private void _initIndexWriter() {
try {
Analyzer analyzer =
new LimitTokenCountAnalyzer(
LuceneHelperUtil.getAnalyzer(), PropsValues.LUCENE_ANALYZER_MAX_TOKENS);
IndexWriterConfig indexWriterConfig =
new IndexWriterConfig(LuceneHelperUtil.getVersion(), analyzer);
indexWriterConfig.setIndexDeletionPolicy(_dumpIndexDeletionPolicy);
indexWriterConfig.setMergePolicy(_getMergePolicy());
indexWriterConfig.setMergeScheduler(_getMergeScheduler());
indexWriterConfig.setRAMBufferSizeMB(PropsValues.LUCENE_BUFFER_SIZE);
_indexWriter = new IndexWriter(getLuceneDir(), indexWriterConfig);
if (!IndexReader.indexExists(getLuceneDir())) {
// Workaround for LUCENE-2386
if (_log.isDebugEnabled()) {
_log.debug("Creating missing index");
}
_indexWriter.commit();
}
} catch (Exception e) {
_log.error("Initializing Lucene writer failed for " + _companyId, e);
}
}
private IndexWriter createWriter(boolean create) throws IOException {
try {
final IndexWriterConfig iwc = new IndexWriterConfig(engineConfig.getAnalyzer());
iwc.setCommitOnClose(false); // we by default don't commit on close
iwc.setOpenMode(
create ? IndexWriterConfig.OpenMode.CREATE : IndexWriterConfig.OpenMode.APPEND);
iwc.setIndexDeletionPolicy(deletionPolicy);
// with tests.verbose, lucene sets this up: plumb to align with filesystem stream
boolean verbose = false;
try {
verbose = Boolean.parseBoolean(System.getProperty("tests.verbose"));
} catch (Throwable ignore) {
}
iwc.setInfoStream(verbose ? InfoStream.getDefault() : new LoggerInfoStream(logger));
iwc.setMergeScheduler(mergeScheduler);
MergePolicy mergePolicy = config().getMergePolicy();
// Give us the opportunity to upgrade old segments while performing
// background merges
mergePolicy = new ElasticsearchMergePolicy(mergePolicy);
iwc.setMergePolicy(mergePolicy);
iwc.setSimilarity(engineConfig.getSimilarity());
iwc.setRAMBufferSizeMB(engineConfig.getIndexingBufferSize().mbFrac());
iwc.setCodec(engineConfig.getCodec());
iwc.setUseCompoundFile(
true); // always use compound on flush - reduces # of file-handles on refresh
return new IndexWriter(store.directory(), iwc);
} catch (LockObtainFailedException ex) {
logger.warn("could not lock IndexWriter", ex);
throw ex;
}
}
public static IndexWriter openWriter(
Directory directory, int maxMergeDocs, boolean useSerialMerger)
throws CorruptIndexException, LockObtainFailedException, IOException {
IndexWriterConfig indexWriterConfig = new IndexWriterConfig(LUCENE_VERSION, analyzer);
if (useSerialMerger) {
indexWriterConfig.setMergeScheduler(mergeScheduler);
}
LogMergePolicy mergePolicy = new LogByteSizeMergePolicy();
mergePolicy.setMaxMergeDocs(maxMergeDocs);
indexWriterConfig.setMergePolicy(mergePolicy);
return new IndexWriter(directory, indexWriterConfig);
}
/** 删除索引 */
public void deleteIndex() {
Directory fsDir;
try {
fsDir = FSDirectory.open(new File(PATH));
NRTCachingDirectory cachedFSDir = new NRTCachingDirectory(fsDir, 5.0, 60.0);
IndexWriterConfig conf =
new IndexWriterConfig(Version.LUCENE_36, new StandardAnalyzer(Version.LUCENE_36));
conf.setMergeScheduler(cachedFSDir.getMergeScheduler());
IndexWriter writer = new IndexWriter(cachedFSDir, conf);
writer.deleteAll();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static IndexWriter getIndexWriter() {
Directory fsDir;
IndexWriter writer = null;
try {
fsDir = FSDirectory.open(new File(PATH));
System.out.println("在目录:" + PATH + " 开始创建索引");
NRTCachingDirectory cachedFSDir = new NRTCachingDirectory(fsDir, 5.0, 60.0);
Analyzer analyzer = new IKAnalyzer();
IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_36, analyzer);
conf.setMergeScheduler(cachedFSDir.getMergeScheduler());
writer = new IndexWriter(cachedFSDir, conf);
return writer;
} catch (Exception e) {
}
return writer;
}
/** 创建索引 */
private static void createIndex() throws IOException {
Directory fsDir = FSDirectory.open(new File(PATH));
NRTCachingDirectory cachedFSDir = new NRTCachingDirectory(fsDir, 5.0, 60.0);
Analyzer analyzer = new IKAnalyzer();
IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_36, analyzer);
conf.setMergeScheduler(cachedFSDir.getMergeScheduler());
IndexWriter writer = new IndexWriter(cachedFSDir, conf);
writer.deleteAll();
// 索引的数据源
List<MapBean> ls = LuceneIndexOperator.createDataSource();
int i = 0;
for (MapBean mdata : ls) {
// mdata.getClass().getDeclaredMethods();
Document doc = new Document();
doc.add(new Field("id", "" + mdata.getId(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(new Field("name", mdata.getName(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(new Field("address", mdata.getAddress(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(new Field("city", mdata.getCity(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(new Field("num", mdata.getNum(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(
new Field(
"eastNew",
nullToBlank(mdata.getEastNew()),
Field.Store.YES,
Field.Index.NOT_ANALYZED));
doc.add(
new Field(
"northNew",
nullToBlank(mdata.getNorthNew()),
Field.Store.YES,
Field.Index.NOT_ANALYZED));
doc.add(new Field("datatype", mdata.getDatatype(), Field.Store.YES, Field.Index.ANALYZED));
doc.add(new Field("phone", mdata.getPhone(), Field.Store.YES, Field.Index.NOT_ANALYZED));
doc.add(
new Field(
"geom",
mdata.getEastNew() + "," + mdata.getNorthNew(),
Field.Store.YES,
Field.Index.ANALYZED));
doc.add(
new Field(
"dataType", nullToBlank(mdata.getDatatype()), Field.Store.YES, Field.Index.ANALYZED));
doc.add(
new Field(
"comType",
nullToBlank(mdata.getDataTypeByComType().getDataTypeName()),
Field.Store.YES,
Field.Index.ANALYZED));
doc.add(
new Field(
"dataTypeKey",
nullToBlank(mdata.getDataTypeByDataType().getDataTypeKey()),
Field.Store.YES,
Field.Index.ANALYZED));
doc.add(
new Field(
"comTypeKey",
nullToBlank(mdata.getDataTypeByComType().getDataTypeKey()),
Field.Store.YES,
Field.Index.ANALYZED));
// ReflectFillTheBean(mdata,doc);
// System.out.println(nullToBlank(mdata.getDataTypeByDataType().getDataTypeKey()));
i++;
writer.addDocument(doc);
if (i % 10000 == 0) {
writer.commit();
System.out.println("提交" + i);
}
}
writer.optimize(true);
writer.commit();
writer.close();
}
