Package org.fcrepo.migration.idmappers

Class OpaqueIDMapper

java.lang.Object

org.fcrepo.migration.idmappers.OpaqueIDMapper

All Implemented Interfaces:

MigrationIDMapper

public class OpaqueIDMapper
extends Object
implements MigrationIDMapper

An IDMapper implementation that maps identifiers by simply creating new objects in the Fedora 4 instance and thus delegating to whatever pid minter is configured for the repository. Unlike other ID mappers, just getting an ID through mapObjectPath creates an object in the repository! Meanwhile, it maintains a persistent copy of the mapping in a Lucene Index on the filesystem.

Author:

Mike Durbin

Constructor Summary

Constructors

Constructor	Description
OpaqueIDMapper(File cachedIDIndexDir, Fedora4Client f4Client)	A constructor.

Method Summary

Modifier and Type	Method	Description
String	getBaseURL()
String	mapDatastreamPath(String pid, String dsid)	Takes a Fedora 3 PID and DSID and returns the path that datastream would have in Fedora 4.
String	mapObjectPath(String pid)	Takes a Fedora 3 pid and returns the path that object would have in Fedora 4.

Methods inherited from class java.lang.Object

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

Constructor Detail

OpaqueIDMapper

public OpaqueIDMapper(File cachedIDIndexDir,
                      Fedora4Client f4Client)
               throws IOException

A constructor.

Parameters:

cachedIDIndexDir - the directory (or null) where the index of generated pids should be maintained

f4Client - a Fedora 4 client to mediate interactions with the repository

Throws:

IOException - IO exception creating temp and index files/directories

Method Detail

mapObjectPath

public String mapObjectPath(String pid)

Description copied from interface: MigrationIDMapper

Takes a Fedora 3 pid and returns the path that object would have in Fedora 4.

Specified by:

mapObjectPath in interface MigrationIDMapper

Parameters:

pid - a PID for a Fedora 3 object.

Returns:

a path suitable for use in Fedora 4.

mapDatastreamPath

public String mapDatastreamPath(String pid,
                                String dsid)

Description copied from interface: MigrationIDMapper

Takes a Fedora 3 PID and DSID and returns the path that datastream would have in Fedora 4.

Specified by:

mapDatastreamPath in interface MigrationIDMapper

Parameters:

pid - a PID for the Fedora 3 object

dsid - the DS id for the Fedora 3 datastream

Returns:

a path suitable for use in Fedora 4.

getBaseURL

public String getBaseURL()

Specified by:

getBaseURL in interface MigrationIDMapper

Returns:

the fedora 4 base URL. Paths returned by MigrationIDMapper.mapDatastreamPath(java.lang.String, java.lang.String) and MigrationIDMapper.mapObjectPath(java.lang.String) appended to this value will be resolvable URLs in the fedora 4 repository.