com.github.robozonky.installer.panels.scripts.TemplateProcessor Maven / Gradle / Ivy
/*
* Copyright 2017 The RoboZonky Project
*
* 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.
*/
package com.github.robozonky.installer.panels.scripts;
import java.io.IOException;
import java.io.StringWriter;
import java.util.Collections;
import java.util.Map;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;
enum TemplateProcessor {
INSTANCE;
private final Configuration config = TemplateProcessor.getFreemarkerConfiguration();
static Configuration getFreemarkerConfiguration() {
final Configuration cfg = new Configuration(Configuration.VERSION_2_3_27);
cfg.setClassForTemplateLoading(TemplateProcessor.class, "");
cfg.setLogTemplateExceptions(false);
return cfg;
}
public String process(final String templateFile,
final Map data) throws IOException, TemplateException {
final Template template = this.config.getTemplate(templateFile);
final StringWriter sw = new StringWriter();
template.process(Collections.singletonMap("data", data), sw);
return sw.toString().trim();
}
}