/*
* Copyright 2014 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.plugin.redis.interceptor;
import java.net.URI;
import redis.clients.jedis.JedisShardInfo;
import com.navercorp.pinpoint.bootstrap.context.MethodDescriptor;
import com.navercorp.pinpoint.bootstrap.context.TraceContext;
import com.navercorp.pinpoint.bootstrap.interceptor.AroundInterceptor;
import com.navercorp.pinpoint.bootstrap.logging.PLogger;
import com.navercorp.pinpoint.bootstrap.logging.PLoggerFactory;
import com.navercorp.pinpoint.plugin.redis.EndPointAccessor;
/**
* Jedis (redis client) constructor interceptor
* - trace endPoint
*
* @author jaehong.kim
*
*/
public class JedisConstructorInterceptor implements AroundInterceptor {
private final PLogger logger = PLoggerFactory.getLogger(this.getClass());
private final boolean isDebug = logger.isDebugEnabled();
public JedisConstructorInterceptor(TraceContext traceContext, MethodDescriptor methodDescriptor) {
}
@Override
public void before(Object target, Object[] args) {
if (isDebug) {
logger.beforeInterceptor(target, args);
}
try {
if (!validate(target, args)) {
return;
}
final StringBuilder endPoint = new StringBuilder();
// first arg is host
if (args[0] instanceof String) {
endPoint.append(args[0]);
// second arg is port
if (args.length >= 2 && args[1] instanceof Integer) {
endPoint.append(":").append(args[1]);
} else {
// set default port
endPoint.append(":").append(6379);
}
} else if (args[0] instanceof URI) {
final URI uri = (URI) args[0];
endPoint.append(uri.getHost());
endPoint.append(":");
endPoint.append(uri.getPort());
} else if (args[0] instanceof JedisShardInfo) {
final JedisShardInfo info = (JedisShardInfo) args[0];
endPoint.append(info.getHost());
endPoint.append(":");
endPoint.append(info.getPort());
}
((EndPointAccessor)target)._$PINPOINT$_setEndPoint(endPoint.toString());
} catch (Throwable t) {
if (logger.isWarnEnabled()) {
logger.warn("Failed to BEFORE process. {}", t.getMessage(), t);
}
}
}
private boolean validate(final Object target, final Object[] args) {
if (args == null || args.length == 0 || args[0] == null) {
logger.debug("Invalid arguments. Null or not found args({}).", args);
return false;
}
if (!(target instanceof EndPointAccessor)) {
logger.debug("Invalid target object. Need field accessor({}).", EndPointAccessor.class.getName());
return false;
}
return true;
}
@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
}
}