/*
* 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.tomcat.interceptor;
import com.navercorp.pinpoint.bootstrap.async.AsyncTraceIdAccessor;
import com.navercorp.pinpoint.bootstrap.context.AsyncTraceId;
import com.navercorp.pinpoint.bootstrap.context.MethodDescriptor;
import com.navercorp.pinpoint.bootstrap.context.SpanEventRecorder;
import com.navercorp.pinpoint.bootstrap.context.Trace;
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.tomcat.AsyncAccessor;
import com.navercorp.pinpoint.plugin.tomcat.TomcatConstants;
/**
*
* @author jaehong.kim
*
*/
public class RequestStartAsyncInterceptor implements AroundInterceptor {
private PLogger logger = PLoggerFactory.getLogger(this.getClass());
private boolean isDebug = logger.isDebugEnabled();
private TraceContext traceContext;
private MethodDescriptor descriptor;
public RequestStartAsyncInterceptor(TraceContext context, MethodDescriptor descriptor) {
this.traceContext = context;
this.descriptor = descriptor;
}
@Override
public void before(Object target, Object[] args) {
if (isDebug) {
logger.beforeInterceptor(target, "", descriptor.getMethodName(), "", args);
}
final Trace trace = traceContext.currentTraceObject();
if (trace == null) {
return;
}
trace.traceBlockBegin();
}
@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
if (isDebug) {
logger.afterInterceptor(target, "", descriptor.getMethodName(), "", args);
}
final Trace trace = traceContext.currentTraceObject();
if (trace == null) {
return;
}
try {
SpanEventRecorder recorder = trace.currentSpanEventRecorder();
if (validate(target, result, throwable)) {
((AsyncAccessor)target)._$PINPOINT$_setAsync(Boolean.TRUE);
// make asynchronous trace-id
final AsyncTraceId asyncTraceId = trace.getAsyncTraceId();
recorder.recordNextAsyncId(asyncTraceId.getAsyncId());
// result is BasicFuture
// type check validate()
((AsyncTraceIdAccessor)result)._$PINPOINT$_setAsyncTraceId(asyncTraceId);
if (isDebug) {
logger.debug("Set asyncTraceId metadata {}", asyncTraceId);
}
}
recorder.recordServiceType(TomcatConstants.TOMCAT_METHOD);
recorder.recordApi(descriptor);
recorder.recordException(throwable);
} catch (Throwable t) {
logger.warn("Failed to AFTER process. {}", t.getMessage(), t);
} finally {
trace.traceBlockEnd();
}
}
private boolean validate(final Object target, final Object result, final Throwable throwable) {
if (throwable != null || result == null) {
return false;
}
if (!(target instanceof AsyncAccessor)) {
logger.debug("Invalid target object. Need field accessor({}).", AsyncAccessor.class.getName());
return false;
}
if (!(result instanceof AsyncTraceIdAccessor)) {
logger.debug("Invalid target object. Need metadata accessor({}).", AsyncTraceIdAccessor.class.getName());
return false;
}
return true;
}
}