hadoop ConfigUtils 源码
haddop ConfigUtils 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-services/hadoop-yarn-services-core/src/main/java/org/apache/hadoop/yarn/service/utils/ConfigUtils.java
/*
* 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.hadoop.yarn.service.utils;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class ConfigUtils {
public static String replaceProps(Map<String, String> config, String content) {
Map<String, String> tokens = new HashMap<>();
for (Entry<String, String> entry : config.entrySet()) {
tokens.put("${" + entry.getKey() + "}", entry.getValue());
tokens.put("{{" + entry.getKey() + "}}", entry.getValue());
}
String value = content;
for (Map.Entry<String,String> token : tokens.entrySet()) {
value = value.replaceAll(Pattern.quote(token.getKey()),
Matcher.quoteReplacement(token.getValue()));
}
return value;
}
}
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