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From GitBox <...@apache.org>
Subject [GitHub] [airavata-mft] nbafna04 commented on a change in pull request #11: MFT Google drive transport implementation
Date Sat, 02 May 2020 00:01:38 GMT

nbafna04 commented on a change in pull request #11:
URL: https://github.com/apache/airavata-mft/pull/11#discussion_r418784278



##########
File path: transport/gdrive-transport/src/main/java/org/apache/airavata/mft/transport/gdrive/GDriveMetadataCollector.java
##########
@@ -0,0 +1,146 @@
+/*
+ * 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.ResourceMetadata;
+import org.apache.airavata.mft.core.api.MetadataCollector;
+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 java.io.ByteArrayInputStream;
+import java.nio.charset.StandardCharsets;
+import java.util.Collection;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class GDriveMetadataCollector implements MetadataCollector {
+
+    private String resourceServiceHost;
+    private int resourceServicePort;
+    private String secretServiceHost;
+    private int secretServicePort;
+    boolean initialized = false;
+
+    private static final Logger logger = LoggerFactory.getLogger(GDriveMetadataCollector.class);
+
+
+    @Override
+    public void init(String resourceServiceHost, int resourceServicePort, String secretServiceHost,
int secretServicePort) {
+        this.resourceServiceHost = resourceServiceHost;
+        this.resourceServicePort = resourceServicePort;
+        this.secretServiceHost = secretServiceHost;
+        this.secretServicePort = secretServicePort;
+        this.initialized = true;
+    }
+
+
+    private void checkInitialized() {
+        if (!initialized) {
+            throw new IllegalStateException("GDrive Metadata Collector is not initialized");
+        }
+    }
+
+    @Override
+    public ResourceMetadata getGetResourceMetadata(String resourceId, String credentialToken)
throws Exception {
+        checkInitialized();
+        ResourceServiceGrpc.ResourceServiceBlockingStub resourceClient = ResourceServiceClient.buildClient(resourceServiceHost,
resourceServicePort);
+        GDriveResource 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 drive = new Drive.Builder(transport, jsonFactory, credential).build();
+        ResourceMetadata metadata = new ResourceMetadata();
+        FileList fileList = drive.files().list()
+                .setQ("name = '"+gdriveResource.getResourcePath()+"'")
+                .setFields("files(id,name,modifiedTime,md5Checksum,size,mimeType)")
+                .execute();
+
+        for (File f : fileList.getFiles()) {
+                metadata.setMd5sum(f.getMd5Checksum());
+                metadata.setUpdateTime(f.getModifiedTime().getValue());
+                metadata.setResourceSize(f.getSize().longValue());
+        }
+
+        return metadata;
+    }
+
+    @Override
+    public Boolean isAvailable(String resourceId, String credentialToken) throws Exception
{
+        checkInitialized();
+        String id = null;
+        ResourceServiceGrpc.ResourceServiceBlockingStub resourceClient = ResourceServiceClient.buildClient(resourceServiceHost,
resourceServicePort);
+        GDriveResource 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 drive = new Drive.Builder(transport, jsonFactory, credential).build();
+
+        FileList fileList = drive.files().list()
+                .setQ("name = '"+gdriveResource.getResourcePath()+"'")

Review comment:
       Done




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