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.services.assets; 016 017import org.apache.tapestry5.services.assets.StreamableResource; 018 019import java.io.IOException; 020 021/** 022 * Assembles the individual assets of a {@link org.apache.tapestry5.services.javascript.JavaScriptStack} into 023 * a single resource; this is needed to generate a checksum for the aggregated assets, and also to service the 024 * aggregated stack content. 025 * 026 * @see org.apache.tapestry5.SymbolConstants#COMBINE_SCRIPTS 027 * @since 5.4 028 */ 029public interface JavaScriptStackAssembler 030{ 031 /** 032 * Obtains the {@link org.apache.tapestry5.services.javascript.JavaScriptStack} by name, and then 033 * uses the {@link org.apache.tapestry5.services.assets.StreamableResourceSource} service to 034 * obtain the assets, which are combined together. 035 * <p/> 036 * Expects the {@linkplain org.apache.tapestry5.services.LocalizationSetter#setNonPersistentLocaleFromLocaleName(String) non-persistent locale} to be set before invoking! 037 */ 038 StreamableResource assembleJavaScriptResourceForStack(String stackName, boolean compress) throws IOException; 039}