Examples with NamespaceRecord org.apache.jackrabbit.core.cluster.NamespaceRecord used on opensource projects

Example 1 with NamespaceRecord

use of org.apache.jackrabbit.core.cluster.NamespaceRecord in project jackrabbit by apache.

the class SearchIndex method getChangeLogRecords.

/**
     * Polls the underlying journal for events of the type ChangeLogRecord that
     * happened after a given revision, on a given workspace.
     *
     * @param revision
     *            starting revision
     * @param workspace
     *            the workspace name
     * @return
     */
private List<ChangeLogRecord> getChangeLogRecords(long revision, final String workspace) {
    log.debug("Get changes from the Journal for revision {} and workspace {}.", revision, workspace);
    ClusterNode cn = getContext().getClusterNode();
    if (cn == null) {
        return Collections.emptyList();
    }
    Journal journal = cn.getJournal();
    final List<ChangeLogRecord> events = new ArrayList<ChangeLogRecord>();
    ClusterRecordDeserializer deserializer = new ClusterRecordDeserializer();
    RecordIterator records = null;
    try {
        records = journal.getRecords(revision);
        while (records.hasNext()) {
            Record record = records.nextRecord();
            if (!record.getProducerId().equals(cn.getId())) {
                continue;
            }
            ClusterRecord r = null;
            try {
                r = deserializer.deserialize(record);
            } catch (JournalException e) {
                log.error("Unable to read revision '" + record.getRevision() + "'.", e);
            }
            if (r == null) {
                continue;
            }
            r.process(new ClusterRecordProcessor() {

                public void process(ChangeLogRecord record) {
                    String eventW = record.getWorkspace();
                    if (eventW != null ? eventW.equals(workspace) : workspace == null) {
                        events.add(record);
                    }
                }

                public void process(LockRecord record) {
                }

                public void process(NamespaceRecord record) {
                }

                public void process(NodeTypeRecord record) {
                }

                public void process(PrivilegeRecord record) {
                }

                public void process(WorkspaceRecord record) {
                }
            });
        }
    } catch (JournalException e1) {
        log.error(e1.getMessage(), e1);
    } finally {
        if (records != null) {
            records.close();
        }
    }
    return events;
}