/*
* 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.nifi.processors.evtx.parser;
import com.google.common.primitives.UnsignedLong;
import org.apache.nifi.processors.evtx.parser.bxml.RootNode;
import java.io.IOException;
import java.util.Date;
/**
* Individual event, pretty much a wrapper for the RootNode
*/
public class Record extends Block {
private final int magicNumber;
private final int size;
private final UnsignedLong recordNum;
private final Date timestamp;
private final RootNode rootNode;
private final int size2;
public Record(BinaryReader binaryReader, ChunkHeader chunkHeader) throws IOException {
super(binaryReader, chunkHeader.getOffset() + binaryReader.getPosition());
magicNumber = NumberUtil.intValueExpected(binaryReader.readDWord(), 10794, "Invalid magic number.");
size = NumberUtil.intValueMax(binaryReader.readDWord(), 0x10000, "Invalid size.");
recordNum = binaryReader.readQWord();
timestamp = binaryReader.readFileTime();
rootNode = new RootNode(binaryReader, chunkHeader, null);
int desiredPosition = getInitialPosition() + size - 4;
int skipAmount = desiredPosition - binaryReader.getPosition();
if (skipAmount > 0) {
binaryReader.skip(skipAmount);
}
size2 = NumberUtil.intValueExpected(binaryReader.readDWord(), size, "Size 2 doesn't match.");
}
@Override
public String toString() {
return "Record{" +
"magicNumber=" + magicNumber +
", size=" + size +
", recordNum=" + recordNum +
", timestamp=" + timestamp +
", rootNode=" + rootNode +
", size2=" + size2 +
'}';
}
public UnsignedLong getRecordNum() {
return recordNum;
}
public RootNode getRootNode() {
return rootNode;
}
}