/*
* Copyright 1999-2017 Alibaba Group Holding Ltd.
*
* 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.alibaba.druid.stat;
import java.util.Date;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
public class JdbcResultSetStat implements JdbcResultSetStatMBean {
private final AtomicInteger openingCount = new AtomicInteger();
private final AtomicInteger openingMax = new AtomicInteger();
private final AtomicLong openCount = new AtomicLong();
private final AtomicLong errorCount = new AtomicLong();
private final AtomicLong aliveNanoTotal = new AtomicLong();
private final AtomicLong aliveNanoMax = new AtomicLong();
private final AtomicLong aliveNanoMin = new AtomicLong();
private Throwable lastError;
private long lastErrorTime;
private long lastOpenTime = 0;
private final AtomicLong fetchRowCount = new AtomicLong(0); // 总共读取的行数
private final AtomicLong closeCount = new AtomicLong(0); // ResultSet打开的计数
public void reset() {
openingMax.set(0);
openCount.set(0);
errorCount.set(0);
aliveNanoTotal.set(0);
aliveNanoMax.set(0);
aliveNanoMin.set(0);
lastError = null;
lastErrorTime = 0;
lastOpenTime = 0;
fetchRowCount.set(0);
closeCount.set(0);
}
public void beforeOpen() {
int invoking = openingCount.incrementAndGet();
for (;;) {
int max = openingMax.get();
if (invoking > max) {
if (openingMax.compareAndSet(max, invoking)) {
break;
}
} else {
break;
}
}
openCount.incrementAndGet();
lastOpenTime = System.currentTimeMillis();
}
public long getErrorCount() {
return errorCount.get();
}
public int getOpeningCount() {
return openingCount.get();
}
public int getOpeningMax() {
return openingMax.get();
}
public long getOpenCount() {
return openCount.get();
}
public Date getLastOpenTime() {
if (lastOpenTime == 0) {
return null;
}
return new Date(lastOpenTime);
}
public long getAliveNanoTotal() {
return aliveNanoTotal.get();
}
public long getAliveMillisTotal() {
return aliveNanoTotal.get() / (1000 * 1000);
}
public long getAliveMilisMin() {
return aliveNanoMin.get() / (1000 * 1000);
}
public long getAliveMilisMax() {
return aliveNanoMax.get() / (1000 * 1000);
}
public void afterClose(long aliveNano) {
openingCount.decrementAndGet();
aliveNanoTotal.addAndGet(aliveNano);
for (;;) {
long max = aliveNanoMax.get();
if (aliveNano > max) {
if (aliveNanoMax.compareAndSet(max, aliveNano)) {
break;
}
} else {
break;
}
}
for (;;) {
long min = aliveNanoMin.get();
if (aliveNano < min) {
if (aliveNanoMin.compareAndSet(min, aliveNano)) {
break;
}
} else {
break;
}
}
}
public Throwable getLastError() {
return lastError;
}
public Date getLastErrorTime() {
if (lastErrorTime <= 0) {
return null;
}
return new Date(lastErrorTime);
}
public void error(Throwable error) {
errorCount.incrementAndGet();
lastError = error;
lastErrorTime = System.currentTimeMillis();
}
@Override
public long getHoldMillisTotal() {
return getAliveNanoTotal() / (1000 * 1000);
}
@Override
public long getFetchRowCount() {
return fetchRowCount.get();
}
@Override
public long getCloseCount() {
return closeCount.get();
}
public void addFetchRowCount(long fetchCount) {
fetchRowCount.addAndGet(fetchCount);
}
public void incrementCloseCounter() {
closeCount.incrementAndGet();
}
}