spark ServiceUtils 源码
spark ServiceUtils 代码
文件路径：/sql/hive-thriftserver/src/main/java/org/apache/hive/service/ServiceUtils.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.hive.service;
import java.io.IOException;
import org.slf4j.Logger;
public class ServiceUtils {
/*
* Get the index separating the user name from domain name (the user's name up
* to the first '/' or '@').
*
* @param userName full user name.
* @return index of domain match or -1 if not found
*/
public static int indexOfDomainMatch(String userName) {
if (userName == null) {
return -1;
}
int idx = userName.indexOf('/');
int idx2 = userName.indexOf('@');
int endIdx = Math.min(idx, idx2); // Use the earlier match.
// Unless at least one of '/' or '@' was not found, in
// which case, user the latter match.
if (endIdx == -1) {
endIdx = Math.max(idx, idx2);
}
return endIdx;
}
/**
* Close the Closeable objects and <b>ignore</b> any {@link IOException} or
* null pointers. Must only be used for cleanup in exception handlers.
*
* @param log the log to record problems to at debug level. Can be null.
* @param closeables the objects to close
*/
public static void cleanup(Logger log, java.io.Closeable... closeables) {
for (java.io.Closeable c : closeables) {
if (c != null) {
try {
c.close();
} catch(IOException e) {
if (log != null && log.isDebugEnabled()) {
log.debug("Exception in closing " + c, e);
}
}
}
}
}
}
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