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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.IOException;
- import java.io.InputStream;
- import java.net.URI;
- import java.net.URISyntaxException;
-
- import org.apache.fop.apps.io.InternalResourceResolver;
-
- /**
- * Defines an interface through which external resource objects can be accessed.
- */
- public final class AFPResourceAccessor {
-
- private final InternalResourceResolver resourceResolver;
- private final String baseURI;
-
- /**
- * Constructor for resource to be accessed via the {@link org.apache.fop.apps.FOUserAgent}. This
- * contructor takes a base URI for resolving font resource URIs. So, if fonts need to be
- * accessed, you can set the {@link FontManager}'s base URI instead of the one on the
- * {@link org.apache.fop.apps.FopFactory}.
- *
- * @param InternalResourceResolver resource resolver
- * @param baseURI the custom base URI to resolve relative URIs against (may be null)
- */
- public AFPResourceAccessor(InternalResourceResolver resourceResolver, String baseURI) {
- this.resourceResolver = resourceResolver;
- this.baseURI = baseURI;
- }
-
- /**
- * Constructor for resource to be accessed via the {@link org.apache.fop.apps.FOUserAgent}.
- *
- * @param InternalResourceResolver resource resolver
- */
- public AFPResourceAccessor(InternalResourceResolver resourceResolver) {
- this(resourceResolver, null);
- }
-
- private URI getResourceURI(URI uri) {
- if (baseURI == null) {
- return uri;
- }
- try {
- URI baseURI = InternalResourceResolver.getBaseURI(this.baseURI);
- return baseURI.resolve(uri);
- } catch (URISyntaxException use) {
- return uri;
- }
- }
-
- /** {@inheritDoc} */
- public InputStream createInputStream(URI uri) throws IOException {
- return resourceResolver.getResource(getResourceURI(uri));
- }
- }
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