hadoop FederationPolicyInitializationContextValidator 源码
haddop FederationPolicyInitializationContextValidator 代码
文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/policies/FederationPolicyInitializationContextValidator.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.server.federation.policies;
import org.apache.hadoop.yarn.server.federation.policies.exceptions.FederationPolicyInitializationException;
/**
* Helper class used to factor out common validation steps for policies.
*/
public final class FederationPolicyInitializationContextValidator {
private FederationPolicyInitializationContextValidator() {
// disable constructor per checkstyle
}
public static void validate(
FederationPolicyInitializationContext policyContext, String myType)
throws FederationPolicyInitializationException {
if (myType == null) {
throw new FederationPolicyInitializationException(
"The myType parameter" + " should not be null.");
}
if (policyContext == null) {
throw new FederationPolicyInitializationException(
"The FederationPolicyInitializationContext provided is null. Cannot"
+ " reinitalize " + "successfully.");
}
if (policyContext.getFederationStateStoreFacade() == null) {
throw new FederationPolicyInitializationException(
"The FederationStateStoreFacade provided is null. Cannot"
+ " reinitalize successfully.");
}
if (policyContext.getFederationSubclusterResolver() == null) {
throw new FederationPolicyInitializationException(
"The FederationSubclusterResolver provided is null. Cannot"
+ " reinitalize successfully.");
}
if (policyContext.getSubClusterPolicyConfiguration() == null) {
throw new FederationPolicyInitializationException(
"The SubClusterPolicyConfiguration provided is null. Cannot "
+ "reinitalize successfully.");
}
String intendedType =
policyContext.getSubClusterPolicyConfiguration().getType();
if (!myType.equals(intendedType)) {
throw new FederationPolicyInitializationException(
"The FederationPolicyConfiguration carries a type (" + intendedType
+ ") different then mine (" + myType
+ "). Cannot reinitialize successfully.");
}
}
}
相关信息
相关文章
hadoop AbstractConfigurableFederationPolicy 源码
hadoop ConfigurableFederationPolicy 源码
hadoop FederationPolicyInitializationContext 源码
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