org.eclipse.smila.search.lucene.index
Class IndexConnection

java.lang.Object
  org.eclipse.smila.search.index.IndexConnection
      org.eclipse.smila.search.lucene.index.IndexConnection

public class IndexConnection
extends IndexConnection

The Class IndexConnection.

Author:

August Georg Schmidt (BROX)

Field Summary

static java.lang.String

DATE_FORMAT_PATTERN Date format pattern.

Constructor Summary

IndexConnection(java.lang.String indexName)
The Constructor.

Method Summary

protected void	addHighlightAnnotation(IQueryExpression dQE, java.lang.String recordId, AnyMap highlight, int fieldNo, java.lang.String attributeName, java.lang.String indexName) Adds a highlighting annotation on the given record and attribute
protected void	close() Close index connection.
protected Value	createValue(DataFactory f, int fieldNo, java.lang.String value) create value from string using the appropriate type method.
void	deleteDocument(java.lang.String id) Delete document from index.
boolean	docExists(java.lang.String id) Checks whether a document exists in index.
LuceneSearchResult	doQuery(IQueryExpression queryExpression, int startPos) Execute search query.
LuceneSearchResult	doQueryCallback(IndexSearcher indexSearcher, DQueryExpression queryExpression, int startPos) Do query callback for DoQueryOperation.
protected void	encodeTextField(DTextField tf)
Analyzer	getAnalyzer() Get Analyzer.
protected void	getResultValues(java.lang.String[] keys, int[] fields, java.lang.String[][] values)
protected java.lang.String[]	getResultValues(java.lang.String id, int fieldNo)
IQueryExpression	getSimpleSearchQuery(DQuery dQuery) Transform a simple search to the corresponding advanced search.
protected IQueryExpression	getTestQueryExpression(java.lang.String text)
protected void	insertDateParameter(DDateField field, IDFParameter configParameter, java.lang.String config, java.lang.StringBuffer sb)
protected void	insertNumberParameter(DNumberField field, INFParameter configParameter, java.lang.String config, java.lang.StringBuffer sb)
protected void	insertTextParameter(DTextField field, ITFParameter configParameter, java.lang.String config, java.lang.StringBuffer sb)
protected void	isSupportedValue(int fieldNo, java.lang.Object value)
void	learnDocument(Blackboard blackboard, java.lang.String id, java.util.Map<java.lang.String,java.lang.Integer> attributeMapping, java.util.Map<java.lang.String,java.lang.Integer> attachmentMapping) Add a document to index.
java.lang.String	padNumField(java.lang.String text) Enclose number in a fixed length text to allow range search.
protected void	startBurstmode() Start burst mode.
protected void	stopBurstmode() Stop burst mode.
void	unlock() Unlocks a locked index.

Methods inherited from class org.eclipse.smila.search.index.IndexConnection

doQuery, doQuery, doTestQuery, getIndex, getName, validateQuery

Methods inherited from class java.lang.Object

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

Field Detail

DATE_FORMAT_PATTERN

public static final java.lang.String DATE_FORMAT_PATTERN

Date format pattern.

See Also:

Constant Field Values

Constructor Detail

IndexConnection

public IndexConnection(java.lang.String indexName)
                throws IndexException

The Constructor.

Parameters:

indexName - Index name.

Throws:

IndexException - Unable to create index connection.

Method Detail

close

protected void close()

Close index connection.

Specified by:

close in class IndexConnection

See Also:

IndexConnection.close()

docExists

public boolean docExists(java.lang.String id)
                  throws IndexException

Checks whether a document exists in index.

Specified by:

docExists in class IndexConnection

Parameters:

id - the Id

Returns:

Whether a document exists.

Throws:

IndexException - Unable to check the document exists in index.

deleteDocument

public void deleteDocument(java.lang.String id)
                    throws IndexException

Delete document from index.

Specified by:

deleteDocument in class IndexConnection

Parameters:

id - the Id

Throws:

IndexException - Unable to delete document from index.

learnDocument

public void learnDocument(Blackboard blackboard,
                          java.lang.String id,
                          java.util.Map<java.lang.String,java.lang.Integer> attributeMapping,
                          java.util.Map<java.lang.String,java.lang.Integer> attachmentMapping)
                   throws IndexException,
                          BlackboardAccessException

Add a document to index.

Specified by:

learnDocument in class IndexConnection

Parameters:

blackboard - the BlackboardService

id - the Id of the record to add.

attributeMapping - Map containing the attribute to FieldNo mapping

attachmentMapping - Map containing the attachment to FieldNo mapping

Throws:

IndexException - Unable to add document to index.

BlackboardAccessException - if errors occur accessing the Blackboard

padNumField

public java.lang.String padNumField(java.lang.String text)

Enclose number in a fixed length text to allow range search.

Parameters:

text - Number to pad.

Returns:

Padded number.

getAnalyzer

public Analyzer getAnalyzer()

Get Analyzer.

Returns:

Analyzer.

startBurstmode

protected void startBurstmode()
                       throws IndexException

Start burst mode.

Specified by:

startBurstmode in class IndexConnection

Throws:

IndexException - Unable to start burst mode.

See Also:

IndexConnection.startBurstmode()

stopBurstmode

protected void stopBurstmode()
                      throws IndexException

Stop burst mode.

Specified by:

stopBurstmode in class IndexConnection

Throws:

IndexException - Unable to stop burst mode.

See Also:

IndexConnection.stopBurstmode()

getSimpleSearchQuery

public IQueryExpression getSimpleSearchQuery(DQuery dQuery)
                                      throws IndexException,
                                             NodeTransformerException,
                                             TemplateException

Transform a simple search to the corresponding advanced search.

Specified by:

getSimpleSearchQuery in class IndexConnection

Parameters:

dQuery - Simple search.

Returns:

Advanced search.

Throws:

IndexException - Unable to get advanced search.

NodeTransformerException - Unable to perform node transformation.

TemplateException - Unable to apply template.

See Also:

#getSimpleSearchQuery(org.eclipse.smila.search.utils.search.DQuery)

doQuery

public LuceneSearchResult doQuery(IQueryExpression queryExpression,
                                  int startPos)
                           throws IndexException

Execute search query.

Specified by:

doQuery in class IndexConnection

Parameters:

queryExpression - Advanced search query.

startPos - Start position.

Returns:

Result.

Throws:

IndexException - Unable to perform search query.

See Also:

IndexConnection.doQuery(org.eclipse.smila.search.utils.advsearch.IQueryExpression, int)

doQueryCallback

public LuceneSearchResult doQueryCallback(IndexSearcher indexSearcher,
                                          DQueryExpression queryExpression,
                                          int startPos)
                                   throws XMLUtilsException,
                                          AdvSearchException,
                                          IndexException,
                                          java.io.IOException

Do query callback for DoQueryOperation. (I was too lazy to split correctly all functionality to operations and sometimes it call callback to original code).

Parameters:

indexSearcher - the index searcher

queryExpression - the query expression

startPos - the start pos

Returns:

the d result

Throws:

XMLUtilsException - the XML utils exception

AdvSearchException - the adv search exception

IndexException - the index exception

java.io.IOException - Signals that an I/O exception has occurred.

getTestQueryExpression

protected IQueryExpression getTestQueryExpression(java.lang.String text)
                                           throws IndexException

Specified by:

getTestQueryExpression in class IndexConnection

Parameters:

text - -

Returns:

IQueryExpression

Throws:

IndexException - -

See Also:

IndexConnection.getTestQueryExpression(java.lang.String)

insertTextParameter

protected void insertTextParameter(DTextField field,
                                   ITFParameter configParameter,
                                   java.lang.String config,
                                   java.lang.StringBuffer sb)

Specified by:

insertTextParameter in class IndexConnection

Parameters:

field - -

configParameter - -

config - -

sb - -

See Also:

IndexConnection.insertTextParameter(org.eclipse.smila.search.utils.search.DTextField, org.eclipse.smila.search.utils.search.ITFParameter, java.lang.String, java.lang.StringBuffer)

insertNumberParameter

protected void insertNumberParameter(DNumberField field,
                                     INFParameter configParameter,
                                     java.lang.String config,
                                     java.lang.StringBuffer sb)

Specified by:

insertNumberParameter in class IndexConnection

Parameters:

field - -

configParameter - -

config - -

sb - -

See Also:

#insertNumberParameter(org.eclipse.smila.search.utils.search.DNumberField, org.eclipse.smila.search.utils.search.INFParameter, java.lang.String, java.lang.StringBuffer)

insertDateParameter

protected void insertDateParameter(DDateField field,
                                   IDFParameter configParameter,
                                   java.lang.String config,
                                   java.lang.StringBuffer sb)

Specified by:

insertDateParameter in class IndexConnection

Parameters:

field - -

configParameter - -

config - -

sb - -

See Also:

#insertDateParameter(org.eclipse.smila.search.utils.search.DDateField, org.eclipse.smila.search.utils.search.IDFParameter, java.lang.String, java.lang.StringBuffer)

getResultValues

protected void getResultValues(java.lang.String[] keys,
                               int[] fields,
                               java.lang.String[][] values)
                        throws IndexException

Specified by:

getResultValues in class IndexConnection

Parameters:

keys - -

fields - -

values - -

Throws:

IndexException - -

See Also:

#getResultValues(java.lang.String[], int[], java.lang.String[][])

getResultValues

protected java.lang.String[] getResultValues(java.lang.String id,
                                             int fieldNo)
                                      throws IndexException

Specified by:

getResultValues in class IndexConnection

Throws:

IndexException

encodeTextField

protected void encodeTextField(DTextField tf)
                        throws IndexException

Specified by:

encodeTextField in class IndexConnection

Parameters:

tf - -

Throws:

IndexException - -

See Also:

IndexConnection.encodeTextField(org.eclipse.smila.search.utils.search.DTextField)

isSupportedValue

protected void isSupportedValue(int fieldNo,
                                java.lang.Object value)
                         throws IndexException

Specified by:

isSupportedValue in class IndexConnection

Parameters:

fieldNo - -

value - -

Throws:

IndexException - -

See Also:

IndexConnection.isSupportedValue(int, java.lang.Object)

createValue

protected Value createValue(DataFactory f,
                            int fieldNo,
                            java.lang.String value)
                     throws IndexException

create value from string using the appropriate type method.

Specified by:

createValue in class IndexConnection

fieldNo - the fieldNo

value - the string value

Returns:

value

Throws:

IndexException - if any error occurs

addHighlightAnnotation

protected void addHighlightAnnotation(IQueryExpression dQE,
                                      java.lang.String recordId,
                                      AnyMap highlight,
                                      int fieldNo,
                                      java.lang.String attributeName,
                                      java.lang.String indexName)
                               throws IndexException

Adds a highlighting annotation on the given record and attribute

Specified by:

addHighlightAnnotation in class IndexConnection

Parameters:

dQE - the IQueryExpression

recordId - record id

highlight - the highlight annotation.

fieldNo - the fieldNo

attributeName - the name of the attribute

indexName - the name of the index

Throws:

IndexException - if any errorr occurs

unlock

public void unlock()
            throws IndexException

Description copied from class: IndexConnection

Unlocks a locked index.

Specified by:

unlock in class IndexConnection

Throws:

IndexException - if any error occurs

See Also:

unlock()