kafka ScramMechanism 源码
kafka ScramMechanism 代码
文件路径：/clients/src/main/java/org/apache/kafka/common/security/scram/internals/ScramMechanism.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.scram.internals;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
public enum ScramMechanism {
SCRAM_SHA_256("SHA-256", "HmacSHA256", 4096),
SCRAM_SHA_512("SHA-512", "HmacSHA512", 4096);
private final String mechanismName;
private final String hashAlgorithm;
private final String macAlgorithm;
private final int minIterations;
private static final Map<String, ScramMechanism> MECHANISMS_MAP;
static {
Map<String, ScramMechanism> map = new HashMap<>();
for (ScramMechanism mech : values())
map.put(mech.mechanismName, mech);
MECHANISMS_MAP = Collections.unmodifiableMap(map);
}
ScramMechanism(String hashAlgorithm, String macAlgorithm, int minIterations) {
this.mechanismName = "SCRAM-" + hashAlgorithm;
this.hashAlgorithm = hashAlgorithm;
this.macAlgorithm = macAlgorithm;
this.minIterations = minIterations;
}
public final String mechanismName() {
return mechanismName;
}
public String hashAlgorithm() {
return hashAlgorithm;
}
public String macAlgorithm() {
return macAlgorithm;
}
public int minIterations() {
return minIterations;
}
public static ScramMechanism forMechanismName(String mechanismName) {
return MECHANISMS_MAP.get(mechanismName);
}
public static Collection<String> mechanismNames() {
return MECHANISMS_MAP.keySet();
}
public static boolean isScram(String mechanismName) {
return MECHANISMS_MAP.containsKey(mechanismName);
}
}
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