storage-manager-core/src/main/java/org/gcube/contentmanagement/blobstorage/service/operation/Remove.java

89 lines
3.2 KiB
Java

package org.gcube.contentmanagement.blobstorage.service.operation;
import org.gcube.contentmanagement.blobstorage.resource.MyFile;
import org.gcube.contentmanagement.blobstorage.service.directoryOperation.BucketCoding;
import org.gcube.contentmanagement.blobstorage.transport.TransportManager;
import org.gcube.contentmanagement.blobstorage.transport.TransportManagerFactory;
import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
import org.gcube.contentmanagement.blobstorage.transport.backend.util.Costants;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Implements a remove operation from the cluster: remove a file object
* @author Roberto Cirillo (ISTI - CNR)
*
*/
public class Remove extends Operation{
/**
* Logger for this class
*/
final Logger logger=LoggerFactory.getLogger(Remove.class);
public Remove(String[] server, String user, String pwd, String bucket, Monitor monitor, boolean isChunk, String backendType, String[] dbs) {
super(server,user,pwd, bucket, monitor, isChunk, backendType, dbs);
}
public String doIt(MyFile myFile) throws RemoteBackendException{
TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
removeBucket(tm, bucket, myFile);
if (logger.isDebugEnabled()) {
logger.debug(" REMOVE " + bucket);
}
return "removed";
}
@Override
public String initOperation(MyFile file, String remotePath,
String author, String[] server, String rootArea, boolean replaceOption) {
String[] dirs= remotePath.split(Costants.FILE_SEPARATOR);
if(logger.isDebugEnabled())
logger.debug("remotePath: "+remotePath);
String buck=null;
// in this case the remote path is really a remote path and not a objectId
if((dirs != null) && ((dirs.length >1) || ((dirs.length==1) && (dirs[0].length()<23)))){
BucketCoding bc=new BucketCoding();
buck=bc.bucketFileCoding(remotePath, rootArea);
if(!Costants.CLIENT_TYPE.equalsIgnoreCase("mongo")){
buck=buck.replaceAll(Costants.FILE_SEPARATOR, Costants.SEPARATOR);
//remove directory bucket
}
}else{
// is an object id
buck=remotePath;
}
// bucketName=new BucketCoding().bucketFileCoding(remotePath, author, rootArea);
return bucket=buck;
}
/**
* Remove a remote directory identifies by bucketName
* @param bucketName indicates the remote directory to remove
* @throws RemoteBackendException
*/
public void removeBucket(TransportManager tm, String bucketName, MyFile resource) throws RemoteBackendException {
if(logger.isDebugEnabled())
logger.debug("removing file bucket: "+bucketName);
try {
tm.removeRemoteFile(bucket, resource);
} catch (Exception e) {
tm.close();
logger.error("Problem in remove: "+bucket+": "+e.getMessage());
throw new RemoteBackendException(" Error in remove operation ", e.getCause());
}
}
@Override
public String initOperation(MyFile resource, String RemotePath,
String author, String[] server, String rootArea) {
throw new IllegalArgumentException("Input/Output stream is not compatible with remove operation");
}
}