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java/javax/servlet/annotation/MultipartConfig.java

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+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package javax.servlet.annotation;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * This annotation is used to indicate that the {@link javax.servlet.Servlet} on
+ * which it is declared expects requests to made using the {@code
+ * multipart/form-data} MIME type. <br>
+ * <br>
+ *
+ * {@link javax.servlet.http.Part} components of a given {@code
+ * multipart/form-data} request are retrieved by a Servlet annotated with
+ * {@code MultipartConfig} by calling
+ * {@link javax.servlet.http.HttpServletRequest#getPart} or
+ * {@link javax.servlet.http.HttpServletRequest#getParts}.<br>
+ * <br>
+ *
+ * E.g. <code>@WebServlet("/upload")}</code><br>
+ *
+ * <code>@MultipartConfig()</code> <code>public class UploadServlet extends
+ * HttpServlet ... } </code><br>
+ *
+ * @since Servlet 3.0
+ */
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface MultipartConfig {
+
+    /**
+     * @return location in which the Container stores temporary files
+     */
+    String location() default "";
+
+    /**
+     * @return the maximum size allowed for uploaded files (in bytes)
+     */
+    long maxFileSize() default -1L;
+
+    /**
+     * @return the maximum size of the request allowed for {@code
+     *         multipart/form-data}
+     */
+    long maxRequestSize() default -1L;
+
+    /**
+     * @return the size threshold at which the file will be written to the disk
+     */
+    int fileSizeThreshold() default 0;
+}