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- /*
- * 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();
- }
-
- }
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