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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2008-2009 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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 */
package javax.servlet;

import javax.servlet.annotation.MultipartConfig;

/**
 * Java Class represntation of an {@link MultipartConfig} annotation value.
 *
 * @since Servlet 3.0
 */
public class MultipartConfigElement {

    private String location;
    private long maxFileSize;
    private long maxRequestSize;
    private int fileSizeThreshold;

    /**
     * Constructs an instance with defaults for all but location.
     *
     * @param location defualts to "" if values is null.
     */
    public MultipartConfigElement(String location) {
        if (location == null) {
            this.location = "";
        } else
            this.location = location;
        this.maxFileSize = -1L;
        this.maxRequestSize = -1L;
        this.fileSizeThreshold = 0;
    }

    /**
     * Constructs an instance with all values specified.
     *
     * @param location the directory location where files will be stored
     * @param maxFileSize the maximum size allowed for uploaded files
     * @param maxRequestSize the maximum size allowed for
     * multipart/form-data requests
     * @param fileSizeThreshold the size threshold after which files will
     * be written to disk
     */
    public MultipartConfigElement(String location, long maxFileSize,
            long maxRequestSize, int fileSizeThreshold) {
        if (location == null) {
            this.location = "";
        } else
            this.location = location;
        this.maxFileSize = maxFileSize;
        this.maxRequestSize = maxRequestSize;
        this.fileSizeThreshold = fileSizeThreshold;
    }

    /**
     * Constructs an instance from a {@link MultipartConfig} annotation value.
     *
     * @param annotation the annotation value
     */
    public MultipartConfigElement(MultipartConfig annotation) {
        this.location = annotation.location();
        this.fileSizeThreshold = annotation.fileSizeThreshold();
        this.maxFileSize = annotation.maxFileSize();
        this.maxRequestSize = annotation.maxRequestSize();
    }

    /**
     * Gets the directory location where files will be stored.
     *
     * @return the directory location where files will be stored
     */
    public String getLocation() {
        return this.location;
    }

    /**
     * Gets the maximum size allowed for uploaded files.
     *
     * @return the maximum size allowed for uploaded files
     */
    public long getMaxFileSize() {
        return this.maxFileSize;
    }

    /**
     * Gets the maximum size allowed for multipart/form-data requests.
     *
     * @return the maximum size allowed for multipart/form-data requests
     */
    public long getMaxRequestSize() {
        return this.maxRequestSize;
    }

    /**
     * Gets the size threshold after which files will be written to disk.
     *
     * @return the size threshold after which files will be written to disk
     */
    public int getFileSizeThreshold() {
        return this.fileSizeThreshold;
    }
}