com.ibm.cloud.objectstorage.services.aspera.transfer.internal.AsperaDownloadDirectoryCallable Maven / Gradle / Ivy

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The IBM COS Java SDK for Amazon S3 module holds the client classes that are used for communicating with IBM Cloud Object Storage Service

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package com.ibm.cloud.objectstorage.services.aspera.transfer.internal;

import java.io.File;
import java.util.concurrent.Callable;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.ibm.cloud.objectstorage.event.ProgressListener;
import com.ibm.cloud.objectstorage.services.aspera.transfer.AsperaConfig;
import com.ibm.cloud.objectstorage.services.aspera.transfer.AsperaTransaction;
import com.ibm.cloud.objectstorage.services.aspera.transfer.AsperaTransferManager;
import com.ibm.cloud.objectstorage.services.aspera.transfer.TransferSpec;
import com.ibm.cloud.objectstorage.services.aspera.transfer.TransferSpecs;
import com.ibm.cloud.objectstorage.services.s3.model.FASPConnectionInfo;

public class AsperaDownloadDirectoryCallable implements Callable{
	private AsperaTransferManager transferManager;
	private String bucket;
	private File localDirectory;
	private String virtualDirectory;
	private AsperaConfig sessionDetails;
	private ProgressListener progressListener;

	public AsperaDownloadDirectoryCallable(AsperaTransferManager transferManager, String bucket, File localDirectory, String virtualDirectory, AsperaConfig sessionDetails, ProgressListener progressListener) {
		this.transferManager = transferManager;
		this.bucket = bucket;
		this.localDirectory = localDirectory;
		this.virtualDirectory = virtualDirectory;
		this.sessionDetails = sessionDetails;
		this.progressListener = progressListener;
	}

	@Override
	public AsperaTransaction call() throws Exception {
		FASPConnectionInfo faspConnectionInfo = transferManager.getFaspConnectionInfo(bucket);
		
		// Get transfer spec
		TransferSpecs transferSpecs = transferManager.getTransferSpec(faspConnectionInfo, virtualDirectory, localDirectory.getAbsolutePath(), "download");
		
		// Set destination root to default
		for(TransferSpec transferSpec: transferSpecs.getTransfer_specs())
			transferSpec.setDestination_root("/");

		//Check if the global setting for mulitsession has been applied
		transferManager.checkMultiSessionAllGlobalConfig(transferSpecs);

		// Modify transfer spec with custom settings if supplied
		if(sessionDetails != null)
			transferManager.modifyTransferSpec(sessionDetails, transferSpecs);
		
		ObjectMapper mapper = new ObjectMapper();
		String transferSpecStr = null;
		try {
			transferSpecStr = mapper.writeValueAsString(transferSpecs);

		} catch (JsonProcessingException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		
		AsperaTransaction asperaTransaction = transferManager.processTransfer(transferSpecStr, bucket, virtualDirectory, localDirectory.getAbsolutePath(), progressListener);
		
		return asperaTransaction;	
	}
	
	
}