001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *      http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.oozie.util.schema;
020
021import org.apache.commons.io.FilenameUtils;
022import org.w3c.dom.ls.LSInput;
023import org.w3c.dom.ls.LSResourceResolver;
024
025import java.io.InputStream;
026
027/**
028 * Utility class to handle schema import and include statements
029 */
030public class ResourceResolver implements LSResourceResolver {
031
032    public LSInput resolveResource(String type, String namespaceURI,
033                                   String publicId, String systemId, String baseURI) {
034        if (systemId == null) {
035            systemId = FilenameUtils.getName(baseURI);
036        }
037        InputStream resourceAsStream = this.getClass().getClassLoader().getResourceAsStream(systemId);
038        return new Input(publicId, systemId, resourceAsStream);
039    }
040}