| /* |
| * 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.ftp; |
| |
| import org.apache.airavata.mft.core.ResourceMetadata; |
| import org.apache.airavata.mft.core.api.MetadataCollector; |
| import org.apache.airavata.mft.credential.stubs.ftp.FTPSecret; |
| import org.apache.airavata.mft.credential.stubs.ftp.FTPSecretGetRequest; |
| import org.apache.airavata.mft.resource.client.ResourceServiceClient; |
| import org.apache.airavata.mft.resource.client.ResourceServiceClientBuilder; |
| import org.apache.airavata.mft.resource.stubs.ftp.resource.FTPResource; |
| import org.apache.airavata.mft.resource.stubs.ftp.resource.FTPResourceGetRequest; |
| import org.apache.airavata.mft.secret.client.SecretServiceClient; |
| import org.apache.airavata.mft.secret.client.SecretServiceClientBuilder; |
| import org.apache.commons.net.ftp.FTPClient; |
| import org.apache.commons.net.ftp.FTPFile; |
| import org.apache.commons.net.ftp.FTPReply; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.InputStream; |
| |
| public class FTPMetadataCollector implements MetadataCollector { |
| |
| private static final Logger logger = LoggerFactory.getLogger(FTPMetadataCollector.class); |
| |
| private String resourceServiceHost; |
| private int resourceServicePort; |
| private String secretServiceHost; |
| private int secretServicePort; |
| private boolean initialized = false; |
| |
| @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("FTP Metadata Collector is not initialized"); |
| } |
| } |
| |
| @Override |
| public ResourceMetadata getGetResourceMetadata(String resourceId, String credentialToken) { |
| |
| checkInitialized(); |
| ResourceServiceClient resourceClient = ResourceServiceClientBuilder.buildClient(resourceServiceHost, resourceServicePort); |
| FTPResource ftpResource = resourceClient.ftp().getFTPResource(FTPResourceGetRequest.newBuilder().setResourceId(resourceId).build()); |
| SecretServiceClient secretClient = SecretServiceClientBuilder.buildClient(secretServiceHost, secretServicePort); |
| FTPSecret ftpSecret = secretClient.ftp().getFTPSecret(FTPSecretGetRequest.newBuilder().setSecretId(credentialToken).build()); |
| |
| ResourceMetadata resourceMetadata = new ResourceMetadata(); |
| FTPClient ftpClient = null; |
| try { |
| ftpClient = FTPTransportUtil.getFTPClient(ftpResource, ftpSecret); |
| logger.info("Fetching metadata for resource {} in {}", ftpResource.getResourcePath(), ftpResource.getFtpStorage().getHost()); |
| |
| FTPFile ftpFile = ftpClient.mlistFile(ftpResource.getResourcePath()); |
| |
| if (ftpFile != null) { |
| resourceMetadata.setResourceSize(ftpFile.getSize()); |
| resourceMetadata.setUpdateTime(ftpFile.getTimestamp().getTimeInMillis()); |
| if (ftpClient.hasFeature("MD5") && FTPReply.isPositiveCompletion(ftpClient.sendCommand("MD5 " + ftpResource.getResourcePath()))) { |
| String[] replies = ftpClient.getReplyStrings(); |
| resourceMetadata.setMd5sum(replies[0]); |
| } else { |
| logger.warn("MD5 fetch error out {}", ftpClient.getReplyString()); |
| } |
| } |
| } catch (Exception e) { |
| logger.warn("Failed to fetch md5 for FTP resource {}", resourceId, e); |
| } finally { |
| FTPTransportUtil.disconnectFTP(ftpClient); |
| } |
| |
| return resourceMetadata; |
| } |
| |
| @Override |
| public Boolean isAvailable(String resourceId, String credentialToken) { |
| |
| checkInitialized(); |
| |
| ResourceServiceClient resourceClient = ResourceServiceClientBuilder.buildClient(resourceServiceHost, resourceServicePort); |
| FTPResource ftpResource = resourceClient.ftp().getFTPResource(FTPResourceGetRequest.newBuilder().setResourceId(resourceId).build()); |
| SecretServiceClient secretClient = SecretServiceClientBuilder.buildClient(secretServiceHost, secretServicePort); |
| FTPSecret ftpSecret = secretClient.ftp().getFTPSecret(FTPSecretGetRequest.newBuilder().setSecretId(credentialToken).build()); |
| |
| FTPClient ftpClient = null; |
| try { |
| ftpClient = FTPTransportUtil.getFTPClient(ftpResource, ftpSecret); |
| InputStream inputStream = ftpClient.retrieveFileStream(ftpResource.getResourcePath()); |
| |
| return !(inputStream == null || ftpClient.getReplyCode() == 550); |
| } catch (Exception e) { |
| logger.error("FTP client initialization failed ", e); |
| return false; |
| } finally { |
| FTPTransportUtil.disconnectFTP(ftpClient); |
| } |
| } |
| } |
| |