优化

src/main/java/cloud/tianai/captcha/resource/AbstractResourceProvider.java

@@ -0,0 +1,29 @@
+package cloud.tianai.captcha.resource;
+
+import cloud.tianai.captcha.resource.common.model.dto.Resource;
+
+import java.io.InputStream;
+
+/**
+ * @Author: 天爱有情
+ * @date 2021/12/16 16:52
+ * @Description 抽象的ResourceProvider
+ */
+public abstract class AbstractResourceProvider implements ResourceProvider {
+    @Override
+    public InputStream getResourceInputStream(Resource data) {
+        InputStream resourceInputStream = doGetResourceInputStream(data);
+        if (resourceInputStream == null) {
+            throw new IllegalArgumentException("滑块验证码无法读到指定的资源[" + getName() + "]" + data);
+        }
+        return resourceInputStream;
+    }
+
+    /**
+     * 通过 Resource 获取  InputStream
+     *
+     * @param data data
+     * @return InputStream
+     */
+    public abstract InputStream doGetResourceInputStream(Resource data);
+}