top.hmtools.jsManager.JavascriptManagerDefault Maven / Gradle / Ivy
package top.hmtools.jsManager;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.PostConstruct;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import top.hmtools.autoConfiguration.JsCssAutoConfiguration;
import top.hmtools.base.CharsetGuessTools;
import top.hmtools.base.StringTools;
import top.hmtools.common.CommonTools;
/**
* 缺省的javascript文件管理者
* @author HyboJ
* 创建日期:2017-9-26下午9:42:56
*/
@Component
public class JavascriptManagerDefault implements IJavascriptManager{
protected final Logger logger = LoggerFactory.getLogger(JavascriptManagerDefault.class);
@Autowired
private JsCssAutoConfiguration jsCssAutoConfiguration;
/**
* javascript文件缓存库
*/
private static Map JS_REPERTORY = new HashMap();
private List filePaths = new ArrayList<>();
private String encoding = "UTF-8";
@Override
@PostConstruct
public void init() {
//初始化文件路径集合与文件编码格式,用于刷新
String jsFilesPathStr = this.jsCssAutoConfiguration.getJsFilesPaths();
this.logger.info("监控js的磁盘路径有:{}",jsFilesPathStr);
String[] pathsArr = jsFilesPathStr.split(",");
List pathList = Arrays.asList(pathsArr);
for(String path:pathList){
this.filePaths.add(new File(path));
}
this.encoding = this.jsCssAutoConfiguration.getEncoding();
String[] extensions = {"js"};
//尝试加载当前运行工程classpath中的javascript文件
try {
Enumeration resources = Thread.currentThread().getContextClassLoader().getResources("");
CommonTools.loadContent(encoding, resources, JS_REPERTORY,extensions);
} catch (IOException e1) {
this.logger.error("尝试从classpath中加载资源失败:"+e1.getMessage(),e1);
}
//将指定文件夹中的所有js文件内容读取到缓存
for(File pathTmp:filePaths){
try {
if(!pathTmp.isDirectory()||!pathTmp.exists()){
continue;
}
Collection jsFilesTmp = FileUtils.listFiles(pathTmp, extensions, true);
for(File fileTmp:jsFilesTmp){
String fileName = fileTmp.getName();
//猜测原始文件字符编码
byte[] byteArray = FileUtils.readFileToByteArray(fileTmp);
String guessedEncoding = CharsetGuessTools.doGuess(byteArray);
if(StringTools.isBlank(guessedEncoding)){
guessedEncoding=this.encoding;
}
String fileContent = FileUtils.readFileToString(fileTmp, guessedEncoding);
this.logger.debug("猜测文件{}的字符编码为:{},内容摘要有:{}",fileName,guessedEncoding,(StringTools.isBlank(fileContent)?"":fileContent.length()<20?fileContent:fileContent.substring(0, 20)+"..."));
JS_REPERTORY.put(fileName.toLowerCase(), fileContent);
}
} catch (Exception e) {
logger.error("获取"+pathTmp.getAbsolutePath()+"目录下的js文件失败"+e.getMessage(),e);
}
}
this.logger.info("当前成功加载javascript文件总条数是:{}",JS_REPERTORY.size());
}
@Override
public void destory() {
if(JS_REPERTORY != null){
JS_REPERTORY.clear();
}
}
@Override
public String getJs(String jsNames) {
if(jsNames != null && !"".equals(jsNames)){
String[] jsNamesArr = jsNames.split(",");
return this.getJs(jsNamesArr);
}else{
return ";";
}
}
@Override
public String getJs(List jsNames) {
if(jsNames != null && jsNames.size()>0){
String[] jsNamesArr = jsNames.toArray(new String[0]);
return this.getJs(jsNamesArr);
}else{
return ";";
}
}
@Override
public String getJs(String[] jsNames) {
StringBuffer sb_result = new StringBuffer(";");
if(jsNames != null && jsNames.length>0){
for(String fileName:jsNames){
String js_content_tmp = JS_REPERTORY.get(fileName.trim().toLowerCase());
if(js_content_tmp == null || "".equals(js_content_tmp)){
continue;
}
sb_result.append(js_content_tmp+";");
}
return sb_result.toString();
}else{
return ";";
}
}
@Override
public boolean refresh() {
boolean result = false;
try {
this.destory();
this.init();
result=true;
} catch (Exception e) {
e.printStackTrace();
logger.error(e.getMessage());
}
return result;
}
@Override
public List listJsFilenames() {
List result = new ArrayList();
if(JS_REPERTORY != null){
Set keySet = JS_REPERTORY.keySet();
result.addAll(keySet);
Collections.sort(result);
}
return result;
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy