| /* |
| * 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.catalina.startup; |
| |
| import org.apache.tomcat.util.digester.Digester; |
| import org.apache.tomcat.util.digester.RuleSetBase; |
| |
| /** |
| * <p><strong>RuleSet</strong> for processing the contents of a |
| * CredentialHandler definition element. This <code>RuleSet</code> supports |
| * CredentialHandler such as the <code>NestedCredentialHandler</code> that used |
| * nested CredentialHandlers.</p> |
| */ |
| public class CredentialHandlerRuleSet extends RuleSetBase { |
| |
| |
| private static final int MAX_NESTED_LEVELS = Integer.getInteger( |
| "org.apache.catalina.startup.CredentialHandlerRuleSet.MAX_NESTED_LEVELS", |
| 3).intValue(); |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| |
| /** |
| * The matching pattern prefix to use for recognizing our elements. |
| */ |
| protected final String prefix; |
| |
| |
| // ------------------------------------------------------------ Constructor |
| |
| |
| /** |
| * Construct an instance of this <code>RuleSet</code> with the default |
| * matching pattern prefix. |
| */ |
| public CredentialHandlerRuleSet() { |
| this(""); |
| } |
| |
| |
| /** |
| * Construct an instance of this <code>RuleSet</code> with the specified |
| * matching pattern prefix. |
| * |
| * @param prefix Prefix for matching pattern rules (including the |
| * trailing slash character) |
| */ |
| public CredentialHandlerRuleSet(String prefix) { |
| this.namespaceURI = null; |
| this.prefix = prefix; |
| } |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| |
| /** |
| * <p>Add the set of Rule instances defined in this RuleSet to the |
| * specified <code>Digester</code> instance, associating them with |
| * our namespace URI (if any). This method should only be called |
| * by a Digester instance.</p> |
| * |
| * @param digester Digester instance to which the new Rule instances |
| * should be added. |
| */ |
| @Override |
| public void addRuleInstances(Digester digester) { |
| StringBuilder pattern = new StringBuilder(prefix); |
| for (int i = 0; i < MAX_NESTED_LEVELS; i++) { |
| if (i > 0) { |
| pattern.append('/'); |
| } |
| pattern.append("CredentialHandler"); |
| addRuleInstances(digester, pattern.toString(), i == 0 ? "setCredentialHandler" |
| : "addCredentialHandler"); |
| } |
| } |
| |
| private void addRuleInstances(Digester digester, String pattern, String methodName) { |
| digester.addObjectCreate(pattern, null /* MUST be specified in the element */, |
| "className"); |
| digester.addSetProperties(pattern); |
| digester.addSetNext(pattern, methodName, "org.apache.catalina.CredentialHandler"); |
| } |
| } |