fix: fix:【系统设置】更新或添加插件刷新页面提示异常，如果不重启平台处于无法使用状态

sdk/extensions/extensions-datasource/src/main/java/io/dataease/extensions/datasource/plugin/DatasourcePluginInfoLoader.java

@@ -0,0 +1,89 @@
+package io.dataease.extensions.datasource.plugin;
+
+import io.dataease.exception.DEException;
+import io.dataease.license.utils.JsonUtil;
+import io.dataease.plugins.template.DataEasePlugin;
+import io.dataease.plugins.vo.DataEasePluginVO;
+import org.apache.commons.lang3.StringUtils;
+
+import java.io.File;
+import java.io.InputStream;
+import java.net.URI;
+import java.security.ProtectionDomain;
+import java.nio.charset.StandardCharsets;
+import java.util.Enumeration;
+import java.util.Map;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+final class DatasourcePluginInfoLoader {
+
+    private static final String PLUGIN_INFO_PATTERN = "^plugin/extensions.*\\.json$";
+
+    private DatasourcePluginInfoLoader() {
+    }
+
+    public static DataEasePluginVO load(DataEasePlugin plugin) {
+        ProtectionDomain protectionDomain = plugin.getClass().getProtectionDomain();
+        try {
+            URI uri = protectionDomain.getCodeSource().getLocation().toURI();
+            File file = new File(uri);
+            if (!file.isFile()) {
+                return plugin.getPluginInfo();
+            }
+            try (JarFile jarFile = new JarFile(file)) {
+                JarEntry pluginInfoEntry = findPluginInfoEntry(jarFile);
+                Map<String, Object> pluginInfo = readPluginInfo(jarFile, pluginInfoEntry);
+                String moduleName = readModuleName(pluginInfo);
+                String icon = readIcon(jarFile, moduleName);
+                pluginInfo.put("icon", icon);
+                pluginInfo.put("config", JsonUtil.toJSONString(pluginInfo.get("config")));
+                return JsonUtil.parseObject(JsonUtil.toJSONString(pluginInfo).toString(), DataEasePluginVO.class);
+            }
+        } catch (Exception e) {
+            DEException.throwException(e);
+            return null;
+        }
+    }
+
+    private static JarEntry findPluginInfoEntry(JarFile jarFile) {
+        Enumeration<JarEntry> entries = jarFile.entries();
+        while (entries.hasMoreElements()) {
+            JarEntry entry = entries.nextElement();
+            if (entry.getName().matches(PLUGIN_INFO_PATTERN)) {
+                return entry;
+            }
+        }
+        DEException.throwException("插件缺失描述文件[extensions-*.json]");
+        return null;
+    }
+
+    private static Map<String, Object> readPluginInfo(JarFile jarFile, JarEntry pluginInfoEntry) throws Exception {
+        try (InputStream inputStream = jarFile.getInputStream(pluginInfoEntry)) {
+            Map<String, Object> pluginInfo = JsonUtil.parseObject(new String(inputStream.readAllBytes(), StandardCharsets.UTF_8), Map.class);
+            if (pluginInfo == null || pluginInfo.isEmpty()) {
+                DEException.throwException("插件描述文件[extensions-*.json]内容为空");
+            }
+            return pluginInfo;
+        }
+    }
+
+    private static String readModuleName(Map<String, Object> pluginInfo) {
+        Object moduleName = pluginInfo.get("moduleName");
+        if (moduleName == null || StringUtils.isBlank(moduleName.toString())) {
+            DEException.throwException("插件描述文件[extensions-*.json]中缺失moduleName描述");
+        }
+        return moduleName.toString();
+    }
+
+    private static String readIcon(JarFile jarFile, String moduleName) throws Exception {
+        String iconPath = String.format("plugin/%s.svg", moduleName);
+        JarEntry iconEntry = jarFile.getJarEntry(iconPath);
+        if (iconEntry == null) {
+            DEException.throwException(String.format("插件缺失图标文件[%s]", iconPath));
+        }
+        try (InputStream inputStream = jarFile.getInputStream(iconEntry)) {
+            return new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
+        }
+    }
+}