content: /*
   * 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.
   */
  package org.apache.cassandra.index.sasi.sa;
  
  import java.nio.ByteBuffer;
  import java.util.Collections;
  import java.util.Comparator;
  import java.util.Iterator;
  
  import org.apache.cassandra.index.sasi.disk.OnDiskIndexBuilder;
  import org.apache.cassandra.index.sasi.disk.TokenTreeBuilder;
  import org.apache.cassandra.db.marshal.AbstractType;
  import org.apache.cassandra.utils.Pair;
  
  public class IntegralSA extends SA<ByteBuffer>
  {
      public IntegralSA(AbstractType<?> comparator, OnDiskIndexBuilder.Mode mode)
      {
          super(comparator, mode);
      }
  
      public Term<ByteBuffer> getTerm(ByteBuffer termValue, TokenTreeBuilder tokens)
      {
          return new ByteTerm(charCount, termValue, tokens);
      }
  
      public TermIterator finish()
      {
          return new IntegralSuffixIterator();
      }
  
  
      private class IntegralSuffixIterator extends TermIterator
      {
          private final Iterator<Term<ByteBuffer>> termIterator;
  
          public IntegralSuffixIterator()
          {
              Collections.sort(terms, new Comparator<Term<?>>()
              {
                  public int compare(Term<?> a, Term<?> b)
                  {
                      return a.compareTo(comparator, b);
                  }
              });
  
              termIterator = terms.iterator();
          }
  
          public ByteBuffer minTerm()
          {
              return terms.get(0).getTerm();
          }
  
          public ByteBuffer maxTerm()
          {
              return terms.get(terms.size() - 1).getTerm();
          }
  
          protected Pair<IndexedTerm, TokenTreeBuilder> computeNext()
          {
              if (!termIterator.hasNext())
                  return endOfData();
  
              Term<ByteBuffer> term = termIterator.next();
              return Pair.create(new IndexedTerm(term.getTerm(), false), term.getTokens().finish());
          }
      }
  }
  