com.qaprosoft.apitools.builder.MessageBuilder Maven / Gradle / Ivy

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/*******************************************************************************
 * Copyright 2013-2018 QaProSoft (http://www.qaprosoft.com).
 *
 * 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.qaprosoft.apitools.builder;

import java.io.IOException;
import java.io.StringWriter;
import java.util.Properties;

import freemarker.cache.ClassTemplateLoader;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

public class MessageBuilder {

	private static Configuration freemarkerConfiguration;

	static {
		freemarkerConfiguration = new Configuration();
		freemarkerConfiguration.setTemplateLoader(new ClassTemplateLoader(MessageBuilder.class, "/"));
	}

	public final static synchronized String buildStringMessage(String templatePath, Properties... propertiesArr) {
		Template template;
		try {
			template = freemarkerConfiguration.getTemplate(templatePath);
		} catch (IOException e) {
			throw new RuntimeException(e);
		}

		Properties resultProperties = new Properties();
		for (Properties properties : propertiesArr) {
			resultProperties.putAll(properties);
		}

		StringWriter sw = new StringWriter();
		try {
			template.process(resultProperties, sw);
		} catch (TemplateException e) {
			throw new RuntimeException(e);
		} catch (IOException e) {
			throw new RuntimeException(e);
		} finally {
			try {
				sw.close();
			} catch (IOException e) {
				throw new RuntimeException(e);
			}
		}
		return sw.getBuffer().toString();
	}
}