net.kamhon.ieagle.struts2.interceptor.LoggerInterceptor.java Source code

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Here is the source code for net.kamhon.ieagle.struts2.interceptor.LoggerInterceptor.java

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/*
 * Copyright 2012 Eng Kam Hon (kamhon@gmail.com)
 * 
 * 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 net.kamhon.ieagle.struts2.interceptor;

import java.util.Map;

import net.kamhon.ieagle.application.Application;
import net.kamhon.ieagle.exception.DataException;
import net.kamhon.ieagle.exception.ExceptionLoggingBundle;
import net.kamhon.ieagle.util.CollectionUtil;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.ActionProxy;
import com.opensymphony.xwork2.interceptor.Interceptor;

@SuppressWarnings("serial")
public class LoggerInterceptor implements Interceptor {
    private static final Log log = LogFactory.getLog(LoggerInterceptor.class);

    private static ExceptionLoggingBundle exceptionLoggingBundle;

    public void destroy() {
        log.debug("call LoggerInterceptor.destroy()");
    }

    public void init() {
        log.debug("call LoggerInterceptor.init()");
    }

    public String intercept(ActionInvocation actionInvocation) throws Exception {
        Map<String, Object> params = actionInvocation.getInvocationContext().getParameters();

        if (actionInvocation.getAction() instanceof Action) {
            Action action = (Action) actionInvocation.getAction();
            log.debug("action = " + action.getClass().getName());
        }
        ActionProxy actionProxy = actionInvocation.getProxy();
        String actionType = params.get("actionType") != null ? ((String[]) params.get("actionType"))[0] : null;
        log.debug("action detail(name, method, type) = [" + actionProxy.getActionName() + ", "
                + actionProxy.getMethod() + ", " + actionType + "]");

        log.debug("params = " + CollectionUtil.toLog(params));

        try {
            return actionInvocation.invoke();
        } catch (Exception ex) {
            if (exceptionLoggingBundle == null) {
                exceptionLoggingBundle = (ExceptionLoggingBundle) Application
                        .lookupBean(ExceptionLoggingBundle.BEAN_NAME);
            }

            if (exceptionLoggingBundle.isNeedToLog(ex)) {
                log.error(ex, ex.fillInStackTrace());
            }

            if (ex instanceof NullPointerException) {
                throw new DataException(ex.toString());
            } else {
                throw ex;
            }
        }
    }
}