示例#1
0
 public override FieldsProducer FieldsProducer(SegmentReadState state)
 {
     PostingsReaderBase postingsReader = new Lucene41PostingsReader(state.Directory, state.FieldInfos,
         state.SegmentInfo, state.Context, state.SegmentSuffix);
     bool success = false;
     try
     {
         FieldsProducer ret = new FSTTermsReader(state, postingsReader);
         success = true;
         return ret;
     }
     finally
     {
         if (!success)
         {
             IOUtils.CloseWhileHandlingException(postingsReader);
         }
     }
 }
示例#2
0
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public org.apache.lucene.codecs.FieldsProducer fieldsProducer(org.apache.lucene.index.SegmentReadState state) throws java.io.IOException
        public override FieldsProducer fieldsProducer(SegmentReadState state)
        {
            PostingsReaderBase postingsReader = new Lucene41PostingsReader(state.directory, state.fieldInfos, state.segmentInfo, state.context, state.segmentSuffix);
            bool success = false;

            try
            {
                FieldsProducer ret = new FSTTermsReader(state, postingsReader);
                success = true;
                return(ret);
            }
            finally
            {
                if (!success)
                {
                    IOUtils.closeWhileHandlingException(postingsReader);
                }
            }
        }
 public override FieldsProducer FieldsProducer(SegmentReadState state)
 {
     PostingsReaderBase docsReader = null;
     PostingsReaderBase pulsingReader = null;
     bool success = false;
     try
     {
         docsReader = _wrappedPostingsBaseFormat.PostingsReaderBase(state);
         pulsingReader = new PulsingPostingsReader(state, docsReader);
         FieldsProducer ret = new FSTTermsReader(state, pulsingReader);
         success = true;
         return ret;
     }
     finally
     {
         if (!success)
         {
             IOUtils.CloseWhileHandlingException(docsReader, pulsingReader);
         }
     }
 }
示例#4
0
        public override FieldsProducer FieldsProducer(SegmentReadState state)
        {
            string     seedFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, SEED_EXT);
            IndexInput @in          = state.Directory.OpenInput(seedFileName, state.Context);
            long       seed         = @in.ReadInt64();

            if (LuceneTestCase.Verbose)
            {
                Console.WriteLine("MockRandomCodec: reading from seg=" + state.SegmentInfo.Name + " formatID=" + state.SegmentSuffix + " seed=" + seed);
            }
            @in.Dispose();

            Random random = new J2N.Randomizer(seed);

            int readBufferSize = TestUtil.NextInt32(random, 1, 4096);

            if (LuceneTestCase.Verbose)
            {
                Console.WriteLine("MockRandomCodec: readBufferSize=" + readBufferSize);
            }

            PostingsReaderBase postingsReader;

            if (random.NextBoolean())
            {
                if (LuceneTestCase.Verbose)
                {
                    Console.WriteLine("MockRandomCodec: reading Sep postings");
                }
                postingsReader = new SepPostingsReader(state.Directory, state.FieldInfos, state.SegmentInfo,
                                                       state.Context, new MockInt32StreamFactory(random), state.SegmentSuffix);
            }
            else
            {
                if (LuceneTestCase.Verbose)
                {
                    Console.WriteLine("MockRandomCodec: reading Standard postings");
                }
                postingsReader = new Lucene41PostingsReader(state.Directory, state.FieldInfos, state.SegmentInfo, state.Context, state.SegmentSuffix);
            }

            if (random.NextBoolean())
            {
                int totTFCutoff = TestUtil.NextInt32(random, 1, 20);
                if (LuceneTestCase.Verbose)
                {
                    Console.WriteLine("MockRandomCodec: reading pulsing postings with totTFCutoff=" + totTFCutoff);
                }
                postingsReader = new PulsingPostingsReader(state, postingsReader);
            }

            FieldsProducer fields;
            int            t1 = random.Next(4);

            if (t1 == 0)
            {
                bool success = false;
                try
                {
                    fields  = new FSTTermsReader(state, postingsReader);
                    success = true;
                }
                finally
                {
                    if (!success)
                    {
                        postingsReader.Dispose();
                    }
                }
            }
            else if (t1 == 1)
            {
                bool success = false;
                try
                {
                    fields  = new FSTOrdTermsReader(state, postingsReader);
                    success = true;
                }
                finally
                {
                    if (!success)
                    {
                        postingsReader.Dispose();
                    }
                }
            }
            else if (t1 == 2)
            {
                // Use BlockTree terms dict
                if (LuceneTestCase.Verbose)
                {
                    Console.WriteLine("MockRandomCodec: reading BlockTree terms dict");
                }

                bool success = false;
                try
                {
                    fields = new BlockTreeTermsReader(state.Directory,
                                                      state.FieldInfos,
                                                      state.SegmentInfo,
                                                      postingsReader,
                                                      state.Context,
                                                      state.SegmentSuffix,
                                                      state.TermsIndexDivisor);
                    success = true;
                }
                finally
                {
                    if (!success)
                    {
                        postingsReader.Dispose();
                    }
                }
            }
            else
            {
                if (LuceneTestCase.Verbose)
                {
                    Console.WriteLine("MockRandomCodec: reading Block terms dict");
                }
                TermsIndexReaderBase indexReader;
                bool success = false;
                try
                {
                    bool doFixedGap = random.NextBoolean();

                    // randomness diverges from writer, here:
                    if (state.TermsIndexDivisor != -1)
                    {
                        state.TermsIndexDivisor = TestUtil.NextInt32(random, 1, 10);
                    }

                    if (doFixedGap)
                    {
                        // if termsIndexDivisor is set to -1, we should not touch it. It means a
                        // test explicitly instructed not to load the terms index.
                        if (LuceneTestCase.Verbose)
                        {
                            Console.WriteLine("MockRandomCodec: fixed-gap terms index (divisor=" + state.TermsIndexDivisor + ")");
                        }
                        indexReader = new FixedGapTermsIndexReader(state.Directory,
                                                                   state.FieldInfos,
                                                                   state.SegmentInfo.Name,
                                                                   state.TermsIndexDivisor,
                                                                   BytesRef.UTF8SortedAsUnicodeComparer,
                                                                   state.SegmentSuffix, state.Context);
                    }
                    else
                    {
                        int n2 = random.Next(3);
                        if (n2 == 1)
                        {
                            random.Next();
                        }
                        else if (n2 == 2)
                        {
                            random.NextInt64();
                        }
                        if (LuceneTestCase.Verbose)
                        {
                            Console.WriteLine("MockRandomCodec: variable-gap terms index (divisor=" + state.TermsIndexDivisor + ")");
                        }
                        indexReader = new VariableGapTermsIndexReader(state.Directory,
                                                                      state.FieldInfos,
                                                                      state.SegmentInfo.Name,
                                                                      state.TermsIndexDivisor,
                                                                      state.SegmentSuffix, state.Context);
                    }

                    success = true;
                }
                finally
                {
                    if (!success)
                    {
                        postingsReader.Dispose();
                    }
                }

                success = false;
                try
                {
                    fields = new BlockTermsReader(indexReader,
                                                  state.Directory,
                                                  state.FieldInfos,
                                                  state.SegmentInfo,
                                                  postingsReader,
                                                  state.Context,
                                                  state.SegmentSuffix);
                    success = true;
                }
                finally
                {
                    if (!success)
                    {
                        try
                        {
                            postingsReader.Dispose();
                        }
                        finally
                        {
                            indexReader.Dispose();
                        }
                    }
                }
            }

            return(fields);
        }