It would be useful to have a command-line utility (i.e., a static main(String[]) method somewhere) that lists the files and sizes contained inside a CFS file, and perhaps even an option to unpack it. Anyone care to contribute this method?
Here's a diff to add this functionality to CompoundFileReader. Comments are of course welcome, as I'm not that fantastic a Java hacker.
-garrett
Index: src/java/org/apache/lucene/index/CompoundFileReader.java
===================================================================
RCS file:
/home/cvspublic/jakarta-lucene/src/java/org/apache/lucene/index/CompoundFileReader.java,v
retrieving revision 1.14
diff -u -r1.14 CompoundFileReader.java
--- src/java/org/apache/lucene/index/CompoundFileReader.java 28 Sep 2004
18:15:52 -0000 1.14
+++ src/java/org/apache/lucene/index/CompoundFileReader.java 25 Dec 2004
04:25:11 -0000
@@ -17,12 +17,14 @@
*/
import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.IndexInput;
import org.apache.lucene.store.BufferedIndexInput;
import org.apache.lucene.store.IndexOutput;
import org.apache.lucene.store.Lock;
import java.util.HashMap;
import java.io.IOException;
+import java.io.FileOutputStream;
/**
@@ -233,5 +235,61 @@
}
+ }
+
+ public static void main(String [] args) {
+ String dirname = null, filename = null;
+ boolean extract = false;
+
+ for (int i = 0; i < args.length; ++i) {
+ if (args[i].equals("-extract")) {
+ extract = true;
+ } else if (dirname == null) {
+ dirname = args[i];
+ } else if (filename == null) {
+ filename = args[i];
+ }
+ }
+
+ if (dirname == null || filename == null) {
+ System.out.println("Usage: CompoundFileReader directory cfsfile");
+ System.out.println("");
+ System.out.println("Prints the filename and size of each file "
+ + "within cfsfile.");
+ System.out.println("");
+ System.out.println("Add the -extract flag to extract files to the "
+ + "current working directory.");
+
+ return;
+ }
+
+ try {
+ Directory dir = FSDirectory.getDirectory(dirname, false);
+
+ CompoundFileReader cfr = new CompoundFileReader(dir, filename);
+
+ String [] files = cfr.list();
+
+ for (int i = 0; i < files.length; ++i) {
+ long len = cfr.fileLength(files[i]);
+
+ System.out.println(files[i] + "\t: " + len + " bytes");
+
+ if (extract) {
+ IndexInput ii = cfr.openInput(files[i]);
+
+ FileOutputStream f = new FileOutputStream(files[i]);
+
+ while (len-- != 0) {
+ byte b = ii.readByte();
+ f.write(b);
+ }
+
+ f.close();
+ }
+ }
+ } catch (IOException ioe) {
+ ioe.printStackTrace();
+ }
}
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