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113 lines
3.6 KiB
Java
113 lines
3.6 KiB
Java
package org.gcube.contentmanagement.blobstorage.service.operation;
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import org.bson.types.ObjectId;
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import org.gcube.contentmanagement.blobstorage.resource.MyFile;
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import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
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import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
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import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
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import org.gcube.contentmanagement.blobstorage.transport.backend.MongoIOManager;
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import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* Implements a download operation from the cluster: download a file object
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*
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*@author Roberto Cirillo (ISTI - CNR)
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*/
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public abstract class Download extends Operation{
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/**
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* Logger for this class
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*/
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// private static final GCUBELog logger = new GCUBELog(Download.class);
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final Logger logger=LoggerFactory.getLogger(Download.class);
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protected String localPath;
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protected String remotePath;
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protected OutputStream os;
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protected MyFile resource;
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public Download(String[] server, String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
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super(server, user, pwd, bucket, monitor, isChunk, backendType, dbs);
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}
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public String initOperation(MyFile file, String remotePath,
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String author, String[] server, String rootArea, boolean replaceOption) {
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this.localPath=file.getLocalPath();
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this.remotePath=remotePath;
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setResource(file);
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return getRemoteIdentifier(remotePath, rootArea);
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}
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public String doIt(MyFile myFile) throws RemoteBackendException{
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String id=null;
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if (logger.isDebugEnabled()) {
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logger.debug(" DOWNLOAD " + myFile.getRemotePath()
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+ " in bucket: " + getBucket());
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}
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try {
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id=get(this, myFile, false);
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} catch (Throwable e) {
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// TransportManagerFactory tmf=new TransportManagerFactory(getServer(), getUser(), getPassword());
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// TransportManager tm=tmf.getTransport(getBackendType(), myFile.getGcubeMemoryType(), getDbNames(), myFile.getWriteConcern(), myFile.getReadPreference());
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TransportManager tm=getTransport(myFile);
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tm.close();
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logger.error("Problem in download from: "+myFile.getRemotePath()+": "+e.getMessage());
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// e.printStackTrace();
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throw new RemoteBackendException(" Problem in download operation ", e.getCause());
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}
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return id;
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}
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@Override
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public String initOperation(MyFile resource, String remotePath,
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String author, String[] server, String rootArea) {
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// DirectoryBucket dirBuc=new DirectoryBucket(server, getUser(), getPassword(), remotePath, author);
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// For terrastore, the name of bucket is formed: path_____fileName_____author
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String bucketName=new BucketCoding().bucketFileCoding(remotePath, rootArea);
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// DirectoryEntity dirObject=null;
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this.os=resource.getOutputStream();
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setBucket(bucketName);
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return bucketName;
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}
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public abstract ObjectId execute(MongoIOManager mongoPrimaryInstance, MongoIOManager mongoSecondaryInstance) throws IOException;
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public MyFile getResource() {
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return resource;
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}
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public void setResource(MyFile resource) {
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this.resource = resource;
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}
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public String getLocalPath() {
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return localPath;
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}
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public void setLocalPath(String localPath) {
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this.localPath = localPath;
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}
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public String getRemotePath() {
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return remotePath;
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}
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public void setRemotePath(String remotePath) {
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this.remotePath = remotePath;
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}
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public OutputStream getOs() {
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return os;
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}
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public void setOs(OutputStream os) {
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this.os = os;
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}
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}
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