| /* |
| * 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.freemarker.generator; |
| |
| import java.io.File; |
| import java.io.InputStream; |
| import java.nio.file.Files; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| |
| import org.apache.maven.execution.MavenSession; |
| import org.apache.maven.plugin.AbstractMojo; |
| import org.apache.maven.plugin.MojoExecution; |
| import org.apache.maven.plugin.MojoExecutionException; |
| import org.apache.maven.plugin.MojoFailureException; |
| import org.apache.maven.plugins.annotations.LifecyclePhase; |
| import org.apache.maven.plugins.annotations.Mojo; |
| import org.apache.maven.plugins.annotations.Parameter; |
| |
| import freemarker.cache.FileTemplateLoader; |
| import freemarker.template.Configuration; |
| |
| @Mojo(name = "generate", defaultPhase = LifecyclePhase.GENERATE_SOURCES) |
| public class FreeMarkerMojo extends AbstractMojo { |
| |
| /** FreeMarker version string used to build FreeMarker Configuration instance. */ |
| @Parameter |
| private String freeMarkerVersion; |
| |
| @Parameter(defaultValue = "src/main/freemarker/generator") |
| private File sourceDirectory; |
| |
| @Parameter(defaultValue = "src/main/freemarker/generator/template") |
| private File templateDirectory; |
| |
| @Parameter(defaultValue = "src/main/freemarker/generator/generator") |
| private File generatorDirectory; |
| |
| @Parameter(defaultValue = "target/generated-sources/freemarker/generator") |
| private File outputDirectory; |
| |
| @Parameter(defaultValue = "${session}", readonly = true) |
| private MavenSession session; |
| |
| @Parameter(defaultValue = "${mojoExecution}", readonly = true) |
| private MojoExecution mojo; |
| |
| @Override |
| public void execute() throws MojoExecutionException, MojoFailureException { |
| |
| if (freeMarkerVersion == null || freeMarkerVersion.length() == 0) { |
| throw new MojoExecutionException("freeMarkerVersion is required"); |
| } |
| |
| if (!generatorDirectory.isDirectory()) { |
| throw new MojoExecutionException("Required directory does not exist: " + generatorDirectory); |
| } |
| |
| Configuration config = FactoryUtil.createConfiguration(freeMarkerVersion); |
| |
| config.setDefaultEncoding("UTF-8"); |
| |
| if (!templateDirectory.isDirectory()) { |
| throw new MojoExecutionException("Required directory does not exist: " + templateDirectory); |
| } |
| try { |
| config.setTemplateLoader(new FileTemplateLoader(templateDirectory)); |
| } catch (Throwable t) { |
| getLog().error("Could not establish file template loader for directory: " + templateDirectory, t); |
| throw new MojoExecutionException("Could not establish file template loader for directory: " + templateDirectory); |
| } |
| |
| File freeMarkerProps = FactoryUtil.createFile(sourceDirectory, "freemarker.properties"); |
| if (freeMarkerProps.isFile()) { |
| Properties configProperties = new Properties(); |
| try (InputStream is = FactoryUtil.createFileInputStream(freeMarkerProps)) { |
| configProperties.load(is); |
| } catch (Throwable t) { |
| getLog().error("Failed to load " + freeMarkerProps, t); |
| throw new MojoExecutionException("Failed to load " + freeMarkerProps); |
| } |
| try { |
| config.setSettings(configProperties); |
| } catch (Throwable t) { |
| getLog().error("Invalid setting(s) in " + freeMarkerProps, t); |
| throw new MojoExecutionException("Invalid setting(s) in " + freeMarkerProps); |
| } |
| } |
| |
| if ("generate-sources".equals(mojo.getLifecyclePhase())) { |
| session.getCurrentProject().addCompileSourceRoot(outputDirectory.toString()); |
| } else if ("generate-test-sources".equals(mojo.getLifecyclePhase())) { |
| session.getCurrentProject().addTestCompileSourceRoot(outputDirectory.toString()); |
| } |
| |
| Map<String, OutputGeneratorPropertiesProvider> extensionToBuilders = new HashMap<>(1); |
| extensionToBuilders.put(".json", JsonPropertiesProvider.create(generatorDirectory,templateDirectory,outputDirectory)); |
| |
| GeneratingFileVisitor fileVisitor = GeneratingFileVisitor.create(config, session, extensionToBuilders); |
| try { |
| Files.walkFileTree(generatorDirectory.toPath(), fileVisitor); |
| } catch (Throwable t) { |
| getLog().error("Failed to process files in generator dir: " + generatorDirectory, t); |
| throw new MojoExecutionException("Failed to process files in generator dir: " + generatorDirectory); |
| } |
| } |
| } |