edu.umn.cs.spatialHadoop.operations

Class FileMBR

java.lang.Object

edu.umn.cs.spatialHadoop.operations.FileMBR

public class FileMBR
extends java.lang.Object

Finds the minimal bounding rectangle for a file.

Author:

Ahmed Eldawy

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FileMBR.Combine
static class	FileMBR.FileMBRMapper
static class	FileMBR.MBROutputCommitter This output committer caches the MBR calculated for the input file such that subsequent calls to FileMBR will return the answer right away.
static class	FileMBR.Reduce

Field Summary

Fields

Modifier and Type	Field and Description
static RunningJob	lastSubmittedJob Last submitted MBR MapReduce job
static long	sizeOfLastProcessedFile Keeps track of the size of last processed file.

Constructor Summary

Constructors

Constructor and Description
FileMBR()

Method Summary

Methods

Modifier and Type	Method and Description
static Partition	fileMBR(Path[] files, OperationsParams params)
static Partition	fileMBR(Path file, OperationsParams params)
static void	main(java.lang.String[] args)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

sizeOfLastProcessedFile

public static long sizeOfLastProcessedFile

Keeps track of the size of last processed file. Used to determine the uncompressed size of a file which is helpful to calculate the number of required partitions to index a file.

lastSubmittedJob

public static RunningJob lastSubmittedJob

Last submitted MBR MapReduce job

Constructor Detail

FileMBR

public FileMBR()

Method Detail

fileMBR

public static Partition fileMBR(Path file,
                OperationsParams params)
                         throws java.io.IOException

Throws:

java.io.IOException

fileMBR

public static Partition fileMBR(Path[] files,
                OperationsParams params)
                         throws java.io.IOException

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Parameters:

args -

Throws:

java.io.IOException