DataSourceSyncRecorder.java
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/*
* Copyright (c) 2013, OpenCloudDB/MyCAT and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software;Designed and Developed mainly by many Chinese
* opensource volunteers. you can redistribute it and/or modify it under the
* terms of the GNU General Public License version 2 only, as published by the
* Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Any questions about this component can be directed to it's project Web address
* https://code.google.com/p/opencloudb/.
*
*/
package io.mycat.statistic;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import org.slf4j.Logger; import org.slf4j.LoggerFactory;
import io.mycat.config.model.DataHostConfig;
import io.mycat.util.TimeUtil;
/**
* 记录最近3个时段的平均响应时间，默认1，10，30分钟。
*
* @author songwie
*/
public class DataSourceSyncRecorder {
private Map<String, String> records;
private final List<Record> asynRecords;//value,time
private static final Logger LOGGER = LoggerFactory.getLogger("DataSourceSyncRecorder");
private static final long SWAP_TIME = 24 * 60 * 60 * 1000L;
//日期处理
private static final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private int switchType = 2;
public DataSourceSyncRecorder() {
this.records = new HashMap<String, String>() ;
this.asynRecords = new LinkedList<Record>();
}
public String get() {
return records.toString();
}
public void set(Map<String, String> resultResult,int switchType) {
try{
long time = TimeUtil.currentTimeMillis();
this.switchType = switchType;
remove(time);
if (resultResult!=null && !resultResult.isEmpty()) {
this.records = resultResult;
if(switchType==DataHostConfig.SYN_STATUS_SWITCH_DS){ //slave
String sencords = resultResult.get("Seconds_Behind_Master");
long Seconds_Behind_Master = -1;
if(sencords!=null){
Seconds_Behind_Master = Long.parseLong(sencords);
}
this.asynRecords.add(new Record(TimeUtil.currentTimeMillis(),Seconds_Behind_Master));
}
if(switchType==DataHostConfig.CLUSTER_STATUS_SWITCH_DS){//cluster
double wsrep_local_recv_queue_avg = Double.valueOf(resultResult.get("wsrep_local_recv_queue_avg"));
this.asynRecords.add(new Record(TimeUtil.currentTimeMillis(),wsrep_local_recv_queue_avg));
}
return;
}
}catch(Exception e){
LOGGER.error("record DataSourceSyncRecorder error " + e.getMessage());
}
}
/**
* 删除超过统计时间段的数据
*/
private void remove(long time) {
final List<Record> recordsAll = this.asynRecords;
while (recordsAll.size() > 0) {
Record record = recordsAll.get(0);
if (time >= record.time + SWAP_TIME) {
recordsAll.remove(0);
} else {
break;
}
}
}
public int getSwitchType() {
return this.switchType;
}
public void setSwitchType(int switchType) {
this.switchType = switchType;
}
public Map<String, String> getRecords() {
return this.records;
}
public List<Record> getAsynRecords() {
return this.asynRecords;
}
public static SimpleDateFormat getSdf() {
return sdf;
}
/**
* @author mycat
*/
public static class Record {
private Object value;
private long time;
Record(long time, Object value) {
this.time = time;
this.value = value;
}
public Object getValue() {
return this.value;
}
public void setValue(Object value) {
this.value = value;
}
public long getTime() {
return this.time;
}
public void setTime(long time) {
this.time = time;
}
}
}