de.unioninvestment.eai.portal.portlet.crud.aspects.SqlContainerLoggingAspect.java Source code

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Here is the source code for de.unioninvestment.eai.portal.portlet.crud.aspects.SqlContainerLoggingAspect.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 de.unioninvestment.eai.portal.portlet.crud.aspects;

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Logging Aspekt fr SQLContainer-interne Aufrufe auf Queries. Aufrufe auf
 * getResults() bzw. getCount() werden bei ber 100ms Laufzeit im Info-Level
 * geloggt, bei schnelleren Aufrufen im DEBUG-Level.
 * 
 * @author carsten.mjartan
 */
@Aspect
public class SqlContainerLoggingAspect {

    static Logger LOG = LoggerFactory.getLogger(SqlContainerLoggingAspect.class);

    static final long SLOW_CALL_DURATION_MS = 100;

    /**
     * Leerer Konstruktor.
     */
    @SuppressWarnings("all")
    public SqlContainerLoggingAspect() {
        // empty constructor
    }

    /**
     * @param pjp
     *            die eigentlich aufgerufene Methode
     * @return eine gecachete oder neu gelesene PortletConfig Instanz
     * @throws Throwable
     *             bei Fehler
     */
    @Around("execution(public * com.vaadin.data.util.sqlcontainer.query.QueryDelegate.getCount())")
    public Object logCountQueries(ProceedingJoinPoint pjp) throws Throwable {
        LOG.info("querying database for row count");
        return runAndLogDuration(pjp);
    }

    @Around("execution(public * com.vaadin.data.util.sqlcontainer.query.QueryDelegate.getResults(..))")
    public Object logResultQueries(ProceedingJoinPoint pjp) throws Throwable {
        return runAndLogDuration(pjp);
    }

    private Object runAndLogDuration(ProceedingJoinPoint pjp) throws Throwable {
        if (LOG.isInfoEnabled()) {
            long startTime = System.currentTimeMillis();
            try {
                if (LOG.isDebugEnabled()) {
                    LOG.debug("Starting " + pjp.toShortString());
                }
                return pjp.proceed();
            } finally {
                long endTime = System.currentTimeMillis();
                long duration = endTime - startTime;
                if (duration > SLOW_CALL_DURATION_MS) {
                    LOG.info("Leaving " + pjp.toShortString() + " (" + duration + "ms)");
                } else if (LOG.isDebugEnabled()) {
                    LOG.debug("Leaving " + pjp.toShortString() + " (" + duration + "ms)");
                }
            }
        } else {
            return pjp.proceed();
        }
    }

    @Around("execution(public * com.vaadin.data.util.sqlcontainer.SQLContainer.*(..)) && !execution(public * com.vaadin.data.util.sqlcontainer.SQLContainer.getType(..))")
    public Object logContainerCalls(ProceedingJoinPoint pjp) throws Throwable {
        return runAndLogDuration(pjp);
    }

}