if (args.length < 3) {
System.err.println("Usage: IndexMergeTool <mergedIndex> <index1> <index2> [index3] ...");
System.exit(1);
}
File mergedIndex = new File(args[0]);
IndexWriter writer = new IndexWriter(mergedIndex, new SimpleAnalyzer(), true);
Directory[] indexes = new Directory[args.length - 1];
for (int i = 1; i < args.length; i++) {
indexes[i - 1] = FSDirectory.getDirectory(args[i], false);
}
System.out.println("Merging...");
writer.addIndexes(indexes);
System.out.println("Optimizing...");
writer.optimize();
writer.close();
System.out.println("Done.");
