com.epam.deltix.qsrv.hf.tickdb.pub.DirectTickDBClient Maven / Gradle / Ivy
/*
* Copyright 2024 EPAM Systems, Inc
*
* See the NOTICE file distributed with this work for additional information
* regarding copyright ownership. Licensed under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.epam.deltix.qsrv.hf.tickdb.pub;
import com.epam.deltix.data.stream.DXChannel;
import com.epam.deltix.qsrv.hf.pub.md.ClassDescriptor;
import com.epam.deltix.qsrv.hf.pub.md.ClassSet;
import com.epam.deltix.qsrv.hf.tickdb.lang.pub.Token;
import com.epam.deltix.streaming.MessageChannel;
import com.epam.deltix.streaming.MessageSource;
import com.epam.deltix.timebase.messages.IdentityKey;
import com.epam.deltix.timebase.messages.InstrumentMessage;
import com.epam.deltix.qsrv.hf.pub.md.MetaData;
import com.epam.deltix.qsrv.hf.pub.md.RecordClassDescriptor;
import com.epam.deltix.qsrv.hf.tickdb.pub.query.InstrumentMessageSource;
import com.epam.deltix.qsrv.hf.tickdb.pub.query.Parameter;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.ConsumerPreferences;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.DirectChannel;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.MessagePoller;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.MessageProcessor;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.TopicDB;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.PublisherPreferences;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.exception.DuplicateTopicException;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.exception.TopicNotFoundException;
import com.epam.deltix.qsrv.hf.tickdb.pub.topic.settings.TopicSettings;
import com.epam.deltix.util.io.idlestrat.IdleStrategy;
import com.epam.deltix.util.lang.Disposable;
import com.epam.deltix.util.lang.GrowthPolicy;
import com.epam.deltix.util.parsers.CompilationException;
import com.epam.deltix.util.parsers.Element;
import javax.annotation.Nullable;
import javax.annotation.ParametersAreNonnullByDefault;
import java.io.File;
import java.util.List;
import java.util.concurrent.ThreadFactory;
/**
* In-process client with separate open/close lifecycle.
*/
public class DirectTickDBClient implements DXTickDB {
private volatile Boolean readOnly = null;
private final DXTickDB server;
private final TopicDB topicDBWrapper;
public DirectTickDBClient (DXTickDB delegate) {
this.server = delegate;
this.topicDBWrapper = new TopicDBWrapper();
}
@Override
public String toString () {
return getId ();
}
@Override
public void close () {
readOnly = null;
}
@Override
public void open (boolean readOnly) {
this.readOnly = readOnly;
}
protected final void assertOpen () {
if (readOnly == null)
throw new IllegalStateException ("closed");
}
protected final void assertWritable () {
if (!Boolean.FALSE.equals (readOnly))
throw new IllegalStateException ("closed or read-only");
}
protected final UnsupportedOperationException USX () {
return new UnsupportedOperationException ("Not allowed on client");
}
@Override
public boolean isReadOnly () {
assertOpen ();
return readOnly;
}
@Override
public boolean isOpen () {
return readOnly != null;
}
@Override
public String getId () {
return "DTC (" + server.getId () + ")";
}
@Override
public void format () {
throw USX ();
}
@Override
public void delete () {
throw USX ();
}
// @Override
// public TickCursor select (
// long time,
// SelectionOptions options,
// String [] types,
// IdentityKey [] entities,
// TickStream ... streams
// )
// {
// assertOpen ();
// return server.select (time, options, types, entities, streams);
// }
@Override
public TickCursor select(long time, SelectionOptions options, String[] types, CharSequence[] symbols, TickStream... streams) {
assertOpen ();
return server.select (time, options, types, symbols, streams);
}
@Override
public TickCursor select(long time, SelectionOptions options, String[] types, IdentityKey[] ids, TickStream... streams) {
assertOpen ();
return server.select (time, options, types, ids, streams);
}
@Override
public TickCursor select(long time, SelectionOptions options, String[] types, TickStream... streams) {
assertOpen ();
return server.select (time, options, types, streams);
}
@Override
public TickCursor select(long time, SelectionOptions options, TickStream... streams) {
assertOpen ();
return server.select (time, options, streams);
}
// @Override
// public long getStreamVersion () {
// assertOpen ();
// return server.getStreamVersion ();
// }
@Override
public TickCursor createCursor (
SelectionOptions options,
TickStream ... streams
)
{
assertOpen ();
return server.createCursor (options, streams);
}
@Override
public void warmUp () {
throw USX ();
}
@Override
public void trimToSize () {
assertWritable ();
server.trimToSize ();
}
@Override
public void setGrowthPolicy (GrowthPolicy policy) {
throw USX ();
}
@Override
public DXTickStream [] listStreams () {
assertOpen ();
return server.listStreams ();
}
@Override
public DXTickStream getStream (String key) {
assertOpen ();
return server.getStream (key);
}
@Override
public DXChannel[] listChannels() {
assertOpen ();
return server.listChannels ();
}
@Override
public long getSizeOnDisk () {
assertOpen ();
return server.getSizeOnDisk ();
}
@Override
public long getServerTime () {
assertOpen ();
return server.getServerTime ();
}
@Override
public long getMetaDataVersion () {
assertOpen ();
return server.getMetaDataVersion ();
}
@Override
public MetaData getMetaData () {
assertOpen ();
return server.getMetaData ();
}
@Override
public File [] getDbDirs () {
throw USX ();
}
@Override
public ClassSet describeQuery(String qql, SelectionOptions options, Parameter... params) throws CompilationException {
assertOpen();
return server.describeQuery(qql,options, params);
}
// @Override
// public InstrumentMessageSource executeQuery(
// String qql,
// SelectionOptions options,
// TickStream[] streams,
// String[] ids,
// long startTimestamp,
// long endTimestamp,
// Parameter... params) throws CompilationException
// {
// assertOpen();
// return server.executeQuery(qql, options, streams, ids, startTimestamp, endTimestamp, params);
// }
@Override
public InstrumentMessageSource executeQuery(
String qql,
SelectionOptions options,
TickStream [] streams,
CharSequence [] ids,
long startTimestamp,
long endTimestamp,
Parameter ... params)
throws CompilationException
{
assertOpen();
return server.executeQuery(qql, options, streams, ids, startTimestamp, endTimestamp, params);
}
@Override
public InstrumentMessageSource executeQuery (
String qql,
SelectionOptions options,
TickStream[] streams,
CharSequence[] ids,
long time,
Parameter... params
)
throws CompilationException
{
assertOpen ();
return server.executeQuery (qql, options, streams, ids, time, params);
}
@Override
public InstrumentMessageSource executeQuery (
String qql,
Parameter ... params
)
throws CompilationException
{
assertOpen ();
return (executeQuery (qql, null, null, params));
}
@Override
public InstrumentMessageSource executeQuery (
String qql,
SelectionOptions options,
Parameter ... params
)
throws CompilationException
{
assertOpen ();
return (executeQuery (qql, options, null, params));
}
@Override
public InstrumentMessageSource executeQuery (
String qql,
SelectionOptions options,
CharSequence[] ids,
Parameter ... params
)
throws CompilationException
{
assertOpen ();
return server.executeQuery (qql, options, ids, params);
}
@Override
public void compileQuery(String query, List outTokens) {
assertOpen();
server.compileQuery(query, outTokens);
}
@Override
public DXTickStream createStream (
String key,
String name,
String description,
int distributionFactor
)
{
assertWritable ();
return server.createStream (key, name, description, distributionFactor);
}
@Override
public DXTickStream createStream (String key, StreamOptions options) {
assertWritable ();
return server.createStream (key, options);
}
@Override
@Deprecated
public DXTickStream createAnonymousStream (StreamOptions options) {
assertWritable ();
return server.createAnonymousStream (options);
}
@Override
public void coolDown () {
throw USX ();
}
@Override
public TopicDB getTopicDB() {
assertOpen();
return topicDBWrapper;
}
@Override
public boolean isTopicDBSupported() {
return server.isTopicDBSupported();
}
@ParametersAreNonnullByDefault
private class TopicDBWrapper implements TopicDB {
@Override
public DirectChannel createTopic(String topicKey, RecordClassDescriptor[] types, @Nullable TopicSettings topicSettings) throws DuplicateTopicException {
assertWritable();
return server.getTopicDB().createTopic(topicKey, types, topicSettings);
}
@Nullable
@Override
public DirectChannel getTopic(String topicKey) {
assertOpen();
return server.getTopicDB().getTopic(topicKey);
}
@Override
public void deleteTopic(String topicKey) throws TopicNotFoundException {
assertWritable();
server.getTopicDB().deleteTopic(topicKey);
}
@Override
public List listTopics() {
assertOpen();
return server.getTopicDB().listTopics();
}
@Override
public RecordClassDescriptor[] getTypes(String topicKey) throws TopicNotFoundException {
assertOpen();
return server.getTopicDB().getTypes(topicKey);
}
@Override
public MessageChannel createPublisher(String topicKey, @Nullable PublisherPreferences channelPreferences, @Nullable IdleStrategy idleStrategy) throws TopicNotFoundException {
assertWritable();
return server.getTopicDB().createPublisher(topicKey, channelPreferences, idleStrategy);
}
@Override
public Disposable createConsumerWorker(String topicKey, @Nullable ConsumerPreferences preferences, @Nullable IdleStrategy idleStrategy, @Nullable ThreadFactory threadFactory, MessageProcessor processor) throws TopicNotFoundException {
assertOpen();
return server.getTopicDB().createConsumerWorker(topicKey, preferences, idleStrategy, threadFactory, processor);
}
@Override
public MessagePoller createPollingConsumer(String topicKey, @Nullable ConsumerPreferences preferences) throws TopicNotFoundException {
assertOpen();
return server.getTopicDB().createPollingConsumer(topicKey, preferences);
}
@Override
public MessageSource createConsumer(String topicKey, @Nullable ConsumerPreferences preferences, @Nullable IdleStrategy idleStrategy) throws TopicNotFoundException {
assertOpen();
return server.getTopicDB().createConsumer(topicKey, preferences, idleStrategy);
}
}
} © 2015 - 2024 Weber Informatics LLC | Privacy Policy