/*
* Copyright 2017 NAVER Corp.
*
* 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.navercorp.pinpoint.profiler.context.monitor;
import com.navercorp.pinpoint.bootstrap.plugin.monitor.DataSourceMonitor;
import com.navercorp.pinpoint.common.trace.ServiceType;
import java.lang.ref.WeakReference;
/**
* @author Taejin Koo
*/
public class DataSourceMonitorWrapper implements PluginMonitorWrapper, DataSourceMonitor {
private final int id;
private final WeakReference<DataSourceMonitor> monitorReference;
private volatile ServiceType serviceType;
public DataSourceMonitorWrapper(int id, DataSourceMonitor dataSourceMonitor) {
if (dataSourceMonitor == null) {
throw new NullPointerException("dataSourceMonitor may not be null");
}
this.id = id;
this.monitorReference = new WeakReference<DataSourceMonitor>(dataSourceMonitor);
}
private DataSourceMonitor getInstance() {
return monitorReference.get();
}
@Override
public int getId() {
return id;
}
@Override
public ServiceType getServiceType() {
if (this.serviceType != null) {
return this.serviceType;
}
DataSourceMonitor dataSourceMonitor = getInstance();
if (dataSourceMonitor != null) {
ServiceType serviceType = dataSourceMonitor.getServiceType();
if (serviceType != null) {
this.serviceType = serviceType;
}
return serviceType;
}
return ServiceType.UNKNOWN;
}
@Override
public String getUrl() {
DataSourceMonitor dataSourceMonitor = getInstance();
if (dataSourceMonitor != null) {
return dataSourceMonitor.getUrl();
}
return null;
}
@Override
public int getActiveConnectionSize() {
DataSourceMonitor dataSourceMonitor = getInstance();
if (dataSourceMonitor != null) {
return dataSourceMonitor.getActiveConnectionSize();
}
return -1;
}
@Override
public int getMaxConnectionSize() {
DataSourceMonitor dataSourceMonitor = getInstance();
if (dataSourceMonitor != null) {
return dataSourceMonitor.getMaxConnectionSize();
}
return -1;
}
@Override
public boolean isDisabled() {
DataSourceMonitor dataSourceMonitor = getInstance();
if (dataSourceMonitor == null) {
return true;
}
return dataSourceMonitor.isDisabled();
}
@Override
public boolean equalsWithUnwrap(Object object) {
if (object == null) {
return false;
}
DataSourceMonitor instance = getInstance();
if (instance == null) {
return false;
}
return instance == object;
}
@Override
public String toString() {
final StringBuilder sb = new StringBuilder("DataSourceMonitorWrapper{");
sb.append("id=").append(id);
sb.append('}');
return sb.toString();
}
}