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74 lines
2.4 KiB
Java
74 lines
2.4 KiB
Java
/**
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*
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*/
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package org.gcube.contentmanagement.blobstorage.service.operation;
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import org.gcube.contentmanagement.blobstorage.resource.MyFile;
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import org.gcube.contentmanagement.blobstorage.transport.backend.RemoteBackendException;
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import org.bson.types.ObjectId;
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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.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* Implements a Exist operation: check if a given object exist
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* @author Roberto Cirillo (ISTI - CNR) 2018
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*
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*/
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public class Exist extends Operation{
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/**
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* Logger for this class
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*/
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final Logger logger=LoggerFactory.getLogger(Exist.class);
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public Exist(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 doIt(MyFile myFile) throws RemoteBackendException{
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// TransportManagerFactory tmf= new TransportManagerFactory(server, user, password);
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// TransportManager tm=tmf.getTransport(backendType, myFile.getGcubeMemoryType(), dbNames, myFile.getWriteConcern(), myFile.getReadPreference());
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TransportManager tm=getTransport(myFile);
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boolean isPresent=false;
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try {
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isPresent = tm.exist(bucket);
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} catch (Exception e) {
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tm.close();
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throw new RemoteBackendException(" Error in Exist operation ", e.getCause()); }
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if (logger.isDebugEnabled()) {
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logger.debug(" PATH " + bucket);
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}
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return isPresent+"";
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}
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@Override
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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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// String[] dirs= remotePath.split(file_separator);
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if(logger.isDebugEnabled())
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logger.debug("remotePath: "+remotePath);
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String buck=null;
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boolean isId=ObjectId.isValid(remotePath);
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if(!isId){
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buck = new BucketCoding().bucketFileCoding(remotePath, rootArea);
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return bucket=buck;
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}else{
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return bucket=remotePath;
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}
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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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throw new IllegalArgumentException("Input/Output stream is not compatible with Exist operation");
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}
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}
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