Examples with ChangeLogEntry com.unboundid.ldap.sdk.ChangeLogEntry used on opensource projects

Example 21 with ChangeLogEntry

use of com.unboundid.ldap.sdk.ChangeLogEntry in project ldapsdk by pingidentity.

the class InMemoryRequestHandler method addChangeLogEntry.

/**
 * Adds the provided changelog entry to the data set, removing an old entry if
 * necessary to remain within the maximum allowed number of changes.  This
 * must only be called from a synchronized method, and the change number for
 * the changelog entry must have been obtained by calling
 * {@code lastChangeNumber.incrementAndGet()}.
 *
 * @param  e        The changelog entry to add to the data set.
 * @param  authzDN  The authorization DN for the change.
 */
private void addChangeLogEntry(@NotNull final ChangeLogEntry e, @NotNull final DN authzDN) {
    // Construct the DN object to use for the entry and put it in the map.
    final long changeNumber = e.getChangeNumber();
    final Schema schema = schemaRef.get();
    final DN dn = new DN(new RDN("changeNumber", String.valueOf(changeNumber), schema), changeLogBaseDN);
    final Entry entry = e.duplicate();
    if (generateOperationalAttributes) {
        final Date d = new Date();
        entry.addAttribute(new Attribute("entryDN", DistinguishedNameMatchingRule.getInstance(), dn.toNormalizedString()));
        entry.addAttribute(new Attribute("entryUUID", CryptoHelper.getRandomUUID().toString()));
        entry.addAttribute(new Attribute("subschemaSubentry", DistinguishedNameMatchingRule.getInstance(), subschemaSubentryDN.toString()));
        entry.addAttribute(new Attribute("creatorsName", DistinguishedNameMatchingRule.getInstance(), authzDN.toString()));
        entry.addAttribute(new Attribute("createTimestamp", GeneralizedTimeMatchingRule.getInstance(), StaticUtils.encodeGeneralizedTime(d)));
        entry.addAttribute(new Attribute("modifiersName", DistinguishedNameMatchingRule.getInstance(), authzDN.toString()));
        entry.addAttribute(new Attribute("modifyTimestamp", GeneralizedTimeMatchingRule.getInstance(), StaticUtils.encodeGeneralizedTime(d)));
    }
    entryMap.put(dn, new ReadOnlyEntry(entry));
    indexAdd(entry);
    // Update the first change number and/or trim the changelog if necessary.
    final long firstNumber = firstChangeNumber.get();
    if (changeNumber == 1L) {
        // It's the first change, so we need to set the first change number.
        firstChangeNumber.set(1);
    } else {
        // See if we need to trim an entry.
        final long numChangeLogEntries = changeNumber - firstNumber + 1;
        if (numChangeLogEntries > maxChangelogEntries) {
            // We need to delete the first changelog entry and increment the
            // first change number.
            firstChangeNumber.incrementAndGet();
            final Entry deletedEntry = entryMap.remove(new DN(new RDN("changeNumber", String.valueOf(firstNumber), schema), changeLogBaseDN));
            indexDelete(deletedEntry);
        }
    }
}