jp.tricreo.codegenerator.service.impl.CodeGenStrategyForFreeMarker.java Source code

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Here is the source code for jp.tricreo.codegenerator.service.impl.CodeGenStrategyForFreeMarker.java

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/*
 * Copyright 2010 TRICREO, Inc. (http://tricreo.jp/)
 *
 * 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 jp.tricreo.codegenerator.service.impl;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import jp.tricreo.codegenerator.CodeGenContext;
import jp.tricreo.codegenerator.model.ClassMetaModel;
import jp.tricreo.codegenerator.service.CodeGenStrategy;
import freemarker.template.Configuration;
import freemarker.template.Template;
import freemarker.template.TemplateException;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.Validate;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * FreeMarker????{@link CodeGenStrategy}?
 * 
 * @author j5ik2o
 */
public class CodeGenStrategyForFreeMarker extends AbstractCodeGenStrategy {

    private static final Logger LOGGER = LoggerFactory.getLogger(CodeGenStrategyForFreeMarker.class);

    private static final String TEMPLATE_FILENAME = "java.ftl";

    private static final String GENERATE_FILE_EXT = "java";

    @Override
    public void generate(CodeGenContext codeGenContext) throws CodeGenException {
        Validate.notNull(codeGenContext);
        File templateDirFile = codeGenContext.getTemplateDir();
        Configuration cfg = new Configuration();
        try {
            cfg.setDirectoryForTemplateLoading(templateDirFile);
            Template template = cfg.getTemplate(TEMPLATE_FILENAME);

            for (ClassMetaModel classMetaModel : codeGenContext.getClassMetaModels()) {
                FileWriter fw = null;
                try {
                    Map<String, Object> rootMap = new HashMap<String, Object>();
                    rootMap.put("classMetaModel", classMetaModel);

                    File exportClassDir = getExportClassDir(codeGenContext, classMetaModel);
                    exportClassDir.mkdirs();

                    fw = new FileWriter(
                            new File(exportClassDir, classMetaModel.getClassName() + "." + GENERATE_FILE_EXT));
                    template.process(rootMap, fw);
                    fw.flush();
                    LOGGER.info("????? : {}", classMetaModel.getClassName());
                } catch (TemplateException ex) {
                    throw new CodeGenException(ex);
                } finally {
                    IOUtils.closeQuietly(fw);
                    /* IOUtils#closeQuietly???????
                    try {
                        if (fw != null) {
                            fw.close();
                        }
                    } catch (IOException ioe) {
                        // ignore
                    }
                    */
                }
            }
        } catch (IOException ex) {
            throw new CodeGenException(ex);
        }
    }
}