| /******************************************************************************* |
| * 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. |
| *******************************************************************************/ |
| package org.ofbiz.webtools.print; |
| |
| import java.util.Map; |
| import java.util.Locale; |
| import java.io.IOException; |
| import java.io.Writer; |
| import java.io.StringWriter; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.commons.codec.binary.Base64; |
| |
| import org.ofbiz.service.LocalDispatcher; |
| import org.ofbiz.service.DispatchContext; |
| import org.ofbiz.base.util.UtilHttp; |
| import org.ofbiz.base.util.GeneralException; |
| import org.ofbiz.base.util.Debug; |
| import org.ofbiz.base.util.UtilValidate; |
| import org.ofbiz.entity.GenericValue; |
| import org.ofbiz.entity.GenericEntityException; |
| import org.ofbiz.widget.renderer.ScreenRenderer; |
| import org.ofbiz.widget.renderer.html.HtmlScreenRenderer; |
| |
| /** |
| * FoPrintServerEvents |
| */ |
| |
| public class FoPrintServerEvents { |
| |
| public static final String module = FoPrintServerEvents.class.getName(); |
| private static HtmlScreenRenderer htmlScreenRenderer = new HtmlScreenRenderer(); |
| |
| public static String getXslFo(HttpServletRequest req, HttpServletResponse resp) { |
| LocalDispatcher dispatcher = (LocalDispatcher) req.getAttribute("dispatcher"); |
| Map<String, Object> reqParams = UtilHttp.getParameterMap(req); |
| reqParams.put("locale", UtilHttp.getLocale(req)); |
| |
| String screenUri = (String) reqParams.remove("screenUri"); |
| if (UtilValidate.isNotEmpty(screenUri)) { |
| String base64String = null; |
| try { |
| byte[] bytes = FoPrintServerEvents.getXslFo(dispatcher.getDispatchContext(), screenUri, reqParams); |
| base64String = new String(Base64.encodeBase64(bytes)); |
| } catch (GeneralException e) { |
| Debug.logError(e, module); |
| try { |
| resp.sendError(500); |
| } catch (IOException e1) { |
| Debug.logError(e1, module); |
| } |
| } |
| if (base64String != null) { |
| try { |
| Writer out = resp.getWriter(); |
| out.write(base64String); |
| } catch (IOException e) { |
| try { |
| resp.sendError(500); |
| } catch (IOException e1) { |
| Debug.logError(e1, module); |
| } |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| public static byte[] getXslFo(DispatchContext dctx, String screen, Map<String, Object> parameters) throws GeneralException { |
| // run as the system user |
| GenericValue system = null; |
| try { |
| system = dctx.getDelegator().findOne("UserLogin", false, "userLoginId", "system"); |
| } catch (GenericEntityException e) { |
| throw new GeneralException(e.getMessage(), e); |
| } |
| parameters.put("userLogin", system); |
| if (!parameters.containsKey("locale")) { |
| parameters.put("locale", Locale.getDefault()); |
| } |
| |
| // render and obtain the XSL-FO |
| Writer writer = new StringWriter(); |
| try { |
| ScreenRenderer screens = new ScreenRenderer(writer, null, htmlScreenRenderer); |
| screens.populateContextForService(dctx, parameters); |
| screens.render(screen); |
| } catch (Throwable t) { |
| throw new GeneralException("Problems rendering FOP XSL-FO", t); |
| } |
| return writer.toString().getBytes(); |
| } |
| } |