001// Copyright 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.internal.webresources; 016 017import org.apache.tapestry5.services.assets.ResourceTransformer; 018 019/** 020 * Creates ResourceTransformer around a named {@link org.apache.tapestry5.webresources.services.ResourceProcessor}. 021 * 022 * @see org.apache.tapestry5.services.assets.StreamableResourceSource 023 * @since 5.4 024 */ 025public interface ResourceTransformerFactory 026{ 027 028 /** 029 * Constructs a compiler around a another ResourceTransformer implementation. In development mode, the wrapped version 030 * will handle caching, as well as logging output of timing for the real implementation. 031 * 032 * @param sourceName 033 * for debugging: source name, e.g., "Less" 034 * @param targetName 035 * for debugging: target name, e.g., "CSS" 036 * @param transformer 037 * performs the actual work 038 * @param cacheMode 039 * Indicates if and how the compiled content should be cached (in development mode only) 040 * @return transformer 041 * @see org.apache.tapestry5.webresources.services.ResourceProcessorSource 042 */ 043 ResourceTransformer createCompiler(String contentType, String sourceName, String targetName, ResourceTransformer transformer, CacheMode cacheMode); 044 045}