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;
  
  import org.apache.lucene.store.Directory;
  import org.apache.lucene.util.IOUtils;
  
  final class FormatPostingsFieldsWriter extends FormatPostingsFieldsConsumer {
  
    final Directory dir;
    final String segment;
    TermInfosWriter termsOut;
    final FieldInfos fieldInfos;
    FormatPostingsTermsWriter termsWriter;
    final DefaultSkipListWriter skipListWriter;
    final int totalNumDocs;
  
    public FormatPostingsFieldsWriter(SegmentWriteState state, FieldInfos fieldInfos) throws IOException {
      dir = state.directory;
      segment = state.segmentName;
      totalNumDocs = state.numDocs;
      this.fieldInfos = fieldInfos;
      boolean success = false;
      try {
        termsOut = new TermInfosWriter(dir, segment, fieldInfos, state.termIndexInterval);
        
        // TODO: this is a nasty abstraction violation (that we
        // peek down to find freqOut/proxOut) -- we need a
        // better abstraction here whereby these child consumers
        // can provide skip data or not
        skipListWriter = new DefaultSkipListWriter(termsOut.skipInterval,
            termsOut.maxSkipLevels, totalNumDocs, null, null);
        
        termsWriter = new FormatPostingsTermsWriter(state, this);
        success = true;
      } finally {
        if (!success) {
          IOUtils.closeWhileHandlingException(termsOut, termsWriter);
        }
      }
    }
  
    /** Add a new field */
    @Override
    FormatPostingsTermsConsumer addField(FieldInfo field) {
      termsWriter.setField(field);
      return termsWriter;
    }
  
    /** Called when we are done adding everything. */
    @Override
    void finish() throws IOException {
      IOUtils.close(termsOut, termsWriter);
    }
  }
  