2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.openecomp.appc.tools.generator.impl;
27 import org.openecomp.appc.tools.generator.api.ContextBuilder;
28 import freemarker.template.Configuration;
29 import freemarker.template.Template;
30 import freemarker.template.TemplateException;
32 import java.io.IOException;
33 import java.io.Writer;
34 import java.nio.file.Files;
35 import java.nio.file.Path;
36 import java.nio.file.Paths;
39 public class ModelGenerator {
41 public void execute(String sourceFile, String destinationFile, String templateFile, String builderName, String contextConfName) throws IOException, ReflectiveOperationException {
43 ContextBuilder contextBuilder = (ContextBuilder) Class.forName(builderName).newInstance();
44 Map<String, Object> context = contextBuilder.buildContext(sourceFile, contextConfName);
46 Path destinationPath = Paths.get(destinationFile);
47 if (!Files.isDirectory(destinationPath))
48 Files.createDirectories(destinationPath.getParent());
50 Files.createDirectories(destinationPath);
53 this.generate(context, templateFile, destinationFile);
54 System.out.println("\tFile <" + destinationFile + "> prepared successfully");
57 private void generate(Map<String, Object> context, String templateFile, String destinationFile) throws ReflectiveOperationException {
59 Configuration cfg = new Configuration(Configuration.VERSION_2_3_23);
60 cfg.setClassForTemplateLoading(ModelGenerator.class, "/");
61 Template template = cfg.getTemplate(templateFile);
63 Writer out = new CodeGenWriter(destinationFile);
64 template.process(context, out);
66 } catch (IOException | TemplateException e) {
67 throw new RuntimeException("Failed to generate file from template <" + templateFile + ">", e);