kafka SecurityProtocol 源码
kafka SecurityProtocol 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/security/auth/SecurityProtocol.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.common.security.auth;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public enum SecurityProtocol {
/** Un-authenticated, non-encrypted channel */
PLAINTEXT(0, "PLAINTEXT"),
/** SSL channel */
SSL(1, "SSL"),
/** SASL authenticated, non-encrypted channel */
SASL_PLAINTEXT(2, "SASL_PLAINTEXT"),
/** SASL authenticated, SSL channel */
SASL_SSL(3, "SASL_SSL");
private static final Map<Short, SecurityProtocol> CODE_TO_SECURITY_PROTOCOL;
private static final List<String> NAMES;
static {
SecurityProtocol[] protocols = SecurityProtocol.values();
List<String> names = new ArrayList<>(protocols.length);
Map<Short, SecurityProtocol> codeToSecurityProtocol = new HashMap<>(protocols.length);
for (SecurityProtocol proto : protocols) {
codeToSecurityProtocol.put(proto.id, proto);
names.add(proto.name);
}
CODE_TO_SECURITY_PROTOCOL = Collections.unmodifiableMap(codeToSecurityProtocol);
NAMES = Collections.unmodifiableList(names);
}
/** The permanent and immutable id of a security protocol -- this can't change, and must match kafka.cluster.SecurityProtocol */
public final short id;
/** Name of the security protocol. This may be used by client configuration. */
public final String name;
SecurityProtocol(int id, String name) {
this.id = (short) id;
this.name = name;
}
public static List<String> names() {
return NAMES;
}
public static SecurityProtocol forId(short id) {
return CODE_TO_SECURITY_PROTOCOL.get(id);
}
/** Case insensitive lookup by protocol name */
public static SecurityProtocol forName(String name) {
return SecurityProtocol.valueOf(name.toUpperCase(Locale.ROOT));
}
}
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