| /* |
| * 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. |
| */ |
| package org.apache.stanbol.enhancer.engines.entitylinking.labeltokenizer.opennlp; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.net.URL; |
| import java.util.Map; |
| |
| import org.apache.stanbol.commons.stanboltools.datafileprovider.DataFileProvider; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** DataFileProvider that looks in our class resources */ |
| public class ClasspathDataFileProvider implements DataFileProvider { |
| |
| private final Logger log = LoggerFactory.getLogger(getClass()); |
| public static final String RESOURCE_BASE_PATH = "org/apache/stanbol/data/opennlp/"; |
| |
| private final String symbolicName; |
| |
| public ClasspathDataFileProvider(String bundleSymbolicName) { |
| symbolicName = bundleSymbolicName; |
| } |
| |
| @Override |
| public InputStream getInputStream(String bundleSymbolicName, |
| String filename, Map<String, String> comments) |
| throws IOException { |
| final URL dataFile = getDataFile(bundleSymbolicName, filename); |
| |
| // Returning null is fine - if we don't have the data file, another |
| // provider might supply it |
| return dataFile != null ? dataFile.openStream() : null; |
| } |
| @Override |
| public boolean isAvailable(String bundleSymbolicName, String filename, Map<String,String> comments) { |
| return getDataFile(bundleSymbolicName, filename) != null; |
| } |
| /** |
| * @param bundleSymbolicName |
| * @param filename |
| * @return |
| */ |
| private URL getDataFile(String bundleSymbolicName, String filename) { |
| //If the symbolic name is not null check that is equals to the symbolic |
| //name used to create this classpath data file provider |
| if(bundleSymbolicName != null && symbolicName != null && |
| !bundleSymbolicName.equals(symbolicName)) { |
| log.debug("Requested bundleSymbolicName {} does not match mine ({}), request ignored", |
| bundleSymbolicName, symbolicName); |
| return null; |
| } |
| |
| // load default OpenNLP models from classpath (embedded in the defaultdata bundle) |
| final String resourcePath = RESOURCE_BASE_PATH + filename; |
| final URL dataFile = getClass().getClassLoader().getResource(resourcePath); |
| //log.debug("Resource {} found: {}", (in == null ? "NOT" : ""), resourcePath); |
| return dataFile; |
| } |
| } |