com.feilong.template.extension.TemplateFileDataUtil Maven / Gradle / Ivy

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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.

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/*
 * Copyright (C) 2008 feilong
 *
 * 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.feilong.template.extension;

import static com.feilong.core.CharsetType.UTF8;

import com.feilong.coreextension.awt.DesktopUtil;
import com.feilong.io.FileUtil;
import com.feilong.io.IOWriteUtil;
import com.feilong.core.Validate;
import com.feilong.template.TemplateUtil;

/**
 * The Class TemplateFileDataUtil.
 */
public class TemplateFileDataUtil{

    /** Don't let anyone instantiate this class. */
    private TemplateFileDataUtil(){
        //AssertionError不是必须的. 但它可以避免不小心在类的内部调用构造器. 保证该类在任何情况下都不会被实例化.
        //see 《Effective Java》 2nd
        throw new AssertionError("No " + getClass().getName() + " instances for you!");
    }

    //---------------------------------------------------------------

    /**
     * writeAndOpen.
     * 
     * 
     * 如果 outPutFilePath 是null,抛出 {@link NullPointerException}

     * 如果 outPutFilePath 是blank,抛出 {@link IllegalArgumentException}

     * 
     *
     * @param templateFileData
     *            the velocity file data
     */
    public static void writeAndOpen(TemplateFileData templateFileData){
        String outPutFilePath = templateFileData.getOutPutFilePath();
        Validate.notBlank(outPutFilePath, "outPutFilePath can't be null/empty!");

        String templatePath = templateFileData.getTemplatePath();
        Validate.notBlank(templatePath, "templatePath can't be blank!");

        //---------------------------------------------------------------

        String content = TemplateUtil.parseTemplate(templatePath, templateFileData.getData());
        IOWriteUtil.writeStringToFile(outPutFilePath, content, UTF8);

        DesktopUtil.open(FileUtil.getParent(outPutFilePath));//和输出文件同级目录
        DesktopUtil.open(outPutFilePath);
    }
}