    001// Copyright 2011, 2013 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007// http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.services.assets;
    016
    017import org.apache.tapestry5.http.services.Response;
    018
    019/**
    020 * Indicates how the content inside a {@link StreamableResource} is (potentially) compressed.
    021 *
    022 * @since 5.3
    023 */
    024public enum CompressionStatus
    025{
    026    /**
    027     * The content may be compressed but has not yet been compressed. This is true for most text-oriented content types,
    028     * but not for most image content types.
    029     */
    030    COMPRESSABLE,
    031
    032    /**
    033     * The content has been compressed, which must be reflected in the {@link Response}'s content encoding.
    034     */
    035    COMPRESSED,
    036
    037    /**
    038     * The content is not compressable. This is usually the case for image content types, where the native format
    039     * of the content already includes compression.
    040     */
    041    NOT_COMPRESSABLE;
    042}