package com.java110.web.core;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.util.StringUtils;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.io.Reader;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* 静态资源文件加载器
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* Created by wuxw on 2019/3/18.
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*/
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public class VueComponentTemplate extends PackageScanner {
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/**
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* 默认扫描路径
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*/
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public static final String DEFAULT_COMPONENT_PACKAGE_PATH = "components";
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/**
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* js 文件
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*/
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public static final String COMPONENT_JS = "js";
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/**
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* css 文件
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*/
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public static final String COMPONENT_CSS = "css";
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/**
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* html 文件
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*/
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public static final String COMPONENT_HTML = "html";
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/**
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* HTML 文件缓存器
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*/
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private static final Map<String, String> componentTemplate = new HashMap<>();
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/**
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* 初始化 组件信息
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*/
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public static void initComponent(String scanPath) {
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VueComponentTemplate vueComponentTemplate = new VueComponentTemplate();
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vueComponentTemplate.packageScanner(scanPath, COMPONENT_JS);
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vueComponentTemplate.packageScanner(scanPath, COMPONENT_HTML);
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vueComponentTemplate.packageScanner(scanPath, COMPONENT_CSS);
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}
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/**
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* 根据组件编码查询模板
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*
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* @param componentCode
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* @return
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*/
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public static String findTemplateByComponentCode(String componentCode) {
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if (componentTemplate.containsKey(componentCode)) {
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return componentTemplate.get(componentCode);
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}
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return null;
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}
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/**
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* 处理资源
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*
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* @param filePath
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*/
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protected void handleResource(String filePath) {
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Reader reader = null;
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String sb = "";
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try {
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InputStream inputStream = new ClassPathResource(filePath).getInputStream();
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//InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream(File.separator + filePath);
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reader = new InputStreamReader(inputStream, "UTF-8");
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int tempChar;
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StringBuffer b = new StringBuffer();
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while ((tempChar = reader.read()) != -1) {
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b.append((char) tempChar);
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}
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sb = b.toString();
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if (StringUtils.isEmpty(sb)) {
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return;
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}
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String componentKey = "";
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//这里在window 读取jar包中文件时，也是 / 但是直接启动时 为\这个 所以不能用 File.separator
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if (filePath.contains("/")) {
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componentKey = filePath.substring(filePath.lastIndexOf("/") + 1, filePath.length());
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} else {
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componentKey = filePath.substring(filePath.lastIndexOf("\\") + 1, filePath.length());
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}
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componentTemplate.put(componentKey, sb);
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} catch (IOException e) {
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e.printStackTrace();
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} finally {
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if (reader != null) {
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try {
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reader.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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}
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}
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