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HADOOP-17194. Adding Context class for AbfsClient in ABFS (#2216) 

Contributed by Mehakmeet Singh.
This commit is contained in:
Mehakmeet Singh 2020-08-27 15:57:00 +05:30 committed by GitHub
parent 41182a9b6d
commit d1c60a53f6
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5 changed files with 161 additions and 25 deletions
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41
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java
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@ -84,6 +84,8 @@ import org.apache.hadoop.fs.azurebfs.oauth2.IdentityTransformer;
import org.apache.hadoop.fs.azurebfs.oauth2.IdentityTransformerInterface;
import org.apache.hadoop.fs.azurebfs.services.AbfsAclHelper;
import org.apache.hadoop.fs.azurebfs.services.AbfsClient;
import org.apache.hadoop.fs.azurebfs.services.AbfsClientContext;
import org.apache.hadoop.fs.azurebfs.services.AbfsClientContextBuilder;
import org.apache.hadoop.fs.azurebfs.services.AbfsCounters;
import org.apache.hadoop.fs.azurebfs.services.AbfsHttpOperation;
import org.apache.hadoop.fs.azurebfs.services.AbfsInputStream;
@ -146,6 +148,7 @@ public class AzureBlobFileSystemStore implements Closeable {
private final UserGroupInformation userGroupInformation;
private final IdentityTransformerInterface identityTransformer;
private final AbfsPerfTracker abfsPerfTracker;
private final AbfsCounters abfsCounters;
/**
* The set of directories where we should store files as append blobs.
@ -192,7 +195,8 @@ public class AzureBlobFileSystemStore implements Closeable {
boolean usingOauth = (authType == AuthType.OAuth);
boolean useHttps = (usingOauth || abfsConfiguration.isHttpsAlwaysUsed()) ? true : isSecureScheme;
this.abfsPerfTracker = new AbfsPerfTracker(fileSystemName, accountName, this.abfsConfiguration);
initializeClient(uri, fileSystemName, accountName, useHttps, abfsCounters);
this.abfsCounters = abfsCounters;
initializeClient(uri, fileSystemName, accountName, useHttps);
final Class<? extends IdentityTransformerInterface> identityTransformerClass =
configuration.getClass(FS_AZURE_IDENTITY_TRANSFORM_CLASS, IdentityTransformer.class,
IdentityTransformerInterface.class);
@ -1213,8 +1217,19 @@ public class AzureBlobFileSystemStore implements Closeable {
return isKeyForDirectorySet(key, azureAtomicRenameDirSet);
}
/**
* A on-off operation to initialize AbfsClient for AzureBlobFileSystem
* Operations.
*
* @param uri Uniform resource identifier for Abfs.
* @param fileSystemName Name of the fileSystem being used.
* @param accountName Name of the account being used to access Azure
* data store.
* @param isSecure Tells if https is being used or http.
* @throws IOException
*/
private void initializeClient(URI uri, String fileSystemName,
String accountName, boolean isSecure, AbfsCounters abfsCounters)
String accountName, boolean isSecure)
throws IOException {
if (this.client != null) {
return;
@ -1261,16 +1276,30 @@ public class AzureBlobFileSystemStore implements Closeable {
LOG.trace("Initializing AbfsClient for {}", baseUrl);
if (tokenProvider != null) {
this.client = new AbfsClient(baseUrl, creds, abfsConfiguration,
new ExponentialRetryPolicy(abfsConfiguration.getMaxIoRetries()),
tokenProvider, abfsPerfTracker, abfsCounters);
tokenProvider,
populateAbfsClientContext());
} else {
this.client = new AbfsClient(baseUrl, creds, abfsConfiguration,
new ExponentialRetryPolicy(abfsConfiguration.getMaxIoRetries()),
sasTokenProvider, abfsPerfTracker, abfsCounters);
sasTokenProvider,
populateAbfsClientContext());
}
LOG.trace("AbfsClient init complete");
}
/**
* Populate a new AbfsClientContext instance with the desired properties.
*
* @return an instance of AbfsClientContext.
*/
private AbfsClientContext populateAbfsClientContext() {
return new AbfsClientContextBuilder()
.withExponentialRetryPolicy(
new ExponentialRetryPolicy(abfsConfiguration.getMaxIoRetries()))
.withAbfsCounters(abfsCounters)
.withAbfsPerfTracker(abfsPerfTracker)
.build();
}
private String getOctalNotation(FsPermission fsPermission) {
Preconditions.checkNotNull(fsPermission, "fsPermission");
return String.format(AbfsHttpConstants.PERMISSION_FORMAT, fsPermission.toOctal());

24
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsClient.java
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@ -77,15 +77,13 @@ public class AbfsClient implements Closeable {
private AbfsClient(final URL baseUrl, final SharedKeyCredentials sharedKeyCredentials,
final AbfsConfiguration abfsConfiguration,
final ExponentialRetryPolicy exponentialRetryPolicy,
final AbfsPerfTracker abfsPerfTracker,
final AbfsCounters abfsCounters) {
final AbfsClientContext abfsClientContext) {
this.baseUrl = baseUrl;
this.sharedKeyCredentials = sharedKeyCredentials;
String baseUrlString = baseUrl.toString();
this.filesystem = baseUrlString.substring(baseUrlString.lastIndexOf(FORWARD_SLASH) + 1);
this.abfsConfiguration = abfsConfiguration;
this.retryPolicy = exponentialRetryPolicy;
this.retryPolicy = abfsClientContext.getExponentialRetryPolicy();
this.accountName = abfsConfiguration.getAccountName().substring(0, abfsConfiguration.getAccountName().indexOf(AbfsHttpConstants.DOT));
this.authType = abfsConfiguration.getAuthType(accountName);
@ -105,29 +103,23 @@ public class AbfsClient implements Closeable {
}
this.userAgent = initializeUserAgent(abfsConfiguration, sslProviderName);
this.abfsPerfTracker = abfsPerfTracker;
this.abfsCounters = abfsCounters;
this.abfsPerfTracker = abfsClientContext.getAbfsPerfTracker();
this.abfsCounters = abfsClientContext.getAbfsCounters();
}
public AbfsClient(final URL baseUrl, final SharedKeyCredentials sharedKeyCredentials,
final AbfsConfiguration abfsConfiguration,
final ExponentialRetryPolicy exponentialRetryPolicy,
final AccessTokenProvider tokenProvider,
final AbfsPerfTracker abfsPerfTracker,
final AbfsCounters abfsCounters) {
this(baseUrl, sharedKeyCredentials, abfsConfiguration,
exponentialRetryPolicy, abfsPerfTracker, abfsCounters);
final AbfsClientContext abfsClientContext) {
this(baseUrl, sharedKeyCredentials, abfsConfiguration, abfsClientContext);
this.tokenProvider = tokenProvider;
}
public AbfsClient(final URL baseUrl, final SharedKeyCredentials sharedKeyCredentials,
final AbfsConfiguration abfsConfiguration,
final ExponentialRetryPolicy exponentialRetryPolicy,
final SASTokenProvider sasTokenProvider,
final AbfsPerfTracker abfsPerfTracker,
final AbfsCounters abfsCounters) {
this(baseUrl, sharedKeyCredentials, abfsConfiguration,
exponentialRetryPolicy, abfsPerfTracker, abfsCounters);
final AbfsClientContext abfsClientContext) {
this(baseUrl, sharedKeyCredentials, abfsConfiguration, abfsClientContext);
this.sasTokenProvider = sasTokenProvider;
}

51
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsClientContext.java Normal file
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@ -0,0 +1,51 @@
/**
* 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.hadoop.fs.azurebfs.services;
/**
* Class to hold extra configurations for AbfsClient and further classes
* inside AbfsClient.
*/
public class AbfsClientContext {
private final ExponentialRetryPolicy exponentialRetryPolicy;
private final AbfsPerfTracker abfsPerfTracker;
private final AbfsCounters abfsCounters;
AbfsClientContext(
ExponentialRetryPolicy exponentialRetryPolicy,
AbfsPerfTracker abfsPerfTracker,
AbfsCounters abfsCounters) {
this.exponentialRetryPolicy = exponentialRetryPolicy;
this.abfsPerfTracker = abfsPerfTracker;
this.abfsCounters = abfsCounters;
}
public ExponentialRetryPolicy getExponentialRetryPolicy() {
return exponentialRetryPolicy;
}
public AbfsPerfTracker getAbfsPerfTracker() {
return abfsPerfTracker;
}
public AbfsCounters getAbfsCounters() {
return abfsCounters;
}
}

58
hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsClientContextBuilder.java Normal file
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@ -0,0 +1,58 @@
/**
* 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.hadoop.fs.azurebfs.services;
/**
* A builder for AbfsClientContext class with different options to select and
* build from.
*/
public class AbfsClientContextBuilder {
private ExponentialRetryPolicy exponentialRetryPolicy;
private AbfsPerfTracker abfsPerfTracker;
private AbfsCounters abfsCounters;
public AbfsClientContextBuilder withExponentialRetryPolicy(
final ExponentialRetryPolicy exponentialRetryPolicy) {
this.exponentialRetryPolicy = exponentialRetryPolicy;
return this;
}
public AbfsClientContextBuilder withAbfsPerfTracker(
final AbfsPerfTracker abfsPerfTracker) {
this.abfsPerfTracker = abfsPerfTracker;
return this;
}
public AbfsClientContextBuilder withAbfsCounters(final AbfsCounters abfsCounters) {
this.abfsCounters = abfsCounters;
return this;
}
/**
* Build the context and get the instance with the properties selected.
*
* @return an instance of AbfsClientContext.
*/
public AbfsClientContext build() {
//validate the values
return new AbfsClientContext(exponentialRetryPolicy, abfsPerfTracker,
abfsCounters);
}
}

12
hadoop-tools/hadoop-azure/src/test/java/org/apache/hadoop/fs/azurebfs/services/TestAbfsClient.java
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@ -103,8 +103,9 @@ public final class TestAbfsClient {
private String getUserAgentString(AbfsConfiguration config,
boolean includeSSLProvider) throws MalformedURLException {
AbfsClientContext abfsClientContext = new AbfsClientContextBuilder().build();
AbfsClient client = new AbfsClient(new URL("https://azure.com"), null,
config, null, (AccessTokenProvider) null, null, null);
config, (AccessTokenProvider) null, abfsClientContext);
String sslProviderName = null;
if (includeSSLProvider) {
sslProviderName = DelegatingSSLSocketFactory.getDefaultFactory()
@ -257,6 +258,12 @@ public final class TestAbfsClient {
abfsConfig.getAccountName(),
abfsConfig);
AbfsClientContext abfsClientContext =
new AbfsClientContextBuilder().withAbfsPerfTracker(tracker)
.withExponentialRetryPolicy(
new ExponentialRetryPolicy(abfsConfig.getMaxIoRetries()))
.build();
// Create test AbfsClient
AbfsClient testClient = new AbfsClient(
baseAbfsClientInstance.getBaseUrl(),
@ -267,11 +274,10 @@ public final class TestAbfsClient {
abfsConfig.getStorageAccountKey())
: null),
abfsConfig,
new ExponentialRetryPolicy(abfsConfig.getMaxIoRetries()),
(currentAuthType == AuthType.OAuth
? abfsConfig.getTokenProvider()
: null),
tracker, null);
abfsClientContext);
return testClient;
}