package er.indexing;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.text.Format;
import java.util.Date;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.WeakHashMap;
import org.apache.log4j.Logger;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.PerFieldAnalyzerWrapper;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.DateTools;
import org.apache.lucene.document.DateTools.Resolution;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.document.Field.Index;
import org.apache.lucene.document.Field.Store;
import org.apache.lucene.document.Field.TermVector;
import org.apache.lucene.document.NumberTools;
import org.apache.lucene.index.CorruptIndexException;
import org.apache.lucene.index.IndexReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.Term;
import org.apache.lucene.index.TermEnum;
import org.apache.lucene.queryParser.ParseException;
import org.apache.lucene.queryParser.QueryParser;
import org.apache.lucene.search.BooleanClause.Occur;
import org.apache.lucene.search.BooleanQuery;
import org.apache.lucene.search.Filter;
import org.apache.lucene.search.Hit;
import org.apache.lucene.search.Hits;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.PrefixTermEnum;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.Searcher;
import org.apache.lucene.search.Sort;
import org.apache.lucene.search.TermQuery;
import org.apache.lucene.search.TopFieldDocs;
import org.apache.lucene.search.TopScoreDocCollector;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Parameter;
import org.apache.lucene.util.Version;
import com.webobjects.eocontrol.EOEditingContext;
import com.webobjects.eocontrol.EOEnterpriseObject;
import com.webobjects.eocontrol.EOKeyGlobalID;
import com.webobjects.eocontrol.EOKeyValueQualifier;
import com.webobjects.eocontrol.EOQualifier;
import com.webobjects.foundation.NSArray;
import com.webobjects.foundation.NSDictionary;
import com.webobjects.foundation.NSForwardException;
import com.webobjects.foundation.NSKeyValueCoding;
import com.webobjects.foundation.NSMutableArray;
import com.webobjects.foundation.NSMutableDictionary;
import com.webobjects.foundation.NSMutableSet;
import com.webobjects.foundation.NSNotification;
import com.webobjects.foundation.NSNotificationCenter;
import com.webobjects.foundation.NSNumberFormatter;
import com.webobjects.foundation.NSTimestampFormatter;
import er.extensions.eof.ERXEC;
import er.extensions.eof.ERXEOControlUtilities;
import er.extensions.eof.ERXGenericRecord;
import er.extensions.eof.ERXKeyGlobalID;
import er.extensions.foundation.ERXKeyValueCodingUtilities;
import er.extensions.foundation.ERXMutableDictionary;
import er.extensions.foundation.ERXPatcher;
import er.extensions.foundation.ERXSelectorUtilities;
import er.indexing.storage.ERIDirectory;
public class ERIndex {
protected Logger log;
public static String IndexingStartedNotification = "ERIndexingStartedNotification";
public static String IndexingEndedNotification = "ERIndexingEndedNotification";
public static String IndexingFailedNotification = "ERIndexingFailedNotification";
private static final String GID = "EOGlobalID";
protected static final String KEY = "ERIndexing";
private static NSMutableDictionary<String, ERIndex> indices = ERXMutableDictionary.synchronizedDictionary();
public class IndexDocument implements NSKeyValueCoding {
private final Document _document;
private final NSMutableDictionary<String, String> _values = new NSMutableDictionary<String, String>();
public IndexDocument(Document document) {
_document = document;
}
public void takeValueForKey(Object value, String key) {
_document.getField(key).setValue(key);
}
public Object valueForKey(String key) {
return _document.get(key);
}
public Document document() {
return _document;
}
public void save() {
// TODO Auto-generated method stub
}
public void revert() {
// TODO Auto-generated method stub
}
public void delete() {
// TODO Auto-generated method stub
}
}
protected class IndexAttribute {
String _name;
TermVector _termVector;
Store _store;
Index _index;
Analyzer _analyzer;
Format _format;
ERIndex _model;
/**
* This class corresponds to one property. indexModel --> properties --> a property
*
* @param index the index
* @param name the property name (a key or keypath)
* @param dict the property definition form indexModel
*/
IndexAttribute(ERIndex index, String name, NSDictionary dict) {
_name = name;
_termVector = (TermVector) classValue(dict, "termVector", TermVector.class, "YES");
_store = (Store) classValue(dict, "store", Store.class, "NO");
_index = (Index) classValue(dict, "index", Index.class, "ANALYZED");
String analyzerClass = (String) dict.objectForKey("analyzer");
if (analyzerClass == null) {
analyzerClass = StandardAnalyzer.class.getName();
}
_analyzer = (Analyzer) create(analyzerClass);
if (_analyzer == null && name.matches("\\w+_(\\w+)")) {
// String locale = name.substring(name.lastIndexOf('_') + 1);
}
_format = (Format) create((String) dict.objectForKey("format"));
String numberFormat = (String) dict.objectForKey("numberformat");
if (numberFormat != null) {
_format = new NSNumberFormatter(numberFormat);
}
String dateformat = (String) dict.objectForKey("dateformat");
if (dateformat != null) {
_format = new NSTimestampFormatter(dateformat);
}
}
private Object create(String className) {
if (className != null) {
try {
Class c = ERXPatcher.classForName(className);
return c.newInstance();
} catch (InstantiationException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
} catch (IllegalAccessException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
return null;
}
private Object classValue(NSDictionary dict, String key, Class c, String defaultValue) {
Object result;
String code = (String) dict.objectForKey(key);
if (code == null) {
code = defaultValue;
}
result = ERXKeyValueCodingUtilities.classValueForKey(c, code);
return result;
}
public TermVector termVector() {
return _termVector;
}
public Index index() {
return _index;
}
public Store store() {
return _store;
}
public String name() {
return _name;
}
public Analyzer analyzer() {
return _analyzer;
}
public String formatValue(Object value) {
if (_format != null) {
return _format.format(value);
}
if (value instanceof Number) {
return NumberTools.longToString(((Number) value).longValue());
}
if (value instanceof Date) {
return DateTools.dateToString((Date) value, Resolution.MILLISECOND);
}
if (value instanceof NSArray) {
return ((NSArray) value).componentsJoinedByString(" ");
}
return (value != null ? value.toString() : null);
}
}
protected static class Command extends Parameter {
/**
* Do I need to update serialVersionUID?
* See section 5.6 <cite>Type Changes Affecting Serialization</cite> on page 51 of the
* <a href="http://java.sun.com/j2se/1.4/pdf/serial-spec.pdf">Java Object Serialization Spec</a>
*/
private static final long serialVersionUID = 1L;
protected Command(String name) {
super(name);
}
protected static Command ADD = new Command("ADD");
protected static Command DELETE = new Command("DELETE");
}
protected class Job {
private final Command _command;
private final NSArray _objects;
public Job(Command command, NSArray objects) {
_command = command;
_objects = objects;
}
public NSArray objects() {
return _objects;
}
public Command command() {
return _command;
}
}
protected class Transaction {
private final NSMutableArray<Job> _jobs = new NSMutableArray<Job>();
private final EOEditingContext _editingContext;
private boolean _clear = false;
private int _objectCount = 0;
Transaction(EOEditingContext ec) {
_editingContext = ec;
}
public void clear() {
_clear = true;
}
public void addJob(Command command, NSArray objects) {
if (objects.count() > 0) {
_objectCount += objects.count();
_jobs.addObject(new Job(command, objects));
}
}
public EOEditingContext editingContext() {
return _editingContext;
}
public NSArray<Job> jobs() {
return _jobs;
}
@Override
public String toString() {
if (hasClear()) {
return "Transaction@" + hashCode() + " clear";
}
return "Transaction@" + (editingContext() != null ? editingContext().hashCode() : null) + "@" + hashCode() + " jobs: " + jobs().count() + " objects: " + _objectCount;
}
public boolean hasClear() {
return _clear;
}
TransactionHandler handler() {
return _handler;
}
}
protected abstract class TransactionHandler {
protected Map<EOEditingContext, Transaction> activeChanges = new WeakHashMap<EOEditingContext, Transaction>();
TransactionHandler() {
registerNotifications();
}
public void clear() {
Transaction transaction = new Transaction(null);
transaction.clear();
submit(transaction);
}
private void registerNotification(String notificationName, String selectorName) {
NSNotificationCenter.defaultCenter().addObserver(this, ERXSelectorUtilities.notificationSelector(selectorName), notificationName, null);
}
protected void registerNotifications() {
registerNotification(ERXEC.EditingContextWillSaveChangesNotification, "_handleChanges");
registerNotification(ERXEC.EditingContextDidSaveChangesNotification, "_handleChanges");
registerNotification(ERXEC.EditingContextDidRevertChanges, "_handleChanges");
registerNotification(ERXEC.EditingContextFailedToSaveChanges, "_handleChanges");
}
protected void addObjectsToIndex(Transaction transaction, NSArray<? extends EOEnterpriseObject> objects) {
NSArray added = addedDocumentsForObjects(objects);
transaction.addJob(Command.ADD, added);
}
protected void deleteObjectsFromIndex(Transaction transaction, NSArray<? extends EOEnterpriseObject> objects) {
NSArray deleted = deletedTermsForObjects(objects);
transaction.addJob(Command.DELETE, deleted);
}
public void submit(Transaction transaction) {
index(transaction);
}
synchronized void index(Transaction transaction) {
try {
NSNotificationCenter.defaultCenter().postNotification(IndexingStartedNotification, transaction);
boolean create = transaction.hasClear();
if (create) {
log.warn("Clearing index");
} else if (transaction.jobs().count() == 0) {
NSNotificationCenter.defaultCenter().postNotification(IndexingEndedNotification, transaction);
return;
}
long start = System.currentTimeMillis();
log.info("Running " + transaction);
if (!create && !indexDirectory().fileExists("segments.gen")) {
log.error("segments did not exist but create wasn't called");
create = true;
}
IndexWriter writer = new IndexWriter(indexDirectory(), analyzer(), create, IndexWriter.MaxFieldLength.UNLIMITED);
for (Job job : transaction.jobs()) {
log.info("Indexing: " + job.command() + " " + job.objects().count());
if (job.command() == Command.DELETE) {
for (Enumeration iter = job.objects().objectEnumerator(); iter.hasMoreElements();) {
Term term = (Term) iter.nextElement();
writer.deleteDocuments(term);
}
} else if (job.command() == Command.ADD) {
for (Enumeration iter = job.objects().objectEnumerator(); iter.hasMoreElements();) {
Document document = (Document) iter.nextElement();
writer.addDocument(document, analyzer());
}
}
log.info("Done: " + job.command() + " " + job.objects().count());
}
writer.flush();
writer.close();
NSNotificationCenter.defaultCenter().postNotification(IndexingEndedNotification, transaction);
log.info("Finished in " + (System.currentTimeMillis() - start) / 1000 + "s: " + transaction);
} catch (IOException e) {
NSNotificationCenter.defaultCenter().postNotification(IndexingFailedNotification, transaction);
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public abstract void _handleChanges(NSNotification n);
}
private TransactionHandler _handler;
private Directory _indexDirectory;
private NSDictionary<String, IndexAttribute> _attributes = NSDictionary.EmptyDictionary;
private final String _name;
private String _store;
protected ERIndex(String name) {
log = Logger.getLogger(ERIndex.class.getName() + "." + name);
_name = name;
indices.setObjectForKey(this, name);
}
public void addObjectsToIndex(EOEditingContext ec, NSArray<? extends EOEnterpriseObject> objects) {
Transaction transaction = new Transaction(ec);
_handler.addObjectsToIndex(transaction, objects);
_handler.submit(transaction);
}
public void deleteObjectsFromIndex(EOEditingContext ec, NSArray<? extends EOEnterpriseObject> objects) {
Transaction transaction = new Transaction(ec);
_handler.deleteObjectsFromIndex(transaction, objects);
_handler.submit(transaction);
}
protected TransactionHandler handler() {
return _handler;
}
protected void setTransactionHandler(TransactionHandler handler) {
_handler = handler;
}
protected void setStore(String store) {
_store = store;
}
protected Analyzer analyzer() {
PerFieldAnalyzerWrapper wrapper = new PerFieldAnalyzerWrapper(new StandardAnalyzer(Version.LUCENE_24));
for (IndexAttribute attribute : attributes()) {
wrapper.addAnalyzer(attribute.name(), attribute.analyzer());
}
return wrapper;
}
public void addAttribute(String propertyName, NSDictionary propertyDefinition) {
createAttribute(propertyName, propertyDefinition);
}
/**
* Creates a new {@link IndexAttribute} and adds it to the attributes dictionary of this Index
*
* @param propertyName
* @param propertyDefinition
* @return the new {@link IndexAttribute}
*/
protected IndexAttribute createAttribute(String propertyName, NSDictionary propertyDefinition) {
IndexAttribute attribute = new IndexAttribute(this, propertyName, propertyDefinition);
NSMutableDictionary attributes = _attributes.mutableClone();
attributes.setObjectForKey(attribute, propertyName);
_attributes = attributes.immutableClone();
return attribute;
}
private Directory indexDirectory() {
if(_indexDirectory == null) {
try {
if (_store.startsWith("file://")) {
File indexDirectory = new File(new URL(_store).getFile());
_indexDirectory = FSDirectory.open(indexDirectory);
} else {
EOEditingContext ec = ERXEC.newEditingContext();
ec.lock();
try {
_indexDirectory = ERIDirectory.clazz.directoryForName(ec, _store);
} finally {
ec.unlock();
}
}
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
return _indexDirectory;
}
private IndexReader _reader;
private IndexSearcher _searcher;
private IndexReader indexReader() throws CorruptIndexException, IOException {
if (_reader == null) {
_reader = IndexReader.open(indexDirectory(), true);
// ^^^ readOnly
_searcher = new IndexSearcher(_reader);
}
if (!_reader.isCurrent()) {
_reader = _reader.reopen();
_searcher = new IndexSearcher(_reader);
}
return _reader;
}
public IndexSearcher indexSearcher() throws CorruptIndexException, IOException {
IndexReader indexReader = indexReader();
return _searcher;
}
private NSArray<IndexAttribute> attributes() {
return _attributes.allValues();
}
public String name() {
return _name;
}
public NSArray<String> attributeNames() {
return _attributes.allKeys();
}
public void clear() {
_handler.clear();
}
protected IndexAttribute attributeNamed(String fieldName) {
return _attributes.objectForKey(fieldName);
}
protected boolean handlesObject(EOEnterpriseObject eo) {
return true;
}
protected NSArray<Document> addedDocumentsForObjects(NSArray<? extends EOEnterpriseObject> objects) {
NSMutableArray documents = new NSMutableArray();
for (Enumeration e = objects.objectEnumerator(); e.hasMoreElements();) {
EOEnterpriseObject eo = (EOEnterpriseObject) e.nextElement();
if (handlesObject(eo)) {
Document doc = createDocumentForObject(eo);
if (doc != null) {
documents.addObject(doc);
}
}
}
return documents;
}
protected Document createDocumentForObject(EOEnterpriseObject eo) {
EOKeyGlobalID gid = ((ERXGenericRecord) eo).permanentGlobalID();
IndexDocument document = createDocumentForGlobalID(gid);
Document doc = document.document();
for (IndexAttribute info : attributes()) {
String key = info.name();
Object value = eo.valueForKeyPath(key);
if (log.isDebugEnabled()) {
log.info(key + "->" + value);
}
String stringValue = info.formatValue(value);
if (stringValue != null) {
Field field = new Field(key, stringValue, info.store(), info.index(), info.termVector());
document.document().add(field);
}
}
return doc;
}
protected NSArray<Term> deletedTermsForObjects(NSArray<? extends EOEnterpriseObject> objects) {
NSMutableArray terms = new NSMutableArray();
Term term;
for (Enumeration e = objects.objectEnumerator(); e.hasMoreElements();) {
EOEnterpriseObject eo = (EOEnterpriseObject) e.nextElement();
if (handlesObject(eo)) {
term = createTerm(eo);
if (term != null) {
terms.addObject(term);
}
}
}
return terms;
}
protected Term createTerm(EOEnterpriseObject eo) {
Term term = null;
String pk = gidStringForObject(eo);
term = new Term(GID, pk);
return term;
}
private String gidStringForObject(EOEnterpriseObject eo) {
EOKeyGlobalID gid = ((ERXGenericRecord) eo).permanentGlobalID();
String pk = ERXKeyGlobalID.globalIDForGID(gid).asString();
return pk;
}
private EOEnterpriseObject objectForGidString(EOEditingContext ec, String gidString) {
EOKeyGlobalID gid = ERXKeyGlobalID.fromString(gidString).globalID();
return ec.faultForGlobalID(gid, ec);
}
private Query queryForQualifier(EOQualifier qualifier) throws ParseException {
EOKeyValueQualifier q = (EOKeyValueQualifier) qualifier;
return queryForString(q.key(), (String) q.value());
}
private Query queryForString(String fieldName, String queryString) throws ParseException {
Analyzer analyzer = attributeNamed(fieldName).analyzer();
QueryParser parser = new QueryParser(Version.LUCENE_29, fieldName, analyzer);
Query query = parser.parse(queryString);
return query;
}
private Query queryForString(String queryString) throws ParseException {
//TODO
return null;
}
public NSArray<? extends EOEnterpriseObject> findObjects(EOEditingContext ec, Query query, Filter filter, Sort sort, int start, int end) {
return ERXEOControlUtilities.faultsForGlobalIDs(ec, findGlobalIDs(query, filter, sort, start, end));
}
private NSArray<EOKeyGlobalID> findGlobalIDs(Query query, Filter filter, Sort sort, int start, int end) {
NSMutableArray<EOKeyGlobalID> result = new NSMutableArray<EOKeyGlobalID>();
try {
Searcher searcher = indexSearcher();
long startTime = System.currentTimeMillis();
sort = sort == null ? new Sort() : sort;
TopFieldDocs topFielsDocs = searcher.search(query, filter, end, sort);
log.info("Searched for: " + query + " in " + (System.currentTimeMillis() - startTime) + " ms");
for (int i = start; i < topFielsDocs.scoreDocs.length; i++) {
String gidString = searcher.doc(topFielsDocs.scoreDocs[i].doc).getField(GID).stringValue();
EOKeyGlobalID gid = ERXKeyGlobalID.fromString(gidString).globalID();
result.addObject(gid);
}
log.info("Returning " + result.count() + " after " + (System.currentTimeMillis() - startTime) + " ms");
return result;
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
private NSArray<EOKeyGlobalID> findGlobalIDs(Query query) {
NSMutableArray<EOKeyGlobalID> result = new NSMutableArray();
long start = System.currentTimeMillis();
try {
Searcher searcher = indexSearcher();
Hits hits = searcher.search(query);
log.info("Searched for: " + query + " in " + (System.currentTimeMillis() - start) + " ms");
for (Iterator iter = hits.iterator(); iter.hasNext();) {
Hit hit = (Hit) iter.next();
String gidString = hit.getDocument().getField(GID).stringValue();
EOKeyGlobalID gid = ERXKeyGlobalID.fromString(gidString).globalID();
result.addObject(gid);
}
log.info("Returning " + result.count() + " after " + (System.currentTimeMillis() - start) + " ms");
return result;
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public NSArray<? extends EOEnterpriseObject> findObjects(EOEditingContext ec, Query query) {
return ERXEOControlUtilities.faultsForGlobalIDs(ec, findGlobalIDs(query));
}
public NSArray<EOKeyGlobalID> findGlobalIDs(String queryString) {
try {
Query query = queryForString(queryString);
return findGlobalIDs(query);
} catch (ParseException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public NSArray<EOKeyGlobalID> findGlobalIDs(EOQualifier qualifier) {
try {
Query query = queryForQualifier(qualifier);
return findGlobalIDs(query);
} catch (ParseException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public ScoreDoc[] findScoreDocs(Query query, int hitsPerPage) {
ScoreDoc[] hits = null;
long start = System.currentTimeMillis();
try {
Searcher searcher = indexSearcher();
TopScoreDocCollector collector = TopScoreDocCollector.create(hitsPerPage, true);
searcher.search(query, collector);
hits = collector.topDocs().scoreDocs;
log.debug("Returning " + hits.length + " after " + (System.currentTimeMillis() - start) + " ms");
return hits;
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
@Deprecated
public Hits findHits(Query query) {
Hits hits = null;
long start = System.currentTimeMillis();
try {
Searcher searcher = indexSearcher();
hits = searcher.search(query);
log.debug("Returning " + hits.length() + " after " + (System.currentTimeMillis() - start) + " ms");
return hits;
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public NSArray<String> findTermStringsForPrefix(String field, String prefix) {
NSMutableArray<String> terms = new NSMutableArray<String>();
try {
IndexReader reader = indexReader();
TermEnum tenum = new PrefixTermEnum(reader, new Term(field, prefix));
do {
if (tenum.term() == null) break;
final String termText = tenum.term().text();
terms.addObject(termText);
} while (tenum.next());
} catch (Exception e) {
e.printStackTrace();
}
return terms;
}
@Deprecated
public NSArray<Term> findTerms(Query q) {
NSMutableArray<Term> terms = new NSMutableArray<Term>();
try {
IndexReader reader = indexReader();
HashSet<Term> suggestedTerms = new HashSet<Term>();
q.rewrite(reader).extractTerms(suggestedTerms);
for (Iterator<Term> iter = suggestedTerms.iterator(); iter.hasNext();)
{
Term term = iter.next();
terms.addObject(term);
}
} catch (Exception e) {
e.printStackTrace();
}
return terms.immutableClone();
}
@Deprecated
public NSArray<String> findTermStrings(Query q) {
NSMutableArray<String> terms = new NSMutableArray<String>();
try {
IndexReader reader = indexReader();
HashSet<Term> suggestedTerms = new HashSet<Term>();
q.rewrite(reader).extractTerms(suggestedTerms);
for (Iterator<Term> iter = suggestedTerms.iterator(); iter.hasNext();)
{
Term term = iter.next();
terms.addObject(term.text());
}
} catch (Exception e) {
e.printStackTrace();
}
return terms.immutableClone();
}
public IndexDocument findDocument(EOKeyGlobalID globalID) {
NSMutableArray<Document> result = new NSMutableArray();
long start = System.currentTimeMillis();
try {
Searcher searcher = indexSearcher();
String pk = ERXKeyGlobalID.globalIDForGID(globalID).asString();
BooleanQuery query = new BooleanQuery();
query.add(new TermQuery(new Term(GID, pk)), Occur.MUST);
Hits hits = searcher.search(query);
log.info("Searched for: " + query.toString(GID) + " in " + (System.currentTimeMillis() - start) + " ms");
for (Iterator iter = hits.iterator(); iter.hasNext();) {
Hit hit = (Hit) iter.next();
result.addObject(hit.getDocument());
}
log.info("Returning " + result.count() + " after " + (System.currentTimeMillis() - start) + " ms");
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
return new IndexDocument(result.lastObject());
}
public ERDocument documentForId(int docId, float score) {
ERDocument doc = null;
try {
Document _doc = indexSearcher().doc(docId);
doc = new ERDocument(_doc, score);
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
return doc;
}
public NSArray<? extends EOEnterpriseObject> findObjects(EOEditingContext ec, EOQualifier qualifier) {
try {
Query query = queryForQualifier(qualifier);
return findObjects(ec, query);
} catch (ParseException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public NSArray<? extends EOEnterpriseObject> findObjects(EOEditingContext ec, String queryString) {
try {
Query query = queryForString(queryString);
NSArray<EOKeyGlobalID> gids = findGlobalIDs(query);
return ERXEOControlUtilities.faultsForGlobalIDs(ec, gids);
} catch (ParseException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
public NSArray<String> terms(String fieldName) {
NSMutableSet<String> result = new NSMutableSet();
TermEnum terms = null;
try {
IndexReader reader = indexReader();
terms = reader.terms(new Term(fieldName, ""));
while (fieldName.equals(terms.term().field())) {
result.addObject(terms.term().text());
if (!terms.next()) {
break;
}
}
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
} finally {
if (terms != null) {
try {
terms.close();
} catch (IOException e) {
throw NSForwardException._runtimeExceptionForThrowable(e);
}
}
}
return result.allObjects();
}
public IndexDocument documentForGlobalID(EOKeyGlobalID globalID) {
return findDocument(globalID);
}
public IndexDocument createDocumentForGlobalID(EOKeyGlobalID globalID) {
Document doc = new Document();
String pk = ERXKeyGlobalID.globalIDForGID(globalID).asString();
doc.add(new Field(GID, pk, Field.Store.YES, Field.Index.NOT_ANALYZED));
return new IndexDocument(doc);
}
public static ERIndex indexNamed(String key) {
return indices.objectForKey(key);
}
}