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

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Here is the source code for net.kamhon.ieagle.struts2.interceptor.JasperReportInterceptor.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.io.File;
import java.util.Map;

import net.kamhon.ieagle.application.Application;
import net.kamhon.ieagle.application.ServerConfiguration;
import net.sf.jasperreports.engine.JasperCompileManager;

import org.apache.commons.lang.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts2.ServletActionContext;

import com.opensymphony.xwork2.Action;
import com.opensymphony.xwork2.ActionInvocation;
import com.opensymphony.xwork2.ActionProxy;
import com.opensymphony.xwork2.config.entities.ResultConfig;
import com.opensymphony.xwork2.interceptor.Interceptor;

public class JasperReportInterceptor implements Interceptor {
    private static final long serialVersionUID = 1L;

    private static final Log log = LogFactory.getLog(JasperReportInterceptor.class);

    private static final boolean IS_PRODUCTION_MODE;

    static {
        IS_PRODUCTION_MODE = ((ServerConfiguration) Application.lookupBean(ServerConfiguration.BEAN_NAME))
                .isProductionMode();
    }

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

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

    public String intercept(ActionInvocation actionInvocation) throws Exception {
        File reportFile;
        String jasperPath = "";
        String path = "";

        // HttpServletRequest req = ServletActionContext.getRequest();
        // path = req.getRealPath("/");
        path = ServletActionContext.getServletContext().getRealPath("/");

        if (actionInvocation.getAction() instanceof Action) {
            Action action = (Action) actionInvocation.getAction();
            log.debug("action = " + action);
        }

        ActionProxy actionProxy = actionInvocation.getProxy();
        log.debug("actionName() = " + actionProxy.getActionName());

        if (!IS_PRODUCTION_MODE) {
            // Get Jasper Report Location
            if (actionProxy != null) {
                Map<String, ResultConfig> results = actionProxy.getConfig().getResults();
                for (ResultConfig config : results.values()) {
                    if (config != null) {
                        Map<String, String> param = config.getParams();
                        if (StringUtils.isNotBlank(param.get("location"))) {
                            if (StringUtils.contains(param.get("location"), "jasper")) {
                                jasperPath = param.get("location");
                                log.debug("Jasper Path = " + jasperPath);
                                break;
                            }
                        }
                    }
                }
            }

            // Compile Jasper Report
            if (StringUtils.isNotBlank(jasperPath)) {
                jasperPath = path + jasperPath;
                jasperPath = StringUtils.replace(jasperPath, "/", File.separator);

                reportFile = new File(jasperPath);
                if (reportFile.exists()) {
                    reportFile.delete();
                }

                log.debug("Compile Jasper Report");
                try {
                    jasperPath = StringUtils.replace(jasperPath, ".jasper", ".jrxml");
                    JasperCompileManager.compileReportToFile(jasperPath);
                } catch (Exception e) {
                    e.printStackTrace();
                }

            }
        }

        return actionInvocation.invoke();
    }

}