/**
* 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 CAS044DataRecord
* and collections of CAS044DataRecords.
*
* - Used for formatting source data and testing it can be loaded to and
* retrieved from a formatted file.
* - Developed for MoSeS.
* - Copyright (C) 2006 Andy Turner, University of Leeds.
*
*
* @author Andy
* Turner
* @version 1.0.0, 2007-05-24
* @see AbstractCASDataRecord
*/
public class CAS044DataHandler extends AbstractCASDataHandler {
/**
* Creates a new instance of CAS044DataHandler for handling
* CAS044DataRecords stored in a formatted File The default
* File is hard coded. To specify the File use
* CAS044DataHandler(File). To set a different default
* File edit the source code and recompile.
*/
public CAS044DataHandler() throws IOException {
// this( new File(
// "C:/Work/Projects/MoSeS/Workspace/CAS044DataRecords.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, "CAS044DataRecords.dat");
if (!this._File.exists()) {
this._File.createNewFile();
}
this._RecordLength = new CAS044DataRecord().getSizeInBytes();
// System.out.println("this.recordLength " + this.recordLength);
this._RandomAccessFile = new RandomAccessFile(this._File, "r");
}
/**
* Creates a new instance of CAS044DataHandler with Records loaded from
* formattedFile.
*
* @param formattedFile
* Formatted file of CAS044DataRecords
*/
public CAS044DataHandler(File formattedFile) throws IOException {
// initMemoryReserve();
this.init(formattedFile.getParentFile());
this._RecordLength = new CAS044DataRecord().getSizeInBytes();
load(formattedFile);
System.out.println("CAS044DataRecords loaded successfully");
}
/**
* 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");
File infile;
long long0 = 0L;
long RecordID = 0L;
// Load England
infile = new File(
directory,
"CAS044EnglandOA.csv");
RecordID = format(infile, RecordID);
System.out.println(infile.toString() + " formatted successfully " + RecordID + " records"); // 165665
long0 = RecordID;
// Load Wales
infile = new File(
directory,
"CAS044WalesOA.csv");
RecordID = format(infile, RecordID);
System.out.println(infile.toString() + " formatted successfully " + (RecordID - long0) + " records"); // 9769
long0 = RecordID;
// Load Scotland
infile = new File(
directory,
"CAS044ScotlandOA.csv");
RecordID = format(infile, RecordID);
System.out.println(infile.toString() + " formatted successfully " + (RecordID - long0) + " records"); // 42604
long0 = RecordID;
// Table not available for Northern Ireland
print(20, new Random());
}
/**
* Uses a BufferedReader and a StreamTokenizer to
* read lines from the sourceFile File. The lines are converted
* to CAS044DataRecords and written to
* this._RandomAccessFile.
*
* @param sourceFile
* The source CAS044DataRecords file to be formatted and written
* to this._RandomAccessFile.
* @param RecordID
* The RecordID to assign to the first
* CAS044DataRecord.
* @return The RecordID assigned to the last
* CAS044DataRecords.
*/
protected long format(File sourceFile, long RecordID) throws IOException {
System.out.println("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;
CAS044DataRecord aCAS044DataRecord = new CAS044DataRecord();
boolean print = false;
int int10000 = 10000;
// 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 % int10000;
print = (long0 == longZero);
if (print) {
string2 = aCAS044DataRecord.toString();
System.out.println(string2);
string2 = string0;
}
// Write out
aCAS044DataRecord.write(_RandomAccessFile);
RecordID++;
break;
case StreamTokenizer.TT_WORD:
string1 = aStreamTokenizer.sval;
aCAS044DataRecord = new CAS044DataRecord(RecordID, string1);
break;
}
string1 = string0;
tokenType = aStreamTokenizer.nextToken();
}
System.out.println("Number of Records loaded = " + RecordID);
return RecordID;
}
/**
* @return a CAS044DataRecord with
* AbstractCASDataRecord.RecordID = RecordID
* @param RecordID
* The RecordID of the CAS044DataRecord to be returned.
*/
public AbstractCASDataRecord getDataRecord(long RecordID) {
return getCAS044DataRecord(RecordID);
}
/**
* @return a CAS044DataRecord with
* CAS044DataRecord.RecordID = RecordID
* @param RecordID
* The RecordID of the CAS044DataRecord to be returned.
*/
public CAS044DataRecord getCAS044DataRecord(long RecordID) {
CAS044DataRecord result = null;
try {
this._RandomAccessFile.seek(_RecordLength * RecordID);
result = new CAS044DataRecord(this._RandomAccessFile);
} catch (IOException aIOException) {
log(aIOException.getLocalizedMessage());
System.exit(ErrorAndExceptionHandler.IOException);
}
return result;
}
/**
* Aggregates CAS044DataRecords 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();
CAS044DataRecord aCAS044DataRecord;
CAS044DataRecord bCAS044DataRecord;
String zoneCode;
Object zoneCodeWard;
// long newRecordID = startRecordIDForLeeds - 1L;
long newRecordID = -1L;
for (long RecordID = startRecordID; RecordID < endRecordID; RecordID++) {
aCAS044DataRecord = (CAS044DataRecord) getDataRecord(RecordID);
zoneCode = new String(aCAS044DataRecord.getZone_Code());
zoneCodeWard = zoneCode.substring(0, 6);
if (result.containsKey(zoneCodeWard)) {
bCAS044DataRecord = (CAS044DataRecord) result.get(zoneCodeWard);
result.remove(zoneCodeWard);
result.put(zoneCodeWard, aCAS044DataRecord.aggregate(bCAS044DataRecord));
} else {
result.put(zoneCodeWard, aCAS044DataRecord);
}
}
write(aRandomAccessFile, result);
}
/**
* Aggregates CAS044DataRecords 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();
CAS044DataRecord aCAS044DataRecord;
CAS044DataRecord bCAS044DataRecord;
String zoneCode;
Object zoneCodeMSOA;
// long newRecordID = startRecordIDForLeeds - 1L;
long newRecordID = -1L;
for (long RecordID = startRecordID; RecordID < endRecordID; RecordID++) {
aCAS044DataRecord = (CAS044DataRecord) getDataRecord(RecordID);
zoneCode = new String(aCAS044DataRecord.getZone_Code());
zoneCodeMSOA = lookUpMSOAfromOAHashMap.get(zoneCode);
if (result.containsKey(zoneCodeMSOA)) {
bCAS044DataRecord = (CAS044DataRecord) result.get(zoneCodeMSOA);
result.remove(zoneCodeMSOA);
result.put(zoneCodeMSOA, aCAS044DataRecord.aggregate(bCAS044DataRecord));
} else {
result.put(zoneCodeMSOA, aCAS044DataRecord);
}
}
write(aRandomAccessFile, result);
}
}