hadoop ServiceRecordProcessor 源码
haddop ServiceRecordProcessor 代码
文件路径：/hadoop-common-project/hadoop-registry/src/main/java/org/apache/hadoop/registry/server/dns/ServiceRecordProcessor.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.registry.server.dns;
import org.apache.hadoop.registry.client.types.ServiceRecord;
import java.io.IOException;
/**
* Manage the processing of service records in order to create DNS records.
*/
public interface ServiceRecordProcessor {
/**
* Initialize the mapping between DNS record type and record information
* for the given service record.
* @param serviceRecord the registry service record.
* @throws Exception if encountering an error.
*/
void initTypeToInfoMapping(ServiceRecord serviceRecord)
throws Exception;
/**
* Return the DNS record types valid for this processor.
* @return the array of DNS record types.
*/
int[] getRecordTypes();
/**
* Manage the creation and registration of DNS records generated by parsing
* a service record.
* @param command the DNS registration command object (e.g. add_record,
* remove record)
* @throws IOException if the creation or registration generates an issue.
*/
void manageDNSRecords(RegistryDNS.RegistryCommand command)
throws IOException;
}
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