/**
* A component of a library for
* MoSeS.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
package uk.ac.leeds.ccg.andyt.projects.moses.io;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.RandomAccessFile;
import java.io.StreamTokenizer;
import java.util.HashMap;
import java.util.Random;
import java.util.TreeMap;
import uk.ac.leeds.ccg.andyt.projects.moses.utilities.ErrorAndExceptionHandler;
import uk.ac.leeds.ccg.andyt.projects.moses.utilities.StaticIO;
/**
* A class
for handling an individual
* CASKS09bDataRecord
and collections of
* CASKS09bDataRecords
.
*
CASKS09bDataHandler
for handling
* CASKS09bDataRecords stored in a formatted File
The default
* File
is hard coded. To specify the File
use
* CASKS09bDataHandler(File)
. To set a different default
* File
edit the source code and recompile.
*/
public CASKS09bDataHandler() throws IOException {
// this( new File(
// "C:/Work/Projects/MoSeS/Workspace/CASKS09bDataRecords.dat" ) );
// Want also to setDirectory();
// initMemoryReserve();
// Default this.directory, this.file, this.randomAccessFile
File directory = new File("C:/Work/Projects/MoSeS/Workspace/");
this.init(directory);
this._File = new File(directory, "CASKS09bDataRecords.dat");
if (!this._File.exists()) {
this._File.createNewFile();
}
this._RecordLength = new CASKS09bDataRecord().getSizeInBytes();
// log("this.recordLength " + this.recordLength);
this._RandomAccessFile = new RandomAccessFile(this._File, "r");
}
/**
* Creates a new instance of CASKS09bDataHandler with Records loaded from
* formattedFile.
*
* @param formattedFile
* Formatted file of CASKS09bDataRecords
*/
public CASKS09bDataHandler(File formattedFile) {
// initMemoryReserve();
this.init(formattedFile.getParentFile());
this._RecordLength = new CASKS09bDataRecord().getSizeInBytes();
load(formattedFile);
log("CASKS09bDataRecords loaded successfully");
}
/**
* @param args
* the command line arguments No arguments are used.
*/
public static void main(String[] args) throws IOException {
CASKS09bDataHandler aCASKS09bDataHandler = new CASKS09bDataHandler();
aCASKS09bDataHandler.run();
}
/**
* Top level run method
*/
private void run() throws IOException {
// run1( true, 20 );
// run1( false, 20 );
run2(20);
}
/**
* Loads CASKS09bDataRecords
and prints out n randomly
*
* @param loadFromSource
* If true, data is loaded from hardcoded source files as
* downloaded from casweb. Otherwise, data is loaded from
* this.formattedFile
* @param n
* The number of loaded data records to print out.
*/
private void run2(int n) throws IOException {
File file = new File(
"C:/Work/Projects/MoSeS/Workspace/Leeds/MSOA/CASKS09bDataRecords.dat");
load(file);
print(n, new Random());
}
/**
* Loads CAS001DataRecords
and prints out n randomly
* @param directory to load source data from
* @param n the number of loaded data records to print out.
*/
protected void formatSourceData(
File directory,
int n)
throws IOException {
_RandomAccessFile = new RandomAccessFile(this._File, "rw");
// Load from source
File infile;
long long0 = 0L;
long RecordID = 0L;
// Load England
infile = new File(
directory,
"KS09bEnglandOA.csv");
RecordID = format(infile, RecordID);
log(infile.toString() + " formatted successfully " + RecordID + " records"); // 165665
long0 = RecordID;
// Load Wales
infile = new File(
directory,
"KS09bWalesOA.csv");
RecordID = format(infile, RecordID);
log(infile.toString() + " formatted successfully " + (RecordID - long0) + " records"); // 9769
long0 = RecordID;
// Load Scotland
infile = new File(
directory,
"KS09bScotlandOA.csv");
RecordID = format(infile, RecordID);
log(infile.toString() + " formatted successfully " + (RecordID - long0) + " records"); // 42604
long0 = RecordID;
// Load Northern Ireland
infile = new File(
directory,
"KS09bNorthernIrelandOA.csv");
RecordID = format(infile, RecordID);
log(infile.toString() + " formatted successfully " + (RecordID - long0) + " records"); // 5022
_RandomAccessFile.close();
load(_File);
print(20, new Random());
}
/**
* Uses a BufferedReader and a StreamTokenizer
to
* read lines from the sourceFile File
. The lines are converted
* to CASKS09bDataRecords
and written to
* this.tRandomAccessFile
.
*
* @param sourceFile
* The source CASKS09bDataRecords file to be formatted and
* written to this.tRandomAccessFile
.
* @param RecordID
* The RecordID
to assign to the first
* CASKS09bDataRecord
.
* @return The RecordID
assigned to the last
* CASKS09bDataRecords
.
*/
protected long format(File sourceFile, long RecordID) throws IOException {
log("format( File( " + sourceFile.toString() + " ), RecordID( " + RecordID + " ))");
BufferedReader aBufferedReader = new BufferedReader(
new InputStreamReader(new FileInputStream(sourceFile)));
StreamTokenizer aStreamTokenizer = new StreamTokenizer(aBufferedReader);
StaticIO.setStreamTokenizerSyntax1(aStreamTokenizer);
String string0 = new String();
String string1;
String string2;
long long0;
long longZero = 0L;
CASKS09bDataRecord aCASKS09bDataRecord = new CASKS09bDataRecord();
boolean print = false;
int int1000 = 1000;
// Skip the first line
int tokenType = aStreamTokenizer.nextToken();
while (tokenType != StreamTokenizer.TT_EOL) {
tokenType = aStreamTokenizer.nextToken();
}
tokenType = aStreamTokenizer.nextToken();
while (tokenType != StreamTokenizer.TT_EOF) {
switch (tokenType) {
case StreamTokenizer.TT_EOL:
long0 = RecordID % int1000;
print = (long0 == longZero);
if (print) {
string2 = aCASKS09bDataRecord.toString();
log(string2);
string2 = string0;
}
// Write out
aCASKS09bDataRecord.write(_RandomAccessFile);
RecordID++;
break;
case StreamTokenizer.TT_WORD:
string1 = aStreamTokenizer.sval;
aCASKS09bDataRecord = new CASKS09bDataRecord(RecordID, string1);
break;
}
string1 = string0;
tokenType = aStreamTokenizer.nextToken();
}
log("Number of Records loaded = " + RecordID);
return RecordID;
}
/**
* @return a CASKS09bDataRecord
with
* AbstractCASDataRecord.RecordID = RecordID
* @param RecordID
* The RecordID of the CASKS09bDataRecord to be returned.
*/
public AbstractCASDataRecord getDataRecord(long RecordID) {
return getCASKS09bDataRecord(RecordID);
}
/**
* @return a CASKS09bDataRecord
with
* CASKS09bDataRecord.RecordID = RecordID
* @param RecordID
* The RecordID of the CASKS09bDataRecord to be returned.
*/
public CASKS09bDataRecord getCASKS09bDataRecord(long RecordID) {
CASKS09bDataRecord result = null;
try {
this._RandomAccessFile.seek(_RecordLength * RecordID);
result = new CASKS09bDataRecord(this._RandomAccessFile);
} catch (IOException aIOException) {
System.err.println(aIOException.getLocalizedMessage());
System.exit(ErrorAndExceptionHandler.IOException);
}
return result;
}
/**
* Aggregates CASKS09bDataRecords
from OA To Ward for the OA
* records in the range [startRecordID,endRecordID] and writes the results
* to aRandomAccessFile
*
* @param aRandomAccessFile
* RandomAccessFile
to which results are written
* @param startRecordID
* The first OA RecordID in the sequence to be aggregated.
* @param endRecordID
* The last OA RecordID in the sequence to be aggregated.
*/
public void aggregateOAToWard(RandomAccessFile aRandomAccessFile,
long startRecordID, long endRecordID) throws IOException {
TreeMap result = new TreeMap();
CASKS09bDataRecord aCASKS09bDataRecord;
CASKS09bDataRecord bCASKS09bDataRecord;
String zoneCode;
Object zoneCodeWard;
// long newRecordID = startRecordIDForLeeds - 1L;
long newRecordID = -1L;
for (long RecordID = startRecordID; RecordID < endRecordID; RecordID++) {
aCASKS09bDataRecord = (CASKS09bDataRecord) getDataRecord(RecordID);
zoneCode = new String(aCASKS09bDataRecord.getZone_Code());
zoneCodeWard = zoneCode.substring(0, 6);
if (result.containsKey(zoneCodeWard)) {
bCASKS09bDataRecord = (CASKS09bDataRecord) result.get(zoneCodeWard);
result.remove(zoneCodeWard);
result.put(zoneCodeWard, aCASKS09bDataRecord.aggregate(bCASKS09bDataRecord));
} else {
result.put(zoneCodeWard, aCASKS09bDataRecord);
}
}
write(aRandomAccessFile, result);
}
/**
* Aggregates CASKS09bDataRecords
from OA To MSOA for the OA
* records in the range [startRecordID,endRecordID] and writes the results
* to aRandomAccessFile
*
* @param aRandomAccessFile
* RandomAccessFile
to which results are written
* @param startRecordID
* The first OA RecordID in the sequence to be aggregated.
* @param endRecordID
* The last OA RecordID in the sequence to be aggregated.
*/
public void aggregateOAToMSOA(RandomAccessFile aRandomAccessFile,
long startRecordID, long endRecordID) throws IOException {
TreeMap result = new TreeMap();
HashMap lookUpMSOAfromOAHashMap = get_LookUpMSOAfromOAHashMap();
CASKS09bDataRecord aCASKS09bDataRecord;
CASKS09bDataRecord bCASKS09bDataRecord;
String zoneCode;
Object zoneCodeMSOA;
// long newRecordID = startRecordIDForLeeds - 1L;
long newRecordID = -1L;
for (long RecordID = startRecordID; RecordID < endRecordID; RecordID++) {
aCASKS09bDataRecord = (CASKS09bDataRecord) getDataRecord(RecordID);
zoneCode = new String(aCASKS09bDataRecord.getZone_Code());
zoneCodeMSOA = lookUpMSOAfromOAHashMap.get(zoneCode);
if (result.containsKey(zoneCodeMSOA)) {
bCASKS09bDataRecord = (CASKS09bDataRecord) result.get(zoneCodeMSOA);
result.remove(zoneCodeMSOA);
result.put(zoneCodeMSOA, aCASKS09bDataRecord.aggregate(bCASKS09bDataRecord));
} else {
result.put(zoneCodeMSOA, aCASKS09bDataRecord);
}
}
write(aRandomAccessFile, result);
}
}