hello list
sory, this is maeby a stupid questin, but i can't resolve. so maeby you can
help me:
i try to compile the indexer-example from the book lucene in action, 2nd
edition (http://www.manning.com/hatcher3/hatcher_meapch1.pdf), but get the
following error:
----------------------------------------------------------------------
javac -Xlint -cp ":.:./lucene/lucene-core-2.4.1.jar" Indexer.java
Indexer.java:37: cannot find symbol
symbol : constructor FSDirectory(java.io.File,<nulltype>)
location: class org.apache.lucene.store.FSDirectory
Directory dir = new FSDirectory(new File(indexDir), null);
^
1 error
----------------------------------------------------------------------
it means the following codesgement:
public Indexer(String indexDir) throws IOException {
Directory dir = new FSDirectory(new File(indexDir));
writer = new IndexWriter(dir, new StandardAnalyzer(), true,
IndexWriter.maxFieldLength.UNLIMITED);
}
im using debian testing with..
java -version
java version "1.6.0_0"
OpenJDK Runtime Environment (build 1.6.0_0-b11)
OpenJDK Server VM (build 1.6.0_0-b11, mixed mode)
sourcecode+makefile are attached:
thanks for your help,
timon
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.document.Field;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.Directory;
import java.io.File;
import java.io.IOException;
import java.io.FileReader;
public class Indexer {
private IndexWriter writer;
public static void main(String[] args) throws Exception {
if (args.length != 2) {
throw new Exception("Usage: java " + Indexer.class.getName() + " <index dir> <data dir>");
}
String indexDir = args[0];
String dataDir = args[1];
long start = System.currentTimeMillis();
Indexer indexer = new Indexer(indexDir);
int numIndexed = indexer.index(dataDir);
indexer.close();
long end = System.currentTimeMillis();
System.out.println("Indexing " + numIndexed + " files took " + (end - start) + " milliseconds");
}
public Indexer(String indexDir) throws IOException {
Directory dir = new FSDirectory(new File(indexDir), null);
writer = new IndexWriter(dir, new StandardAnalyzer(), true, IndexWriter.MaxFieldLength.UNLIMITED);
}
public void close() throws IOException {
writer.close();
}
public int index(String dataDir) throws Exception {
File[] files = new File(dataDir).listFiles();
for (int i = 0; i < files.length; i++) {
File f = files[i];
if (!f.isDirectory() && !f.isHidden() && f.exists() && f.canRead() && acceptFile(f)) {
indexFile(f);
}
}
return writer.numDocs();
}
protected boolean acceptFile(File f) {
return f.getName().endsWith(".txt");
}
protected Document getDocument(File f) throws Exception {
Document doc = new Document();
doc.add(new Field("contents", new FileReader(f)));
doc.add(new Field("filename", f.getCanonicalPath(),
Field.Store.YES, Field.Index.NOT_ANALYZED));
return doc;
}
private void indexFile(File f) throws Exception {
System.out.println("Indexing " + f.getCanonicalPath());
Document doc = getDocument(f);
if (doc != null) {
writer.addDocument(doc);
}
}
}
LANG='de_CH';
CP="$(CLASSPATH):.:./lucene/lucene-core-2.4.1.jar"
all:
javac -Xlint -cp $(CP) Indexer.java
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