2 * Copyright 2005-2011 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.wamblee.xmlrouter.impl;
18 import java.util.logging.Level;
19 import java.util.logging.Logger;
21 import javax.xml.transform.dom.DOMSource;
23 import org.wamblee.xmlrouter.common.Id;
24 import org.wamblee.xmlrouter.config.Filter;
27 * This class provides robustness towards externally supplied filters.
29 * @author Erik Brakkee
32 public class RobustFilter implements Filter {
34 private static final Logger LOGGER = Logger.getLogger(RobustFilter.class
37 private Id<Filter> id;
38 private Filter filter;
41 * Constructs the wrapper.
48 public RobustFilter(Id<Filter> aId, Filter aFilter) {
54 public boolean isAllowed(String aDocumentType, DOMSource aSource) {
56 return filter.isAllowed(aDocumentType, aSource);
57 } catch (Exception e) {
58 LOGGER.log(Level.WARNING, "Filter " + id +
59 " threw exception, assuming filter returns true", e);