com.github.piasy.aopdemolib.TraceAspect.java Source code

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Here is the source code for com.github.piasy.aopdemolib.TraceAspect.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016 Piasy
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.github.piasy.aopdemolib;

import android.os.Environment;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;

/**
 * Created by Piasy{github.com/Piasy} on 5/15/16.
 */
@Aspect
public class TraceAspect {
    @Pointcut("execution(@com.github.piasy.aopdemolib.Trace * *(..))")
    public void methodToTrace() {
    }

    @Pointcut("execution(@com.github.piasy.aopdemolib.Trace *.new(..))")
    public void constructorToTrace() {
    }

    @Around("methodToTrace() || constructorToTrace()")
    public Object trace(ProceedingJoinPoint joinPoint) throws Throwable {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        String className = signature.getDeclaringType().getSimpleName();
        String methodName = signature.getName();

        long start = System.nanoTime();
        Object result = joinPoint.proceed();
        long stop = System.nanoTime();

        Log.d(className + "::" + methodName, "" + (stop - start));
        PrintWriter writer = new PrintWriter(
                new FileOutputStream(new File(Environment.getExternalStorageDirectory(), "reflect.log"), true));
        writer.println(className + "::" + methodName + (stop - start));
        writer.close();

        return result;
    }
}