com.siberhus.web.ckeditor.servlet.BaseActionServlet.java Source code

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Here is the source code for com.siberhus.web.ckeditor.servlet.BaseActionServlet.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.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 *
 */
package com.siberhus.web.ckeditor.servlet;

import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Enumeration;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * 
 * @author Hussachai Puripunpinyo (http://www.siberhus.com)
 * 
 */
public class BaseActionServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    private Logger log = LoggerFactory.getLogger(BaseActionServlet.class);

    @Override
    protected void service(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String requestURI = request.getRequestURI();
        if (requestURI != null && requestURI.lastIndexOf("/") != -1) {
            String actionName = requestURI.substring(requestURI.lastIndexOf("/") + 1, requestURI.length());
            int paramIdx = actionName.indexOf("?");
            if (paramIdx != -1) {
                actionName = actionName.substring(0, actionName.indexOf("?"));
            }
            Method method = null;
            try {
                method = this.getClass().getMethod(actionName, HttpServletRequest.class, HttpServletResponse.class);
            } catch (Exception e) {
                e.printStackTrace();
                response.sendError(HttpServletResponse.SC_NOT_FOUND,
                        "Action=" + actionName + " not found for servlet=" + this.getClass());
                return;
            }
            try {
                boolean isMultipart = ServletFileUpload.isMultipartContent(request);
                if (isMultipart) {
                    request = new MultipartServletRequest(request);
                    log.debug("Files *********************");
                    MultipartServletRequest mrequest = (MultipartServletRequest) request;
                    for (FileItem fileItem : mrequest.getFileItems()) {
                        log.debug("File[fieldName={}, fileName={}, fileSize={}]",
                                new Object[] { fileItem.getFieldName(), fileItem.getName(), fileItem.getSize() });
                    }
                }
                if (log.isDebugEnabled()) {
                    log.debug("Parameters **************************");
                    Enumeration<String> paramNames = request.getParameterNames();
                    while (paramNames.hasMoreElements()) {
                        String paramName = paramNames.nextElement();
                        log.debug("Param[name={},value(s)={}]",
                                new Object[] { paramName, Arrays.toString(request.getParameterValues(paramName)) });
                    }
                }

                Object result = method.invoke(this, request, response);

                if (result instanceof StreamingResult) {
                    if (!response.isCommitted()) {
                        ((StreamingResult) result).execute(request, response);
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
                if (e instanceof InvocationTargetException) {
                    throw new ServletException(((InvocationTargetException) e).getTargetException());
                }
                throw new ServletException(e);
            }
        }
    }

}