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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* Licensed 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.openecomp.appc.tools.generator.impl;
import org.openecomp.appc.tools.generator.api.ContextBuilder;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
import java.io.IOException;
import java.io.Writer;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Map;
public class ModelGenerator {
public void execute(String sourceFile, String destinationFile, String templateFile, String builderName, String contextConfName) throws IOException, ReflectiveOperationException {
ContextBuilder contextBuilder = (ContextBuilder) Class.forName(builderName).newInstance();
Map<String, Object> context = contextBuilder.buildContext(sourceFile, contextConfName);
Path destinationPath = Paths.get(destinationFile);
if (!Files.isDirectory(destinationPath))
Files.createDirectories(destinationPath.getParent());
else {
Files.createDirectories(destinationPath);
}
this.generate(context, templateFile, destinationFile);
System.out.println("\tFile <" + destinationFile + "> prepared successfully");
}
private void generate(Map<String, Object> context, String templateFile, String destinationFile) throws ReflectiveOperationException {
try {
Configuration cfg = new Configuration(Configuration.VERSION_2_3_23);
cfg.setClassForTemplateLoading(ModelGenerator.class, "/");
Template template = cfg.getTemplate(templateFile);
Writer out = new CodeGenWriter(destinationFile);
template.process(context, out);
out.close();
} catch (IOException | TemplateException e) {
throw new RuntimeException("Failed to generate file from template <" + templateFile + ">", e);
}
}
}
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