| /* |
| * 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.quarkus.component.xslt.deployment; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.Collections; |
| import java.util.Comparator; |
| import java.util.LinkedHashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerFactory; |
| |
| import io.quarkus.deployment.annotations.BuildProducer; |
| import io.quarkus.deployment.annotations.BuildStep; |
| import io.quarkus.deployment.annotations.ExecutionTime; |
| import io.quarkus.deployment.annotations.Record; |
| import io.quarkus.deployment.builditem.ArchiveRootBuildItem; |
| import io.quarkus.deployment.builditem.GeneratedClassBuildItem; |
| import io.quarkus.runtime.RuntimeValue; |
| import org.apache.camel.component.xslt.XsltComponent; |
| import org.apache.camel.quarkus.component.xslt.CamelXsltConfig; |
| import org.apache.camel.quarkus.component.xslt.CamelXsltErrorListener; |
| import org.apache.camel.quarkus.component.xslt.CamelXsltRecorder; |
| import org.apache.camel.quarkus.component.xslt.RuntimeUriResolver.Builder; |
| import org.apache.camel.quarkus.component.xslt.deployment.BuildTimeUriResolver.ResolutionResult; |
| import org.apache.camel.quarkus.core.deployment.CamelBeanBuildItem; |
| import org.apache.camel.quarkus.core.deployment.CamelServiceFilter; |
| import org.apache.camel.quarkus.core.deployment.CamelServiceFilterBuildItem; |
| import org.apache.camel.quarkus.support.xalan.XalanTransformerFactory; |
| import org.apache.commons.lang3.StringUtils; |
| |
| class XsltProcessor { |
| /* |
| * The xslt component is programmatically configured by the extension thus |
| * we can safely prevent camel to instantiate a default instance. |
| */ |
| @BuildStep |
| CamelServiceFilterBuildItem serviceFilter() { |
| return new CamelServiceFilterBuildItem(CamelServiceFilter.forComponent("xslt")); |
| } |
| |
| @Record(ExecutionTime.STATIC_INIT) |
| @BuildStep |
| CamelBeanBuildItem xsltComponent( |
| CamelXsltRecorder recorder, |
| CamelXsltConfig config, |
| List<UriResolverEntryBuildItem> uriResolverEntries) { |
| |
| final RuntimeValue<Builder> builder = recorder.createRuntimeUriResolverBuilder(); |
| for (UriResolverEntryBuildItem entry : uriResolverEntries) { |
| recorder.addRuntimeUriResolverEntry( |
| builder, |
| entry.getTemplateUri(), |
| entry.getTransletClassName()); |
| } |
| |
| return new CamelBeanBuildItem( |
| "xslt", |
| XsltComponent.class.getName(), |
| recorder.createXsltComponent(config, builder)); |
| } |
| |
| @BuildStep |
| void xsltResources( |
| CamelXsltConfig config, |
| BuildProducer<XsltGeneratedClassBuildItem> generatedNames, |
| BuildProducer<GeneratedClassBuildItem> generatedClasses, |
| BuildProducer<UriResolverEntryBuildItem> uriResolverEntries, |
| ArchiveRootBuildItem archiveRoot) throws Exception { |
| |
| Path destination = Files.createTempDirectory(XsltFeature.FEATURE); |
| final Set<String> translets = new LinkedHashSet<>(); |
| try { |
| final BuildTimeUriResolver resolver = new BuildTimeUriResolver(); |
| for (String uri : config.sources.orElse(Collections.emptyList())) { |
| ResolutionResult resolvedUri = resolver.resolve(uri); |
| uriResolverEntries.produce(resolvedUri.toBuildItem()); |
| final String translet = resolvedUri.transletClassName; |
| if (translets.contains(translet)) { |
| throw new RuntimeException("XSLT translet name clash: cannot add '" + translet |
| + "' to previously added translets " + translets); |
| } |
| try { |
| TransformerFactory tf = new XalanTransformerFactory(); |
| tf.setAttribute("generate-translet", true); |
| tf.setAttribute("translet-name", translet); |
| tf.setAttribute("package-name", config.packageName); |
| tf.setAttribute("destination-directory", destination.toString()); |
| tf.setErrorListener(new CamelXsltErrorListener()); |
| tf.newTemplates(resolvedUri.source); |
| } catch (TransformerException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| Files.walk(destination) |
| .sorted(Comparator.reverseOrder()) |
| .filter(Files::isRegularFile) |
| .filter(path -> path.toString().endsWith(".class")) |
| .forEach(path -> { |
| try { |
| final Path rel = destination.relativize(path); |
| final String fqcn = StringUtils.removeEnd(rel.toString(), ".class").replace('/', '.'); |
| final byte[] data = Files.readAllBytes(path); |
| |
| generatedClasses.produce(new GeneratedClassBuildItem(false, fqcn, data)); |
| generatedNames.produce(new XsltGeneratedClassBuildItem(fqcn)); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| }); |
| } finally { |
| Files.walk(destination) |
| .sorted(Comparator.reverseOrder()) |
| .map(Path::toFile) |
| .forEach(File::delete); |
| } |
| } |
| } |