com.rockagen.gnext.service.spring.aspect.OpLogAspect.java Source code

Introduction

Here is the source code for com.rockagen.gnext.service.spring.aspect.OpLogAspect.java

Source

/*
 * Copyright 2014-2015 the original author or authors.
 *
 * 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.rockagen.gnext.service.spring.aspect;

import com.rockagen.gnext.annotation.Plog;
import com.rockagen.gnext.po.AuthUser;
import com.rockagen.gnext.po.nosql.OpLog;
import com.rockagen.gnext.service.AuthUserServ;
import com.rockagen.gnext.service.spring.security.extension.ExWebAuthenticationDetails;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;

import javax.annotation.Resource;
import java.lang.reflect.Method;
import java.util.Date;
import java.util.Optional;

/**
 * Operate log aspect weaver,using <code>Around</code> Mode
 * 
 * @author RA
 */
public class OpLogAspect {

    // ~ Instance fields ==================================================

    @Resource
    private MongoTemplate mongoTemplate;

    @Resource
    private AuthUserServ authUserServ;

    // ~ Methods ==================================================

    /**
     * [Main] {@link Around}
     * @param pjp {@link ProceedingJoinPoint}
     * @return Object
     * @throws Throwable
     */
    public Object around(ProceedingJoinPoint pjp) throws Throwable {

        Object obj = null;

        MethodSignature signature = (MethodSignature) pjp.getSignature();
        Method method = signature.getMethod();

        int result = 1;
        String message = "";
        String action = getPlogValue(method);
        Date startAt = new Date();
        try {
            // call target object method
            obj = pjp.proceed();
        } catch (Exception e) {
            result = 0;
            message = e.getMessage();
            throw e;
        } finally {
            register(action, startAt, result, message);
        }
        return obj;
    }

    /**
     * Register request info
     * @param action action
     * @param startAt start at
     * @param result result 0,1
     * @param message message
     */
    private void register(String action, Date startAt, int result, String message) {

        Date endAt = new Date();
        OpLog l = new OpLog();

        l.setAction(action);
        l.setStartAt(startAt);
        l.setEndAt(endAt);
        l.setIp(getIp());
        l.setTimes(l.getEndAt().getTime() - l.getStartAt().getTime());
        l.setMessage(message);
        l.setResult(result);
        l.setUsername(getUsername());

        Optional<AuthUser> au = authUserServ.load(getUsername());

        au.ifPresent(x -> {
            Optional.ofNullable(x.getLastUserReferer()).ifPresent(y -> l.setUserReferer(y.value()));
            Optional.ofNullable(x.getType()).ifPresent(y -> l.setUserType(y.value()));
        });

        mongoTemplate.save(l);

    }

    /**
     * Get {@link Authentication}
     * @return {@link Authentication}
     */
    private Authentication getAuthentication() {
        SecurityContext ctx = SecurityContextHolder.getContext();
        if (ctx != null) {
            Authentication auth = ctx.getAuthentication();
            if (auth != null) {
                return auth;
            }
        }
        return null;
    }

    /**
     * Get username
     * @return username
     */
    private String getUsername() {
        String username = "unknown";
        Authentication auth = getAuthentication();
        if (auth != null) {
            return auth.getName();
        }
        return username;
    }

    /**
     * Get ip address
     * @return ip
     */
    private String getIp() {
        String ip = "0.0.0.0";
        Authentication auth = getAuthentication();
        if (auth != null) {
            return ((ExWebAuthenticationDetails) auth.getDetails()).getRemoteAddress();
        }
        return ip;
    }

    /**
     * Get {@link com.rockagen.gnext.annotation.Plog} value
     * 
     * @param method method
     * @return {@link com.rockagen.gnext.annotation.Plog} value
     */
    private String getPlogValue(Method method) {
        if (method.isAnnotationPresent(Plog.class)) {
            Plog plog = method.getAnnotation(Plog.class);
            return plog.value();
        } else {
            return method.getDeclaringClass() + "#" + method.getName();
        }
    }

}