    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017
    018package org.apache.commons.fileupload2.core;
    019
    020import java.util.Objects;
    021import java.util.function.Function;
    022import java.util.function.LongSupplier;
    023
    024public abstract class AbstractRequestContext<T> implements RequestContext {
    025
    026    /**
    027     * Supplies the content length default.
    028     */
    029    private final LongSupplier contentLengthDefault;
    030
    031    /**
    032     * Supplies the content length string.
    033     */
    034    private final Function<String, String> contentLengthString;
    035
    036    /**
    037     * The request.
    038     */
    039    private final T request;
    040
    041    /**
    042     * Constructs a new instance.
    043     *
    044     * @param contentLengthString  How to get the content length string.
    045     * @param contentLengthDefault How to get the content length default.
    046     * @param request              The request.
    047     */
    048    protected AbstractRequestContext(final Function<String, String> contentLengthString, final LongSupplier contentLengthDefault, final T request) {
    049        this.contentLengthString = Objects.requireNonNull(contentLengthString, "contentLengthString");
    050        this.contentLengthDefault = Objects.requireNonNull(contentLengthDefault, "contentLengthDefault");
    051        this.request = Objects.requireNonNull(request, "request");
    052    }
    053
    054    /**
    055     * Gets the content length of the request.
    056     *
    057     * @return The content length of the request.
    058     */
    059    @Override
    060    public long getContentLength() {
    061        try {
    062            return Long.parseLong(contentLengthString.apply(AbstractFileUpload.CONTENT_LENGTH));
    063        } catch (final NumberFormatException e) {
    064            return contentLengthDefault.getAsLong();
    065        }
    066    }
    067
    068    public T getRequest() {
    069        return request;
    070    }
    071
    072    /**
    073     * Returns a string representation of this object.
    074     *
    075     * @return a string representation of this object.
    076     */
    077    @Override
    078    public String toString() {
    079        return String.format("%s [ContentLength=%s, ContentType=%s]", getClass().getSimpleName(), getContentLength(), getContentType());
    080    }
    081
    082}