| /* |
| * 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.apache.camel.component.schematron.processor; |
| |
| import java.io.InputStream; |
| |
| import javax.xml.transform.Source; |
| import javax.xml.transform.Templates; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.dom.DOMResult; |
| import javax.xml.transform.dom.DOMSource; |
| import javax.xml.transform.stream.StreamSource; |
| |
| import org.w3c.dom.Node; |
| |
| import org.apache.camel.component.schematron.constant.Constants; |
| import org.apache.camel.component.schematron.exception.SchematronConfigException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Class generating Templates for a given schematron rules |
| */ |
| public final class TemplatesFactory { |
| |
| |
| private static final TemplatesFactory INSTANCE = new TemplatesFactory(); |
| private static final String[] PIPELINE = new String[]{"iso_dsdl_include.xsl", "iso_abstract_expand.xsl", "iso_svrl_for_xslt2.xsl"}; |
| private Logger logger = LoggerFactory.getLogger(TemplatesFactory.class); |
| |
| /** |
| * Singleton constructor; |
| * |
| * @return |
| */ |
| public static TemplatesFactory newInstance() { |
| |
| return INSTANCE; |
| } |
| |
| /** |
| * Generate the schematron template for given rule. |
| * |
| * @param rules the schematron rules |
| * @param fac the transformer factory. |
| * @return schematron template. |
| */ |
| public Templates getTemplates(final InputStream rules, final TransformerFactory fac) { |
| |
| Node node = null; |
| Source source = new StreamSource(rules); |
| try { |
| for (String template : PIPELINE) { |
| String path = Constants.SCHEMATRON_TEMPLATES_ROOT_DIR |
| .concat("/").concat(template); |
| InputStream xsl = this.getClass().getClassLoader().getResourceAsStream(path); |
| Transformer t = fac.newTransformer(new StreamSource(xsl)); |
| DOMResult result = new DOMResult(); |
| t.transform(source, result); |
| source = new DOMSource(node = result.getNode()); |
| } |
| return fac.newTemplates(new DOMSource(node)); |
| } catch (Exception e) { |
| logger.error(e.getMessage(), e); |
| throw new SchematronConfigException(e); |
| } |
| } |
| } |