| /* |
| * 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.cli.config; |
| |
| import org.apache.freemarker.generator.base.FreeMarkerConstants.Location; |
| import org.apache.freemarker.generator.base.datasource.DataSource; |
| import org.apache.freemarker.generator.base.datasource.DataSourceFactory; |
| import org.apache.freemarker.generator.base.datasource.DataSourcesSupplier; |
| import org.apache.freemarker.generator.base.output.OutputGenerator; |
| import org.apache.freemarker.generator.base.template.TemplateTransformation; |
| import org.apache.freemarker.generator.base.template.TemplateTransformationsBuilder; |
| import org.apache.freemarker.generator.base.util.UriUtils; |
| import org.apache.freemarker.generator.cli.picocli.OutputGeneratorDefinition; |
| import org.apache.freemarker.generator.cli.picocli.TemplateOutputDefinition; |
| import org.apache.freemarker.generator.cli.picocli.TemplateSourceDefinition; |
| |
| import java.net.URI; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.function.Supplier; |
| import java.util.stream.Collectors; |
| |
| import static java.nio.charset.StandardCharsets.UTF_8; |
| import static java.util.Objects.requireNonNull; |
| import static org.apache.freemarker.generator.base.FreeMarkerConstants.DEFAULT_GROUP; |
| import static org.apache.freemarker.generator.base.FreeMarkerConstants.Location.STDIN; |
| import static org.apache.freemarker.generator.base.mime.Mimetypes.MIME_TEXT_PLAIN; |
| |
| public class OutputGeneratorsSupplier implements Supplier<List<OutputGenerator>> { |
| |
| private final Settings settings; |
| |
| public OutputGeneratorsSupplier(Settings settings) { |
| this.settings = settings; |
| } |
| |
| @Override |
| public List<OutputGenerator> get() { |
| return settings.getOutputGeneratorDefinitions().stream() |
| .map(this::outputGenerator) |
| .flatMap(Collection::stream) |
| .collect(Collectors.toList()); |
| } |
| |
| private List<OutputGenerator> outputGenerator(OutputGeneratorDefinition definition) { |
| final List<OutputGenerator> result = new ArrayList<>(); |
| final TemplateSourceDefinition templateSourceDefinition = requireNonNull(definition.getTemplateSourceDefinition()); |
| final TemplateOutputDefinition templateOutputDefinition = definition.getTemplateOutputDefinition(); |
| final TemplateTransformationsBuilder builder = TemplateTransformationsBuilder.builder(); |
| |
| // set the template |
| if (templateSourceDefinition.isInteractiveTemplate()) { |
| builder.setInteractiveTemplate(templateSourceDefinition.interactiveTemplate); |
| } else { |
| builder.setTemplateSource(templateSourceDefinition.template); |
| } |
| |
| // set encoding of loaded templates |
| builder.setTemplateEncoding(settings.getTemplateEncoding()); |
| |
| // set the writer |
| builder.setCallerSuppliedWriter(settings.getCallerSuppliedWriter()); |
| |
| // set template output |
| if (templateOutputDefinition != null && templateOutputDefinition.hasOutput()) { |
| builder.setOutput(templateOutputDefinition.outputs.get(0)); |
| } |
| |
| // set the output encoding |
| builder.setOutputEncoding(settings.getOutputEncoding()); |
| |
| // set template filter |
| if (definition.hasTemplateSourceIncludes()) { |
| builder.addInclude(definition.getTemplateSourceFilterDefinition().templateIncludePatterns.get(0)); |
| } |
| |
| if (definition.hasTemplateSourceExcludes()) { |
| builder.addExclude(definition.getTemplateSourceFilterDefinition().templateExcludePatterns.get(0)); |
| } |
| |
| final List<TemplateTransformation> templateTransformations = builder.build(); |
| |
| for (TemplateTransformation templateTransformation : templateTransformations) { |
| final OutputGenerator outputGenerator = new OutputGenerator( |
| templateTransformation.getTemplateSource(), |
| templateTransformation.getTemplateOutput(), |
| dataSources(settings, definition), |
| dataModels(definition) |
| ); |
| result.add(outputGenerator); |
| } |
| |
| return result; |
| } |
| |
| private List<DataSource> dataSources(Settings settings, OutputGeneratorDefinition outputGeneratorDefinition) { |
| final ArrayList<DataSource> result = new ArrayList<>(); |
| |
| // Add optional data source from STDIN at the start of the list since |
| // this allows easy sequence slicing in FreeMarker. |
| if (settings.isReadFromStdin()) { |
| result.add(0, stdinDataSource()); |
| } |
| |
| final DataSourcesSupplier outputGeneratorDataSourcesSupplier = new DataSourcesSupplier( |
| outputGeneratorDefinition.getDataSources(), |
| settings.getSourceIncludePattern(), |
| settings.getSourceExcludePattern(), |
| settings.getInputEncoding() |
| ); |
| |
| result.addAll(outputGeneratorDataSourcesSupplier.get()); |
| |
| return result; |
| } |
| |
| private Map<String, Object> dataModels(OutputGeneratorDefinition outputGeneratorDefinition) { |
| return new DataModelSupplier(outputGeneratorDefinition.getDataModels()).get(); |
| } |
| |
| private static DataSource stdinDataSource() { |
| final URI uri = UriUtils.toUri(Location.SYSTEM, STDIN); |
| return DataSourceFactory.fromInputStream(STDIN, DEFAULT_GROUP, uri, System.in, MIME_TEXT_PLAIN, UTF_8); |
| } |
| } |