Package org.mycore.oai

Class MCROAISearchManager

java.lang.Object

org.mycore.oai.MCROAISearchManager

public class MCROAISearchManager
extends Object

Search manager of the mycore OAI-PMH implementation. Creates a new MCROAISearcher instance for each searchHeader(MetadataFormat, MCRSet, Instant, Instant) and searchRecord(MetadataFormat, MCRSet, Instant, Instant) call. The resumption token created by those methods can be reused for later calls to the same searcher. A searcher is dropped after an expiration time. The time increases for each query call.

Due to token based querying it is not possible to set a current position for the resumption token. Its always set to -1.

Author:

Matthias Eichner

Field Summary

Fields

Modifier and Type	Field	Description
protected MCROAIIdentify	identify
protected static final Logger	LOGGER
protected static int	MAX_AGE
protected MCROAIObjectManager	objManager
protected int	partitionSize
protected Map<String,MCROAISearcher>	resultMap
protected MCROAISetManager	setManager
protected static final String	TOKEN_DELIMITER

Constructor Summary

Constructors

Constructor	Description
MCROAISearchManager()

Method Summary

Modifier and Type	Method	Description
Optional<org.mycore.oai.pmh.Header>	getHeader(String oaiId)
protected org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header>	getHeaderList(MCROAISearcher searcher, MCROAIResult result)
int	getPartitionSize()
protected org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record>	getRecordList(MCROAISearcher searcher, MCROAIResult result)
static MCROAISearcher	getSearcher(MCROAIIdentify identify, org.mycore.oai.pmh.MetadataFormat format, int partitionSize, MCROAISetManager setManager, MCROAIObjectManager objectManager)
String	getSearchId(String token)
String	getTokenCursor(String token)
void	init(MCROAIIdentify identify, MCROAIObjectManager objManager, MCROAISetManager setManager, int partitionSize)
org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header>	searchHeader(String resumptionToken)
org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header>	searchHeader(org.mycore.oai.pmh.MetadataFormat format, MCRSet set, Instant from, Instant until)
org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record>	searchRecord(String resumptionToken)
org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record>	searchRecord(org.mycore.oai.pmh.MetadataFormat format, MCRSet set, Instant from, Instant until)
protected void	setResumptionToken(org.mycore.oai.pmh.OAIDataList<?> dataList, MCROAISearcher searcher, MCROAIResult result)

Methods inherited from class java.lang.Object

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

Field Details

LOGGER

protected static final Logger LOGGER

TOKEN_DELIMITER

protected static final String TOKEN_DELIMITER

See Also:

• Constant Field Values

MAX_AGE

protected static int MAX_AGE

resultMap

protected Map<String,MCROAISearcher> resultMap

identify

protected MCROAIIdentify identify

objManager

protected MCROAIObjectManager objManager

setManager

protected MCROAISetManager setManager

partitionSize

protected int partitionSize

Constructor Details

MCROAISearchManager

public MCROAISearchManager()

Method Details

init

public void init(MCROAIIdentify identify,
 MCROAIObjectManager objManager,
 MCROAISetManager setManager,
 int partitionSize)

getHeader

public Optional<org.mycore.oai.pmh.Header> getHeader(String oaiId)

searchHeader

public org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header> searchHeader(String resumptionToken)
                                                                       throws org.mycore.oai.pmh.BadResumptionTokenException

Throws:

org.mycore.oai.pmh.BadResumptionTokenException

searchRecord

public org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record> searchRecord(String resumptionToken)
                                                                       throws org.mycore.oai.pmh.BadResumptionTokenException

Throws:

org.mycore.oai.pmh.BadResumptionTokenException

searchHeader

public org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header> searchHeader(org.mycore.oai.pmh.MetadataFormat format,
 MCRSet set,
 Instant from,
 Instant until)

searchRecord

public org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record> searchRecord(org.mycore.oai.pmh.MetadataFormat format,
 MCRSet set,
 Instant from,
 Instant until)

getRecordList

protected org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Record> getRecordList(MCROAISearcher searcher,
 MCROAIResult result)

getHeaderList

protected org.mycore.oai.pmh.OAIDataList<org.mycore.oai.pmh.Header> getHeaderList(MCROAISearcher searcher,
 MCROAIResult result)

getSearchId

public String getSearchId(String token)
                   throws org.mycore.oai.pmh.BadResumptionTokenException

Throws:

org.mycore.oai.pmh.BadResumptionTokenException

getTokenCursor

public String getTokenCursor(String token)
                      throws org.mycore.oai.pmh.BadResumptionTokenException

Throws:

org.mycore.oai.pmh.BadResumptionTokenException

setResumptionToken

protected void setResumptionToken(org.mycore.oai.pmh.OAIDataList<?> dataList,
 MCROAISearcher searcher,
 MCROAIResult result)

getPartitionSize

public int getPartitionSize()

getSearcher

public static MCROAISearcher getSearcher(MCROAIIdentify identify,
 org.mycore.oai.pmh.MetadataFormat format,
 int partitionSize,
 MCROAISetManager setManager,
 MCROAIObjectManager objectManager)