/*
* Copyright 2016 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.bootstrap.interceptor.scope;
import com.navercorp.pinpoint.bootstrap.interceptor.AroundInterceptor;
import com.navercorp.pinpoint.bootstrap.interceptor.InterceptorInvokerHelper;
import com.navercorp.pinpoint.bootstrap.logging.PLogger;
import com.navercorp.pinpoint.bootstrap.logging.PLoggerFactory;
/**
* @author emeroad
* @author jaehong.kim
*/
public class ExceptionHandleScopedInterceptor implements AroundInterceptor {
private final PLogger logger = PLoggerFactory.getLogger(getClass());
private final boolean debugEnabled = logger.isDebugEnabled();
private final AroundInterceptor interceptor;
private final InterceptorScope scope;
private final ExecutionPolicy policy;
public ExceptionHandleScopedInterceptor(AroundInterceptor interceptor, InterceptorScope scope, ExecutionPolicy policy) {
if (interceptor == null) {
throw new NullPointerException("interceptor must not be null");
}
if (scope == null) {
throw new NullPointerException("scope must not be null");
}
if (policy == null) {
throw new NullPointerException("policy must not be null");
}
this.interceptor = interceptor;
this.scope = scope;
this.policy = policy;
}
@Override
public void before(Object target, Object[] args) {
final InterceptorScopeInvocation transaction = scope.getCurrentInvocation();
if (transaction.tryEnter(policy)) {
try {
interceptor.before(target, args);
} catch (Throwable t) {
InterceptorInvokerHelper.handleException(t);
}
} else {
if (debugEnabled) {
logger.debug("tryBefore() returns false: interceptorScopeTransaction: {}, executionPoint: {}. Skip interceptor {}", transaction, policy, interceptor.getClass());
}
}
}
@Override
public void after(Object target, Object[] args, Object result, Throwable throwable) {
final InterceptorScopeInvocation transaction = scope.getCurrentInvocation();
if (transaction.canLeave(policy)) {
try {
interceptor.after(target, args, result, throwable);
} catch (Throwable t) {
InterceptorInvokerHelper.handleException(t);
} finally {
transaction.leave(policy);
}
} else {
if (debugEnabled) {
logger.debug("tryAfter() returns false: interceptorScopeTransaction: {}, executionPoint: {}. Skip interceptor {}", transaction, policy, interceptor.getClass());
}
}
}
}