()) {
try (BlobClient client = clientSupplier.get()) {
uploadAndSetUserJars(jobGraph, userJars, client);
uploadAndSetUserArtifacts(jobGraph, userArtifacts, client);
} catch (IOException ioe) {
throw new FlinkException("Could not upload job files.", ioe);
}
}
}
/**
* Add userArtifacts to the JobGraph. The file will be directly added and the directory will be compressed.
* @param userArtifacts userArtifacts to be added
* @param jobGraph jobGraph which the userArtifacts will be added to
*/
public static void addUserArtifactEntries(Collection> userArtifacts, JobGraph jobGraph) {
if (!userArtifacts.isEmpty()) {
try {
java.nio.file.Path tmpDir = Files.createTempDirectory("flink-distributed-cache-" + jobGraph.getJobID());
for (Tuple2 originalEntry : userArtifacts) {
Path filePath = new Path(originalEntry.f1.filePath);
boolean isLocalDir = false;
try {
FileSystem sourceFs = filePath.getFileSystem();
isLocalDir = !sourceFs.isDistributedFS() && sourceFs.getFileStatus(filePath).isDir();
} catch (IOException ioe) {
LOG.warn("Could not determine whether {} denotes a local path.", filePath, ioe);
}
// zip local directories because we only support file uploads
DistributedCache.DistributedCacheEntry entry;
if (isLocalDir) {
Path zip = FileUtils.compressDirectory(filePath, new Path(tmpDir.toString(), filePath.getName() + ".zip"));
entry = new DistributedCache.DistributedCacheEntry(zip.toString(), originalEntry.f1.isExecutable, true);
} else {
entry = new DistributedCache.DistributedCacheEntry(filePath.toString(), originalEntry.f1.isExecutable, false);
}
jobGraph.addUserArtifact(originalEntry.f0, entry);
}
} catch (IOException ioe) {
throw new FlinkRuntimeException("Could not compress distributed-cache artifacts.", ioe);
}
}
}
/**
* Uploads the given user jars using the given {@link BlobClient}, and sets the appropriate blobkeys on the given {@link JobGraph}.
*
* @param jobGraph jobgraph requiring user jars
* @param userJars jars to upload
* @param blobClient client to upload jars with
* @throws IOException if the upload fails
*/
private static void uploadAndSetUserJars(JobGraph jobGraph, Collection userJars, BlobClient blobClient) throws IOException {
Collection blobKeys = uploadUserJars(jobGraph.getJobID(), userJars, blobClient);
setUserJarBlobKeys(blobKeys, jobGraph);
}
private static Collection uploadUserJars(JobID jobId, Collection userJars, BlobClient blobClient) throws IOException {
Collection blobKeys = new ArrayList<>(userJars.size());
for (Path jar : userJars) {
final PermanentBlobKey blobKey = blobClient.uploadFile(jobId, jar);
blobKeys.add(blobKey);
}
return blobKeys;
}
private static void setUserJarBlobKeys(Collection blobKeys, JobGraph jobGraph) {
blobKeys.forEach(jobGraph::addUserJarBlobKey);
}
/**
* Uploads the given user artifacts using the given {@link BlobClient}, and sets the appropriate blobkeys on the given {@link JobGraph}.
*
* @param jobGraph jobgraph requiring user artifacts
* @param artifactPaths artifacts to upload
* @param blobClient client to upload artifacts with
* @throws IOException if the upload fails
*/
private static void uploadAndSetUserArtifacts(JobGraph jobGraph, Collection> artifactPaths, BlobClient blobClient) throws IOException {
Collection> blobKeys = uploadUserArtifacts(jobGraph.getJobID(), artifactPaths, blobClient);
setUserArtifactBlobKeys(jobGraph, blobKeys);
}
private static Collection> uploadUserArtifacts(JobID jobID, Collection> userArtifacts, BlobClient blobClient) throws IOException {
Collection> blobKeys = new ArrayList<>(userArtifacts.size());
for (Tuple2 userArtifact : userArtifacts) {
// only upload local files
if (!userArtifact.f1.getFileSystem().isDistributedFS()) {
final PermanentBlobKey blobKey = blobClient.uploadFile(jobID, userArtifact.f1);
blobKeys.add(Tuple2.of(userArtifact.f0, blobKey));
}
}
return blobKeys;
}
private static void setUserArtifactBlobKeys(JobGraph jobGraph, Collection> blobKeys) throws IOException {
for (Tuple2 blobKey : blobKeys) {
jobGraph.setUserArtifactBlobKey(blobKey.f0, blobKey.f1);
}
jobGraph.writeUserArtifactEntriesToConfiguration();
}
}
