io.ray.streaming.state.backend.AbstractKeyStateBackend Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 io.ray.streaming.state.backend;
import io.ray.streaming.state.StateStoreManager;
import io.ray.streaming.state.keystate.desc.AbstractStateDescriptor;
import io.ray.streaming.state.keystate.desc.AbstractStateDescriptor.StateType;
import io.ray.streaming.state.keystate.state.proxy.ListStateStoreManagerProxy;
import io.ray.streaming.state.keystate.state.proxy.MapStateStoreManagerProxy;
import io.ray.streaming.state.keystate.state.proxy.ValueStateStoreManagerProxy;
import io.ray.streaming.state.store.KeyMapStore;
import io.ray.streaming.state.store.KeyValueStore;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Transaction support primitive operations like finish, commit, ackcommit and rollback.
*
* State value modification is not thread safe! By default, every processing thread has its own
* space to handle state.
*/
public abstract class AbstractKeyStateBackend implements StateStoreManager {
private static final Logger LOG = LoggerFactory.getLogger(AbstractKeyStateBackend.class);
protected long currentCheckpointId;
protected Object currentKey;
protected int keyGroupIndex = -1;
protected Map valueManagerProxyHashMap = new HashMap<>();
protected Map listManagerProxyHashMap = new HashMap<>();
protected Map mapManagerProxyHashMap = new HashMap<>();
protected Set descNamespace;
/**
* tablename, KeyValueStore key, checkpointId, content
*/
protected Map>> backStorageCache;
private AbstractStateBackend backend;
public AbstractKeyStateBackend(AbstractStateBackend backend) {
this.backStorageCache = new HashMap<>();
this.backend = backend;
this.descNamespace = new HashSet<>();
}
public void put(AbstractStateDescriptor descriptor, K key, T value) {
String desc = descriptor.getIdentify();
if (descriptor.getStateType() == StateType.VALUE) {
if (this.valueManagerProxyHashMap.containsKey(desc)) {
valueManagerProxyHashMap.get(desc).put((String) key, value);
}
} else if (descriptor.getStateType() == StateType.LIST) {
if (this.listManagerProxyHashMap.containsKey(desc)) {
listManagerProxyHashMap.get(desc).put((String) key, value);
}
} else if (descriptor.getStateType() == StateType.MAP) {
if (this.mapManagerProxyHashMap.containsKey(desc)) {
mapManagerProxyHashMap.get(desc).put((String) key, value);
}
}
}
public T get(AbstractStateDescriptor descriptor, K key) {
String desc = descriptor.getIdentify();
if (descriptor.getStateType() == StateType.VALUE) {
if (this.valueManagerProxyHashMap.containsKey(desc)) {
return (T) valueManagerProxyHashMap.get(desc).get((String) key);
}
} else if (descriptor.getStateType() == StateType.LIST) {
if (this.listManagerProxyHashMap.containsKey(desc)) {
return (T) listManagerProxyHashMap.get(desc).get((String) key);
}
} else if (descriptor.getStateType() == StateType.MAP) {
if (this.mapManagerProxyHashMap.containsKey(desc)) {
return (T) mapManagerProxyHashMap.get(desc).get((String) key);
}
}
return null;
}
@Override
public void finish(long checkpointId) {
for (Entry entry : valueManagerProxyHashMap.entrySet()) {
entry.getValue().finish(checkpointId);
}
for (Entry entry : listManagerProxyHashMap.entrySet()) {
entry.getValue().finish(checkpointId);
}
for (Entry entry : mapManagerProxyHashMap.entrySet()) {
entry.getValue().finish(checkpointId);
}
}
@Override
public void commit(long checkpointId) {
for (Entry entry : valueManagerProxyHashMap.entrySet()) {
entry.getValue().commit(checkpointId);
}
for (Entry entry : listManagerProxyHashMap.entrySet()) {
entry.getValue().commit(checkpointId);
}
for (Entry entry : mapManagerProxyHashMap.entrySet()) {
entry.getValue().commit(checkpointId);
}
}
@Override
public void ackCommit(long checkpointId, long timeStamp) {
for (Entry entry : valueManagerProxyHashMap.entrySet()) {
entry.getValue().ackCommit(checkpointId, timeStamp);
}
for (Entry entry : listManagerProxyHashMap.entrySet()) {
entry.getValue().ackCommit(checkpointId, timeStamp);
}
for (Entry entry : mapManagerProxyHashMap.entrySet()) {
entry.getValue().ackCommit(checkpointId, timeStamp);
}
}
@Override
public void rollBack(long checkpointId) {
for (Entry entry : valueManagerProxyHashMap.entrySet()) {
LOG.warn("backend rollback:{},{}", entry.getKey(), checkpointId);
entry.getValue().rollBack(checkpointId);
}
for (Entry entry : listManagerProxyHashMap.entrySet()) {
LOG.warn("backend rollback:{},{}", entry.getKey(), checkpointId);
entry.getValue().rollBack(checkpointId);
}
for (Entry entry : mapManagerProxyHashMap.entrySet()) {
LOG.warn("backend rollback:{},{}", entry.getKey(), checkpointId);
entry.getValue().rollBack(checkpointId);
}
}
public KeyValueStore> getBackStorage(String tableName) {
if (this.backStorageCache.containsKey(tableName)) {
return this.backStorageCache.get(tableName);
} else {
KeyMapStore ikvStore = this.backend.getKeyMapStore(tableName);
this.backStorageCache.put(tableName, ikvStore);
return ikvStore;
}
}
public KeyValueStore> getBackStorage(
AbstractStateDescriptor stateDescriptor) {
String tableName = this.backend.getTableName(stateDescriptor);
return getBackStorage(tableName);
}
public StateStrategy getStateStrategy() {
return this.backend.getStateStrategy();
}
public BackendType getBackendType() {
return this.backend.getBackendType();
}
public Object getCurrentKey() {
return this.currentKey;
}
public abstract void setCurrentKey(Object currentKey);
public long getCheckpointId() {
return this.currentCheckpointId;
}
public void setCheckpointId(long checkpointId) {
this.currentCheckpointId = checkpointId;
}
public void setContext(long checkpointId, Object currentKey) {
setCheckpointId(checkpointId);
setCurrentKey(currentKey);
}
public AbstractStateBackend getBackend() {
return backend;
}
public int getKeyGroupIndex() {
return this.keyGroupIndex;
}
public void setKeyGroupIndex(int keyGroupIndex) {
this.keyGroupIndex = keyGroupIndex;
}
}