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use filenames and extensions from org.apache.lucene.index.IndexFileNames 

git-svn-id: https://svn.apache.org/repos/asf/lucene/java/trunk@189794 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Bernhard Messer 2005-06-09 19:00:36 +00:00
parent ba8ed654fd
commit b51159aeda
5 changed files with 18 additions and 36 deletions
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20
src/java/org/apache/lucene/index/IndexReader.java
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@ -54,16 +54,6 @@ import java.util.Set;
*/ */
public abstract class IndexReader { public abstract class IndexReader {
/**
* This array contains all filename extensions used by Lucene's index files, with
* one exception, namely the extension made up from <code>.f</code> + a number.
* Also note that two of Lucene's files (<code>deletable</code> and
* <code>segments</code>) don't have any filename extension.
*/
public final static String FILENAME_EXTENSIONS[] = new String[] {
"cfs", "fnm", "fdx", "fdt", "tii", "tis", "frq", "prx", "del",
"tvx", "tvd", "tvf", "tvp" };
public static final class FieldOption { public static final class FieldOption {
private String option; private String option;
private FieldOption() { } private FieldOption() { }
@ -188,7 +178,7 @@ public abstract class IndexReader {
* {@link #isCurrent()} instead. * {@link #isCurrent()} instead.
*/ */
public static long lastModified(File directory) throws IOException { public static long lastModified(File directory) throws IOException {
return FSDirectory.fileModified(directory, Constants.INDEX_SEGMENTS_FILENAME); return FSDirectory.fileModified(directory, IndexFileNames.SEGMENTS);
} }
/** /**
@ -197,7 +187,7 @@ public abstract class IndexReader {
* {@link #isCurrent()} instead. * {@link #isCurrent()} instead.
*/ */
public static long lastModified(Directory directory) throws IOException { public static long lastModified(Directory directory) throws IOException {
return directory.fileModified(Constants.INDEX_SEGMENTS_FILENAME); return directory.fileModified(IndexFileNames.SEGMENTS);
} }
/** /**
@ -306,7 +296,7 @@ public abstract class IndexReader {
* @return <code>true</code> if an index exists; <code>false</code> otherwise * @return <code>true</code> if an index exists; <code>false</code> otherwise
*/ */
public static boolean indexExists(String directory) { public static boolean indexExists(String directory) {
return (new File(directory, Constants.INDEX_SEGMENTS_FILENAME)).exists(); return (new File(directory, IndexFileNames.SEGMENTS)).exists();
} }
/** /**
@ -316,7 +306,7 @@ public abstract class IndexReader {
* @return <code>true</code> if an index exists; <code>false</code> otherwise * @return <code>true</code> if an index exists; <code>false</code> otherwise
*/ */
public static boolean indexExists(File directory) { public static boolean indexExists(File directory) {
return (new File(directory, Constants.INDEX_SEGMENTS_FILENAME)).exists(); return (new File(directory, IndexFileNames.SEGMENTS)).exists();
} }
/** /**
@ -327,7 +317,7 @@ public abstract class IndexReader {
* @throws IOException if there is a problem with accessing the index * @throws IOException if there is a problem with accessing the index
*/ */
public static boolean indexExists(Directory directory) throws IOException { public static boolean indexExists(Directory directory) throws IOException {
return directory.fileExists(Constants.INDEX_SEGMENTS_FILENAME); return directory.fileExists(IndexFileNames.SEGMENTS);
} }
/** Returns the number of documents in this index. */ /** Returns the number of documents in this index. */

6
src/java/org/apache/lucene/index/IndexWriter.java
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@ -792,10 +792,10 @@ public class IndexWriter {
private final Vector readDeleteableFiles() throws IOException { private final Vector readDeleteableFiles() throws IOException {
Vector result = new Vector(); Vector result = new Vector();
if (!directory.fileExists(Constants.INDEX_DELETABLE_FILENAME)) if (!directory.fileExists(IndexFileNames.DELETABLE))
return result; return result;
IndexInput input = directory.openInput(Constants.INDEX_DELETABLE_FILENAME); IndexInput input = directory.openInput(IndexFileNames.DELETABLE);
try { try {
for (int i = input.readInt(); i > 0; i--) // read file names for (int i = input.readInt(); i > 0; i--) // read file names
result.addElement(input.readString()); result.addElement(input.readString());
@ -814,6 +814,6 @@ public class IndexWriter {
} finally { } finally {
output.close(); output.close();
} }
directory.renameFile("deleteable.new", Constants.INDEX_DELETABLE_FILENAME); directory.renameFile("deleteable.new", IndexFileNames.DELETABLE);
} }
} }

6
src/java/org/apache/lucene/index/SegmentInfos.java
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@ -42,7 +42,7 @@ final class SegmentInfos extends Vector {
public final void read(Directory directory) throws IOException { public final void read(Directory directory) throws IOException {
IndexInput input = directory.openInput(Constants.INDEX_SEGMENTS_FILENAME); IndexInput input = directory.openInput(IndexFileNames.SEGMENTS);
try { try {
int format = input.readInt(); int format = input.readInt();
if(format < 0){ // file contains explicit format info if(format < 0){ // file contains explicit format info
@ -92,7 +92,7 @@ final class SegmentInfos extends Vector {
} }
// install new segment info // install new segment info
directory.renameFile("segments.new", Constants.INDEX_SEGMENTS_FILENAME); directory.renameFile("segments.new", IndexFileNames.SEGMENTS);
} }
/** /**
@ -108,7 +108,7 @@ final class SegmentInfos extends Vector {
public static long readCurrentVersion(Directory directory) public static long readCurrentVersion(Directory directory)
throws IOException { throws IOException {
IndexInput input = directory.openInput(Constants.INDEX_SEGMENTS_FILENAME); IndexInput input = directory.openInput(IndexFileNames.SEGMENTS);
int format = 0; int format = 0;
long version = 0; long version = 0;
try { try {

18
src/java/org/apache/lucene/index/SegmentMerger.java
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@ -43,14 +43,6 @@ final class SegmentMerger {
private Vector readers = new Vector(); private Vector readers = new Vector();
private FieldInfos fieldInfos; private FieldInfos fieldInfos;
// File extensions of old-style index files
private static final String COMPOUND_EXTENSIONS[] = new String[] {
"fnm", "frq", "prx", "fdx", "fdt", "tii", "tis"
};
private static final String VECTOR_EXTENSIONS[] = new String[] {
"tvx", "tvd", "tvf"
};
/** This ctor used only by test code. /** This ctor used only by test code.
* *
* @param dir The Directory to merge the other segments into * @param dir The Directory to merge the other segments into
@ -120,11 +112,11 @@ final class SegmentMerger {
new CompoundFileWriter(directory, fileName); new CompoundFileWriter(directory, fileName);
Vector files = Vector files =
new Vector(COMPOUND_EXTENSIONS.length + fieldInfos.size()); new Vector(IndexFileNames.COMPOUND_EXTENSIONS.length + fieldInfos.size());
// Basic files // Basic files
for (int i = 0; i < COMPOUND_EXTENSIONS.length; i++) { for (int i = 0; i < IndexFileNames.COMPOUND_EXTENSIONS.length; i++) {
files.add(segment + "." + COMPOUND_EXTENSIONS[i]); files.add(segment + "." + IndexFileNames.COMPOUND_EXTENSIONS[i]);
} }
// Field norm files // Field norm files
@ -137,8 +129,8 @@ final class SegmentMerger {
// Vector files // Vector files
if (fieldInfos.hasVectors()) { if (fieldInfos.hasVectors()) {
for (int i = 0; i < VECTOR_EXTENSIONS.length; i++) { for (int i = 0; i < IndexFileNames.VECTOR_EXTENSIONS.length; i++) {
files.add(segment + "." + VECTOR_EXTENSIONS[i]); files.add(segment + "." + IndexFileNames.VECTOR_EXTENSIONS[i]);
} }
} }

4
src/java/org/apache/lucene/index/SegmentReader.java
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@ -248,8 +248,8 @@ class SegmentReader extends IndexReader {
Vector files() throws IOException { Vector files() throws IOException {
Vector files = new Vector(16); Vector files = new Vector(16);
for (int i = 0; i < FILENAME_EXTENSIONS.length; i++) { for (int i = 0; i < IndexFileNames.INDEX_EXTENSIONS.length; i++) {
String name = segment + "." + FILENAME_EXTENSIONS[i]; String name = segment + "." + IndexFileNames.INDEX_EXTENSIONS[i];
if (directory().fileExists(name)) if (directory().fileExists(name))
files.addElement(name); files.addElement(name);
} }