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/**
 * Copyright (c) 2012-2014, jcabi.com
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met: 1) Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the following
 * disclaimer. 2) Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided
 * with the distribution. 3) Neither the name of the jcabi.com nor
 * the names of its contributors may be used to endorse or promote
 * products derived from this software without specific prior written
 * permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.jcabi.aspects.aj;

import com.jcabi.aspects.Immutable;
import com.jcabi.log.Logger;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;

/**
 * Logs all exceptions thrown out of a method and swallow exception.
 *
 * @author Krzysztof Krason ([email protected])
 * @version $Id$
 * @since 0.1.10
 * @see com.jcabi.aspects.LogExceptions
 * @checkstyle IllegalThrows (500 lines)
 */
@Aspect
@Immutable
public final class QuietExceptionsLogger {

    /**
     * Catch exception and log it, the exception will be swallowed.
     *
     * 

This aspect should be used only on void returning methods. * *

Try NOT to change the signature of this method, in order to keep * it backward compatible. * * @param point Joint point * @return The result of call * @throws Throwable If something goes wrong inside */ @Around( // @checkstyle StringLiteralsConcatenation (2 lines) "execution(* * (..))" + " && @annotation(com.jcabi.aspects.Quietly)" ) @SuppressWarnings("PMD.AvoidCatchingThrowable") public Object wrap(final ProceedingJoinPoint point) throws Throwable { if (!MethodSignature.class.cast(point.getSignature()).getReturnType() .equals(Void.TYPE)) { throw new IllegalStateException( String.format( "%s: Return type is not void, cannot use @Quietly", Mnemos.toText(point, true, true) ) ); } Object result = null; try { result = point.proceed(); // @checkstyle IllegalCatch (1 line) } catch (final Throwable ex) { Logger.warn( JoinPointUtils.targetize(point), "%[exception]s", ex ); } return result; } }





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