package org.apache.lucene.index; /** * 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. */ final class CharBlockPool { public char[][] buffers = new char[10][]; int numBuffer; int bufferUpto = -1; // Which buffer we are upto public int charUpto = DocumentsWriter.CHAR_BLOCK_SIZE; // Where we are in head buffer public char[] buffer; // Current head buffer public int charOffset = -DocumentsWriter.CHAR_BLOCK_SIZE; // Current head offset final private DocumentsWriter docWriter; public CharBlockPool(DocumentsWriter docWriter) { this.docWriter = docWriter; } public void reset() { docWriter.recycleCharBlocks(buffers, 1+bufferUpto); bufferUpto = -1; charUpto = DocumentsWriter.CHAR_BLOCK_SIZE; charOffset = -DocumentsWriter.CHAR_BLOCK_SIZE; } public void nextBuffer() { if (1+bufferUpto == buffers.length) { char[][] newBuffers = new char[(int) (buffers.length*1.5)][]; System.arraycopy(buffers, 0, newBuffers, 0, buffers.length); buffers = newBuffers; } buffer = buffers[1+bufferUpto] = docWriter.getCharBlock(); bufferUpto++; charUpto = 0; charOffset += DocumentsWriter.CHAR_BLOCK_SIZE; } }