| /* |
| * Copyright 2004 Outerthought bvba and Schaubroeck nv |
| * |
| * 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 org.apache.cocoon.forms.datatype.convertor; |
| |
| import org.apache.cocoon.forms.datatype.convertor.ConvertorBuilder; |
| import org.apache.cocoon.forms.datatype.convertor.Convertor; |
| import org.apache.cocoon.forms.util.DomHelper; |
| import org.apache.cocoon.forms.CacheManager; |
| import org.apache.cocoon.components.source.SourceUtil; |
| import org.apache.avalon.framework.service.Serviceable; |
| import org.apache.avalon.framework.service.ServiceManager; |
| import org.apache.avalon.framework.service.ServiceException; |
| import org.apache.excalibur.source.SourceResolver; |
| import org.apache.excalibur.source.Source; |
| import org.w3c.dom.Element; |
| import org.outerj.daisy.htmlcleaner.HtmlCleanerTemplate; |
| import org.outerj.daisy.htmlcleaner.HtmlCleanerFactory; |
| import org.xml.sax.InputSource; |
| |
| /** |
| * Builds {@link HtmlCleaningConvertor}s. |
| */ |
| public class HtmlCleaningConvertorBuilder implements ConvertorBuilder, Serviceable { |
| private ServiceManager serviceManager; |
| |
| public void service(ServiceManager serviceManager) throws ServiceException { |
| this.serviceManager = serviceManager; |
| } |
| |
| public Convertor build(Element element) throws Exception { |
| String config = DomHelper.getAttribute(element, "config"); |
| |
| Source source = null; |
| SourceResolver sourceResolver = null; |
| CacheManager cacheManager = null; |
| try { |
| cacheManager = (CacheManager)serviceManager.lookup(CacheManager.ROLE); |
| sourceResolver = (SourceResolver)serviceManager.lookup(SourceResolver.ROLE); |
| source = sourceResolver.resolveURI(config); |
| |
| String prefix = HtmlCleanerTemplate.class.getName(); |
| HtmlCleanerTemplate template = (HtmlCleanerTemplate)cacheManager.get(source, prefix); |
| if (template == null) { |
| HtmlCleanerFactory factory = new HtmlCleanerFactory(); |
| InputSource is = SourceUtil.getInputSource(source); |
| template = factory.buildTemplate(is); |
| cacheManager.set(template, source, prefix); |
| } |
| |
| return new HtmlCleaningConvertor(template); |
| } finally { |
| if (source != null) |
| sourceResolver.release(source); |
| if (sourceResolver != null) |
| serviceManager.release(sourceResolver); |
| if (cacheManager != null) |
| serviceManager.release(cacheManager); |
| } |
| } |
| } |