001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache license, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the license for the specific language governing permissions and
015 * limitations under the license.
016 */
017package org.apache.logging.log4j.core.lookup;
018
019import java.util.Map;
020import java.util.Properties;
021
022/**
023 * {@link RuntimeStrSubstitutor} is a {@link StrSubstitutor} which only supports evaluation of top-level lookups.
024 */
025public final class RuntimeStrSubstitutor extends StrSubstitutor {
026
027    public RuntimeStrSubstitutor() {
028    }
029
030    public RuntimeStrSubstitutor(final Map<String, String> valueMap) {
031        super(valueMap);
032    }
033
034    public RuntimeStrSubstitutor(final Properties properties) {
035        super(properties);
036    }
037
038    public RuntimeStrSubstitutor(final StrLookup lookup) {
039        super(lookup);
040    }
041
042    public RuntimeStrSubstitutor(final StrSubstitutor other) {
043        super(other);
044    }
045
046    @Override
047    boolean isRecursiveEvaluationAllowed() {
048        return false;
049    }
050
051    @Override
052    void setRecursiveEvaluationAllowed(final boolean recursiveEvaluationAllowed) {
053        throw new UnsupportedOperationException(
054                "recursiveEvaluationAllowed cannot be modified within RuntimeStrSubstitutor");
055    }
056
057    @Override
058    public String toString() {
059        return "RuntimeStrSubstitutor{" + super.toString() + "}";
060    }
061}