[ 
https://issues.apache.org/jira/browse/DRILL-5432?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16024073#comment-16024073
 ] 

ASF GitHub Bot commented on DRILL-5432:
---------------------------------------

Github user parthchandra commented on a diff in the pull request:

    https://github.com/apache/drill/pull/831#discussion_r118406626
  
    --- Diff: 
exec/java-exec/src/main/java/org/apache/drill/exec/store/pcap/dto/ColumnDto.java
 ---
    @@ -0,0 +1,63 @@
    +/*
    + * 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.drill.exec.store.pcap.dto;
    +
    +import org.apache.drill.exec.store.pcap.schema.PcapTypes;
    +
    +import java.util.Objects;
    +
    +public class ColumnDto {
    +
    +  private final String columnName;
    +  private final PcapTypes columnType;
    +
    +  public ColumnDto(String columnName, PcapTypes columnType) {
    +    this.columnName = columnName;
    +    this.columnType = columnType;
    +  }
    +
    +  public String getColumnName() {
    +    return columnName;
    +  }
    +
    +  public PcapTypes getColumnType() {
    +    return columnType;
    +  }
    +
    +  public boolean isNullable() {
    +    return true;
    +  }
    +
    +  @Override
    +  public boolean equals(Object o) {
    +    if (this == o) {
    +      return true;
    +    }
    +    if (o == null || getClass() != o.getClass()) {
    +      return false;
    +    }
    +    ColumnDto columnDto = (ColumnDto) o;
    +    return Objects.equals(columnName, columnDto.columnName) &&
    --- End diff --
    
    OK, my mistake. The code is `Objects.equals` and not `Object.equals` so is 
in fact correct.


> Want a memory format for PCAP files
> -----------------------------------
>
>                 Key: DRILL-5432
>                 URL: https://issues.apache.org/jira/browse/DRILL-5432
>             Project: Apache Drill
>          Issue Type: New Feature
>            Reporter: Ted Dunning
>
> PCAP files [1] are the de facto standard for storing network capture data. In 
> security and protocol applications, it is very common to want to extract 
> particular packets from a capture for further analysis.
> At a first level, it is desirable to query and filter by source and 
> destination IP and port or by protocol. Beyond that, however, it would be 
> very useful to be able to group packets by TCP session and eventually to look 
> at packet contents. For now, however, the most critical requirement is that 
> we should be able to scan captures at very high speed.
> I previously wrote a (kind of working) proof of concept for a PCAP decoder 
> that did lazy deserialization and could traverse hundreds of MB of PCAP data 
> per second per core. This compares to roughly 2-3 MB/s for widely available 
> Apache-compatible open source PCAP decoders.
> This JIRA covers the integration and extension of that proof of concept as a 
> Drill file format.
> Initial work is available at https://github.com/mapr-demos/drill-pcap-format
> [1] https://en.wikipedia.org/wiki/Pcap



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