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/*
 * 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;


/**
 * 

RuleSet for processing the contents of a Realm definition * element. This RuleSet supports Realms such as the * CombinedRealm that used nested Realms.

* * @version $Id: RealmRuleSet.java 1408741 2012-11-13 14:20:16Z markt $ */ public class RealmRuleSet extends RuleSetBase { private static final int MAX_NESTED_REALM_LEVELS = Integer.getInteger( "org.apache.catalina.startup.RealmRuleSet.MAX_NESTED_REALM_LEVELS", 3).intValue(); // ----------------------------------------------------- Instance Variables /** * The matching pattern prefix to use for recognizing our elements. */ protected String prefix = null; // ------------------------------------------------------------ Constructor /** * Construct an instance of this RuleSet with the default * matching pattern prefix. */ public RealmRuleSet() { this(""); } /** * Construct an instance of this RuleSet with the specified * matching pattern prefix. * * @param prefix Prefix for matching pattern rules (including the * trailing slash character) */ public RealmRuleSet(String prefix) { super(); this.namespaceURI = null; this.prefix = prefix; } // --------------------------------------------------------- Public Methods /** *

Add the set of Rule instances defined in this RuleSet to the * specified Digester instance, associating them with * our namespace URI (if any). This method should only be called * by a Digester instance.

* * @param digester Digester instance to which the new Rule instances * should be added. */ @Override public void addRuleInstances(Digester digester) { String pattern = prefix; for (int i = 0; i < MAX_NESTED_REALM_LEVELS; i++) { if (i > 0) { pattern += "/"; } pattern += "Realm"; digester.addObjectCreate(pattern, null, // MUST be specified in the element, "className"); digester.addSetProperties(pattern); if (i == 0) { digester.addSetNext(pattern, "setRealm", "org.apache.catalina.Realm"); } else { digester.addSetNext(pattern, "addRealm", "org.apache.catalina.Realm"); } } } }




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