    001// Licensed under the Apache License, Version 2.0 (the "License");
    002// you may not use this file except in compliance with the License.
    003// You may obtain a copy of the License at
    004//
    005// http://www.apache.org/licenses/LICENSE-2.0
    006//
    007// Unless required by applicable law or agreed to in writing, software
    008// distributed under the License is distributed on an "AS IS" BASIS,
    009// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    010// See the License for the specific language governing permissions and
    011// limitations under the License.
    012
    013package org.apache.tapestry5.services.javascript;
    014
    015import org.apache.tapestry5.ioc.Resource;
    016import org.apache.tapestry5.ioc.annotations.UsesMappedConfiguration;
    017import org.apache.tapestry5.ioc.util.UnknownValueException;
    018
    019import java.util.List;
    020
    021/**
    022 * Manages the available {@link JavaScriptStack}s, each of which has a unique name.
    023 *
    024 * @since 5.2.0
    025 */
    026@UsesMappedConfiguration(JavaScriptStack.class)
    027public interface JavaScriptStackSource
    028{
    029    /**
    030     * Gets a stack by name (ignoring case).
    031     *
    032     * @return named stack
    033     * @throws UnknownValueException
    034     *         if no such stack
    035     */
    036    JavaScriptStack getStack(String name);
    037
    038    /**
    039     * Gets a stack by name (ignoring case).
    040     *
    041     * @return named stack, or null if not found
    042     * @since 5.4
    043     */
    044    JavaScriptStack findStack(String name);
    045
    046    /**
    047     * Returns the names of all stacks, in sorted order.
    048     *
    049     * @since 5.2.1
    050     */
    051    List<String> getStackNames();
    052
    053    /**
    054     * Attempts to find the stack containing the indicated JavaScript library.
    055     *
    056     * @param resource identifies a potential JavaScript Library
    057     * @return the stack if found, or null
    058     * @since 5.4
    059     * @see JavaScriptStack#getJavaScriptLibraries()
    060     */
    061    JavaScriptStack findStackForJavaScriptLibrary(Resource resource);
    062}