com.hazelcast.config.MapStoreConfig Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2015, 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 java.util.Properties;
import static com.hazelcast.util.Preconditions.isNotNull;
/**
* Contains the configuration for a Map Store.
*/
public class MapStoreConfig {
/**
* Default delay seconds for writing
*/
public static final int DEFAULT_WRITE_DELAY_SECONDS = 0;
/**
* Default batch size for writing
*/
public static final int DEFAULT_WRITE_BATCH_SIZE = 1;
/**
* Default write coalescing behavior
*/
public static final boolean DEFAULT_WRITE_COALESCING = true;
private boolean enabled = true;
private boolean writeCoalescing = DEFAULT_WRITE_COALESCING;
private String className;
private String factoryClassName;
private int writeDelaySeconds = DEFAULT_WRITE_DELAY_SECONDS;
private int writeBatchSize = DEFAULT_WRITE_BATCH_SIZE;
private Object implementation;
private Object factoryImplementation;
private Properties properties = new Properties();
private MapStoreConfigReadOnly readOnly;
private InitialLoadMode initialLoadMode = InitialLoadMode.LAZY;
/**
* Initial load module
*/
public enum InitialLoadMode {
/**
* Each partition is loaded when it is first touched.
*/
LAZY,
/**
* getMap() method does not return till the map is completely loaded.
*/
EAGER
}
public MapStoreConfig() {
}
public MapStoreConfig(MapStoreConfig config) {
enabled = config.isEnabled();
className = config.getClassName();
implementation = config.getImplementation();
factoryClassName = config.getFactoryClassName();
factoryImplementation = config.getFactoryImplementation();
writeDelaySeconds = config.getWriteDelaySeconds();
writeBatchSize = config.getWriteBatchSize();
initialLoadMode = config.getInitialLoadMode();
writeCoalescing = config.isWriteCoalescing();
properties.putAll(config.getProperties());
}
public MapStoreConfigReadOnly getAsReadOnly() {
if (readOnly == null) {
readOnly = new MapStoreConfigReadOnly(this);
}
return readOnly;
}
/**
* Returns the name of the MapStore implementation class
*
* @return the name of the MapStore implementation class
*/
public String getClassName() {
return className;
}
/**
* Sets the name for the MapStore implementation class
*
* @param className the name to set for the MapStore implementation class
*/
public MapStoreConfig setClassName(String className) {
this.className = className;
return this;
}
/**
* Returns the name of the MapStoreFactory implementation class
*
* @return the name of the MapStoreFactory implementation class
*/
public String getFactoryClassName() {
return factoryClassName;
}
/**
* Sets the name for the MapStoreFactory implementation class
*
* @param factoryClassName the name to set for the MapStoreFactory implementation class
*/
public MapStoreConfig setFactoryClassName(String factoryClassName) {
this.factoryClassName = factoryClassName;
return this;
}
/**
* Returns the number of seconds to delay the store writes.
*
* @return the number of seconds to delay the store writes.
*/
public int getWriteDelaySeconds() {
return writeDelaySeconds;
}
/**
* Sets the number of seconds to delay before writing (storing) the dirty records
*
* Default value is {@value #DEFAULT_WRITE_DELAY_SECONDS}.
*
* @param writeDelaySeconds the number of seconds to delay before writing the dirty records
*/
public MapStoreConfig setWriteDelaySeconds(int writeDelaySeconds) {
this.writeDelaySeconds = writeDelaySeconds;
return this;
}
/**
* Returns the number of operations to be included in each batch processing round.
*
* @return write batch size: the number of operations to be included in each batch processing round.
*/
public int getWriteBatchSize() {
return writeBatchSize;
}
/**
* Sets the number of operations to be included in each batch processing round.
*
* Default value is {@value #DEFAULT_WRITE_BATCH_SIZE}.
*
* @param writeBatchSize the number of operations to be included in each batch processing round.
*/
public MapStoreConfig setWriteBatchSize(int writeBatchSize) {
if (writeBatchSize < 1) {
throw new IllegalArgumentException("Write batch size should be at least 1");
}
this.writeBatchSize = writeBatchSize;
return this;
}
/**
* Returns if this configuration is enabled
*
* @return true if this configuration is enabled, false otherwise
*/
public boolean isEnabled() {
return enabled;
}
/**
* Enables and disables this configuration
*
* @param enabled true to enables this configuration, false to disable
*/
public MapStoreConfig setEnabled(boolean enabled) {
this.enabled = enabled;
return this;
}
/**
* Sets the map store implementation object
*
* @param implementation the map store implementation object to set
* @return this MapStoreConfig instance
*/
public MapStoreConfig setImplementation(Object implementation) {
this.implementation = implementation;
return this;
}
/**
* Returns the map store implementation object.
*
* @return the map store implementation object
*/
public Object getImplementation() {
return implementation;
}
/**
* Sets the map store factory implementation object.
*
* @param factoryImplementation the factory implementation object
* @return this MapStoreConfig instance
*/
public MapStoreConfig setFactoryImplementation(Object factoryImplementation) {
this.factoryImplementation = factoryImplementation;
return this;
}
/**
* Returns the map store factory implementation object.
*
* @return the map store factory implementation object
*/
public Object getFactoryImplementation() {
return factoryImplementation;
}
public MapStoreConfig setProperty(String name, String value) {
properties.put(name, value);
return this;
}
/**
* Returns the given property
*
* @return the given property
*/
public String getProperty(String name) {
return properties.getProperty(name);
}
/**
* Returns all the properties
*
* @return all the properties
*/
public Properties getProperties() {
return properties;
}
/**
* Sets the properties
*
* @param properties the properties to be set
* @return this MapStoreConfig
*/
public MapStoreConfig setProperties(Properties properties) {
this.properties = isNotNull(properties, "properties");
return this;
}
/**
* Returns the initial load mode
*
* @return the initial load mode object
*/
public InitialLoadMode getInitialLoadMode() {
return initialLoadMode;
}
/**
* Sets the initial load mode
*
* LAZY: Default load mode where load is async
* EAGER: load mode where load is blocked till all partitions are loaded
*
* @param initialLoadMode the initial load mode object
*/
public MapStoreConfig setInitialLoadMode(InitialLoadMode initialLoadMode) {
this.initialLoadMode = initialLoadMode;
return this;
}
/**
* Returns {@code true} if write-coalescing is enabled.
*
* @return {@code true} if coalescing enabled, {@code false} otherwise.
* @see #setWriteCoalescing(boolean)
*/
public boolean isWriteCoalescing() {
return writeCoalescing;
}
/**
* Setting {@link #writeCoalescing} is meaningful if you are using write-behind {@link com.hazelcast.core.MapStore}.
*
* When {@link #writeCoalescing} is {@code true}, only the latest store operation on a key in the {@link #writeDelaySeconds}
* time-window will be reflected to {@link com.hazelcast.core.MapStore}.
*
* Default value is {@value #DEFAULT_WRITE_COALESCING}.
*
* @param writeCoalescing {@code true} to enable write-coalescing, {@code false} otherwise.
* @see com.hazelcast.instance.GroupProperties.GroupProperty#MAP_WRITE_BEHIND_QUEUE_CAPACITY
*/
public void setWriteCoalescing(boolean writeCoalescing) {
this.writeCoalescing = writeCoalescing;
}
@Override
public String toString() {
return "MapStoreConfig{"
+ "enabled=" + enabled
+ ", className='" + className + '\''
+ ", factoryClassName='" + factoryClassName + '\''
+ ", writeDelaySeconds=" + writeDelaySeconds
+ ", writeBatchSize=" + writeBatchSize
+ ", implementation=" + implementation
+ ", factoryImplementation=" + factoryImplementation
+ ", properties=" + properties
+ ", readOnly=" + readOnly
+ ", initialLoadMode=" + initialLoadMode
+ ", writeCoalescing=" + writeCoalescing
+ '}';
}
}