HBASE-3581 hbase rpc should send size of response

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1185618 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2011-10-18 12:20:19 +00:00
parent 54acda49f9
commit 712bf529b8
1 changed files with 47 additions and 0 deletions

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/**
* 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.hbase.ipc;
/**
* Utility for managing the flag byte passed in response to a
* {@link HBaseServer.Call}
*/
class ResponseFlag {
private static final byte ERROR_BIT = 0x1;
private static final byte LENGTH_BIT = 0x2;
private ResponseFlag() {
// Make it so this class cannot be constructed.
}
static boolean isError(final byte flag) {
return (flag & ERROR_BIT) != 0;
}
static boolean isLength(final byte flag) {
return (flag & LENGTH_BIT) != 0;
}
static byte getLengthSetOnly() {
return LENGTH_BIT;
}
static byte getErrorAndLengthSet() {
return LENGTH_BIT & ERROR_BIT;
}
}