| /* |
| * 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.johnzon.maven.plugin; |
| |
| import org.apache.johnzon.jsonschema.generator.PojoGenerator; |
| import org.apache.maven.plugin.AbstractMojo; |
| import org.apache.maven.plugins.annotations.Mojo; |
| import org.apache.maven.plugins.annotations.Parameter; |
| |
| import javax.json.Json; |
| import javax.json.JsonObject; |
| import javax.json.JsonReader; |
| import javax.json.JsonReaderFactory; |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.SimpleFileVisitor; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static java.util.Collections.emptyMap; |
| import static java.util.Comparator.comparing; |
| import static java.util.stream.Collectors.toList; |
| import static org.apache.maven.plugins.annotations.LifecyclePhase.GENERATE_SOURCES; |
| |
| /** |
| * Generates mojo bindings from json schema specification(s). |
| */ |
| @Mojo(name = "jsonschema2pojo", defaultPhase = GENERATE_SOURCES) |
| public class JsonSchemaToPojoMojo extends AbstractMojo { |
| /** |
| * Generation configuration. |
| * Note that if source is a directory, class name is ignored and auto set from schema name. |
| */ |
| @Parameter |
| private PojoGenerator.PojoConfiguration generator; |
| |
| /** |
| * Extensions to consider if source is a directory. |
| */ |
| @Parameter(property = "johnzon.jsonschema.extensions", defaultValue = ".jsonschema.json") |
| private List<String> jsonSchemaExtensions; |
| |
| /** |
| * Source jsonschema or directory containing json schemas. |
| */ |
| @Parameter(property = "johnzon.source", defaultValue = "${project.basedir}/src/main/johnzon/jsonschema") |
| private File source; |
| |
| /** |
| * Where to dump generated classes. |
| */ |
| @Parameter(property = "johnzon.target", defaultValue = "${project.build.directory}/generated-sources/johnzon-pojo") |
| private File target; |
| |
| @Override |
| public void execute() { |
| final JsonReaderFactory readerFactory = Json.createReaderFactory(emptyMap()); |
| if (source.isDirectory()) { |
| try { |
| Files.walkFileTree(source.toPath(), new SimpleFileVisitor<Path>() { |
| @Override |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException { |
| final String name = file.getFileName().toString(); |
| final List<String> matchingExt = jsonSchemaExtensions.stream() |
| .filter(name::endsWith) |
| .sorted(comparing(String::length).reversed()) |
| .collect(toList()); |
| if (matchingExt.size() >= 1) { |
| final PojoGenerator.PojoConfiguration conf = generator == null ? new PojoGenerator.PojoConfiguration() : generator; |
| conf.setClassName(name.substring(0, name.length() - matchingExt.get(0).length())); |
| dump(new PojoGenerator(conf) |
| .visitSchema(read(readerFactory, source.toPath())) |
| .generate()); |
| } |
| return super.visitFile(file, attrs); |
| } |
| }); |
| } catch (final IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } else { |
| dump(new PojoGenerator(generator == null ? new PojoGenerator.PojoConfiguration() : generator) |
| .visitSchema(read(readerFactory, source.toPath())) |
| .generate()); |
| } |
| } |
| |
| private JsonObject read(final JsonReaderFactory readerFactory, final Path path) { |
| try (final JsonReader reader = readerFactory.createReader(Files.newBufferedReader(path))) { |
| return reader.readObject(); |
| } catch (final IOException e) { |
| throw new IllegalStateException(e); |
| } |
| } |
| |
| private void dump(final Map<String, String> generate) { |
| final Path root = target.toPath(); |
| try { |
| for (final Map.Entry<String, String> entry : generate.entrySet()) { |
| final Path out = root.resolve(entry.getKey()); |
| Files.createDirectories(out.getParent()); |
| Files.write(out, entry.getValue().getBytes(StandardCharsets.UTF_8)); |
| } |
| } catch (final IOException ioe) { |
| throw new IllegalStateException(ioe); |
| } |
| } |
| } |