| /* |
| * 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.beam.sdk.extensions.gcp.util; |
| |
| import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; |
| import com.google.api.client.http.HttpRequestInitializer; |
| import com.google.api.client.http.HttpTransport; |
| import com.google.api.client.json.JsonFactory; |
| import com.google.api.client.json.jackson2.JacksonFactory; |
| import com.google.api.services.storage.Storage; |
| import com.google.auth.Credentials; |
| import com.google.auth.http.HttpCredentialsAdapter; |
| import com.google.cloud.hadoop.util.ChainingHttpRequestInitializer; |
| import java.io.IOException; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.nio.file.Paths; |
| import java.security.GeneralSecurityException; |
| import org.apache.beam.sdk.extensions.gcp.auth.NullCredentialInitializer; |
| import org.apache.beam.sdk.extensions.gcp.options.GcsOptions; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableList; |
| |
| /** Helpers for cloud communication. */ |
| public class Transport { |
| |
| private static class SingletonHelper { |
| /** Global instance of the JSON factory. */ |
| private static final JsonFactory JSON_FACTORY; |
| |
| /** Global instance of the HTTP transport. */ |
| private static final HttpTransport HTTP_TRANSPORT; |
| |
| static { |
| try { |
| JSON_FACTORY = JacksonFactory.getDefaultInstance(); |
| HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport(); |
| } catch (GeneralSecurityException | IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| public static HttpTransport getTransport() { |
| return SingletonHelper.HTTP_TRANSPORT; |
| } |
| |
| public static JsonFactory getJsonFactory() { |
| return SingletonHelper.JSON_FACTORY; |
| } |
| |
| private static class ApiComponents { |
| public String rootUrl; |
| public String servicePath; |
| |
| public ApiComponents(String root, String path) { |
| this.rootUrl = root; |
| this.servicePath = path; |
| } |
| } |
| |
| private static ApiComponents apiComponentsFromUrl(String urlString) { |
| try { |
| URL url = new URL(urlString); |
| String rootUrl = |
| url.getProtocol() |
| + "://" |
| + url.getHost() |
| + (url.getPort() > 0 ? ":" + url.getPort() : ""); |
| return new ApiComponents(rootUrl, url.getPath()); |
| } catch (MalformedURLException e) { |
| throw new RuntimeException("Invalid URL: " + urlString); |
| } |
| } |
| |
| /** Returns a Cloud Storage client builder using the specified {@link GcsOptions}. */ |
| public static Storage.Builder newStorageClient(GcsOptions options) { |
| String servicePath = options.getGcsEndpoint(); |
| Storage.Builder storageBuilder = |
| new Storage.Builder( |
| getTransport(), |
| getJsonFactory(), |
| chainHttpRequestInitializer( |
| options.getGcpCredential(), |
| // Do not log the code 404. Code up the stack will deal with 404's if needed, |
| // and |
| // logging it by default clutters the output during file staging. |
| new RetryHttpRequestInitializer( |
| ImmutableList.of(404), new UploadIdResponseInterceptor()))) |
| .setApplicationName(options.getAppName()) |
| .setGoogleClientRequestInitializer(options.getGoogleApiTrace()); |
| if (servicePath != null) { |
| ApiComponents components = apiComponentsFromUrl(servicePath); |
| storageBuilder.setRootUrl(components.rootUrl); |
| storageBuilder.setServicePath(components.servicePath); |
| storageBuilder.setBatchPath(Paths.get("batch/", components.servicePath).toString()); |
| } |
| return storageBuilder; |
| } |
| |
| private static HttpRequestInitializer chainHttpRequestInitializer( |
| Credentials credential, HttpRequestInitializer httpRequestInitializer) { |
| if (credential == null) { |
| return new ChainingHttpRequestInitializer( |
| new NullCredentialInitializer(), httpRequestInitializer); |
| } else { |
| return new ChainingHttpRequestInitializer( |
| new HttpCredentialsAdapter(credential), httpRequestInitializer); |
| } |
| } |
| } |