# ServletRequestContext.java

    /*
     * 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 org.apache.commons.fileupload.servlet;

    import java.io.IOException;
    import java.io.InputStream;

    import javax.servlet.http.HttpServletRequest;

    import org.apache.commons.fileupload.FileUploadBase;
    import org.apache.commons.fileupload.UploadContext;

    /**
     * <p>Provides access to the request information needed for a request made to
     * an HTTP servlet.</p>
     *
     * @since FileUpload 1.1
     */
    public class ServletRequestContext implements UploadContext {

        /**
         * The request for which the context is being provided.
         */
        private final HttpServletRequest request;

        /**
         * Construct a context for this request.
         *
         * @param request The request to which this context applies.
         */
        public ServletRequestContext(final HttpServletRequest request) {
            this.request = request;
        }

        /**
         * Retrieve the content length of the request.
         *
         * @return The content length of the request.
         * @since 1.3
         */
        @Override
        public long contentLength() {
            long size;
            try {
                size = Long.parseLong(request.getHeader(FileUploadBase.CONTENT_LENGTH));
            } catch (final NumberFormatException e) {
                size = request.getContentLength();
            }
            return size;
        }

        /**
         * Retrieve the character encoding for the request.
         *
         * @return The character encoding for the request.
         */
        @Override
        public String getCharacterEncoding() {
            return request.getCharacterEncoding();
        }

        /**
         * Retrieve the content length of the request.
         *
         * @return The content length of the request.
         * @deprecated 1.3 Use {@link #contentLength()} instead
         */
        @Override
        @Deprecated
        public int getContentLength() {
            return request.getContentLength();
        }

        /**
         * Retrieve the content type of the request.
         *
         * @return The content type of the request.
         */
        @Override
        public String getContentType() {
            return request.getContentType();
        }

        /**
         * Retrieve the input stream for the request.
         *
         * @return The input stream for the request.
         * @throws IOException if a problem occurs.
         */
        @Override
        public InputStream getInputStream() throws IOException {
            return request.getInputStream();
        }

        /**
         * Returns a string representation of this object.
         *
         * @return a string representation of this object.
         */
        @Override
        public String toString() {
            return String.format("ContentLength=%s, ContentType=%s",
                    Long.valueOf(contentLength()), getContentType());
        }

    }