JShivali commented on a change in pull request #11: URL: https://github.com/apache/airavata-mft/pull/11#discussion_r418686862
########## File path: transport/gdrive-transport/src/main/java/org/apache/airavata/mft/transport/gdrive/GDriveReceiver.java ########## @@ -0,0 +1,128 @@ +/* + * 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.airavata.mft.transport.gdrive; + +import com.google.api.client.googleapis.auth.oauth2.GoogleCredential; +import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport; +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.drive.Drive; +import com.google.api.services.drive.DriveScopes; +import com.google.api.services.drive.model.File; +import com.google.api.services.drive.model.FileList; +import org.apache.airavata.mft.core.ConnectorContext; +import org.apache.airavata.mft.core.api.Connector; +import org.apache.airavata.mft.resource.client.ResourceServiceClient; +import org.apache.airavata.mft.resource.service.GDriveResource; +import org.apache.airavata.mft.resource.service.GDriveResourceGetRequest; +import org.apache.airavata.mft.resource.service.ResourceServiceGrpc; +import org.apache.airavata.mft.secret.client.SecretServiceClient; +import org.apache.airavata.mft.secret.service.GDriveSecret; +import org.apache.airavata.mft.secret.service.GDriveSecretGetRequest; +import org.apache.airavata.mft.secret.service.SecretServiceGrpc; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.ByteArrayInputStream; +import java.io.InputStream; +import java.io.OutputStream; +import java.nio.charset.StandardCharsets; +import java.util.Collection; + +public class GDriveReceiver implements Connector { + + private static final Logger logger = LoggerFactory.getLogger(GDriveReceiver.class); + + private GDriveResource gdriveResource; + private Drive drive; + + @Override + public void init(String resourceId, String credentialToken, String resourceServiceHost, int resourceServicePort, String secretServiceHost, int secretServicePort) throws Exception { + ResourceServiceGrpc.ResourceServiceBlockingStub resourceClient = ResourceServiceClient.buildClient(resourceServiceHost, resourceServicePort); + this.gdriveResource = resourceClient.getGDriveResource(GDriveResourceGetRequest.newBuilder().setResourceId(resourceId).build()); + + SecretServiceGrpc.SecretServiceBlockingStub secretClient = SecretServiceClient.buildClient(secretServiceHost, secretServicePort); + GDriveSecret gdriveSecret = secretClient.getGDriveSecret(GDriveSecretGetRequest.newBuilder().setSecretId(credentialToken).build()); + + HttpTransport transport = GoogleNetHttpTransport.newTrustedTransport(); + JsonFactory jsonFactory = new JacksonFactory(); + String jsonString = gdriveSecret.getCredentialsJson(); + GoogleCredential credential = GoogleCredential.fromStream(new ByteArrayInputStream(jsonString.getBytes(StandardCharsets.UTF_8)), transport, jsonFactory); + if (credential.createScopedRequired()) { + Collection<String> scopes = DriveScopes.all(); + credential = credential.createScoped(scopes); + } + drive = new Drive.Builder(transport, jsonFactory, credential).build(); + } + + @Override + public void destroy() { + } + + @Override + public void startStream(ConnectorContext context) throws Exception { + logger.info("Starting GDrive Receiver stream for transfer {}", context.getTransferId()); + + String id = null; + FileList fileList = drive.files().list() + .setQ("name = '"+gdriveResource.getResourcePath()+"'") + .setFields("files(id,name,modifiedTime,md5Checksum,size)") + .execute(); + + for (File f : fileList.getFiles()) { + id = f.getId(); + } + + if (id == null) { + throw new IllegalStateException("GDrive Receiver was unable to retrieve the resource"); Review comment: Hi Dimuthu, Just to be clear, 1. Do you mean that the key in resources.json should be named something specific to google drive so that it is more meaningful (eg: instead of "resourcePath", maybe name it as "gdriveFileName"). 2. In secrets.json instead of naming the key as "credentialsJson" change it to maybe "clientSecret" ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
