/** {@inheritDoc} */
@Override
public void addCancelRequestListener(final CancelRequestListener listener) {
Reject.ifNull(listener);
boolean invokeImmediately = false;
synchronized (stateLock) {
switch (state) {
case PENDING:
if (cancelRequestListeners == null) {
cancelRequestListeners = new LinkedList<>();
}
cancelRequestListeners.add(listener);
break;
case CANCEL_REQUESTED:
// Signal immediately outside lock.
invokeImmediately = true;
break;
case TOO_LATE:
case RESULT_SENT:
case CANCELLED:
/*
* No point in registering the callback since the request
* can never be cancelled now.
*/
break;
}
}
if (invokeImmediately) {
listener.handleCancelRequest(cancelRequestReason);
}
}
/** {@inheritDoc} */
@Override
public void removeCancelRequestListener(final CancelRequestListener listener) {
Reject.ifNull(listener);
synchronized (stateLock) {
if (cancelRequestListeners != null) {
cancelRequestListeners.remove(listener);
}
}
}
/**
* Attempts to convert the given field name, operator and value into an appropriate SearchFilter
* instance. The conversion used depends on the {@link QueryAttribute} configured for this field
* in the queryAttributes map.
*
* @param field Non null, The name of a queryable Application attribute.
* @param operator Non null, The query operator to use when comparing the field value to the
* valueAssertion.
* @param valueAssertion Non null, The value with which the Application field's value should be
* compared.
*/
protected SearchFilter comparison(
String field, SearchFilter.Operator operator, Object valueAssertion) {
Reject.ifNull(field, operator, valueAssertion);
QueryAttribute attribute = queryAttributes.get(field);
if (attribute == null) {
throw new UnsupportedOperationException("Unknown query field '" + field + "'");
}
return attribute.getFilter(operator, valueAssertion);
}
/**
* Constructs a script object with the given name, script body, language and variable bindings.
*
* @param name the name of the script.
* @param script the script itself.
* @param language the language that the script is written in.
* @param bindings the bindings used for the script.
*/
public ScriptObject(
final String name,
final String script,
final ScriptingLanguage language,
final Bindings bindings) {
Reject.ifNull(name, script, language);
this.name = name;
this.script = script;
this.language = language;
this.bindings = bindings;
}
/**
* Open a log with the provided log path, record parser and maximum size per log file.
*
* <p>If no log exists for the provided path, a new one is created.
*
* @param <K> Type of the key of a record, which must be comparable.
* @param <V> Type of the value of a record.
* @param replicationEnv The replication environment used to create this log.
* @param logPath Path of the log.
* @param parser Parser for encoding/decoding of records.
* @param rotationParameters Parameters for the log files rotation.
* @return a log
* @throws ChangelogException If a problem occurs during initialization.
*/
static synchronized <K extends Comparable<K>, V> Log<K, V> openLog(
final ReplicationEnvironment replicationEnv,
final File logPath,
final RecordParser<K, V> parser,
final LogRotationParameters rotationParameters)
throws ChangelogException {
Reject.ifNull(logPath, parser);
@SuppressWarnings("unchecked")
Log<K, V> log = (Log<K, V>) logsCache.get(logPath);
if (log == null) {
log = new Log<>(replicationEnv, logPath, parser, rotationParameters);
logsCache.put(logPath, log);
} else {
// TODO : check that parser and size limit are compatible with the existing one,
// and issue a warning if it is not the case
log.referenceCount++;
}
return log;
}
private <R extends ExtendedResult> void cancel(
final LocalizableMessage reason,
final ExtendedRequest<R> cancelRequest,
final LdapResultHandler<R> cancelResultHandler,
final boolean sendResult) {
Reject.ifNull(reason);
if (!isCancelSupported) {
if (cancelResultHandler != null) {
final Result result = Responses.newGenericExtendedResult(ResultCode.CANNOT_CANCEL);
cancelResultHandler.handleException(newLdapException(result));
}
return;
}
List<CancelRequestListener> tmpListeners = null;
boolean invokeResultHandler = false;
boolean resultHandlerIsSuccess = false;
synchronized (stateLock) {
switch (state) {
case PENDING:
/* Switch to CANCEL_REQUESTED state. */
cancelRequestReason = reason;
if (cancelResultHandler != null) {
cancelResultHandlers = new LinkedList<>();
cancelResultHandlers.add(
new ExtendedResultHandlerHolder<R>(cancelRequest, cancelResultHandler));
}
tmpListeners = cancelRequestListeners;
cancelRequestListeners = null;
state = RequestState.CANCEL_REQUESTED;
this.sendResult &= sendResult;
break;
case CANCEL_REQUESTED:
/*
* Cancel already request so listeners already invoked.
*/
if (cancelResultHandler != null) {
if (cancelResultHandlers == null) {
cancelResultHandlers = new LinkedList<>();
}
cancelResultHandlers.add(
new ExtendedResultHandlerHolder<R>(cancelRequest, cancelResultHandler));
}
break;
case TOO_LATE:
case RESULT_SENT:
/*
* Cannot cancel, so invoke result handler immediately
* outside of lock.
*/
if (cancelResultHandler != null) {
invokeResultHandler = true;
resultHandlerIsSuccess = false;
}
break;
case CANCELLED:
/*
* Multiple cancellation attempts. Clients should not do
* this, but the cancel will effectively succeed
* immediately, so invoke result handler immediately outside
* of lock.
*/
if (cancelResultHandler != null) {
invokeResultHandler = true;
resultHandlerIsSuccess = true;
}
break;
}
}
/* Invoke listeners outside of lock. */
if (tmpListeners != null) {
for (final CancelRequestListener listener : tmpListeners) {
listener.handleCancelRequest(reason);
}
}
if (invokeResultHandler) {
if (resultHandlerIsSuccess) {
final R result =
cancelRequest.getResultDecoder().newExtendedErrorResult(ResultCode.SUCCESS, "", "");
cancelResultHandler.handleResult(result);
} else {
final Result result = Responses.newGenericExtendedResult(ResultCode.TOO_LATE);
cancelResultHandler.handleException(newLdapException(result));
}
}
}
/**
* Creates a new {@code FallbackAuthContext} managing the provided {@code AsyncServerAuthModule}s.
*
* @param logger The {@link Logger} instance.
* @param authModules The {@code List} of {@code AsyncServerAuthModule}s.
*/
public FallbackAuthContext(Logger logger, List<AsyncServerAuthModule> authModules) {
Reject.ifNull(logger, authModules);
this.logger = logger;
this.authModules = withValidation(withAuditing(withLogging(logger, authModules)));
}
/**
* Sets the decoding options which will be used to control how requests and responses are decoded.
*
* @param decodeOptions The decoding options which will be used to control how requests and
* responses are decoded (never {@code null}).
* @return A reference to this set of options.
* @throws NullPointerException If {@code decodeOptions} was {@code null}.
*/
public T setDecodeOptions(final DecodeOptions decodeOptions) {
Reject.ifNull(decodeOptions);
this.decodeOptions = decodeOptions;
return getThis();
}
public void put(WriteableTransaction txn, EntryID entryID, ByteSequence encodedEntry)
throws StorageRuntimeException, DirectoryException {
Reject.ifNull(txn, "txn must not be null.");
txn.put(getName(), entryID.toByteString(), encodedEntry);
}
/**
* Creates a new Root DSE instance backed by the provided entry. Modifications made to {@code
* entry} will be reflected in the returned Root DSE. The returned Root DSE instance is
* unmodifiable and attempts to use modify any of the returned collections will result in a {@code
* UnsupportedOperationException}.
*
* @param entry The Root DSE entry.
* @return A Root DSE instance backed by the provided entry.
* @throws NullPointerException If {@code entry} was {@code null} .
*/
public static RootDSE valueOf(Entry entry) {
Reject.ifNull(entry);
return new RootDSE(entry);
}
/**
* Constructs the compiled script with the given script engine and compiled Rhino script object.
*
* @param engine the script engine to use to run the compiled script. Must not be null.
* @param compiledScript the compiled script itself. Must not be null.
*/
RhinoCompiledScript(final RhinoScriptEngine engine, final Script compiledScript) {
Reject.ifNull(engine, compiledScript);
this.engine = engine;
this.compiledScript = compiledScript;
}
/**
* Creates a new contains value condition.
*
* @param propertyName The property name.
* @param stringValue The string representation of the required property value.
*/
public ContainsCondition(String propertyName, String stringValue) {
Reject.ifNull(propertyName, stringValue);
this.propertyName = propertyName;
this.propertyStringValue = stringValue;
}
