kafka ConverterType 源码
kafka ConverterType 代码
文件路径：/connect/api/src/main/java/org/apache/kafka/connect/storage/ConverterType.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.kafka.connect.storage;
import java.util.Collections;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
/**
* The type of {@link Converter} and {@link HeaderConverter}.
*/
public enum ConverterType {
KEY,
VALUE,
HEADER;
private static final Map<String, ConverterType> NAME_TO_TYPE;
static {
ConverterType[] types = ConverterType.values();
Map<String, ConverterType> nameToType = new HashMap<>(types.length);
for (ConverterType type : types) {
nameToType.put(type.name, type);
}
NAME_TO_TYPE = Collections.unmodifiableMap(nameToType);
}
/**
* Find the ConverterType with the given name, using a case-insensitive match.
* @param name the name of the converter type; may be null
* @return the matching converter type, or null if the supplied name is null or does not match the name of the known types
*/
public static ConverterType withName(String name) {
if (name == null) {
return null;
}
return NAME_TO_TYPE.get(name.toLowerCase(Locale.getDefault()));
}
private final String name;
ConverterType() {
this.name = this.name().toLowerCase(Locale.ROOT);
}
public String getName() {
return name;
}
}
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