com.jalios.jcms.search
Class LucenePublicationSearchEngine

java.lang.Object
  com.jalios.jcms.search.LuceneDataSearchEngine
      com.jalios.jcms.search.LucenePublicationSearchEngine

All Implemented Interfaces:

JcmsConstants, PublicationSearchEngine, JaliosConstants

public class LucenePublicationSearchEngine
extends LuceneDataSearchEngine
implements PublicationSearchEngine, JcmsConstants

This PublicationSearchEngine is reponsible for the indexing and searching of JCMS content using lucene.

Architecture and notable points:

1 lucene index per language: WEB-INF/data/lucene/PublicationsIndices/<lang>/.

1 Document per indexed Publication.

Date fields are indexed using "yyyyMMdd" format.

Only String and String[] fields are added to the common appendable field ALLFIELDS_FIELD used for searching.

Indices' optimization occurs using schedule specified by property "search-engine.optimize-schedule" (jdring's AlarmEntry cron-like format)

Possible Hooks/Modification:

Specify analyzer for each language: Analyzer getAnalyzer(String lang);

Specify boost for each Document, in each language: LuceneSearchEnginePolicyFilter.getPublicationBoost(Publication, String, float)

Specify boost for each Document'Field, in each language: LuceneSearchEnginePolicyFilter.getFieldBoost(Publication, String, String, String, float)

Since:

jcms-5.5.0

Version:

$Revision: 24069 $

Author:

Olivier Jaquemet

Nested Class Summary

Nested classes/interfaces inherited from class com.jalios.jcms.search.LuceneDataSearchEngine

LuceneDataSearchEngine.MultiSearcherWrapper

Field Summary

static String	ABSTRACT_FIELD
static String	ADATE_FIELD
static String	ALLFIELDS_FIELD
static String	CDATE_FIELD
static DateFormat	dateFormatter
static String	EDATE_FIELD
static String	FILEDOCUMENT_CONTENT_TYPE_FIELD
static String	FILEDOCUMENT_FILE_EXTENSION_FIELD
static String	FILEDOCUMENT_FILENAME_FIELD
static String	FILEDOCUMENT_ORIGINAL_FILENAME_FIELD
static String	LUCENE_ADVANCED_QUERY_ATTRIBUTE QueryHandler attribute name for the optionnal advanced lucene query that can be performed with this Engine.
static String	PDATE_FIELD
protected static String	PUBLICATION_INDEX_DIRECTORY
static String	REVISION
static String	SDATE_FIELD
static String	SPELLSUGGEST_ATTRIBUTE This variable is the attribute's key used by the LucenePublicationSearchEngine to set the suggested search string in the QueryResultSet Attribute.
protected SpellSuggestEngine	spellSuggestEngine
static String	TITLE_FIELD

Fields inherited from class com.jalios.jcms.search.LuceneDataSearchEngine

alarmMgr, channel, directoryName, ID_FIELD, indexAccessLock, INDEXING_DATE_EXTRAINFO, INDEXING_DATE_FIELD, langList, langToIndexDirMap, MAX_BUFFERED_DOCS, MAX_FIELD_LENGTH, MAX_MERGE_DOCS, MERGE_FACTOR

Fields inherited from interface com.jalios.jcms.JcmsConstants

ADATE_SEARCH, ADMIN_NOTES_PROP, ADVANCED_TAB, ARCHIVES_DIR, ASCII_WIDTH, CATEGORY_TAB, CDATE_SEARCH, COMMON_ALARM, CONTENT_TAB, COOKIE_MAX_AGE, CRYPT_MD5, CRYPT_UNDEFINED, CRYPT_UNIX, CTRL_TOPIC_INTERNAL, CTRL_TOPIC_REF, CTRL_TOPIC_VALUE, CTRL_TOPIC_WRITE, CUSTOM_PROP, DOCCHOOSER_HEIGHT, DOCCHOOSER_WIDTH, DOCS_DIR, EDATE_SEARCH, EMAIL_REGEXP, ERROR_MSG, FORBIDDEN_FILE_ACCESS, FORBIDDEN_REDIRECT, FORCE_REDIRECT, ICON_ARCHIVE, ICON_LOCK, ICON_LOCK_STRONG, ICON_WARN, ICON_WH_BOOK_CLOSED, ICON_WH_BOOK_OPEN, INFORMATION_MSG, JALIOS_JUNIT_PROP, JCMS_CADDY, JSYNC_DOWNLOAD_DIR, JSYNC_SYNC_ALARM, LOG_FILE, LOG_TOPIC_SECURITY, LOGGER_PROP, LOGGER_XMLPROP, MBR_PHOTO_DIR, MDATE_SEARCH, MONITOR_XML, OP_CREATE, OP_DEEP_COPY, OP_DEEP_DELETE, OP_DELETE, OP_MERGE, OP_UPDATE, PDATE_SEARCH, PHOTO_LARGE, PHOTO_LARGE_HEIGHT, PHOTO_LARGE_WIDTH, PHOTO_NORMAL, PHOTO_NORMAL_HEIGHT, PHOTO_NORMAL_WIDTH, PHOTO_SMALL, PHOTO_SMALL_HEIGHT, PHOTO_SMALL_WIDTH, PHOTO_TINY, PHOTO_TINY_HEIGHT, PHOTO_TINY_WIDTH, PREVIOUS_TAB, PRINT_VIEW, PRIVATE_FILE_ACCESS, PUBLIC_FILE_ACCESS, READ_RIGHT_TAB, SDATE_SEARCH, SEARCHENGINE_ALARM, SESSION_AUTHORIZED_FILENAMES_SET, STATS_REPORT_DIR, STATUS_PROP, STORE_XML, TEMPLATE_TAB, THUMBNAIL_LARGE_HEIGHT, THUMBNAIL_LARGE_WIDTH, THUMBNAIL_SMALL_HEIGHT, THUMBNAIL_SMALL_WIDTH, UDATE_SEARCH, UPDATE_RIGHT_TAB, UPLOAD_DIR, URL_REGEXP, WARNING_MSG, WEBAPP_PROP, WFEXPRESS_ALARM, WFREMINDER_ALARM, WORKFLOW_TAB, WORKFLOW_XML

Fields inherited from interface com.jalios.util.JaliosConstants

CRLF, MILLIS_IN_ONE_DAY, MILLIS_IN_ONE_HOUR, MILLIS_IN_ONE_MINUTE, MILLIS_IN_ONE_MONTH, MILLIS_IN_ONE_SECOND, MILLIS_IN_ONE_WEEK, MILLIS_IN_ONE_YEAR

Constructor Summary

LucenePublicationSearchEngine()
Initialize the Lucene Search Engine

Method Summary

void	add(Collection<? extends Publication> coll) Add given Collection of Publication to this lucene search engine.
void	add(Publication pub) Add given Publication to this lucene search engine.
protected void	addKeywordField(org.apache.lucene.document.Document doc, Publication pub, String lang, String fieldName, String fieldValue, boolean applyBoost) This methods create a unstored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.
protected void	addRawField(org.apache.lucene.document.Document doc, Publication pub, String lang, String fieldName, String fieldValue, boolean applyBoost) This methods create a unstored and untokenized Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.
protected void	addStoredField(org.apache.lucene.document.Document doc, Publication pub, String lang, String fieldName, String fieldValue, boolean applyBoost) This methods create a stored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.
protected void	addUnStoredField(org.apache.lucene.document.Document doc, Publication pub, String lang, String fieldName, String fieldValue, boolean applyBoost) This methods create a unstored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.
void	clearAll() Clear indices in this searchEngine (undoable!).
void	delete(Collection<? extends Publication> coll) Delete given Collection of Publication from this lucene search engine.
void	delete(Publication pub) Delete given Publication from this lucene search engine.
protected com.jalios.jcms.search.LuceneDataSearchEngine.DataIterator<Data>	getAllDataIterator() This methods must be implemented by the LuceneSearchEngine.
Date	getIndexingDate(Publication pub) Retrieve the Date at which the specified Publication was indexed in the search engine.
protected org.apache.log4j.Logger	getLogger() This methods must be implemented by the LuceneSearchEngine.
SpellSuggestEngine	getSpellSuggestEngine()
protected void	indexData(org.apache.lucene.index.IndexWriter writer, Data data, String lang) This methods index the given publication in the given language, into the given index writer.
boolean	search(QueryHandler qh, HashSet<? extends Publication> pubSet, QueryResultSet resultSet) Search Publication using lucene search engine.
LinkedHashMap<String,Float>	search(QueryHandler qh, List<String> idList) Filters the given list of publication's identifier with a lucene search.
void	update(Collection<? extends Publication> coll) Update given Collection of Publication in this lucene search engine.
void	update(Publication pub) Update given Publication in this lucene search engine.

Methods inherited from class com.jalios.jcms.search.LuceneDataSearchEngine

addData, addDataCollection, clearIndices, deleteData, deleteDataCollection, getDirectory, getIndexingDate, getIndexingDate, getLastOptimizeDateSinceRestart, getLastOptimizeDuration, getLastReindexDateSinceRestart, getLastReindexDuration, getLuceneDocument, getOperationStartTime, getProgressState, getSearcher, index, index, isOperationRunning, optimizeIndices, reindexAll, remove, updateData, updateDataCollection

Methods inherited from class java.lang.Object

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

Field Detail

REVISION

public static final String REVISION

See Also:

Constant Field Values

SPELLSUGGEST_ATTRIBUTE

public static final String SPELLSUGGEST_ATTRIBUTE

This variable is the attribute's key used by the LucenePublicationSearchEngine to set the suggested search string in the QueryResultSet Attribute.

See Also:

Constant Field Values

LUCENE_ADVANCED_QUERY_ATTRIBUTE

public static final String LUCENE_ADVANCED_QUERY_ATTRIBUTE

QueryHandler attribute name for the optionnal advanced lucene query that can be performed with this Engine.

Example to require a custom field :

 QueryHandler qh = new QueryHandler();
 //qh.set(...)
 qh.setAttribute(LUCENE_ADVANCED_QUERY_ATTRIBUTE, "+myField:somevalue"); 
 QueryResultSet qrs = qh.getResultSet();
 

See Also:

Constant Field Values

PUBLICATION_INDEX_DIRECTORY

protected static final String PUBLICATION_INDEX_DIRECTORY

See Also:

Constant Field Values

TITLE_FIELD

public static final String TITLE_FIELD

See Also:

Constant Field Values

ABSTRACT_FIELD

public static final String ABSTRACT_FIELD

See Also:

Constant Field Values

ALLFIELDS_FIELD

public static final String ALLFIELDS_FIELD

See Also:

Constant Field Values

CDATE_FIELD

public static final String CDATE_FIELD

See Also:

Constant Field Values

PDATE_FIELD

public static final String PDATE_FIELD

See Also:

Constant Field Values

SDATE_FIELD

public static final String SDATE_FIELD

See Also:

Constant Field Values

EDATE_FIELD

public static final String EDATE_FIELD

See Also:

Constant Field Values

ADATE_FIELD

public static final String ADATE_FIELD

See Also:

Constant Field Values

FILEDOCUMENT_CONTENT_TYPE_FIELD

public static final String FILEDOCUMENT_CONTENT_TYPE_FIELD

See Also:

Constant Field Values

FILEDOCUMENT_FILE_EXTENSION_FIELD

public static final String FILEDOCUMENT_FILE_EXTENSION_FIELD

See Also:

Constant Field Values

FILEDOCUMENT_FILENAME_FIELD

public static final String FILEDOCUMENT_FILENAME_FIELD

See Also:

Constant Field Values

FILEDOCUMENT_ORIGINAL_FILENAME_FIELD

public static final String FILEDOCUMENT_ORIGINAL_FILENAME_FIELD

See Also:

Constant Field Values

dateFormatter

public static final DateFormat dateFormatter

spellSuggestEngine

protected SpellSuggestEngine spellSuggestEngine

Constructor Detail

LucenePublicationSearchEngine

public LucenePublicationSearchEngine()
                              throws Exception

Initialize the Lucene Search Engine

Throws:

Exception - if the Publication search engine could not be instanciated correctly

Method Detail

add

public void add(Publication pub)

Add given Publication to this lucene search engine. This method is asynchronous, the given data may not be (and will certainly not be) added immediately after call.

Specified by:

add in interface PublicationSearchEngine

Parameters:

pub - the Publication to index .

update

public void update(Publication pub)

Update given Publication in this lucene search engine. This method is asynchronous, the given data may not be (and will certainly not be) updated immediately after call.

Specified by:

update in interface PublicationSearchEngine

Parameters:

pub - the Publication to reindex .

delete

public void delete(Publication pub)

Delete given Publication from this lucene search engine. This method is asynchronous, the given data may not be (and will certainly not be) deleted immediately after call.

Specified by:

delete in interface PublicationSearchEngine

Parameters:

pub - the Publication to reindex .

add

public void add(Collection<? extends Publication> coll)

Add given Collection of Publication to this lucene search engine. This method is asynchronous, the given datas may not be (and will certainly not be) added immediately after call.

Specified by:

add in interface PublicationSearchEngine

Parameters:

coll - the Collection of Publication to index .

update

public void update(Collection<? extends Publication> coll)

Update given Collection of Publication in this lucene search engine. This method is asynchronous, the given datas may not be (and will certainly not be) updated immediately after call.

Specified by:

update in interface PublicationSearchEngine

Parameters:

coll - the Collection of Publication to reindex .

delete

public void delete(Collection<? extends Publication> coll)

Delete given Collection of Publication from this lucene search engine. This method is asynchronous, the given datas may not be (and will certainly not be) deleted immediately after call.

Specified by:

delete in interface PublicationSearchEngine

Parameters:

coll - the Collection of Publication to reindex .

getIndexingDate

public Date getIndexingDate(Publication pub)

Retrieve the Date at which the specified Publication was indexed in the search engine.

Specified by:

getIndexingDate in interface PublicationSearchEngine

Parameters:

pub - the Publication for which to retrieve the indexing date.

Returns:

the indexing date of the publication or null if was not indexed.

Since:

jcms-6.0.1

clearAll

public void clearAll()

Clear indices in this searchEngine (undoable!).

Specified by:

clearAll in interface PublicationSearchEngine

search

public boolean search(QueryHandler qh,
                      HashSet<? extends Publication> pubSet,
                      QueryResultSet resultSet)

Search Publication using lucene search engine.

Search in all lucene indices using text of QueryHandler (qh.getText()).

Uses only the Lucene Analyzer of the user's language.

Add Publication into returned Set only if they are already in the given pubSet or if pubSet is null.

Caution! This method ignores all DBData.

Specified by:

search in interface PublicationSearchEngine

Parameters:

qh - the Queryhandler in which to find search text and search options.

pubSet - a HashSet containing all the Publication to search.
if empty, search is not performed at all.
if null, all Publication found will be returned.
This set MUST NOT be modified by implementation.

resultSet - the QueryResultSet that must be filled with matching Publication

Returns:

true if a search was performed in the PublicationSearchEngine. Useful to differenciate a query returning zero result from a query not performed due to missing paramerters (text for example).

Since:

jcms-5.5.0

search

public LinkedHashMap<String,Float> search(QueryHandler qh,
                                          List<String> idList)

Filters the given list of publication's identifier with a lucene search.

Specified by:

search in interface PublicationSearchEngine

Parameters:

qh - the Queryhandler in which to find search text and search options.

idList - the list of publication's identifier

Returns:

a map of publication's matching the lucene query and their score. This map is a subset of idList and respect its order.

Since:

jcms-6.0.0

getSpellSuggestEngine

public SpellSuggestEngine getSpellSuggestEngine()

getLogger

protected org.apache.log4j.Logger getLogger()

Description copied from class: LuceneDataSearchEngine

This methods must be implemented by the LuceneSearchEngine. It must return the logger to be used for log messages.

Specified by:

getLogger in class LuceneDataSearchEngine

Returns:

Logger of this engine.

getAllDataIterator

protected com.jalios.jcms.search.LuceneDataSearchEngine.DataIterator<Data> getAllDataIterator()

Description copied from class: LuceneDataSearchEngine

This methods must be implemented by the LuceneSearchEngine. It must return a DataIterator used to iterate on all Data to index. Used by LuceneDataSearchEngine.reindexAll().

Specified by:

getAllDataIterator in class LuceneDataSearchEngine

indexData

protected void indexData(org.apache.lucene.index.IndexWriter writer,
                         Data data,
                         String lang)
                  throws IOException

This methods index the given publication in the given language, into the given index writer.

Specified by:

indexData in class LuceneDataSearchEngine

Throws:

IOException

addStoredField

protected void addStoredField(org.apache.lucene.document.Document doc,
                              Publication pub,
                              String lang,
                              String fieldName,
                              String fieldValue,
                              boolean applyBoost)

This methods create a stored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.

Parameters:

applyBoost - whether to apply the boost, useful for appendable field in which case the boost should only be applied for the first element.

addUnStoredField

protected void addUnStoredField(org.apache.lucene.document.Document doc,
                                Publication pub,
                                String lang,
                                String fieldName,
                                String fieldValue,
                                boolean applyBoost)

This methods create a unstored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.

Parameters:

applyBoost - whether to apply the boost, useful for appendable field in which case the boost should only be applied for the first element.

addKeywordField

protected void addKeywordField(org.apache.lucene.document.Document doc,
                               Publication pub,
                               String lang,
                               String fieldName,
                               String fieldValue,
                               boolean applyBoost)

This methods create a unstored Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.

Parameters:

applyBoost - whether to apply the boost, useful for appendable field in which case the boost should only be applied for the first element.

addRawField

protected void addRawField(org.apache.lucene.document.Document doc,
                           Publication pub,
                           String lang,
                           String fieldName,
                           String fieldValue,
                           boolean applyBoost)

This methods create a unstored and untokenized Lucene Field with the given field's value of the given Publication in the given language, and add into the given Document.

Parameters:

applyBoost - whether to apply the boost, useful for appendable field in which case the boost should only be applied for the first element.