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Apache Commons Object Pooling Library
/*
* 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 org.apache.commons.pool2.impl;
import org.apache.commons.pool2.BaseObject;
/**
* Provides the implementation for the common attributes shared by the
* sub-classes. New instances of this class will be created using the defaults
* defined by the public constants.
*
* This class is not thread-safe.
*
*
* @param Type of element pooled.
* @since 2.0
*/
public abstract class BaseObjectPoolConfig extends BaseObject implements Cloneable {
/**
* The default value for the {@code lifo} configuration attribute.
* @see GenericObjectPool#getLifo()
* @see GenericKeyedObjectPool#getLifo()
*/
public static final boolean DEFAULT_LIFO = true;
/**
* The default value for the {@code fairness} configuration attribute.
* @see GenericObjectPool#getFairness()
* @see GenericKeyedObjectPool#getFairness()
*/
public static final boolean DEFAULT_FAIRNESS = false;
/**
* The default value for the {@code maxWait} configuration attribute.
* @see GenericObjectPool#getMaxWaitMillis()
* @see GenericKeyedObjectPool#getMaxWaitMillis()
*/
public static final long DEFAULT_MAX_WAIT_MILLIS = -1L;
/**
* The default value for the {@code minEvictableIdleTimeMillis}
* configuration attribute.
* @see GenericObjectPool#getMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getMinEvictableIdleTimeMillis()
*/
public static final long DEFAULT_MIN_EVICTABLE_IDLE_TIME_MILLIS =
1000L * 60L * 30L;
/**
* The default value for the {@code softMinEvictableIdleTimeMillis}
* configuration attribute.
* @see GenericObjectPool#getSoftMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getSoftMinEvictableIdleTimeMillis()
*/
public static final long DEFAULT_SOFT_MIN_EVICTABLE_IDLE_TIME_MILLIS = -1;
/**
* The default value for {@code evictorShutdownTimeoutMillis} configuration
* attribute.
* @see GenericObjectPool#getEvictorShutdownTimeoutMillis()
* @see GenericKeyedObjectPool#getEvictorShutdownTimeoutMillis()
*/
public static final long DEFAULT_EVICTOR_SHUTDOWN_TIMEOUT_MILLIS =
10L * 1000L;
/**
* The default value for the {@code numTestsPerEvictionRun} configuration
* attribute.
* @see GenericObjectPool#getNumTestsPerEvictionRun()
* @see GenericKeyedObjectPool#getNumTestsPerEvictionRun()
*/
public static final int DEFAULT_NUM_TESTS_PER_EVICTION_RUN = 3;
/**
* The default value for the {@code testOnCreate} configuration attribute.
* @see GenericObjectPool#getTestOnCreate()
* @see GenericKeyedObjectPool#getTestOnCreate()
*
* @since 2.2
*/
public static final boolean DEFAULT_TEST_ON_CREATE = false;
/**
* The default value for the {@code testOnBorrow} configuration attribute.
* @see GenericObjectPool#getTestOnBorrow()
* @see GenericKeyedObjectPool#getTestOnBorrow()
*/
public static final boolean DEFAULT_TEST_ON_BORROW = false;
/**
* The default value for the {@code testOnReturn} configuration attribute.
* @see GenericObjectPool#getTestOnReturn()
* @see GenericKeyedObjectPool#getTestOnReturn()
*/
public static final boolean DEFAULT_TEST_ON_RETURN = false;
/**
* The default value for the {@code testWhileIdle} configuration attribute.
* @see GenericObjectPool#getTestWhileIdle()
* @see GenericKeyedObjectPool#getTestWhileIdle()
*/
public static final boolean DEFAULT_TEST_WHILE_IDLE = false;
/**
* The default value for the {@code timeBetweenEvictionRunsMillis}
* configuration attribute.
* @see GenericObjectPool#getTimeBetweenEvictionRunsMillis()
* @see GenericKeyedObjectPool#getTimeBetweenEvictionRunsMillis()
*/
public static final long DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS = -1L;
/**
* The default value for the {@code blockWhenExhausted} configuration
* attribute.
* @see GenericObjectPool#getBlockWhenExhausted()
* @see GenericKeyedObjectPool#getBlockWhenExhausted()
*/
public static final boolean DEFAULT_BLOCK_WHEN_EXHAUSTED = true;
/**
* The default value for enabling JMX for pools created with a configuration
* instance.
*/
public static final boolean DEFAULT_JMX_ENABLE = true;
/**
* The default value for the prefix used to name JMX enabled pools created
* with a configuration instance.
* @see GenericObjectPool#getJmxName()
* @see GenericKeyedObjectPool#getJmxName()
*/
public static final String DEFAULT_JMX_NAME_PREFIX = "pool";
/**
* The default value for the base name to use to name JMX enabled pools
* created with a configuration instance. The default is {@code null}
* which means the pool will provide the base name to use.
* @see GenericObjectPool#getJmxName()
* @see GenericKeyedObjectPool#getJmxName()
*/
public static final String DEFAULT_JMX_NAME_BASE = null;
/**
* The default value for the {@code evictionPolicyClassName} configuration
* attribute.
* @see GenericObjectPool#getEvictionPolicyClassName()
* @see GenericKeyedObjectPool#getEvictionPolicyClassName()
*/
public static final String DEFAULT_EVICTION_POLICY_CLASS_NAME = DefaultEvictionPolicy.class.getName();
private boolean lifo = DEFAULT_LIFO;
private boolean fairness = DEFAULT_FAIRNESS;
private long maxWaitMillis = DEFAULT_MAX_WAIT_MILLIS;
private long minEvictableIdleTimeMillis =
DEFAULT_MIN_EVICTABLE_IDLE_TIME_MILLIS;
private long evictorShutdownTimeoutMillis =
DEFAULT_EVICTOR_SHUTDOWN_TIMEOUT_MILLIS;
private long softMinEvictableIdleTimeMillis =
DEFAULT_SOFT_MIN_EVICTABLE_IDLE_TIME_MILLIS;
private int numTestsPerEvictionRun =
DEFAULT_NUM_TESTS_PER_EVICTION_RUN;
private EvictionPolicy evictionPolicy = null; // Only 2.6.0 applications set this
private String evictionPolicyClassName = DEFAULT_EVICTION_POLICY_CLASS_NAME;
private boolean testOnCreate = DEFAULT_TEST_ON_CREATE;
private boolean testOnBorrow = DEFAULT_TEST_ON_BORROW;
private boolean testOnReturn = DEFAULT_TEST_ON_RETURN;
private boolean testWhileIdle = DEFAULT_TEST_WHILE_IDLE;
private long timeBetweenEvictionRunsMillis =
DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS;
private boolean blockWhenExhausted = DEFAULT_BLOCK_WHEN_EXHAUSTED;
private boolean jmxEnabled = DEFAULT_JMX_ENABLE;
// TODO Consider changing this to a single property for 3.x
private String jmxNamePrefix = DEFAULT_JMX_NAME_PREFIX;
private String jmxNameBase = DEFAULT_JMX_NAME_BASE;
/**
* Get the value for the {@code lifo} configuration attribute for pools
* created with this configuration instance.
*
* @return The current setting of {@code lifo} for this configuration
* instance
*
* @see GenericObjectPool#getLifo()
* @see GenericKeyedObjectPool#getLifo()
*/
public boolean getLifo() {
return lifo;
}
/**
* Get the value for the {@code fairness} configuration attribute for pools
* created with this configuration instance.
*
* @return The current setting of {@code fairness} for this configuration
* instance
*
* @see GenericObjectPool#getFairness()
* @see GenericKeyedObjectPool#getFairness()
*/
public boolean getFairness() {
return fairness;
}
/**
* Set the value for the {@code lifo} configuration attribute for pools
* created with this configuration instance.
*
* @param lifo The new setting of {@code lifo}
* for this configuration instance
*
* @see GenericObjectPool#getLifo()
* @see GenericKeyedObjectPool#getLifo()
*/
public void setLifo(final boolean lifo) {
this.lifo = lifo;
}
/**
* Set the value for the {@code fairness} configuration attribute for pools
* created with this configuration instance.
*
* @param fairness The new setting of {@code fairness}
* for this configuration instance
*
* @see GenericObjectPool#getFairness()
* @see GenericKeyedObjectPool#getFairness()
*/
public void setFairness(final boolean fairness) {
this.fairness = fairness;
}
/**
* Get the value for the {@code maxWait} configuration attribute for pools
* created with this configuration instance.
*
* @return The current setting of {@code maxWait} for this
* configuration instance
*
* @see GenericObjectPool#getMaxWaitMillis()
* @see GenericKeyedObjectPool#getMaxWaitMillis()
*/
public long getMaxWaitMillis() {
return maxWaitMillis;
}
/**
* Set the value for the {@code maxWait} configuration attribute for pools
* created with this configuration instance.
*
* @param maxWaitMillis The new setting of {@code maxWaitMillis}
* for this configuration instance
*
* @see GenericObjectPool#getMaxWaitMillis()
* @see GenericKeyedObjectPool#getMaxWaitMillis()
*/
public void setMaxWaitMillis(final long maxWaitMillis) {
this.maxWaitMillis = maxWaitMillis;
}
/**
* Get the value for the {@code minEvictableIdleTimeMillis} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code minEvictableIdleTimeMillis} for
* this configuration instance
*
* @see GenericObjectPool#getMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getMinEvictableIdleTimeMillis()
*/
public long getMinEvictableIdleTimeMillis() {
return minEvictableIdleTimeMillis;
}
/**
* Set the value for the {@code minEvictableIdleTimeMillis} configuration
* attribute for pools created with this configuration instance.
*
* @param minEvictableIdleTimeMillis The new setting of
* {@code minEvictableIdleTimeMillis} for this configuration instance
*
* @see GenericObjectPool#getMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getMinEvictableIdleTimeMillis()
*/
public void setMinEvictableIdleTimeMillis(final long minEvictableIdleTimeMillis) {
this.minEvictableIdleTimeMillis = minEvictableIdleTimeMillis;
}
/**
* Get the value for the {@code softMinEvictableIdleTimeMillis}
* configuration attribute for pools created with this configuration
* instance.
*
* @return The current setting of {@code softMinEvictableIdleTimeMillis}
* for this configuration instance
*
* @see GenericObjectPool#getSoftMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getSoftMinEvictableIdleTimeMillis()
*/
public long getSoftMinEvictableIdleTimeMillis() {
return softMinEvictableIdleTimeMillis;
}
/**
* Set the value for the {@code softMinEvictableIdleTimeMillis}
* configuration attribute for pools created with this configuration
* instance.
*
* @param softMinEvictableIdleTimeMillis The new setting of
* {@code softMinEvictableIdleTimeMillis} for this configuration
* instance
*
* @see GenericObjectPool#getSoftMinEvictableIdleTimeMillis()
* @see GenericKeyedObjectPool#getSoftMinEvictableIdleTimeMillis()
*/
public void setSoftMinEvictableIdleTimeMillis(
final long softMinEvictableIdleTimeMillis) {
this.softMinEvictableIdleTimeMillis = softMinEvictableIdleTimeMillis;
}
/**
* Get the value for the {@code numTestsPerEvictionRun} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code numTestsPerEvictionRun} for this
* configuration instance
*
* @see GenericObjectPool#getNumTestsPerEvictionRun()
* @see GenericKeyedObjectPool#getNumTestsPerEvictionRun()
*/
public int getNumTestsPerEvictionRun() {
return numTestsPerEvictionRun;
}
/**
* Set the value for the {@code numTestsPerEvictionRun} configuration
* attribute for pools created with this configuration instance.
*
* @param numTestsPerEvictionRun The new setting of
* {@code numTestsPerEvictionRun} for this configuration instance
*
* @see GenericObjectPool#getNumTestsPerEvictionRun()
* @see GenericKeyedObjectPool#getNumTestsPerEvictionRun()
*/
public void setNumTestsPerEvictionRun(final int numTestsPerEvictionRun) {
this.numTestsPerEvictionRun = numTestsPerEvictionRun;
}
/**
* Get the value for the {@code evictorShutdownTimeoutMillis} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code evictorShutdownTimeoutMillis} for
* this configuration instance
*
* @see GenericObjectPool#getEvictorShutdownTimeoutMillis()
* @see GenericKeyedObjectPool#getEvictorShutdownTimeoutMillis()
*/
public long getEvictorShutdownTimeoutMillis() {
return evictorShutdownTimeoutMillis;
}
/**
* Set the value for the {@code evictorShutdownTimeoutMillis} configuration
* attribute for pools created with this configuration instance.
*
* @param evictorShutdownTimeoutMillis The new setting of
* {@code evictorShutdownTimeoutMillis} for this configuration
* instance
*
* @see GenericObjectPool#getEvictorShutdownTimeoutMillis()
* @see GenericKeyedObjectPool#getEvictorShutdownTimeoutMillis()
*/
public void setEvictorShutdownTimeoutMillis(
final long evictorShutdownTimeoutMillis) {
this.evictorShutdownTimeoutMillis = evictorShutdownTimeoutMillis;
}
/**
* Get the value for the {@code testOnCreate} configuration attribute for
* pools created with this configuration instance.
*
* @return The current setting of {@code testOnCreate} for this
* configuration instance
*
* @see GenericObjectPool#getTestOnCreate()
* @see GenericKeyedObjectPool#getTestOnCreate()
*
* @since 2.2
*/
public boolean getTestOnCreate() {
return testOnCreate;
}
/**
* Set the value for the {@code testOnCreate} configuration attribute for
* pools created with this configuration instance.
*
* @param testOnCreate The new setting of {@code testOnCreate}
* for this configuration instance
*
* @see GenericObjectPool#getTestOnCreate()
* @see GenericKeyedObjectPool#getTestOnCreate()
*
* @since 2.2
*/
public void setTestOnCreate(final boolean testOnCreate) {
this.testOnCreate = testOnCreate;
}
/**
* Get the value for the {@code testOnBorrow} configuration attribute for
* pools created with this configuration instance.
*
* @return The current setting of {@code testOnBorrow} for this
* configuration instance
*
* @see GenericObjectPool#getTestOnBorrow()
* @see GenericKeyedObjectPool#getTestOnBorrow()
*/
public boolean getTestOnBorrow() {
return testOnBorrow;
}
/**
* Set the value for the {@code testOnBorrow} configuration attribute for
* pools created with this configuration instance.
*
* @param testOnBorrow The new setting of {@code testOnBorrow}
* for this configuration instance
*
* @see GenericObjectPool#getTestOnBorrow()
* @see GenericKeyedObjectPool#getTestOnBorrow()
*/
public void setTestOnBorrow(final boolean testOnBorrow) {
this.testOnBorrow = testOnBorrow;
}
/**
* Get the value for the {@code testOnReturn} configuration attribute for
* pools created with this configuration instance.
*
* @return The current setting of {@code testOnReturn} for this
* configuration instance
*
* @see GenericObjectPool#getTestOnReturn()
* @see GenericKeyedObjectPool#getTestOnReturn()
*/
public boolean getTestOnReturn() {
return testOnReturn;
}
/**
* Set the value for the {@code testOnReturn} configuration attribute for
* pools created with this configuration instance.
*
* @param testOnReturn The new setting of {@code testOnReturn}
* for this configuration instance
*
* @see GenericObjectPool#getTestOnReturn()
* @see GenericKeyedObjectPool#getTestOnReturn()
*/
public void setTestOnReturn(final boolean testOnReturn) {
this.testOnReturn = testOnReturn;
}
/**
* Get the value for the {@code testWhileIdle} configuration attribute for
* pools created with this configuration instance.
*
* @return The current setting of {@code testWhileIdle} for this
* configuration instance
*
* @see GenericObjectPool#getTestWhileIdle()
* @see GenericKeyedObjectPool#getTestWhileIdle()
*/
public boolean getTestWhileIdle() {
return testWhileIdle;
}
/**
* Set the value for the {@code testWhileIdle} configuration attribute for
* pools created with this configuration instance.
*
* @param testWhileIdle The new setting of {@code testWhileIdle}
* for this configuration instance
*
* @see GenericObjectPool#getTestWhileIdle()
* @see GenericKeyedObjectPool#getTestWhileIdle()
*/
public void setTestWhileIdle(final boolean testWhileIdle) {
this.testWhileIdle = testWhileIdle;
}
/**
* Get the value for the {@code timeBetweenEvictionRunsMillis} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code timeBetweenEvictionRunsMillis} for
* this configuration instance
*
* @see GenericObjectPool#getTimeBetweenEvictionRunsMillis()
* @see GenericKeyedObjectPool#getTimeBetweenEvictionRunsMillis()
*/
public long getTimeBetweenEvictionRunsMillis() {
return timeBetweenEvictionRunsMillis;
}
/**
* Set the value for the {@code timeBetweenEvictionRunsMillis} configuration
* attribute for pools created with this configuration instance.
*
* @param timeBetweenEvictionRunsMillis The new setting of
* {@code timeBetweenEvictionRunsMillis} for this configuration
* instance
*
* @see GenericObjectPool#getTimeBetweenEvictionRunsMillis()
* @see GenericKeyedObjectPool#getTimeBetweenEvictionRunsMillis()
*/
public void setTimeBetweenEvictionRunsMillis(
final long timeBetweenEvictionRunsMillis) {
this.timeBetweenEvictionRunsMillis = timeBetweenEvictionRunsMillis;
}
/**
* Get the value for the {@code evictionPolicyClass} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code evictionPolicyClass} for this
* configuration instance
*
* @see GenericObjectPool#getEvictionPolicy()
* @see GenericKeyedObjectPool#getEvictionPolicy()
* @since 2.6.0
*/
public EvictionPolicy getEvictionPolicy() {
return evictionPolicy;
}
/**
* Get the value for the {@code evictionPolicyClassName} configuration
* attribute for pools created with this configuration instance.
*
* @return The current setting of {@code evictionPolicyClassName} for this
* configuration instance
*
* @see GenericObjectPool#getEvictionPolicyClassName()
* @see GenericKeyedObjectPool#getEvictionPolicyClassName()
*/
public String getEvictionPolicyClassName() {
return evictionPolicyClassName;
}
/**
* Set the value for the {@code evictionPolicyClass} configuration
* attribute for pools created with this configuration instance.
*
* @param evictionPolicy The new setting of
* {@code evictionPolicyClass} for this configuration instance
*
* @see GenericObjectPool#getEvictionPolicy()
* @see GenericKeyedObjectPool#getEvictionPolicy()
* @since 2.6.0
*/
public void setEvictionPolicy(final EvictionPolicy evictionPolicy) {
this.evictionPolicy = evictionPolicy;
}
/**
* Set the value for the {@code evictionPolicyClassName} configuration
* attribute for pools created with this configuration instance.
*
* @param evictionPolicyClassName The new setting of
* {@code evictionPolicyClassName} for this configuration instance
*
* @see GenericObjectPool#getEvictionPolicyClassName()
* @see GenericKeyedObjectPool#getEvictionPolicyClassName()
*/
public void setEvictionPolicyClassName(final String evictionPolicyClassName) {
this.evictionPolicyClassName = evictionPolicyClassName;
}
/**
* Get the value for the {@code blockWhenExhausted} configuration attribute
* for pools created with this configuration instance.
*
* @return The current setting of {@code blockWhenExhausted} for this
* configuration instance
*
* @see GenericObjectPool#getBlockWhenExhausted()
* @see GenericKeyedObjectPool#getBlockWhenExhausted()
*/
public boolean getBlockWhenExhausted() {
return blockWhenExhausted;
}
/**
* Set the value for the {@code blockWhenExhausted} configuration attribute
* for pools created with this configuration instance.
*
* @param blockWhenExhausted The new setting of {@code blockWhenExhausted}
* for this configuration instance
*
* @see GenericObjectPool#getBlockWhenExhausted()
* @see GenericKeyedObjectPool#getBlockWhenExhausted()
*/
public void setBlockWhenExhausted(final boolean blockWhenExhausted) {
this.blockWhenExhausted = blockWhenExhausted;
}
/**
* Gets the value of the flag that determines if JMX will be enabled for
* pools created with this configuration instance.
*
* @return The current setting of {@code jmxEnabled} for this configuration
* instance
*/
public boolean getJmxEnabled() {
return jmxEnabled;
}
/**
* Sets the value of the flag that determines if JMX will be enabled for
* pools created with this configuration instance.
*
* @param jmxEnabled The new setting of {@code jmxEnabled}
* for this configuration instance
*/
public void setJmxEnabled(final boolean jmxEnabled) {
this.jmxEnabled = jmxEnabled;
}
/**
* Gets the value of the JMX name base that will be used as part of the
* name assigned to JMX enabled pools created with this configuration
* instance. A value of {@code null} means that the pool will define
* the JMX name base.
*
* @return The current setting of {@code jmxNameBase} for this
* configuration instance
*/
public String getJmxNameBase() {
return jmxNameBase;
}
/**
* Sets the value of the JMX name base that will be used as part of the
* name assigned to JMX enabled pools created with this configuration
* instance. A value of {@code null} means that the pool will define
* the JMX name base.
*
* @param jmxNameBase The new setting of {@code jmxNameBase}
* for this configuration instance
*/
public void setJmxNameBase(final String jmxNameBase) {
this.jmxNameBase = jmxNameBase;
}
/**
* Gets the value of the JMX name prefix that will be used as part of the
* name assigned to JMX enabled pools created with this configuration
* instance.
*
* @return The current setting of {@code jmxNamePrefix} for this
* configuration instance
*/
public String getJmxNamePrefix() {
return jmxNamePrefix;
}
/**
* Sets the value of the JMX name prefix that will be used as part of the
* name assigned to JMX enabled pools created with this configuration
* instance.
*
* @param jmxNamePrefix The new setting of {@code jmxNamePrefix}
* for this configuration instance
*/
public void setJmxNamePrefix(final String jmxNamePrefix) {
this.jmxNamePrefix = jmxNamePrefix;
}
@Override
protected void toStringAppendFields(final StringBuilder builder) {
builder.append("lifo=");
builder.append(lifo);
builder.append(", fairness=");
builder.append(fairness);
builder.append(", maxWaitMillis=");
builder.append(maxWaitMillis);
builder.append(", minEvictableIdleTimeMillis=");
builder.append(minEvictableIdleTimeMillis);
builder.append(", softMinEvictableIdleTimeMillis=");
builder.append(softMinEvictableIdleTimeMillis);
builder.append(", numTestsPerEvictionRun=");
builder.append(numTestsPerEvictionRun);
builder.append(", evictionPolicyClassName=");
builder.append(evictionPolicyClassName);
builder.append(", testOnCreate=");
builder.append(testOnCreate);
builder.append(", testOnBorrow=");
builder.append(testOnBorrow);
builder.append(", testOnReturn=");
builder.append(testOnReturn);
builder.append(", testWhileIdle=");
builder.append(testWhileIdle);
builder.append(", timeBetweenEvictionRunsMillis=");
builder.append(timeBetweenEvictionRunsMillis);
builder.append(", blockWhenExhausted=");
builder.append(blockWhenExhausted);
builder.append(", jmxEnabled=");
builder.append(jmxEnabled);
builder.append(", jmxNamePrefix=");
builder.append(jmxNamePrefix);
builder.append(", jmxNameBase=");
builder.append(jmxNameBase);
}
}