Package org.yamcs.yarch

Class FileSystemBucket

java.lang.Object

org.yamcs.yarch.FileSystemBucket

All Implemented Interfaces:

Bucket

public class FileSystemBucket
extends Object
implements Bucket

Constructor Summary

Constructors

Constructor	Description
FileSystemBucket(String bucketName, Path root)

Method Summary

Modifier and Type	Method	Description
void	deleteObject(String objectName)
Tablespace.ObjectProperties	findObject(String objectName)	retrieve the object properties or null if not such an object exist
Path	getBucketRoot()
String	getName()	get the bucket name
byte[]	getObject(String objectName)	Retrieve object from the bucket.
List<Tablespace.ObjectProperties>	listObjects(String prefix, Predicate<Tablespace.ObjectPropertiesOrBuilder> p)	retrieve objects whose name start with prefix and that match the condition Note that searching by prefix is cheap, the condition will be evaluated for all objects that match the prefix
void	putObject(String objectName, String contentType, Map<String,String> metadata, byte[] objectData)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.yamcs.yarch.Bucket

listObjects, listObjects, listObjects

Constructor Detail

FileSystemBucket

public FileSystemBucket(String bucketName,
                        Path root)
                 throws IOException

Throws:

IOException

Method Detail

getName

public String getName()

Description copied from interface: Bucket

get the bucket name

Specified by:

getName in interface Bucket

Returns:

listObjects

public List<Tablespace.ObjectProperties> listObjects(String prefix,
                                                     Predicate<Tablespace.ObjectPropertiesOrBuilder> p)
                                              throws IOException

Description copied from interface: Bucket

retrieve objects whose name start with prefix and that match the condition Note that searching by prefix is cheap, the condition will be evaluated for all objects that match the prefix

Specified by:

listObjects in interface Bucket

p - predicate to be matched by the returned objects

Returns:

list of objects

Throws:

IOException

putObject

public void putObject(String objectName,
                      String contentType,
                      Map<String,String> metadata,
                      byte[] objectData)
               throws IOException

Specified by:

putObject in interface Bucket

Throws:

IOException

getObject

public byte[] getObject(String objectName)
                 throws IOException

Description copied from interface: Bucket

Retrieve object from the bucket. Returns null if object does not exist.

Specified by:

getObject in interface Bucket

Returns:

Throws:

IOException

deleteObject

public void deleteObject(String objectName)
                  throws IOException

Specified by:

deleteObject in interface Bucket

Throws:

IOException

findObject

public Tablespace.ObjectProperties findObject(String objectName)
                                       throws IOException

Description copied from interface: Bucket

retrieve the object properties or null if not such an object exist

Specified by:

findObject in interface Bucket

Returns:

Throws:

IOException

getBucketRoot

public Path getBucketRoot()