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.
012package org.apache.tapestry5.services;
013
014import org.apache.tapestry5.commons.Resource;
015
016/**
017 * Class that represents the exception of an asset not being found.
018 */
019public class AssetNotFoundException extends RuntimeException {
020
021    private static final long serialVersionUID = 1L;
022    
023    final private Resource resource;
024
025    /**
026     * {@inheritDoc}
027     */
028    public AssetNotFoundException(String message) {
029        super(message);
030        resource = null;
031    }
032
033    /**
034     * Constructs an exception with message and a {@link Resource}.
035     * @param message a <code>String</code>.
036     * @param resource a {@link Resource}.
037     */
038    public AssetNotFoundException(String message, Resource resource) {
039        super(message);
040        this.resource = resource;
041    }
042    
043    /**
044     * The resource which wasn't found. It may be null.
045     * @return a {@link Resource}.
046     */
047    public Resource getResource() {
048        return resource;
049    }
050
051}