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From Bill Janssen <jans...@parc.com>
Subject Re: lucene-core-2.2.0.jar broken? CorruptIndexException?
Date Thu, 29 Nov 2007 13:49:06 GMT
> Could you post this part of the code (deleting) too?

Here it is:


    private static void remove (File index_file, String[] doc_ids, int start) {

        String number;
        String list;
        Term term;
        TermDocs matches;

        if (debug_mode)
            System.err.println("index file is " + index_file + " and it " + (index_file.exists()
? "exists." : "does not exist."));

        try {

            if (index_file.exists() && (doc_ids.length > start)) {
                IndexReader reader = IndexReader.open(index_file);
                try {
                    for (int i = start;  i < doc_ids.length;  i++) {
                        term = new Term("id", doc_ids[i]);
                        int deleted = reader.deleteDocuments(term);
                        System.out.println("Deleted " + deleted + " existing instances of
" + doc_ids[i]);
                    }
                } finally {
                    reader.close();
                }
            }

        } catch (Exception e) {
	    if (debug_mode) {
              e.printStackTrace(System.err);
            } else {
                System.out.println("* LuceneIndexing 'remove' raised " + e.getClass() + "
with message " + e.getMessage());
                System.err.println("LuceneIndexing 'remove': caught a " + e.getClass() +
                                   "\n with message: " + e.getMessage());
                System.out.flush();
            }
            System.exit(JAVA_EXCEPTION);
        }
        System.out.flush();
    }

    private static void update (File index_file, File doc_root_dir, String[] ids, int start)
{

        ExtractIndexingInfo.DocumentIterator docit;
        String number;

        remove (index_file, ids, start);

        try {

            // Now add the documents to the index
            IndexWriter writer = new IndexWriter(index_file, new StandardAnalyzer(), !index_file.exists());
            if (debug_mode)
                writer.setInfoStream(System.err);
            writer.setMaxFieldLength(Integer.MAX_VALUE);

            try {
                for (int i = start;  i < ids.length;  i ++) {
                    docit = build_document_iterator(doc_root_dir, ids[i]);
                    int count = 0;
                    while (docit.hasNext()) {
                        writer.addDocument((Document)(docit.next()));
                        count += 1;
                    }
                    System.out.println("Added " + docit.id + " (" + count + " versions)");
                    System.out.flush();
                }
            } finally {
                // And close the index
                System.out.println("Optimizing...");
                // See http://www.gossamer-threads.com/lists/lucene/java-dev/47895 about optimize
                // Can fail if low on disk space
                writer.optimize();
                writer.close();
            }

        } catch (Exception e) {
            if (debug_mode) {
                e.printStackTrace(System.err);
            } else {
                System.out.println("* Lucene search engine raised " + e.getClass() + " with
message " + e.getMessage());
                System.err.println(" 'update' caught a " + e.getClass() +
                                   "\n with message: " + e.getMessage());
                System.out.flush();
            }
            System.exit(JAVA_EXCEPTION);
        }
        System.out.flush();
    }

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