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com.github.dennisit.vplus.data.utils.AssetsUtils Maven / Gradle / Ivy
/*--------------------------------------------------------------------------
* Copyright (c) 2009-2020, www.wuyushuo.com All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* Neither the name of the wuyushuo developer nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* Author: [email protected] (tencent qq: 2094998377)
*--------------------------------------------------------------------------
*/
package com.github.dennisit.vplus.data.utils;
import com.yahoo.platform.yui.compressor.CssCompressor;
import com.yahoo.platform.yui.compressor.JavaScriptCompressor;
import org.apache.commons.io.IOUtils;
import org.mozilla.javascript.ErrorReporter;
import org.mozilla.javascript.EvaluatorException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.*;
import java.util.ArrayList;
public class AssetsUtils {
private static final Logger LOG = LoggerFactory.getLogger(AssetsUtils.class);
private static final String JS_EXT = ".js";
private static final String JS_MIN_EXT = ".min.js";
private static final String CSS_EXT = ".css";
private static final String CSS_MIN_EXT = ".min.css";
private static final String CHARSET = "UTF-8";
public static void removeMinFiles(ArrayList files) {
if (!(files instanceof ArrayList)) {
return;
}
String fileString = null;
for (int i = 0; i < files.size(); i++) {
File file = files.get(i);
fileString = file.toString().toLowerCase();
if (fileString.endsWith(JS_MIN_EXT) || fileString.endsWith(CSS_MIN_EXT)) {
System.out.println("delete file:" + fileString);
file.delete();
}
}
}
public static void buildMinFiles(ArrayList files) {
if (!(files instanceof ArrayList)) {
return;
}
for (int i = 0; i < files.size(); i++) {
File file = files.get(i);
if (isJsFile(file.toString())) {
String inFilePath = file.toString();
String outFilePath = inFilePath.substring(0, inFilePath.length() - JS_EXT.length()).concat(JS_MIN_EXT);
LOG.debug("js:{}", outFilePath);
compressJs(file, outFilePath, CHARSET);
}
if (isCssFile(file.toString())) {
String inFilePath = file.toString();
String outFilePath = inFilePath.substring(0, inFilePath.length() - CSS_EXT.length()).concat(CSS_MIN_EXT);
compressCss(file, outFilePath, CHARSET);
}
}
}
public static boolean isJsFile(String filename) {
if (StringUtils.isBlank(filename)) {
return false;
}
filename = filename.toLowerCase();
return filename.endsWith(JS_EXT) && !filename.endsWith(JS_MIN_EXT);
}
public static boolean isCssFile(String filename) {
if (StringUtils.isBlank(filename)) {
return false;
}
filename = filename.toLowerCase();
return filename.endsWith(CSS_EXT) && !filename.endsWith(CSS_MIN_EXT);
}
public static void compressCss(File inFilePath, String outFilePath, String charset) {
LOG.debug("css:{}", outFilePath);
Reader file_in = null;
Writer file_out = null;
try {
file_in = new InputStreamReader(new FileInputStream(inFilePath), charset);
CssCompressor compressor = new CssCompressor(file_in);
file_in.close();
file_out = new OutputStreamWriter(new FileOutputStream(outFilePath), charset);
compressor.compress(file_out, -1);
file_out.close();
} catch (Exception e) {
LOG.error(e.getLocalizedMessage(), e);
} finally {
IOUtils.closeQuietly(file_in);
IOUtils.closeQuietly(file_out);
}
}
public static void compressJs(File inFilePath, String outFilePath, String charset) {
Reader file_in = null;
Writer file_out = null;
try {
file_in = new InputStreamReader(new FileInputStream(inFilePath), charset);
JavaScriptCompressor compressor = new JavaScriptCompressor(file_in, new ErrorReporter() {
public void warning(String message, String sourceName, int line, String lineSource, int lineOffset) {
if (line < 0) {
LOG.error("\n[WARNING] " + message);
} else {
LOG.error("\n[WARNING] " + line + ':' + lineOffset + ':' + message);
}
}
public void error(String message, String sourceName, int line, String lineSource, int lineOffset) {
if (line < 0) {
LOG.error("\n[ERROR] " + message);
} else {
LOG.error("\n[ERROR] " + line + ':' + lineOffset + ':' + message);
}
}
public EvaluatorException runtimeError(String message, String sourceName, int line, String lineSource, int lineOffset) {
error(message, sourceName, line, lineSource, lineOffset);
return new EvaluatorException(message);
}
});
file_out = new OutputStreamWriter(new FileOutputStream(outFilePath), charset);
compressor.compress(file_out, -1, true, false, false, false);
file_in.close();
file_out.flush();
file_out.close();
} catch (Exception e) {
LOG.error(e.getLocalizedMessage(), e);
} finally {
IOUtils.closeQuietly(file_in);
IOUtils.closeQuietly(file_out);
}
}
public static ArrayList getListFiles(Object obj) {
File directory = null;
if (obj instanceof File) {
directory = (File) obj;
} else {
directory = new File(obj.toString());
}
ArrayList files = new ArrayList();
if (directory.isFile()) {
files.add(directory);
return files;
} else if (directory.isDirectory()) {
File[] fileArr = directory.listFiles();
for (int i = 0; i < fileArr.length; i++) {
File fileOne = fileArr[i];
files.addAll(getListFiles(fileOne));
}
}
return files;
}
}
