X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fxml%2FLog4jEntityResolver.java;fp=srcjar_unused%2Forg%2Fapache%2Flog4j%2Fxml%2FLog4jEntityResolver.java;h=94125a606d46ab544d1948fc137cbbc9d34f2c79;hb=ec8f3cedf60fb1feed6d34de6b49f6bfa78b9dd8;hp=0000000000000000000000000000000000000000;hpb=056dad85a910551cc95e44d451a61f6b8c4dd35d;p=jalview.git diff --git a/srcjar_unused/org/apache/log4j/xml/Log4jEntityResolver.java b/srcjar_unused/org/apache/log4j/xml/Log4jEntityResolver.java new file mode 100644 index 0000000..94125a6 --- /dev/null +++ b/srcjar_unused/org/apache/log4j/xml/Log4jEntityResolver.java @@ -0,0 +1,51 @@ +/* + * 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.log4j.xml; + +import org.apache.log4j.helpers.LogLog; +import org.xml.sax.EntityResolver; +import org.xml.sax.InputSource; + +import java.io.InputStream; +import java.io.ByteArrayInputStream; + +/** + * An {@link EntityResolver} specifically designed to return + * log4j.dtd which is embedded within the log4j jar + * file. + * + * @author Paul Austin + * */ +public class Log4jEntityResolver implements EntityResolver { + private static final String PUBLIC_ID = "-//APACHE//DTD LOG4J 1.2//EN"; + + public InputSource resolveEntity (String publicId, String systemId) { + if (systemId.endsWith("log4j.dtd") || PUBLIC_ID.equals(publicId)) { + Class clazz = getClass(); + InputStream in = clazz.getResourceAsStream("/org/apache/log4j/xml/log4j.dtd"); + if (in == null) { + LogLog.warn("Could not find [log4j.dtd] using [" + clazz.getClassLoader() + + "] class loader, parsed without DTD."); + in = new ByteArrayInputStream(new byte[0]); + } + return new InputSource(in); + } else { + return null; + } + } +}