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Merge pull request #84 in CORE/base-third from ~ABEL.CHEN/base-third:release/10.0 to release/10.0 

* commit '68085657b2a1158c5e8b21e88ad0a5c814f48eb1':
  线程切换，多线程同步问题
  fix import
  druid断线重连机制修复
final/10.0.3
abel.chen 6 years ago
parent
84c6864825 68085657b2
commit
298a36ade7
1 changed files with 135 additions and 86 deletions
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  1. 221
      fine-druid/src/com/fr/third/alibaba/druid/pool/DruidDataSource.java

221
fine-druid/src/com/fr/third/alibaba/druid/pool/DruidDataSource.java
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@ -100,78 +100,78 @@ import com.fr.third.alibaba.druid.wall.WallProviderStatValue;
*/ */
public class DruidDataSource extends DruidAbstractDataSource implements DruidDataSourceMBean, ManagedDataSource, Referenceable, Closeable, Cloneable, ConnectionPoolDataSource, MBeanRegistration { public class DruidDataSource extends DruidAbstractDataSource implements DruidDataSourceMBean, ManagedDataSource, Referenceable, Closeable, Cloneable, ConnectionPoolDataSource, MBeanRegistration {
private final static Log LOG = LogFactory.getLog(DruidDataSource.class); private final static Log LOG = LogFactory.getLog(DruidDataSource.class);
private static final long serialVersionUID = 1L; private static final long serialVersionUID = 1L;
// stats // stats
private final AtomicLong recycleErrorCount = new AtomicLong(); private final AtomicLong recycleErrorCount = new AtomicLong();
private long connectCount = 0L; private long connectCount = 0L;
private long closeCount = 0L; private long closeCount = 0L;
private final AtomicLong connectErrorCount = new AtomicLong(); private final AtomicLong connectErrorCount = new AtomicLong();
private long recycleCount = 0L; private long recycleCount = 0L;
private long removeAbandonedCount = 0L; private long removeAbandonedCount = 0L;
private long notEmptyWaitCount = 0L; private long notEmptyWaitCount = 0L;
private long notEmptySignalCount = 0L; private long notEmptySignalCount = 0L;
private long notEmptyWaitNanos = 0L; private long notEmptyWaitNanos = 0L;
private int keepAliveCheckCount = 0; private int keepAliveCheckCount = 0;
private int activePeak = 0; private int activePeak = 0;
private long activePeakTime = 0; private long activePeakTime = 0;
private int poolingPeak = 0; private int poolingPeak = 0;
private long poolingPeakTime = 0; private long poolingPeakTime = 0;
// store // store
private volatile DruidConnectionHolder[] connections; private volatile DruidConnectionHolder[] connections;
private int poolingCount = 0; private int poolingCount = 0;
private int activeCount = 0; private int activeCount = 0;
private long discardCount = 0; private long discardCount = 0;
private int notEmptyWaitThreadCount = 0; private int notEmptyWaitThreadCount = 0;
private int notEmptyWaitThreadPeak = 0; private int notEmptyWaitThreadPeak = 0;
// //
private DruidConnectionHolder[] evictConnections; private DruidConnectionHolder[] evictConnections;
private DruidConnectionHolder[] keepAliveConnections; private DruidConnectionHolder[] keepAliveConnections;
// threads // threads
private ScheduledFuture<?> destroySchedulerFuture; private ScheduledFuture<?> destroySchedulerFuture;
private DestroyTask destroyTask; private DestroyTask destroyTask;
private CreateConnectionThread createConnectionThread; private CreateConnectionThread createConnectionThread;
private DestroyConnectionThread destroyConnectionThread; private DestroyConnectionThread destroyConnectionThread;
private LogStatsThread logStatsThread; private LogStatsThread logStatsThread;
private int createTaskCount; private int createTaskCount;
private final CountDownLatch initedLatch = new CountDownLatch(2); private CountDownLatch initedLatch = new CountDownLatch(2);
private volatile boolean enable = true; private volatile boolean enable = true;
private boolean resetStatEnable = true; private boolean resetStatEnable = true;
private final AtomicLong resetCount = new AtomicLong(); private final AtomicLong resetCount = new AtomicLong();
private String initStackTrace; private String initStackTrace;
private volatile boolean closed = false; private volatile boolean closed = false;
private long closeTimeMillis = -1L; private long closeTimeMillis = -1L;
protected JdbcDataSourceStat dataSourceStat; protected JdbcDataSourceStat dataSourceStat;
private boolean useGlobalDataSourceStat = false; private boolean useGlobalDataSourceStat = false;
private boolean mbeanRegistered = false; private boolean mbeanRegistered = false;
public static ThreadLocal<Long> waitNanosLocal = new ThreadLocal<Long>(); public static ThreadLocal<Long> waitNanosLocal = new ThreadLocal<Long>();
private boolean logDifferentThread = true; private boolean logDifferentThread = true;
private volatile boolean keepAlive = false; private volatile boolean keepAlive = false;
public DruidDataSource(){ public DruidDataSource() {
this(false); this(false);
} }
public DruidDataSource(boolean fairLock){ public DruidDataSource(boolean fairLock) {
super(fairLock); super(fairLock);
configFromPropety(System.getProperties()); configFromPropety(System.getProperties());
@ -602,6 +602,34 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
this.connectProperties = properties; this.connectProperties = properties;
} }
private synchronized void createThreadChange() {
String threadName = "Druid-ConnectionPool-Create-" + System.identityHashCode(this) + this.getUrl();
createConnectionThread = new CreateConnectionThread(threadName);
createConnectionThread.setStarted(false);
String destroyName = "Druid-ConnectionPool-Destroy-" + System.identityHashCode(this) + this.getUrl();
destroyConnectionThread = new DestroyConnectionThread(destroyName);
destroyConnectionThread.setStarted(false);
initedLatch = new CountDownLatch(2);
}
private void checkThread() throws SQLException {
if (!createConnectionThread.isStarted() && !destroyConnectionThread.isStarted()) {
synchronized (this) {//线程安全问题，加个双检锁
if (!createConnectionThread.isStarted() && !destroyConnectionThread.isStarted()) {
createConnectionThread.setStarted(true);
createConnectionThread.start();
destroyConnectionThread.setStarted(true);
destroyConnectionThread.start();
try {
initedLatch.await();
} catch (InterruptedException e) {
throw new SQLException(e.getMessage(), e);
}
}
}
}
}
public void init() throws SQLException { public void init() throws SQLException {
if (inited) { if (inited) {
return; return;
@ -645,7 +673,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
if (JdbcConstants.MYSQL.equals(this.dbType) || // if (JdbcConstants.MYSQL.equals(this.dbType) || //
JdbcConstants.MARIADB.equals(this.dbType)) { JdbcConstants.MARIADB.equals(this.dbType)) {
boolean cacheServerConfigurationSet = false; boolean cacheServerConfigurationSet = false;
if (this.connectProperties.containsKey("cacheServerConfiguration")) { if (this.connectProperties.containsKey("cacheServerConfiguration")) {
cacheServerConfigurationSet = true; cacheServerConfigurationSet = true;
@ -805,7 +833,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
period = 1000; period = 1000;
} }
destroySchedulerFuture = destroyScheduler.scheduleAtFixedRate(destroyTask, period, period, destroySchedulerFuture = destroyScheduler.scheduleAtFixedRate(destroyTask, period, period,
TimeUnit.MILLISECONDS); TimeUnit.MILLISECONDS);
initedLatch.countDown(); initedLatch.countDown();
return; return;
} }
@ -817,7 +845,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
protected void createAndStartCreatorThread() { protected void createAndStartCreatorThread() {
if (createScheduler == null) { if (createScheduler == null) {
String threadName = "Druid-ConnectionPool-Create-" + System.identityHashCode(this); String threadName = "Druid-ConnectionPool-Create-" + System.identityHashCode(this) + this.getUrl();
createConnectionThread = new CreateConnectionThread(threadName); createConnectionThread = new CreateConnectionThread(threadName);
createConnectionThread.start(); createConnectionThread.start();
return; return;
@ -828,7 +856,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
/** /**
* load filters from SPI ServiceLoader * load filters from SPI ServiceLoader
* *
* @see ServiceLoader * @see ServiceLoader
*/ */
private void initFromSPIServiceLoader() { private void initFromSPIServiceLoader() {
@ -873,7 +901,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
/** /**
* 会去重复 * 会去重复
* *
* @param filter * @param filter
*/ */
private void addFilter(Filter filter) { private void addFilter(Filter filter) {
@ -928,7 +956,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
if (driver.getMajorVersion() < 10) { if (driver.getMajorVersion() < 10) {
throw new SQLException("not support oracle driver " + driver.getMajorVersion() + "." throw new SQLException("not support oracle driver " + driver.getMajorVersion() + "."
+ driver.getMinorVersion()); + driver.getMinorVersion());
} }
if (driver.getMajorVersion() == 10 && isUseOracleImplicitCache()) { if (driver.getMajorVersion() == 10 && isUseOracleImplicitCache()) {
@ -965,7 +993,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
if (query instanceof SQLSelectQueryBlock) { if (query instanceof SQLSelectQueryBlock) {
if (((SQLSelectQueryBlock) query).getFrom() == null) { if (((SQLSelectQueryBlock) query).getFrom() == null) {
LOG.error("invalid oracle validationQuery. " + validationQuery + ", may should be : " + validationQuery LOG.error("invalid oracle validationQuery. " + validationQuery + ", may should be : " + validationQuery
+ " FROM DUAL"); + " FROM DUAL");
} }
} }
} }
@ -994,7 +1022,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
if (query instanceof SQLSelectQueryBlock) { if (query instanceof SQLSelectQueryBlock) {
if (((SQLSelectQueryBlock) query).getFrom() == null) { if (((SQLSelectQueryBlock) query).getFrom() == null) {
LOG.error("invalid db2 validationQuery. " + validationQuery + ", may should be : " + validationQuery LOG.error("invalid db2 validationQuery. " + validationQuery + ", may should be : " + validationQuery
+ " FROM SYSDUMMY"); + " FROM SYSDUMMY");
} }
} }
} }
@ -1002,14 +1030,14 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
private void initValidConnectionChecker() { private void initValidConnectionChecker() {
String realDriverClassName = driver.getClass().getName(); String realDriverClassName = driver.getClass().getName();
if (realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER) // if (realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER) //
|| realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER_6)) { || realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER_6)) {
this.validConnectionChecker = new MySqlValidConnectionChecker(); this.validConnectionChecker = new MySqlValidConnectionChecker();
} else if (realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER) } else if (realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER)
|| realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER2)) { || realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER2)) {
this.validConnectionChecker = new OracleValidConnectionChecker(); this.validConnectionChecker = new OracleValidConnectionChecker();
} else if (realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER) } else if (realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER)
|| realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER_SQLJDBC4) || realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER_SQLJDBC4)
|| realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER_JTDS)) { || realDriverClassName.equals(JdbcConstants.SQL_SERVER_DRIVER_JTDS)) {
this.validConnectionChecker = new MSSQLValidConnectionChecker(); this.validConnectionChecker = new MSSQLValidConnectionChecker();
} else if (realDriverClassName.equals(JdbcConstants.POSTGRESQL_DRIVER)) { } else if (realDriverClassName.equals(JdbcConstants.POSTGRESQL_DRIVER)) {
this.validConnectionChecker = new PGValidConnectionChecker(); this.validConnectionChecker = new PGValidConnectionChecker();
@ -1027,7 +1055,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
String realDriverClassName = driver.getClass().getName(); String realDriverClassName = driver.getClass().getName();
if (realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER) // if (realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER) //
|| realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER_6)) { || realDriverClassName.equals(JdbcConstants.MYSQL_DRIVER_6)) {
this.exceptionSorter = new MySqlExceptionSorter(); this.exceptionSorter = new MySqlExceptionSorter();
} else if (realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER) } else if (realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER)
|| realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER2)) { || realDriverClassName.equals(JdbcConstants.ORACLE_DRIVER2)) {
@ -1055,7 +1083,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
public DruidPooledConnection getConnection(long maxWaitMillis) throws SQLException { public DruidPooledConnection getConnection(long maxWaitMillis) throws SQLException {
init(); init();
checkThread();
if (filters.size() > 0) { if (filters.size() > 0) {
FilterChainImpl filterChain = new FilterChainImpl(this); FilterChainImpl filterChain = new FilterChainImpl(this);
return filterChain.dataSource_connect(this, maxWaitMillis); return filterChain.dataSource_connect(this, maxWaitMillis);
@ -1076,7 +1104,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
public DruidPooledConnection getConnectionDirect(long maxWaitMillis) throws SQLException { public DruidPooledConnection getConnectionDirect(long maxWaitMillis) throws SQLException {
int notFullTimeoutRetryCnt = 0; int notFullTimeoutRetryCnt = 0;
for (;;) { for (; ; ) {
// handle notFullTimeoutRetry // handle notFullTimeoutRetry
DruidPooledConnection poolableConnection; DruidPooledConnection poolableConnection;
try { try {
@ -1157,7 +1185,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
/** /**
* 抛弃连接，不进行回收，而是抛弃 * 抛弃连接，不进行回收，而是抛弃
* *
* @param realConnection * @param realConnection
*/ */
public void discardConnection(Connection realConnection) { public void discardConnection(Connection realConnection) {
@ -1203,7 +1231,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
if (notEmptyWaitThreadCount >= maxWaitThreadCount) { if (notEmptyWaitThreadCount >= maxWaitThreadCount) {
connectErrorCount.incrementAndGet(); connectErrorCount.incrementAndGet();
throw new SQLException("maxWaitThreadCount " + maxWaitThreadCount + ", current wait Thread count " throw new SQLException("maxWaitThreadCount " + maxWaitThreadCount + ", current wait Thread count "
+ lock.getQueueLength()); + lock.getQueueLength());
} }
} }
@ -1235,7 +1263,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
if (holder == null) { if (holder == null) {
Throwable throwable = this.createError; Throwable throwable = this.createError;
if (throwable != null) { if (throwable != null) {
if(throwable instanceof SQLException){ if (throwable instanceof SQLException) {
throw (SQLException) throwable; throw (SQLException) throwable;
} }
throw new GetConnectionTimeoutException(throwable.getMessage(), throwable); throw new GetConnectionTimeoutException(throwable.getMessage(), throwable);
@ -1249,7 +1277,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
.append(", maxActive " + maxActive)// .append(", maxActive " + maxActive)//
; ;
JdbcDataSourceStat sourceStat = this.getDataSourceStat(); JdbcDataSourceStat sourceStat = this.getDataSourceStat();
if(sourceStat != null) { if (sourceStat != null) {
List<JdbcSqlStatValue> sqlList = sourceStat.getRuningSqlList(); List<JdbcSqlStatValue> sqlList = sourceStat.getRuningSqlList();
for (int i = 0; i < sqlList.size(); ++i) { for (int i = 0; i < sqlList.size(); ++i) {
if (i != 0) { if (i != 0) {
@ -1344,9 +1372,9 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
if (logDifferentThread // if (logDifferentThread //
&& (!isAsyncCloseConnectionEnable()) // && (!isAsyncCloseConnectionEnable()) //
&& pooledConnection.getOwnerThread() != Thread.currentThread()// && pooledConnection.getOwnerThread() != Thread.currentThread()//
) { ) {
LOG.warn("get/close not same thread"); LOG.warn("get/close not same thread");
} }
@ -1543,7 +1571,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
@Override @Override
public Object run() { public Object run() {
ObjectName objectName = DruidDataSourceStatManager.addDataSource(DruidDataSource.this, ObjectName objectName = DruidDataSourceStatManager.addDataSource(DruidDataSource.this,
DruidDataSource.this.name); DruidDataSource.this.name);
DruidDataSource.this.setObjectName(objectName); DruidDataSource.this.setObjectName(objectName);
DruidDataSource.this.mbeanRegistered = true; DruidDataSource.this.mbeanRegistered = true;
@ -1633,7 +1661,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
private DruidConnectionHolder pollLast(long nanos) throws InterruptedException, SQLException { private DruidConnectionHolder pollLast(long nanos) throws InterruptedException, SQLException {
long estimate = nanos; long estimate = nanos;
for (;;) { for (; ; ) {
if (poolingCount == 0) { if (poolingCount == 0) {
emptySignal(); // send signal to CreateThread create connection emptySignal(); // send signal to CreateThread create connection
@ -1654,8 +1682,8 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
try { try {
long startEstimate = estimate; long startEstimate = estimate;
estimate = notEmpty.awaitNanos(estimate); // signal by estimate = notEmpty.awaitNanos(estimate); // signal by
// recycle or // recycle or
// creator // creator
notEmptyWaitCount++; notEmptyWaitCount++;
notEmptyWaitNanos += (startEstimate - estimate); notEmptyWaitNanos += (startEstimate - estimate);
@ -1926,7 +1954,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
createTaskCount--; createTaskCount--;
if (poolingCount + createTaskCount < notEmptyWaitThreadCount // if (poolingCount + createTaskCount < notEmptyWaitThreadCount //
&& activeCount + poolingCount + createTaskCount < maxActive) { && activeCount + poolingCount + createTaskCount < maxActive) {
emptySignal(); emptySignal();
} }
} }
@ -1946,7 +1974,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
private void runInternal() { private void runInternal() {
for (;;) { for (; ; ) {
// addLast // addLast
lock.lock(); lock.lock();
@ -2043,8 +2071,9 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
public class CreateConnectionThread extends Thread { public class CreateConnectionThread extends Thread {
private volatile boolean started = true;
public CreateConnectionThread(String name){ public CreateConnectionThread(String name) {
super(name); super(name);
this.setDaemon(true); this.setDaemon(true);
} }
@ -2054,7 +2083,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
long lastDiscardCount = 0; long lastDiscardCount = 0;
int errorCount = 0; int errorCount = 0;
for (;;) { for (; ; ) {
// addLast // addLast
try { try {
lock.lockInterruptibly(); lock.lockInterruptibly();
@ -2102,7 +2131,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
setFailContinuous(false); setFailContinuous(false);
} catch (SQLException e) { } catch (SQLException e) {
LOG.error("create connection error, url: " + jdbcUrl + ", errorCode " + e.getErrorCode() LOG.error("create connection error, url: " + jdbcUrl + ", errorCode " + e.getErrorCode()
+ ", state " + e.getSQLState(), e); + ", state " + e.getSQLState(), e);
errorCount++; errorCount++;
if (errorCount > connectionErrorRetryAttempts && timeBetweenConnectErrorMillis > 0) { if (errorCount > connectionErrorRetryAttempts && timeBetweenConnectErrorMillis > 0) {
@ -2126,6 +2155,8 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} catch (InterruptedException interruptEx) { } catch (InterruptedException interruptEx) {
break; break;
} }
DruidDataSource.this.createThreadChange();
break;
} }
} catch (RuntimeException e) { } catch (RuntimeException e) {
LOG.error("create connection error", e); LOG.error("create connection error", e);
@ -2150,11 +2181,20 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
errorCount = 0; // reset errorCount errorCount = 0; // reset errorCount
} }
} }
public boolean isStarted() {
return started;
}
public void setStarted(boolean started) {
this.started = started;
}
} }
public class DestroyConnectionThread extends Thread { public class DestroyConnectionThread extends Thread {
private volatile boolean started = true;
public DestroyConnectionThread(String name){ public DestroyConnectionThread(String name) {
super(name); super(name);
this.setDaemon(true); this.setDaemon(true);
} }
@ -2162,7 +2202,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
public void run() { public void run() {
initedLatch.countDown(); initedLatch.countDown();
for (;;) { for (; ; ) {
// 从前面开始删除 // 从前面开始删除
try { try {
if (closed) { if (closed) {
@ -2186,6 +2226,13 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
} }
public boolean isStarted() {
return started;
}
public void setStarted(boolean started) {
this.started = started;
}
} }
public class DestroyTask implements Runnable { public class DestroyTask implements Runnable {
@ -2203,14 +2250,14 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
public class LogStatsThread extends Thread { public class LogStatsThread extends Thread {
public LogStatsThread(String name){ public LogStatsThread(String name) {
super(name); super(name);
this.setDaemon(true); this.setDaemon(true);
} }
public void run() { public void run() {
try { try {
for (;;) { for (; ; ) {
try { try {
logStats(); logStats();
} catch (Exception e) { } catch (Exception e) {
@ -2236,7 +2283,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
try { try {
Iterator<DruidPooledConnection> iter = activeConnections.keySet().iterator(); Iterator<DruidPooledConnection> iter = activeConnections.keySet().iterator();
for (; iter.hasNext();) { for (; iter.hasNext(); ) {
DruidPooledConnection pooledConnection = iter.next(); DruidPooledConnection pooledConnection = iter.next();
if (pooledConnection.isRunning()) { if (pooledConnection.isRunning()) {
@ -2288,7 +2335,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
buf.append("ownerThread current state is " + pooledConnection.getOwnerThread().getState() buf.append("ownerThread current state is " + pooledConnection.getOwnerThread().getState()
+ ", current stackTrace\n"); + ", current stackTrace\n");
trace = pooledConnection.getOwnerThread().getStackTrace(); trace = pooledConnection.getOwnerThread().getStackTrace();
for (int i = 0; i < trace.length; i++) { for (int i = 0; i < trace.length; i++) {
buf.append("\tat "); buf.append("\tat ");
@ -2304,7 +2351,9 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
return removeCount; return removeCount;
} }
/** Instance key */ /**
* Instance key
*/
protected String instanceKey = null; protected String instanceKey = null;
public Reference getReference() throws NamingException { public Reference getReference() throws NamingException {
@ -2938,7 +2987,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
if (this.statLogger != null if (this.statLogger != null
&& (this.statLogger.getClass() == iface || DruidDataSourceStatLogger.class == iface)) { && (this.statLogger.getClass() == iface || DruidDataSourceStatLogger.class == iface)) {
return true; return true;
} }
@ -2954,7 +3003,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
if (this.statLogger != null if (this.statLogger != null
&& (this.statLogger.getClass() == iface || DruidDataSourceStatLogger.class == iface)) { && (this.statLogger.getClass() == iface || DruidDataSourceStatLogger.class == iface)) {
return (T) statLogger; return (T) statLogger;
} }
@ -2998,7 +3047,7 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
} }
int fillCount = 0; int fillCount = 0;
for (;;) { for (; ; ) {
try { try {
lock.lockInterruptibly(); lock.lockInterruptibly();
} catch (InterruptedException e) { } catch (InterruptedException e) {

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