content: 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.
   */
  
  import java.io.IOException;
  
  /** Used by DocumentsWriter to maintain per-thread state.
   *  We keep a separate Posting hash and other state for each
   *  thread and then merge postings hashes from all threads
   *  when writing the segment. */
  final class DocumentsWriterThreadState {
  
    boolean isIdle = true;                          // false if this is currently in use by a thread
    int numThreads = 1;                             // Number of threads that share this instance
    final DocConsumerPerThread consumer;
    final DocumentsWriter.DocState docState;
  
    final DocumentsWriter docWriter;
  
    public DocumentsWriterThreadState(DocumentsWriter docWriter) throws IOException {
      this.docWriter = docWriter;
      docState = new DocumentsWriter.DocState();
      docState.maxFieldLength = docWriter.maxFieldLength;
      docState.infoStream = docWriter.infoStream;
      docState.similarity = docWriter.similarity;
      docState.docWriter = docWriter;
      consumer = docWriter.consumer.addThread(this);
    }
  
    void doAfterFlush() {
      numThreads = 0;
    }
  }
  