org.everit.jira.hr.admin.util.LocalizedTemplate.java Source code

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Here is the source code for org.everit.jira.hr.admin.util.LocalizedTemplate.java

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/*
 * Copyright (C) 2011 Everit Kft. (http://www.everit.org)
 *
 * 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 org.everit.jira.hr.admin.util;

import java.io.IOException;
import java.io.UncheckedIOException;
import java.io.Writer;
import java.util.Locale;
import java.util.Map;

import org.apache.commons.io.IOUtils;
import org.everit.expression.ExpressionCompiler;
import org.everit.expression.ParserConfiguration;
import org.everit.expression.jexl.JexlExpressionCompiler;
import org.everit.templating.CompiledTemplate;
import org.everit.templating.TemplateCompiler;
import org.everit.templating.html.HTMLTemplateCompiler;
import org.everit.templating.util.InheritantMap;

public class LocalizedTemplate {

    private static final TemplateCompiler TEMPLATE_COMPILER;

    static {
        ExpressionCompiler expressionCompiler = new JexlExpressionCompiler();
        TEMPLATE_COMPILER = new HTMLTemplateCompiler(expressionCompiler);
    }

    private final String baseName;

    private final ClassLoader classLoader;

    private final CompiledTemplate compiledTemplate;

    public LocalizedTemplate(final String baseName, final ClassLoader classLoader) {
        this.baseName = baseName;
        this.classLoader = classLoader;
        try {
            ParserConfiguration parserConfiguration = new ParserConfiguration(classLoader);
            parserConfiguration.setName(baseName + ".html");
            compiledTemplate = TEMPLATE_COMPILER.compile(
                    IOUtils.toString(classLoader.getResource(baseName + ".html"), "UTF8"), parserConfiguration);
        } catch (IOException e) {
            throw new UncheckedIOException(e);
        }
    }

    public void render(final Writer writer, final Map<String, Object> vars, final Locale locale,
            final String fragmentId) {

        Map<String, Object> localVars = new InheritantMap<>(vars, false);
        ResourceBundleMap messages = TemplatingUtil.getMessages(baseName, classLoader, locale);
        localVars.put("messages", messages);

        compiledTemplate.render(writer, localVars, fragmentId);
    }
}