| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.afp.util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URI; |
| import java.net.URL; |
| |
| /** |
| * Simple implementation of the {@link ResourceAccessor} interface for access relative to a |
| * base URI. |
| */ |
| public class SimpleResourceAccessor implements ResourceAccessor { |
| |
| private URI baseURI; |
| |
| /** |
| * Creates a new simple resource accessor. |
| * @param baseURI the base URI to resolve relative URIs against (may be null) |
| */ |
| public SimpleResourceAccessor(URI baseURI) { |
| this.baseURI = baseURI; |
| } |
| |
| /** |
| * Creates a new simple resource accessor. |
| * @param baseDir the base directory to resolve relative filenames against (may be null) |
| */ |
| public SimpleResourceAccessor(File baseDir) { |
| this(baseDir != null ? baseDir.toURI() : null); |
| } |
| |
| /** |
| * Returns the base URI. |
| * @return the base URI (or null if no base URI was set) |
| */ |
| public URI getBaseURI() { |
| return this.baseURI; |
| } |
| |
| /** |
| * Resolve the given URI against the baseURI. |
| * @param uri the URI to resolve |
| * @return the resolved URI |
| */ |
| protected URI resolveAgainstBase(URI uri) { |
| return (getBaseURI() != null ? getBaseURI().resolve(uri) : uri); |
| } |
| |
| /** {@inheritDoc} */ |
| public InputStream createInputStream(URI uri) throws IOException { |
| URI resolved = resolveAgainstBase(uri); |
| URL url = resolved.toURL(); |
| return url.openStream(); |
| } |
| |
| } |