com.zaxxer.hikari.HikariConfig Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of HikariCP Show documentation
Show all versions of HikariCP Show documentation
Ultimate JDBC Connection Pool
/*
* Copyright (C) 2013, 2014 Brett Wooldridge
*
* 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.zaxxer.hikari;
import static com.zaxxer.hikari.util.UtilityElf.getNullIfEmpty;
import static java.util.concurrent.TimeUnit.MINUTES;
import static java.util.concurrent.TimeUnit.SECONDS;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.Properties;
import java.util.Set;
import java.util.TreeSet;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.health.HealthCheckRegistry;
import com.zaxxer.hikari.metrics.MetricsTrackerFactory;
import com.zaxxer.hikari.util.PropertyElf;
@SuppressWarnings({"SameParameterValue", "unused"})
public class HikariConfig implements HikariConfigMXBean
{
private static final Logger LOGGER = LoggerFactory.getLogger(HikariConfig.class);
private static final long CONNECTION_TIMEOUT = SECONDS.toMillis(30);
private static final long VALIDATION_TIMEOUT = SECONDS.toMillis(5);
private static final long IDLE_TIMEOUT = MINUTES.toMillis(10);
private static final long MAX_LIFETIME = MINUTES.toMillis(30);
private static final int DEFAULT_POOL_SIZE = 10;
private static boolean unitTest = false;
// Properties changeable at runtime through the MBean
//
private volatile long connectionTimeout;
private volatile long validationTimeout;
private volatile long idleTimeout;
private volatile long leakDetectionThreshold;
private volatile long maxLifetime;
private volatile int maxPoolSize;
private volatile int minIdle;
// Properties NOT changeable at runtime
//
private long initializationFailTimeout;
private String catalog;
private String connectionInitSql;
private String connectionTestQuery;
private String dataSourceClassName;
private String dataSourceJndiName;
private String driverClassName;
private String jdbcUrl;
private String password;
private String poolName;
private String transactionIsolationName;
private String username;
private boolean isAutoCommit;
private boolean isReadOnly;
private boolean isIsolateInternalQueries;
private boolean isRegisterMbeans;
private boolean isAllowPoolSuspension;
private DataSource dataSource;
private Properties dataSourceProperties;
private ThreadFactory threadFactory;
private ScheduledExecutorService scheduledExecutor;
private MetricsTrackerFactory metricsTrackerFactory;
private Object metricRegistry;
private Object healthCheckRegistry;
private Properties healthCheckProperties;
/**
* Default constructor
*/
public HikariConfig()
{
dataSourceProperties = new Properties();
healthCheckProperties = new Properties();
minIdle = -1;
maxPoolSize = -1;
maxLifetime = MAX_LIFETIME;
connectionTimeout = CONNECTION_TIMEOUT;
validationTimeout = VALIDATION_TIMEOUT;
idleTimeout = IDLE_TIMEOUT;
initializationFailTimeout = 1;
isAutoCommit = true;
String systemProp = System.getProperty("hikaricp.configurationFile");
if (systemProp != null) {
loadProperties(systemProp);
}
}
/**
* Construct a HikariConfig from the specified properties object.
*
* @param properties the name of the property file
*/
public HikariConfig(Properties properties)
{
this();
PropertyElf.setTargetFromProperties(this, properties);
}
/**
* Construct a HikariConfig from the specified property file name. propertyFileName
* will first be treated as a path in the file-system, and if that fails the
* Class.getResourceAsStream(propertyFileName) will be tried.
*
* @param propertyFileName the name of the property file
*/
public HikariConfig(String propertyFileName)
{
this();
loadProperties(propertyFileName);
}
/**
* Get the default catalog name to be set on connections.
*
* @return the default catalog name
*/
public String getCatalog()
{
return catalog;
}
/**
* Set the default catalog name to be set on connections.
*
* @param catalog the catalog name, or null
*/
public void setCatalog(String catalog)
{
this.catalog = catalog;
}
/**
* Get the SQL query to be executed to test the validity of connections.
*
* @return the SQL query string, or null
*/
public String getConnectionTestQuery()
{
return connectionTestQuery;
}
/**
* Set the SQL query to be executed to test the validity of connections. Using
* the JDBC4 Connection.isValid() method to test connection validity can
* be more efficient on some databases and is recommended.
*
* @param connectionTestQuery a SQL query string
*/
public void setConnectionTestQuery(String connectionTestQuery)
{
this.connectionTestQuery = connectionTestQuery;
}
/**
* Get the SQL string that will be executed on all new connections when they are
* created, before they are added to the pool.
*
* @return the SQL to execute on new connections, or null
*/
public String getConnectionInitSql()
{
return connectionInitSql;
}
/**
* Set the SQL string that will be executed on all new connections when they are
* created, before they are added to the pool. If this query fails, it will be
* treated as a failed connection attempt.
*
* @param connectionInitSql the SQL to execute on new connections
*/
public void setConnectionInitSql(String connectionInitSql)
{
this.connectionInitSql = connectionInitSql;
}
/** {@inheritDoc} */
@Override
public long getConnectionTimeout()
{
return connectionTimeout;
}
/** {@inheritDoc} */
@Override
public void setConnectionTimeout(long connectionTimeoutMs)
{
if (connectionTimeoutMs == 0) {
this.connectionTimeout = Integer.MAX_VALUE;
}
else if (connectionTimeoutMs < 250) {
throw new IllegalArgumentException("connectionTimeout cannot be less than 250ms");
}
else {
this.connectionTimeout = connectionTimeoutMs;
}
}
/** {@inheritDoc} */
@Override
public long getValidationTimeout()
{
return validationTimeout;
}
/** {@inheritDoc} */
@Override
public void setValidationTimeout(long validationTimeoutMs)
{
if (validationTimeoutMs < 250) {
throw new IllegalArgumentException("validationTimeout cannot be less than 250ms");
}
this.validationTimeout = validationTimeoutMs;
}
/**
* Get the {@link DataSource} that has been explicitly specified to be wrapped by the
* pool.
*
* @return the {@link DataSource} instance, or null
*/
public DataSource getDataSource()
{
return dataSource;
}
/**
* Set a {@link DataSource} for the pool to explicitly wrap. This setter is not
* available through property file based initialization.
*
* @param dataSource a specific {@link DataSource} to be wrapped by the pool
*/
public void setDataSource(DataSource dataSource)
{
this.dataSource = dataSource;
}
public String getDataSourceClassName()
{
return dataSourceClassName;
}
public void setDataSourceClassName(String className)
{
this.dataSourceClassName = className;
}
public void addDataSourceProperty(String propertyName, Object value)
{
dataSourceProperties.put(propertyName, value);
}
public String getDataSourceJNDI()
{
return this.dataSourceJndiName;
}
public void setDataSourceJNDI(String jndiDataSource)
{
this.dataSourceJndiName = jndiDataSource;
}
public Properties getDataSourceProperties()
{
return dataSourceProperties;
}
public void setDataSourceProperties(Properties dsProperties)
{
dataSourceProperties.putAll(dsProperties);
}
public String getDriverClassName()
{
return driverClassName;
}
public void setDriverClassName(String driverClassName)
{
Class driverClass = null;
try {
driverClass = this.getClass().getClassLoader().loadClass(driverClassName);
LOGGER.debug("Driver class found in the HikariConfig class classloader {}", this.getClass().getClassLoader());
} catch (ClassNotFoundException e) {
ClassLoader threadContextClassLoader = Thread.currentThread().getContextClassLoader();
if (threadContextClassLoader != null && threadContextClassLoader != this.getClass().getClassLoader()) {
try {
driverClass = threadContextClassLoader.loadClass(driverClassName);
LOGGER.debug("Driver class found in Thread context class loader {}", threadContextClassLoader);
} catch (ClassNotFoundException e1) {
LOGGER.error("Failed to load class of driverClassName {} in either of HikariConfig class classloader {} or Thread context classloader {}", driverClassName, this.getClass().getClassLoader(), threadContextClassLoader);
}
} else {
LOGGER.error("Failed to load class of driverClassName {} in HikariConfig class classloader {}", driverClassName, this.getClass().getClassLoader());
}
}
if (driverClass == null) {
throw new RuntimeException("Failed to load class of driverClassName [" + driverClassName + "] in either of HikariConfig class loader or Thread context classloader");
}
try {
driverClass.newInstance();
this.driverClassName = driverClassName;
}
catch (Exception e) {
throw new RuntimeException("Failed to instantiate class " + driverClassName, e);
}
}
/** {@inheritDoc} */
@Override
public long getIdleTimeout()
{
return idleTimeout;
}
/** {@inheritDoc} */
@Override
public void setIdleTimeout(long idleTimeoutMs)
{
if (idleTimeoutMs < 0) {
throw new IllegalArgumentException("idleTimeout cannot be negative");
}
this.idleTimeout = idleTimeoutMs;
}
public String getJdbcUrl()
{
return jdbcUrl;
}
public void setJdbcUrl(String jdbcUrl)
{
this.jdbcUrl = jdbcUrl;
}
/**
* Get the default auto-commit behavior of connections in the pool.
*
* @return the default auto-commit behavior of connections
*/
public boolean isAutoCommit()
{
return isAutoCommit;
}
/**
* Set the default auto-commit behavior of connections in the pool.
*
* @param isAutoCommit the desired auto-commit default for connections
*/
public void setAutoCommit(boolean isAutoCommit)
{
this.isAutoCommit = isAutoCommit;
}
/**
* Get the pool suspension behavior (allowed or disallowed).
*
* @return the pool suspension behavior
*/
public boolean isAllowPoolSuspension()
{
return isAllowPoolSuspension;
}
/**
* Set whether or not pool suspension is allowed. There is a performance
* impact when pool suspension is enabled. Unless you need it (for a
* redundancy system for example) do not enable it.
*
* @param isAllowPoolSuspension the desired pool suspension allowance
*/
public void setAllowPoolSuspension(boolean isAllowPoolSuspension)
{
this.isAllowPoolSuspension = isAllowPoolSuspension;
}
/**
* Get the pool initialization failure timeout. See {@code #setInitializationFailTimeout(long)}
* for details.
*
* @return the number of milliseconds before the pool initialization fails
* @see HikariConfig#setInitializationFailTimeout(long)
*/
public long getInitializationFailTimeout()
{
return initializationFailTimeout;
}
/**
* Set the pool initialization failure timeout. This setting applies to pool
* initialization when {@link HikariDataSource} is constructed with a {@link HikariConfig},
* or when {@link HikariDataSource} is constructed using the no-arg constructor
* and {@link HikariDataSource#getConnection()} is called.
*
* - Any value greater than zero will be treated as a timeout for pool initialization.
* The calling thread will be blocked from continuing until a successful connection
* to the database, or until the timeout is reached. If the timeout is reached, then
* a {@code PoolInitializationException} will be thrown.
* - A value of zero will not prevent the pool from starting in the
* case that a connection cannot be obtained. However, upon start the pool will
* attempt to obtain a connection and validate that the {@code connectionTestQuery}
* and {@code connectionInitSql} are valid. If those validations fail, an exception
* will be thrown. If a connection cannot be obtained, the validation is skipped
* and the the pool will start and continue to try to obtain connections in the
* background. This can mean that callers to {@code DataSource#getConnection()} may
* encounter exceptions.
* - A value less than zero will not bypass any connection attempt and
* validation during startup, and therefore the pool will start immediately. The
* pool will continue to try to obtain connections in the background. This can mean
* that callers to {@code DataSource#getConnection()} may encounter exceptions.
*
* Note that if this timeout value is greater than or equal to zero (0), and therefore an
* initial connection validation is performed, this timeout does not override the
* {@code connectionTimeout} or {@code validationTimeout}; they will be honored before this
* timeout is applied. The default value is one millisecond.
*
* @param initializationFailTimeout the number of milliseconds before the
* pool initialization fails, or 0 to validate connection setup but continue with
* pool start, or less than zero to skip all initialization checks and start the
* pool without delay.
*/
public void setInitializationFailTimeout(long initializationFailTimeout)
{
this.initializationFailTimeout = initializationFailTimeout;
}
/**
* Get whether or not the construction of the pool should throw an exception
* if the minimum number of connections cannot be created.
*
* @return whether or not initialization should fail on error immediately
* @deprecated
*/
@Deprecated
public boolean isInitializationFailFast()
{
return initializationFailTimeout > 0;
}
/**
* Set whether or not the construction of the pool should throw an exception
* if the minimum number of connections cannot be created.
*
* @param failFast true if the pool should fail if the minimum connections cannot be created
* @deprecated
*/
@Deprecated
public void setInitializationFailFast(boolean failFast)
{
LOGGER.warn("The initializationFailFast propery is deprecated, see initializationFailTimeout");
initializationFailTimeout = (failFast ? 1 : -1);
}
public boolean isIsolateInternalQueries()
{
return isIsolateInternalQueries;
}
public void setIsolateInternalQueries(boolean isolate)
{
this.isIsolateInternalQueries = isolate;
}
@Deprecated
public boolean isJdbc4ConnectionTest()
{
return false;
}
@Deprecated
public void setJdbc4ConnectionTest(boolean useIsValid)
{
LOGGER.warn("The jdbcConnectionTest property is now deprecated, see the documentation for connectionTestQuery");
}
public MetricsTrackerFactory getMetricsTrackerFactory()
{
return metricsTrackerFactory;
}
public void setMetricsTrackerFactory(MetricsTrackerFactory metricsTrackerFactory)
{
if (metricRegistry != null) {
throw new IllegalStateException("cannot use setMetricsTrackerFactory() and setMetricRegistry() together");
}
this.metricsTrackerFactory = metricsTrackerFactory;
}
/**
* Get the Codahale MetricRegistry, could be null.
*
* @return the codahale MetricRegistry instance
*/
public Object getMetricRegistry()
{
return metricRegistry;
}
/**
* Set a Codahale MetricRegistry to use for HikariCP.
*
* @param metricRegistry the Codahale MetricRegistry to set
*/
public void setMetricRegistry(Object metricRegistry)
{
if (metricsTrackerFactory != null) {
throw new IllegalStateException("cannot use setMetricRegistry() and setMetricsTrackerFactory() together");
}
if (metricRegistry != null) {
metricRegistry = getObjectOrPerformJndiLookup(metricRegistry);
if (!(metricRegistry instanceof MetricRegistry)) {
throw new IllegalArgumentException("Class must be an instance of com.codahale.metrics.MetricRegistry");
}
}
this.metricRegistry = metricRegistry;
}
private Object getObjectOrPerformJndiLookup(Object object)
{
if (object instanceof String) {
try {
InitialContext initCtx = new InitialContext();
return initCtx.lookup((String) object);
}
catch (NamingException e) {
throw new IllegalArgumentException(e);
}
}
return object;
}
/**
* Get the Codahale HealthCheckRegistry, could be null.
*
* @return the Codahale HealthCheckRegistry instance
*/
public Object getHealthCheckRegistry()
{
return healthCheckRegistry;
}
/**
* Set a Codahale HealthCheckRegistry to use for HikariCP.
*
* @param healthCheckRegistry the Codahale HealthCheckRegistry to set
*/
public void setHealthCheckRegistry(Object healthCheckRegistry)
{
if (healthCheckRegistry != null) {
healthCheckRegistry = getObjectOrPerformJndiLookup(healthCheckRegistry);
if (!(healthCheckRegistry instanceof HealthCheckRegistry)) {
throw new IllegalArgumentException("Class must be an instance of com.codahale.metrics.health.HealthCheckRegistry");
}
}
this.healthCheckRegistry = healthCheckRegistry;
}
public Properties getHealthCheckProperties()
{
return healthCheckProperties;
}
public void setHealthCheckProperties(Properties healthCheckProperties)
{
this.healthCheckProperties.putAll(healthCheckProperties);
}
public void addHealthCheckProperty(String key, String value)
{
healthCheckProperties.setProperty(key, value);
}
public boolean isReadOnly()
{
return isReadOnly;
}
public void setReadOnly(boolean readOnly)
{
this.isReadOnly = readOnly;
}
public boolean isRegisterMbeans()
{
return isRegisterMbeans;
}
public void setRegisterMbeans(boolean register)
{
this.isRegisterMbeans = register;
}
/** {@inheritDoc} */
@Override
public long getLeakDetectionThreshold()
{
return leakDetectionThreshold;
}
/** {@inheritDoc} */
@Override
public void setLeakDetectionThreshold(long leakDetectionThresholdMs)
{
this.leakDetectionThreshold = leakDetectionThresholdMs;
}
/** {@inheritDoc} */
@Override
public long getMaxLifetime()
{
return maxLifetime;
}
/** {@inheritDoc} */
@Override
public void setMaxLifetime(long maxLifetimeMs)
{
this.maxLifetime = maxLifetimeMs;
}
/** {@inheritDoc} */
@Override
public int getMaximumPoolSize()
{
return maxPoolSize;
}
/** {@inheritDoc} */
@Override
public void setMaximumPoolSize(int maxPoolSize)
{
if (maxPoolSize < 1) {
throw new IllegalArgumentException("maxPoolSize cannot be less than 1");
}
this.maxPoolSize = maxPoolSize;
}
/** {@inheritDoc} */
@Override
public int getMinimumIdle()
{
return minIdle;
}
/** {@inheritDoc} */
@Override
public void setMinimumIdle(int minIdle)
{
if (minIdle < 0) {
throw new IllegalArgumentException("minimumIdle cannot be negative");
}
this.minIdle = minIdle;
}
/**
* Get the default password to use for DataSource.getConnection(username, password) calls.
* @return the password
*/
public String getPassword()
{
return password;
}
/**
* Set the default password to use for DataSource.getConnection(username, password) calls.
* @param password the password
*/
@Override
public void setPassword(String password)
{
this.password = password;
}
/** {@inheritDoc} */
@Override
public String getPoolName()
{
return poolName;
}
/**
* Set the name of the connection pool. This is primarily used for the MBean
* to uniquely identify the pool configuration.
*
* @param poolName the name of the connection pool to use
*/
public void setPoolName(String poolName)
{
this.poolName = poolName;
}
/**
* Get the ScheduledExecutorService used for housekeeping.
*
* @return the executor
*/
@Deprecated
public ScheduledThreadPoolExecutor getScheduledExecutorService()
{
return (ScheduledThreadPoolExecutor) scheduledExecutor;
}
/**
* Set the ScheduledExecutorService used for housekeeping.
*
* @param executor the ScheduledExecutorService
*/
@Deprecated
public void setScheduledExecutorService(ScheduledThreadPoolExecutor executor)
{
this.scheduledExecutor = executor;
}
/**
* Get the ScheduledExecutorService used for housekeeping.
*
* @return the executor
*/
public ScheduledExecutorService getScheduledExecutor()
{
return scheduledExecutor;
}
/**
* Set the ScheduledExecutorService used for housekeeping.
*
* @param executor the ScheduledExecutorService
*/
public void setScheduledExecutor(ScheduledExecutorService executor)
{
this.scheduledExecutor = executor;
}
public String getTransactionIsolation()
{
return transactionIsolationName;
}
/**
* Set the default transaction isolation level. The specified value is the
* constant name from the Connection class, eg.
* TRANSACTION_REPEATABLE_READ.
*
* @param isolationLevel the name of the isolation level
*/
public void setTransactionIsolation(String isolationLevel)
{
this.transactionIsolationName = isolationLevel;
}
/**
* Get the default username used for DataSource.getConnection(username, password) calls.
*
* @return the username
*/
public String getUsername()
{
return username;
}
/**
* Set the default username used for DataSource.getConnection(username, password) calls.
*
* @param username the username
*/
@Override
public void setUsername(String username)
{
this.username = username;
}
/**
* Get the thread factory used to create threads.
*
* @return the thread factory (may be null, in which case the default thread factory is used)
*/
public ThreadFactory getThreadFactory()
{
return threadFactory;
}
/**
* Set the thread factory to be used to create threads.
*
* @param threadFactory the thread factory (setting to null causes the default thread factory to be used)
*/
public void setThreadFactory(ThreadFactory threadFactory)
{
this.threadFactory = threadFactory;
}
@SuppressWarnings("StatementWithEmptyBody")
public void validate()
{
if (poolName == null) {
poolName = "HikariPool-" + generatePoolNumber();
}
else if (isRegisterMbeans && poolName.contains(":")) {
throw new IllegalArgumentException("poolName cannot contain ':' when used with JMX");
}
// treat empty property as null
catalog = getNullIfEmpty(catalog);
connectionInitSql = getNullIfEmpty(connectionInitSql);
connectionTestQuery = getNullIfEmpty(connectionTestQuery);
transactionIsolationName = getNullIfEmpty(transactionIsolationName);
dataSourceClassName = getNullIfEmpty(dataSourceClassName);
dataSourceJndiName = getNullIfEmpty(dataSourceJndiName);
driverClassName = getNullIfEmpty(driverClassName);
jdbcUrl = getNullIfEmpty(jdbcUrl);
// Check Data Source Options
if (dataSource != null) {
if (dataSourceClassName != null) {
LOGGER.warn("{} - using dataSource and ignoring dataSourceClassName.", poolName);
}
}
else if (dataSourceClassName != null) {
if (driverClassName != null) {
LOGGER.error("{} - cannot use driverClassName and dataSourceClassName together.", poolName);
// NOTE: This exception text is referenced by a Spring Boot FailureAnalyzer, it should not be
// changed without first notifying the Spring Boot developers.
throw new IllegalStateException("cannot use driverClassName and dataSourceClassName together.");
}
else if (jdbcUrl != null) {
LOGGER.warn("{} - using dataSourceClassName and ignoring jdbcUrl.", poolName);
}
}
else if (jdbcUrl != null || dataSourceJndiName != null) {
// ok
}
else if (driverClassName != null) {
LOGGER.error("{} - jdbcUrl is required with driverClassName.", poolName);
throw new IllegalArgumentException("jdbcUrl is required with driverClassName.");
}
else {
LOGGER.error("{} - dataSource or dataSourceClassName or jdbcUrl is required.", poolName);
throw new IllegalArgumentException("dataSource or dataSourceClassName or jdbcUrl is required.");
}
validateNumerics();
if (LOGGER.isDebugEnabled() || unitTest) {
logConfiguration();
}
}
private void validateNumerics()
{
if (maxLifetime != 0 && maxLifetime < SECONDS.toMillis(30)) {
LOGGER.warn("{} - maxLifetime is less than 30000ms, setting to default {}ms.", poolName, MAX_LIFETIME);
maxLifetime = MAX_LIFETIME;
}
if (idleTimeout + SECONDS.toMillis(1) > maxLifetime && maxLifetime > 0) {
LOGGER.warn("{} - idleTimeout is close to or more than maxLifetime, disabling it.", poolName);
idleTimeout = 0;
}
if (idleTimeout != 0 && idleTimeout < SECONDS.toMillis(10)) {
LOGGER.warn("{} - idleTimeout is less than 10000ms, setting to default {}ms.", poolName, IDLE_TIMEOUT);
idleTimeout = IDLE_TIMEOUT;
}
if (leakDetectionThreshold > 0 && !unitTest) {
if (leakDetectionThreshold < SECONDS.toMillis(2) || (leakDetectionThreshold > maxLifetime && maxLifetime > 0)) {
LOGGER.warn("{} - leakDetectionThreshold is less than 2000ms or more than maxLifetime, disabling it.", poolName);
leakDetectionThreshold = 0;
}
}
if (connectionTimeout < 250) {
LOGGER.warn("{} - connectionTimeout is less than 250ms, setting to {}ms.", poolName, CONNECTION_TIMEOUT);
connectionTimeout = CONNECTION_TIMEOUT;
}
if (validationTimeout < 250) {
LOGGER.warn("{} - validationTimeout is less than 250ms, setting to {}ms.", poolName, VALIDATION_TIMEOUT);
validationTimeout = VALIDATION_TIMEOUT;
}
if (maxPoolSize < 1) {
maxPoolSize = (minIdle <= 0) ? DEFAULT_POOL_SIZE : minIdle;
}
if (minIdle < 0 || minIdle > maxPoolSize) {
minIdle = maxPoolSize;
}
}
@SuppressWarnings("StatementWithEmptyBody")
private void logConfiguration()
{
LOGGER.debug("{} - configuration:", poolName);
final Set propertyNames = new TreeSet<>(PropertyElf.getPropertyNames(HikariConfig.class));
for (String prop : propertyNames) {
try {
Object value = PropertyElf.getProperty(prop, this);
if ("dataSourceProperties".equals(prop)) {
Properties dsProps = PropertyElf.copyProperties(dataSourceProperties);
dsProps.setProperty("password", "");
value = dsProps;
}
if ("initializationFailTimeout".equals(prop) && initializationFailTimeout == Long.MAX_VALUE) {
value = "infinite";
}
else if ("transactionIsolation".equals(prop) && transactionIsolationName == null) {
value = "default";
}
else if (prop.matches("scheduledExecutorService|threadFactory") && value == null) {
value = "internal";
}
else if (prop.contains("password")) {
value = "";
}
else if (value instanceof String) {
value = "\"" + value + "\""; // quote to see lead/trailing spaces is any
}
else if (value == null) {
value = "none";
}
LOGGER.debug((prop + "................................................").substring(0, 32) + value);
}
catch (Exception e) {
// continue
}
}
}
private void loadProperties(String propertyFileName)
{
final File propFile = new File(propertyFileName);
try (final InputStream is = propFile.isFile() ? new FileInputStream(propFile) : this.getClass().getResourceAsStream(propertyFileName)) {
if (is != null) {
Properties props = new Properties();
props.load(is);
PropertyElf.setTargetFromProperties(this, props);
}
else {
throw new IllegalArgumentException("Cannot find property file: " + propertyFileName);
}
}
catch (IOException io) {
throw new RuntimeException("Failed to read property file", io);
}
}
private int generatePoolNumber()
{
// Pool number is global to the VM to avoid overlapping pool numbers in classloader scoped environments
synchronized (System.getProperties()) {
final int next = Integer.getInteger("com.zaxxer.hikari.pool_number", 0) + 1;
System.setProperty("com.zaxxer.hikari.pool_number", String.valueOf(next));
return next;
}
}
public void copyState(HikariConfig other)
{
for (Field field : HikariConfig.class.getDeclaredFields()) {
if (!Modifier.isFinal(field.getModifiers())) {
field.setAccessible(true);
try {
field.set(other, field.get(this));
}
catch (Exception e) {
throw new RuntimeException("Failed to copy HikariConfig state: " + e.getMessage(), e);
}
}
}
}
}