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
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/**
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.ipc;
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/**
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* Utility for managing the flag byte passed in response to a
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* {@link HBaseServer.Call}
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*/
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class ResponseFlag {
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private static final byte ERROR_BIT = 0x1;
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private static final byte LENGTH_BIT = 0x2;
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private ResponseFlag() {
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// Make it so this class cannot be constructed.
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}
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static boolean isError(final byte flag) {
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return (flag & ERROR_BIT) != 0;
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}
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static boolean isLength(final byte flag) {
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return (flag & LENGTH_BIT) != 0;
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}
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static byte getLengthSetOnly() {
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return LENGTH_BIT;
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}
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static byte getErrorAndLengthSet() {
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return LENGTH_BIT & ERROR_BIT;
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}
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}
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