1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.hadoop.hbase.codec.prefixtree.encode; 20 21 import java.io.OutputStream; 22 23 import org.apache.hadoop.hbase.classification.InterfaceAudience; 24 25 /** 26 * Retrieve PrefixTreeEncoders from this factory which handles pooling them and preparing the 27 * ones retrieved from the pool for usage. 28 */ 29 @InterfaceAudience.Private 30 public class EncoderFactory { 31 32 private static final EncoderPool POOL = new EncoderPoolImpl(); 33 34 35 public static PrefixTreeEncoder checkOut(OutputStream outputStream, boolean includeMvccVersion) { 36 return POOL.checkOut(outputStream, includeMvccVersion); 37 } 38 39 public static void checkIn(PrefixTreeEncoder encoder) { 40 POOL.checkIn(encoder); 41 } 42 43 44 /**************************** helper ******************************/ 45 46 protected static PrefixTreeEncoder prepareEncoder(PrefixTreeEncoder encoder, 47 OutputStream outputStream, boolean includeMvccVersion) { 48 PrefixTreeEncoder ret = encoder; 49 if (encoder == null) { 50 ret = new PrefixTreeEncoder(outputStream, includeMvccVersion); 51 } 52 ret.reset(outputStream, includeMvccVersion); 53 return ret; 54 } 55 56 }