Examples with IndexWriter org.apache.lucene.index.IndexWriter used on opensource projects

Example 86 with IndexWriter

use of org.apache.lucene.index.IndexWriter in project gitblit by gitblit.

the class LuceneService method updateIndex.

/**
	 * Updates a repository index incrementally from the last indexed commits.
	 *
	 * @param model
	 * @param repository
	 * @return IndexResult
	 */
private IndexResult updateIndex(RepositoryModel model, Repository repository) {
    IndexResult result = new IndexResult();
    try {
        FileBasedConfig config = getConfig(repository);
        config.load();
        // build a quick lookup of annotated tags
        Map<String, List<String>> tags = new HashMap<String, List<String>>();
        for (RefModel tag : JGitUtils.getTags(repository, false, -1)) {
            if (!tag.isAnnotatedTag()) {
                // skip non-annotated tags
                continue;
            }
            if (!tags.containsKey(tag.getObjectId().getName())) {
                tags.put(tag.getReferencedObjectId().getName(), new ArrayList<String>());
            }
            tags.get(tag.getReferencedObjectId().getName()).add(tag.displayName);
        }
        // detect branch deletion
        // first assume all branches are deleted and then remove each
        // existing branch from deletedBranches during indexing
        Set<String> deletedBranches = new TreeSet<String>();
        for (String alias : config.getNames(CONF_ALIAS)) {
            String branch = config.getString(CONF_ALIAS, null, alias);
            deletedBranches.add(branch);
        }
        // get the local branches
        List<RefModel> branches = JGitUtils.getLocalBranches(repository, true, -1);
        // sort them by most recently updated
        Collections.sort(branches, new Comparator<RefModel>() {

            @Override
            public int compare(RefModel ref1, RefModel ref2) {
                return ref2.getDate().compareTo(ref1.getDate());
            }
        });
        // reorder default branch to first position
        RefModel defaultBranch = null;
        ObjectId defaultBranchId = JGitUtils.getDefaultBranch(repository);
        for (RefModel branch : branches) {
            if (branch.getObjectId().equals(defaultBranchId)) {
                defaultBranch = branch;
                break;
            }
        }
        branches.remove(defaultBranch);
        branches.add(0, defaultBranch);
        // walk through each branches
        for (RefModel branch : branches) {
            String branchName = branch.getName();
            boolean indexBranch = false;
            if (model.indexedBranches.contains(com.gitblit.Constants.DEFAULT_BRANCH) && branch.equals(defaultBranch)) {
                // indexing "default" branch
                indexBranch = true;
            } else if (branch.getName().startsWith(com.gitblit.Constants.R_META)) {
                // ignore internal meta branches
                indexBranch = false;
            } else {
                // normal explicit branch check
                indexBranch = model.indexedBranches.contains(branch.getName());
            }
            // if this branch is not specifically indexed then skip
            if (!indexBranch) {
                continue;
            }
            // remove this branch from the deletedBranches set
            deletedBranches.remove(branchName);
            // determine last commit
            String keyName = getBranchKey(branchName);
            String lastCommit = config.getString(CONF_BRANCH, null, keyName);
            List<RevCommit> revs;
            if (StringUtils.isEmpty(lastCommit)) {
                // new branch/unindexed branch, get all commits on branch
                revs = JGitUtils.getRevLog(repository, branchName, 0, -1);
            } else {
                // pre-existing branch, get changes since last commit
                revs = JGitUtils.getRevLog(repository, lastCommit, branchName);
            }
            if (revs.size() > 0) {
                result.branchCount += 1;
            }
            // reverse the list of commits so we start with the first commit
            Collections.reverse(revs);
            for (RevCommit commit : revs) {
                // index a commit
                result.add(index(model.name, repository, branchName, commit));
            }
            // update the config
            config.setString(CONF_ALIAS, null, keyName, branchName);
            config.setString(CONF_BRANCH, null, keyName, branch.getObjectId().getName());
            config.save();
        }
        // unless a branch really was deleted and no longer exists
        if (deletedBranches.size() > 0) {
            for (String branch : deletedBranches) {
                IndexWriter writer = getIndexWriter(model.name);
                writer.deleteDocuments(new Term(FIELD_BRANCH, branch));
                writer.commit();
            }
        }
        result.success = true;
    } catch (Throwable t) {
        logger.error(MessageFormat.format("Exception while updating {0} Lucene index", model.name), t);
    }
    return result;
}

Example 87 with IndexWriter

use of org.apache.lucene.index.IndexWriter in project gitblit by gitblit.

the class LuceneService method index.

/**
	 * Incrementally index an object for the repository.
	 *
	 * @param repositoryName
	 * @param doc
	 * @return true, if successful
	 */
private boolean index(String repositoryName, Document doc) {
    try {
        IndexWriter writer = getIndexWriter(repositoryName);
        writer.addDocument(doc);
        writer.commit();
        resetIndexSearcher(repositoryName);
        return true;
    } catch (Exception e) {
        logger.error(MessageFormat.format("Exception while incrementally updating {0} Lucene index", repositoryName), e);
    }
    return false;
}

Example 88 with IndexWriter

use of org.apache.lucene.index.IndexWriter in project gitblit by gitblit.

the class LuceneService method index.

/**
	 * Incrementally update the index with the specified commit for the
	 * repository.
	 *
	 * @param repositoryName
	 * @param repository
	 * @param branch
	 *            the fully qualified branch name (e.g. refs/heads/master)
	 * @param commit
	 * @return true, if successful
	 */
private IndexResult index(String repositoryName, Repository repository, String branch, RevCommit commit) {
    IndexResult result = new IndexResult();
    try {
        String[] encodings = storedSettings.getStrings(Keys.web.blobEncodings).toArray(new String[0]);
        List<PathChangeModel> changedPaths = JGitUtils.getFilesInCommit(repository, commit);
        String revDate = DateTools.timeToString(commit.getCommitTime() * 1000L, Resolution.MINUTE);
        IndexWriter writer = getIndexWriter(repositoryName);
        for (PathChangeModel path : changedPaths) {
            if (path.isSubmodule()) {
                continue;
            }
            // delete the indexed blob
            deleteBlob(repositoryName, branch, path.name);
            // re-index the blob
            if (!ChangeType.DELETE.equals(path.changeType)) {
                result.blobCount++;
                Document doc = new Document();
                doc.add(new Field(FIELD_OBJECT_TYPE, SearchObjectType.blob.name(), StringField.TYPE_STORED));
                doc.add(new Field(FIELD_BRANCH, branch, TextField.TYPE_STORED));
                doc.add(new Field(FIELD_COMMIT, commit.getName(), TextField.TYPE_STORED));
                doc.add(new Field(FIELD_PATH, path.path, TextField.TYPE_STORED));
                doc.add(new Field(FIELD_DATE, revDate, StringField.TYPE_STORED));
                doc.add(new Field(FIELD_AUTHOR, getAuthor(commit), TextField.TYPE_STORED));
                doc.add(new Field(FIELD_COMMITTER, getCommitter(commit), TextField.TYPE_STORED));
                // determine extension to compare to the extension
                // blacklist
                String ext = null;
                String name = path.name.toLowerCase();
                if (name.indexOf('.') > -1) {
                    ext = name.substring(name.lastIndexOf('.') + 1);
                }
                if (StringUtils.isEmpty(ext) || !excludedExtensions.contains(ext)) {
                    // read the blob content
                    String str = JGitUtils.getStringContent(repository, commit.getTree(), path.path, encodings);
                    if (str != null) {
                        doc.add(new Field(FIELD_CONTENT, str, TextField.TYPE_STORED));
                        writer.addDocument(doc);
                    }
                }
            }
        }
        writer.commit();
        // get any annotated commit tags
        List<String> commitTags = new ArrayList<String>();
        for (RefModel ref : JGitUtils.getTags(repository, false, -1)) {
            if (ref.isAnnotatedTag() && ref.getReferencedObjectId().equals(commit.getId())) {
                commitTags.add(ref.displayName);
            }
        }
        // create and write the Lucene document
        Document doc = createDocument(commit, commitTags);
        doc.add(new Field(FIELD_BRANCH, branch, TextField.TYPE_STORED));
        result.commitCount++;
        result.success = index(repositoryName, doc);
    } catch (Exception e) {
        logger.error(MessageFormat.format("Exception while indexing commit {0} in {1}", commit.getId().getName(), repositoryName), e);
    }
    return result;
}

Example 89 with IndexWriter

use of org.apache.lucene.index.IndexWriter in project gitblit by gitblit.

the class LuceneService method reindex.

/**
	 * This completely indexes the repository and will destroy any existing
	 * index.
	 *
	 * @param repositoryName
	 * @param repository
	 * @return IndexResult
	 */
public IndexResult reindex(RepositoryModel model, Repository repository) {
    IndexResult result = new IndexResult();
    if (!deleteIndex(model.name)) {
        return result;
    }
    try {
        String[] encodings = storedSettings.getStrings(Keys.web.blobEncodings).toArray(new String[0]);
        FileBasedConfig config = getConfig(repository);
        Set<String> indexedCommits = new TreeSet<String>();
        IndexWriter writer = getIndexWriter(model.name);
        // build a quick lookup of tags
        Map<String, List<String>> tags = new HashMap<String, List<String>>();
        for (RefModel tag : JGitUtils.getTags(repository, false, -1)) {
            if (!tag.isAnnotatedTag()) {
                // skip non-annotated tags
                continue;
            }
            if (!tags.containsKey(tag.getReferencedObjectId().getName())) {
                tags.put(tag.getReferencedObjectId().getName(), new ArrayList<String>());
            }
            tags.get(tag.getReferencedObjectId().getName()).add(tag.displayName);
        }
        ObjectReader reader = repository.newObjectReader();
        // get the local branches
        List<RefModel> branches = JGitUtils.getLocalBranches(repository, true, -1);
        // sort them by most recently updated
        Collections.sort(branches, new Comparator<RefModel>() {

            @Override
            public int compare(RefModel ref1, RefModel ref2) {
                return ref2.getDate().compareTo(ref1.getDate());
            }
        });
        // reorder default branch to first position
        RefModel defaultBranch = null;
        ObjectId defaultBranchId = JGitUtils.getDefaultBranch(repository);
        for (RefModel branch : branches) {
            if (branch.getObjectId().equals(defaultBranchId)) {
                defaultBranch = branch;
                break;
            }
        }
        branches.remove(defaultBranch);
        branches.add(0, defaultBranch);
        // walk through each branch
        for (RefModel branch : branches) {
            boolean indexBranch = false;
            if (model.indexedBranches.contains(com.gitblit.Constants.DEFAULT_BRANCH) && branch.equals(defaultBranch)) {
                // indexing "default" branch
                indexBranch = true;
            } else if (branch.getName().startsWith(com.gitblit.Constants.R_META)) {
                // skip internal meta branches
                indexBranch = false;
            } else {
                // normal explicit branch check
                indexBranch = model.indexedBranches.contains(branch.getName());
            }
            // if this branch is not specifically indexed then skip
            if (!indexBranch) {
                continue;
            }
            String branchName = branch.getName();
            RevWalk revWalk = new RevWalk(reader);
            RevCommit tip = revWalk.parseCommit(branch.getObjectId());
            String tipId = tip.getId().getName();
            String keyName = getBranchKey(branchName);
            config.setString(CONF_ALIAS, null, keyName, branchName);
            config.setString(CONF_BRANCH, null, keyName, tipId);
            // index the blob contents of the tree
            TreeWalk treeWalk = new TreeWalk(repository);
            treeWalk.addTree(tip.getTree());
            treeWalk.setRecursive(true);
            Map<String, ObjectId> paths = new TreeMap<String, ObjectId>();
            while (treeWalk.next()) {
                // ensure path is not in a submodule
                if (treeWalk.getFileMode(0) != FileMode.GITLINK) {
                    paths.put(treeWalk.getPathString(), treeWalk.getObjectId(0));
                }
            }
            ByteArrayOutputStream os = new ByteArrayOutputStream();
            byte[] tmp = new byte[32767];
            RevWalk commitWalk = new RevWalk(reader);
            commitWalk.markStart(tip);
            RevCommit commit;
            while ((paths.size() > 0) && (commit = commitWalk.next()) != null) {
                TreeWalk diffWalk = new TreeWalk(reader);
                int parentCount = commit.getParentCount();
                switch(parentCount) {
                    case 0:
                        diffWalk.addTree(new EmptyTreeIterator());
                        break;
                    case 1:
                        diffWalk.addTree(getTree(commitWalk, commit.getParent(0)));
                        break;
                    default:
                        // skip merge commits
                        continue;
                }
                diffWalk.addTree(getTree(commitWalk, commit));
                diffWalk.setFilter(ANY_DIFF);
                diffWalk.setRecursive(true);
                while ((paths.size() > 0) && diffWalk.next()) {
                    String path = diffWalk.getPathString();
                    if (!paths.containsKey(path)) {
                        continue;
                    }
                    // remove path from set
                    ObjectId blobId = paths.remove(path);
                    result.blobCount++;
                    // index the blob metadata
                    String blobAuthor = getAuthor(commit);
                    String blobCommitter = getCommitter(commit);
                    String blobDate = DateTools.timeToString(commit.getCommitTime() * 1000L, Resolution.MINUTE);
                    Document doc = new Document();
                    doc.add(new Field(FIELD_OBJECT_TYPE, SearchObjectType.blob.name(), StringField.TYPE_STORED));
                    doc.add(new Field(FIELD_BRANCH, branchName, TextField.TYPE_STORED));
                    doc.add(new Field(FIELD_COMMIT, commit.getName(), TextField.TYPE_STORED));
                    doc.add(new Field(FIELD_PATH, path, TextField.TYPE_STORED));
                    doc.add(new Field(FIELD_DATE, blobDate, StringField.TYPE_STORED));
                    doc.add(new Field(FIELD_AUTHOR, blobAuthor, TextField.TYPE_STORED));
                    doc.add(new Field(FIELD_COMMITTER, blobCommitter, TextField.TYPE_STORED));
                    // determine extension to compare to the extension
                    // blacklist
                    String ext = null;
                    String name = path.toLowerCase();
                    if (name.indexOf('.') > -1) {
                        ext = name.substring(name.lastIndexOf('.') + 1);
                    }
                    // index the blob content
                    if (StringUtils.isEmpty(ext) || !excludedExtensions.contains(ext)) {
                        ObjectLoader ldr = repository.open(blobId, Constants.OBJ_BLOB);
                        InputStream in = ldr.openStream();
                        int n;
                        while ((n = in.read(tmp)) > 0) {
                            os.write(tmp, 0, n);
                        }
                        in.close();
                        byte[] content = os.toByteArray();
                        String str = StringUtils.decodeString(content, encodings);
                        doc.add(new Field(FIELD_CONTENT, str, TextField.TYPE_STORED));
                        os.reset();
                    }
                    // add the blob to the index
                    writer.addDocument(doc);
                }
            }
            os.close();
            // index the tip commit object
            if (indexedCommits.add(tipId)) {
                Document doc = createDocument(tip, tags.get(tipId));
                doc.add(new Field(FIELD_BRANCH, branchName, TextField.TYPE_STORED));
                writer.addDocument(doc);
                result.commitCount += 1;
                result.branchCount += 1;
            }
            // traverse the log and index the previous commit objects
            RevWalk historyWalk = new RevWalk(reader);
            historyWalk.markStart(historyWalk.parseCommit(tip.getId()));
            RevCommit rev;
            while ((rev = historyWalk.next()) != null) {
                String hash = rev.getId().getName();
                if (indexedCommits.add(hash)) {
                    Document doc = createDocument(rev, tags.get(hash));
                    doc.add(new Field(FIELD_BRANCH, branchName, TextField.TYPE_STORED));
                    writer.addDocument(doc);
                    result.commitCount += 1;
                }
            }
        }
        // finished
        reader.close();
        // commit all changes and reset the searcher
        config.save();
        writer.commit();
        resetIndexSearcher(model.name);
        result.success();
    } catch (Exception e) {
        logger.error("Exception while reindexing " + model.name, e);
    }
    return result;
}

Example 90 with IndexWriter

use of org.apache.lucene.index.IndexWriter in project gitblit by gitblit.

the class LuceneService method getIndexSearcher.

/**
	 * Gets an index searcher for the repository.
	 *
	 * @param repository
	 * @return
	 * @throws IOException
	 */
private IndexSearcher getIndexSearcher(String repository) throws IOException {
    IndexSearcher searcher = searchers.get(repository);
    if (searcher == null) {
        IndexWriter writer = getIndexWriter(repository);
        searcher = new IndexSearcher(DirectoryReader.open(writer, true));
        searchers.put(repository, searcher);
    }
    return searcher;
}