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ASF GitHub Bot commented on DRILL-5432: --------------------------------------- Github user dmitriyHavrilovich commented on a diff in the pull request: https://github.com/apache/drill/pull/831#discussion_r124219513 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/store/pcap/Utils.java --- @@ -0,0 +1,65 @@ +/* + * 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 + * <p> + * http://www.apache.org/licenses/LICENSE-2.0 + * <p> + * 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; + +import com.google.common.primitives.Ints; +import com.google.common.primitives.Shorts; + +public class Utils { + + public static int getIntFileOrder(boolean byteOrder, final byte[] buf, final int offset) { + if (byteOrder) { --- End diff -- Comment will be added here, explaining this case > 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 -- This message was sent by Atlassian JIRA (v6.4.14#64029)