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/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.config;
import com.hazelcast.durableexecutor.DurableExecutorService;
import com.hazelcast.internal.cluster.Versions;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.IdentifiedDataSerializable;
import com.hazelcast.nio.serialization.impl.Versioned;
import java.io.IOException;
import static com.hazelcast.util.Preconditions.checkNotNegative;
import static com.hazelcast.util.Preconditions.checkPositive;
/**
* Contains the configuration for an {@link DurableExecutorService}.
*/
public class DurableExecutorConfig implements IdentifiedDataSerializable, Versioned {
/**
* The number of executor threads per Member for the Executor based on this configuration.
*/
public static final int DEFAULT_POOL_SIZE = 16;
/**
* Capacity of RingBuffer (per partition).
*/
public static final int DEFAULT_RING_BUFFER_CAPACITY = 100;
/**
* Durability of Executor.
*/
public static final int DEFAULT_DURABILITY = 1;
private String name = "default";
private int poolSize = DEFAULT_POOL_SIZE;
private int durability = DEFAULT_DURABILITY;
private int capacity = DEFAULT_RING_BUFFER_CAPACITY;
private String quorumName;
private transient DurableExecutorConfigReadOnly readOnly;
public DurableExecutorConfig() {
}
public DurableExecutorConfig(String name) {
this.name = name;
}
public DurableExecutorConfig(String name, int poolSize, int durability, int capacity) {
this(name, poolSize, durability, capacity, null);
}
public DurableExecutorConfig(String name, int poolSize, int durability, int capacity, String quorumName) {
this.name = name;
this.poolSize = poolSize;
this.durability = durability;
this.capacity = capacity;
this.quorumName = quorumName;
}
public DurableExecutorConfig(DurableExecutorConfig config) {
this(config.getName(), config.getPoolSize(), config.getDurability(), config.getCapacity(), config.getQuorumName());
}
/**
* Gets the name of the executor task.
*
* @return the name of the executor task
*/
public String getName() {
return name;
}
/**
* Sets the name of the executor task.
*
* @param name the name of the executor task
* @return this executor config instance
*/
public DurableExecutorConfig setName(String name) {
this.name = name;
return this;
}
/**
* Gets the number of executor threads per member for the executor.
*
* @return the number of executor threads per member for the executor
*/
public int getPoolSize() {
return poolSize;
}
/**
* Sets the number of executor threads per member for the executor.
*
* @param poolSize the number of executor threads per member for the executor
* @return this executor config instance
*/
public DurableExecutorConfig setPoolSize(int poolSize) {
this.poolSize = checkPositive(poolSize, "Pool size should be greater than 0");
return this;
}
/**
* Gets the durability of the executor
*
* @return the durability of the executor
*/
public int getDurability() {
return durability;
}
/**
* Sets the durability of the executor
*
* @param durability the durability of the executor
* @return this executor config instance
*/
public DurableExecutorConfig setDurability(int durability) {
this.durability = checkNotNegative(durability, "durability can't be smaller than 0");
return this;
}
/**
* Gets the ring buffer capacity of the executor task.
* This is a per partition parameter, so total capacity of the ringbuffers will be partitionCount * capacity
*
* @return Ring buffer capacity of the executor task
*/
public int getCapacity() {
return capacity;
}
/**
* Sets the ring buffer capacity of the executor task.
*
* @param capacity Ring Buffer capacity of the executor task
* @return this executor config instance
*/
public DurableExecutorConfig setCapacity(int capacity) {
this.capacity = checkPositive(capacity, "Capacity should be greater than 0");
return this;
}
/**
* Returns the quorum name for operations.
*
* @return the quorum name
*/
public String getQuorumName() {
return quorumName;
}
/**
* Sets the quorum name for operations.
*
* @param quorumName the quorum name
* @return the updated configuration
*/
public DurableExecutorConfig setQuorumName(String quorumName) {
this.quorumName = quorumName;
return this;
}
@Override
public String toString() {
return "ExecutorConfig{"
+ "name='" + name + '\''
+ ", poolSize=" + poolSize
+ ", capacity=" + capacity
+ ", quorumName=" + quorumName
+ '}';
}
DurableExecutorConfigReadOnly getAsReadOnly() {
if (readOnly == null) {
readOnly = new DurableExecutorConfigReadOnly(this);
}
return readOnly;
}
@Override
public int getFactoryId() {
return ConfigDataSerializerHook.F_ID;
}
@Override
public int getId() {
return ConfigDataSerializerHook.DURABLE_EXECUTOR_CONFIG;
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeUTF(name);
out.writeInt(poolSize);
out.writeInt(durability);
out.writeInt(capacity);
// RU_COMPAT_3_9
if (out.getVersion().isGreaterOrEqual(Versions.V3_10)) {
out.writeUTF(quorumName);
}
}
@Override
public void readData(ObjectDataInput in) throws IOException {
name = in.readUTF();
poolSize = in.readInt();
durability = in.readInt();
capacity = in.readInt();
// RU_COMPAT_3_9
if (in.getVersion().isGreaterOrEqual(Versions.V3_10)) {
quorumName = in.readUTF();
}
}
@Override
public final boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof DurableExecutorConfig)) {
return false;
}
DurableExecutorConfig that = (DurableExecutorConfig) o;
if (poolSize != that.poolSize) {
return false;
}
if (durability != that.durability) {
return false;
}
if (capacity != that.capacity) {
return false;
}
if (quorumName != null ? !quorumName.equals(that.quorumName) : that.quorumName != null) {
return false;
}
return name.equals(that.name);
}
@Override
public final int hashCode() {
int result = name.hashCode();
result = 31 * result + poolSize;
result = 31 * result + durability;
result = 31 * result + capacity;
result = 31 * result + (quorumName != null ? quorumName.hashCode() : 0);
return result;
}
// not private for testing
static class DurableExecutorConfigReadOnly extends DurableExecutorConfig {
DurableExecutorConfigReadOnly(DurableExecutorConfig config) {
super(config);
}
@Override
public DurableExecutorConfig setName(String name) {
throw new UnsupportedOperationException("This config is read-only durable executor: " + getName());
}
@Override
public DurableExecutorConfig setPoolSize(int poolSize) {
throw new UnsupportedOperationException("This config is read-only durable executor: " + getName());
}
@Override
public DurableExecutorConfig setCapacity(int capacity) {
throw new UnsupportedOperationException("This config is read-only durable executor: " + getName());
}
@Override
public DurableExecutorConfig setDurability(int durability) {
throw new UnsupportedOperationException("This config is read-only durable executor: " + getName());
}
@Override
public DurableExecutorConfig setQuorumName(String quorumName) {
throw new UnsupportedOperationException("This config is read-only durable executor: " + getName());
}
}
}
