Revision 9524 branches/piloto3d/libraries/libFMap/src/com/iver/cit/gvsig/fmap/drivers/dbf/DbaseFile.java
| DbaseFile.java | ||
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*/ |
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package com.iver.cit.gvsig.fmap.drivers.dbf; |
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|
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/** |
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*/ |
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import java.io.File; |
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import java.nio.ByteBuffer; |
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import java.nio.channels.FileChannel; |
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import java.nio.charset.Charset; |
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import java.text.FieldPosition; |
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import java.text.NumberFormat; |
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import java.util.Calendar; |
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import java.util.Date; |
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import java.util.Locale; |
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import com.iver.utiles.bigfile.BigByteBuffer2; |
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|
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/** |
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* Class to read and write data to a dbase III format file. Creation date: |
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* (5/15/2001 5:15:13 PM) |
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*/ |
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public class DbaseFile {
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// Header information for the DBase File |
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private DbaseFileHeader myHeader; |
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private RandomAccessFile raf; |
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private FileChannel channel; |
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private BigByteBuffer2 buffer; |
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private FileChannel.MapMode mode; |
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private int posActual = -1; |
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// Header information for the DBase File |
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private DbaseFileHeader myHeader; |
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private RandomAccessFile raf; |
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private FileChannel channel; |
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private BigByteBuffer2 buffer; |
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private FileChannel.MapMode mode; |
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private FieldFormatter formatter = new FieldFormatter(); |
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private int posActual = -1; |
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private int recordOffset; |
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private ByteBuffer cachedRecord = null; |
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private byte[] bytesCachedRecord = null; |
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private Charset chars; |
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private final Number NULL_NUMBER = new Integer(0); |
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// Retrieve number of records in the DbaseFile |
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public int getRecordCount() {
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return myHeader.getNumRecords(); |
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} |
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private final String NULL_STRING = ""; |
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/** |
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* DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public int getFieldCount() {
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return myHeader.getNumFields(); |
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} |
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private final String NULL_DATE = " "; |
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/** |
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* DOCUMENT ME! |
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* |
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* @param rowIndex DOCUMENT ME! |
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* @param fieldId DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public boolean getBooleanFieldValue(int rowIndex, int fieldId) {
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int recordOffset = (myHeader.getRecordLength() * rowIndex) + |
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myHeader.getHeaderLength() + 1; |
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private Charset chars; |
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//Se calcula el offset del campo |
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int fieldOffset = 0; |
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/** Utility for formatting Dbase fields. */ |
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public static class FieldFormatter {
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private StringBuffer buffer = new StringBuffer(255); |
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for (int i = 0; i < (fieldId - 1); i++) {
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fieldOffset += myHeader.getFieldLength(i); |
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} |
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private NumberFormat numFormat = NumberFormat |
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.getNumberInstance(Locale.US); |
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buffer.position(recordOffset + fieldOffset);
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private Calendar calendar = Calendar.getInstance(Locale.US);
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char bool = (char) buffer.get();
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private String emtpyString;
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return ((bool == 't') || (bool == 'T') || (bool == 'Y') || |
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(bool == 'y')); |
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} |
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private static final int MAXCHARS = 255; |
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/** |
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* DOCUMENT ME! |
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* |
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* @param rowIndex DOCUMENT ME! |
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* @param fieldId DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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* @throws UnsupportedEncodingException |
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*/ |
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public String getStringFieldValue(int rowIndex, int fieldId) throws UnsupportedEncodingException {
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int fieldOffset = myHeader.getFieldDescription(fieldId).myFieldDataAddress; |
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byte[] data = new byte[myHeader.getFieldLength(fieldId)]; |
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if (rowIndex != posActual) |
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{
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recordOffset = (myHeader.getRecordLength() * rowIndex) + |
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myHeader.getHeaderLength() + 1; |
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/* System.err.println("getStringFieldValue: rowIndex = " + rowIndex);
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System.err.println("recordOffset = " + recordOffset + " fieldOffset=" + fieldOffset); */
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buffer.position(recordOffset); |
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buffer.get(bytesCachedRecord); |
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cachedRecord = ByteBuffer.wrap(bytesCachedRecord); |
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posActual = rowIndex; |
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} |
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public FieldFormatter() {
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// Avoid grouping on number format |
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numFormat.setGroupingUsed(false); |
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// build a 255 white spaces string |
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StringBuffer sb = new StringBuffer(MAXCHARS); |
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sb.setLength(MAXCHARS); |
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for (int i = 0; i < MAXCHARS; i++) {
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sb.setCharAt(i, ' '); |
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} |
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emtpyString = sb.toString(); |
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} |
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public String getFieldString(int size, String s) {
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buffer.replace(0, size, emtpyString); |
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buffer.setLength(size); |
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if (s != null) {
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buffer.replace(0, size, s); |
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if (s.length() <= size) {
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for (int i = s.length(); i < size; i++) {
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buffer.append(' ');
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} |
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} |
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} |
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buffer.setLength(size); |
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return buffer.toString(); |
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} |
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public String getFieldString(Date d) {
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if (d != null) {
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buffer.delete(0, buffer.length()); |
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calendar.setTime(d); |
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int year = calendar.get(Calendar.YEAR); |
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int month = calendar.get(Calendar.MONTH) + 1; // returns 0 |
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// based month? |
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int day = calendar.get(Calendar.DAY_OF_MONTH); |
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if (year < 1000) {
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if (year >= 100) {
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buffer.append("0");
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} else if (year >= 10) {
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buffer.append("00");
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} else {
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buffer.append("000");
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} |
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} |
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buffer.append(year); |
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if (month < 10) {
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buffer.append("0");
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} |
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buffer.append(month); |
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if (day < 10) {
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buffer.append("0");
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} |
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buffer.append(day); |
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} else {
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buffer.setLength(8); |
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buffer.replace(0, 8, emtpyString); |
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} |
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buffer.setLength(8); |
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return buffer.toString(); |
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} |
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public String getFieldString(int size, int decimalPlaces, Number n) {
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buffer.delete(0, buffer.length()); |
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if (n != null) {
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numFormat.setMaximumFractionDigits(decimalPlaces); |
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numFormat.setMinimumFractionDigits(decimalPlaces); |
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numFormat.format(n, buffer, new FieldPosition( |
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NumberFormat.INTEGER_FIELD)); |
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} |
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int diff = size - buffer.length(); |
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if (diff >= 0) {
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while (diff-- > 0) {
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buffer.insert(0, ' '); |
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} |
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} else {
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buffer.setLength(size); |
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} |
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return buffer.toString(); |
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} |
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} |
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// Retrieve number of records in the DbaseFile |
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public int getRecordCount() {
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return myHeader.getNumRecords(); |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public int getFieldCount() {
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return myHeader.getNumFields(); |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @param rowIndex |
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* DOCUMENT ME! |
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* @param fieldId |
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* DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public boolean getBooleanFieldValue(int rowIndex, int fieldId) {
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int recordOffset = (myHeader.getRecordLength() * rowIndex) |
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+ myHeader.getHeaderLength() + 1; |
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// Se calcula el offset del campo |
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int fieldOffset = 0; |
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for (int i = 0; i < (fieldId - 1); i++) {
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fieldOffset += myHeader.getFieldLength(i); |
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} |
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buffer.position(recordOffset + fieldOffset); |
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char bool = (char) buffer.get(); |
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return ((bool == 't') || (bool == 'T') || (bool == 'Y') || (bool == 'y')); |
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} |
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/** |
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* DOCUMENT ME! |
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* |
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* @param rowIndex |
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* DOCUMENT ME! |
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* @param fieldId |
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* DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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* @throws UnsupportedEncodingException |
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*/ |
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public String getStringFieldValue(int rowIndex, int fieldId) |
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throws UnsupportedEncodingException {
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int fieldOffset = myHeader.getFieldDescription(fieldId).myFieldDataAddress; |
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byte[] data = new byte[myHeader.getFieldLength(fieldId)]; |
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if (rowIndex != posActual) {
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recordOffset = (myHeader.getRecordLength() * rowIndex) |
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+ myHeader.getHeaderLength() + 1; |
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/* |
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* System.err.println("getStringFieldValue: rowIndex = " +
|
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* rowIndex); System.err.println("recordOffset = " + recordOffset + "
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* fieldOffset=" + fieldOffset); |
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*/ |
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buffer.position(recordOffset); |
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buffer.get(bytesCachedRecord); |
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cachedRecord = ByteBuffer.wrap(bytesCachedRecord); |
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posActual = rowIndex; |
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} |
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cachedRecord.position(fieldOffset); |
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cachedRecord.get(data); |
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return new String(data, chars.name()); |
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return new String(data, chars.name()); |
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} |
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} |
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// Retrieve the record at the given index |
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public void setFieldValue(int rowIndex, int fieldId, Object obj) |
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throws IOException {
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int fieldOffset = myHeader.getFieldDescription(fieldId).myFieldDataAddress; |
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String str = fieldString(obj, fieldId); |
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byte[] data = new byte[myHeader.getFieldLength(fieldId)]; |
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recordOffset = (myHeader.getRecordLength() * rowIndex) |
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+ myHeader.getHeaderLength() + 1; |
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/* public Object[] getRecord(long inIndex) throws IOException {
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long nRecordOffset = (myHeader.getRecordLength() * inIndex) + |
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myHeader.getHeaderLength(); |
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// retrieve the record length |
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int tempNumFields = myHeader.getNumFields(); |
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// storage for the actual values |
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Object[] tempRow = new Object[tempNumFields]; |
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buffer.position((int) nRecordOffset); |
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// read the deleted flag |
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char tempDeleted = (char) buffer.get(); |
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// read the record length |
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int tempRecordLength = 1; // for the deleted character just read. |
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// read the Fields |
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for (int j = 0; j < tempNumFields; j++) {
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// find the length of the field. |
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int tempFieldLength = myHeader.getFieldLength(j); |
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tempRecordLength = tempRecordLength + tempFieldLength; |
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// find the field type |
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char tempFieldType = myHeader.getFieldType(j); |
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//System.out.print("Reading Name="+myHeader.getFieldName(j)+" Type="+tempFieldType +" Length="+tempFieldLength);
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// read the data. |
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Object tempObject = null; |
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switch (tempFieldType) {
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case 'L': // logical data type, one character (T,t,F,f,Y,y,N,n) |
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char tempChar = (char) buffer.get(); |
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if ((tempChar == 'T') || (tempChar == 't') || |
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(tempChar == 'Y') || (tempChar == 'y')) {
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tempObject = new Boolean(true); |
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} else {
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tempObject = new Boolean(false); |
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} |
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break; |
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case 'C': // character record. |
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byte[] sbuffer = new byte[tempFieldLength]; |
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buffer.get(sbuffer); |
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tempObject = new String(sbuffer, "ISO-8859-1").trim(); |
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break; |
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case 'D': // date data type. |
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byte[] dbuffer = new byte[8]; |
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buffer.get(dbuffer); |
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String tempString = new String(dbuffer, 0, 4); |
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try {
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int tempYear = Integer.parseInt(tempString); |
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tempString = new String(dbuffer, 4, 2); |
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int tempMonth = Integer.parseInt(tempString) - 1; |
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tempString = new String(dbuffer, 6, 2); |
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int tempDay = Integer.parseInt(tempString); |
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Calendar c = Calendar.getInstance(); |
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c.set(Calendar.YEAR, tempYear); |
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c.set(Calendar.MONTH, tempMonth); |
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c.set(Calendar.DAY_OF_MONTH, tempDay); |
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tempObject = c.getTime(); |
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} catch (NumberFormatException e) {
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} |
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break; |
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case 'M': // memo field. |
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byte[] mbuffer = new byte[10]; |
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buffer.get(mbuffer); |
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break; |
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case 'N': // number |
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case 'F': // floating point number |
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byte[] fbuffer = new byte[tempFieldLength]; |
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buffer.get(fbuffer); |
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try {
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tempString = new String(fbuffer); |
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tempObject = Double.valueOf(tempString.trim()); |
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} catch (NumberFormatException e) {
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} |
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break; |
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default: |
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byte[] defbuffer = new byte[tempFieldLength]; |
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buffer.get(defbuffer); |
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System.out.println("Do not know how to parse Field type " +
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tempFieldType); |
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} |
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tempRow[j] = tempObject; |
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// System.out.println(" Data="+tempObject);
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} |
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// ensure that the full record has been read. |
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if (tempRecordLength < myHeader.getRecordLength()) {
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byte[] tempbuff = new byte[myHeader.getRecordLength() - |
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tempRecordLength]; |
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buffer.get(tempbuff); |
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/* if (tempTelling){
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System.out.println("DBF File has "+(myHeader.getRecordLength()-tempRecordLength)+" extra bytes per record");
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tempTelling = false; |
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} */ |
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/* } |
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return tempRow; |
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} |
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*/ |
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ByteBuffer aux = ByteBuffer.wrap(data); |
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aux.put(str.getBytes(chars.name())); |
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// raf.seek(recordOffset + fieldOffset); |
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// raf.writeBytes(str); |
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aux.flip(); |
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int numBytesWritten = channel.write(aux, recordOffset + fieldOffset); |
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channel.force(true); |
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|
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| 212 | 262 |
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/** |
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* Retrieve the name of the given column. |
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* |
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* @param inIndex DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public String getFieldName(int inIndex) {
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return myHeader.getFieldName(inIndex).trim(); |
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} |
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} |
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| 223 | 264 |
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/** |
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* Retrieve the type of the given column. |
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* |
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* @param inIndex DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
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*/ |
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public char getFieldType(int inIndex) {
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return myHeader.getFieldType(inIndex); |
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} |
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| 234 | 265 |
|
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/** |
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* Retrieve the length of the given column. |
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* |
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* @param inIndex DOCUMENT ME! |
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* |
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* @return DOCUMENT ME! |
|
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*/ |
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public int getFieldLength(int inIndex) {
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return myHeader.getFieldLength(inIndex); |
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} |
|
| 266 |
/** |
|
| 267 |
* Retrieve the name of the given column. |
|
| 268 |
* |
|
| 269 |
* @param inIndex |
|
| 270 |
* DOCUMENT ME! |
|
| 271 |
* |
|
| 272 |
* @return DOCUMENT ME! |
|
| 273 |
*/ |
|
| 274 |
public String getFieldName(int inIndex) {
|
|
| 275 |
return myHeader.getFieldName(inIndex).trim(); |
|
| 276 |
} |
|
| 245 | 277 |
|
| 246 |
/* |
|
| 247 |
* Retrieve the value of the given column as string. |
|
| 248 |
* |
|
| 249 |
* @param idField DOCUMENT ME! |
|
| 250 |
* @param idRecord DOCUMENT ME! |
|
| 251 |
* |
|
| 252 |
* @return DOCUMENT ME! |
|
| 253 |
* |
|
| 254 |
public Object getFieldValue(int idField, long idRecord) throws IOException {
|
|
| 255 |
Object[] tmpReg = getRecord(idRecord); |
|
| 256 |
return tmpReg[idField]; |
|
| 257 |
} |
|
| 258 |
*/ |
|
| 259 |
/* |
|
| 260 |
* DOCUMENT ME! |
|
| 261 |
* |
|
| 262 |
* @param idField DOCUMENT ME! |
|
| 263 |
* @param idRecord DOCUMENT ME! |
|
| 264 |
* |
|
| 265 |
* @return DOCUMENT ME! |
|
| 266 |
* |
|
| 267 |
public double getFieldValueAsDouble(int idField, int idRecord) throws IOException {
|
|
| 268 |
Object[] tmpReg = getRecord(idRecord); |
|
| 269 |
return (double) Double.parseDouble(tmpReg[idField].toString()); |
|
| 270 |
} |
|
| 271 |
*/ |
|
| 278 |
/** |
|
| 279 |
* Retrieve the type of the given column. |
|
| 280 |
* |
|
| 281 |
* @param inIndex |
|
| 282 |
* DOCUMENT ME! |
|
| 283 |
* |
|
| 284 |
* @return DOCUMENT ME! |
|
| 285 |
*/ |
|
| 286 |
public char getFieldType(int inIndex) {
|
|
| 287 |
return myHeader.getFieldType(inIndex); |
|
| 288 |
} |
|
| 272 | 289 |
|
| 273 |
/** |
|
| 274 |
* Retrieve the location of the decimal point. |
|
| 275 |
* |
|
| 276 |
* @param inIndex DOCUMENT ME! |
|
| 277 |
* |
|
| 278 |
* @return DOCUMENT ME! |
|
| 279 |
*/ |
|
| 280 |
public int getFieldDecimalLength(int inIndex) {
|
|
| 281 |
return myHeader.getFieldDecimalCount(inIndex); |
|
| 282 |
} |
|
| 290 |
/** |
|
| 291 |
* Retrieve the length of the given column. |
|
| 292 |
* |
|
| 293 |
* @param inIndex |
|
| 294 |
* DOCUMENT ME! |
|
| 295 |
* |
|
| 296 |
* @return DOCUMENT ME! |
|
| 297 |
*/ |
|
| 298 |
public int getFieldLength(int inIndex) {
|
|
| 299 |
return myHeader.getFieldLength(inIndex); |
|
| 300 |
} |
|
| 283 | 301 |
|
| 284 |
/** |
|
| 285 |
* read the DBF file into memory. |
|
| 286 |
* |
|
| 287 |
* @param file DOCUMENT ME! |
|
| 288 |
* |
|
| 289 |
* @throws IOException DOCUMENT ME! |
|
| 290 |
*/ |
|
| 291 |
public void open(File file) throws IOException {
|
|
| 292 |
/* |
|
| 293 |
01h DOS USA code page 437 |
|
| 294 |
02h DOS Multilingual code page 850 |
|
| 295 |
03h Windows ANSI code page 1252 |
|
| 296 |
04h Standard Macintosh |
|
| 297 |
64h EE MS-DOS code page 852 |
|
| 298 |
65h Nordic MS-DOS code page 865 |
|
| 299 |
66h Russian MS-DOS code page 866 |
|
| 300 |
67h Icelandic MS-DOS |
|
| 301 |
68h Kamenicky (Czech) MS-DOS |
|
| 302 |
69h Mazovia (Polish) MS-DOS |
|
| 303 |
6Ah Greek MS-DOS (437G) |
|
| 304 |
6Bh Turkish MS-DOS |
|
| 305 |
96h Russian Macintosh |
|
| 306 |
97h Eastern European Macintosh |
|
| 307 |
98h Greek Macintosh |
|
| 308 |
C8h Windows EE code page 1250 |
|
| 309 |
C9h Russian Windows |
|
| 310 |
CAh Turkish Windows |
|
| 311 |
CBh Greek Windows |
|
| 312 |
*/ |
|
| 313 |
if (file.canWrite()){
|
|
| 314 |
try{
|
|
| 315 |
raf = new RandomAccessFile(file, "rw"); |
|
| 316 |
mode = FileChannel.MapMode.READ_WRITE; |
|
| 317 |
}catch (FileNotFoundException e) {
|
|
| 318 |
raf = new RandomAccessFile(file, "r"); |
|
| 319 |
mode = FileChannel.MapMode.READ_ONLY; |
|
| 302 |
/* |
|
| 303 |
* Retrieve the value of the given column as string. |
|
| 304 |
* |
|
| 305 |
* @param idField DOCUMENT ME! @param idRecord DOCUMENT ME! |
|
| 306 |
* |
|
| 307 |
* @return DOCUMENT ME! |
|
| 308 |
* |
|
| 309 |
* public Object getFieldValue(int idField, long idRecord) throws |
|
| 310 |
* IOException { Object[] tmpReg = getRecord(idRecord); return
|
|
| 311 |
* tmpReg[idField]; } |
|
| 312 |
*/ |
|
| 313 |
/* |
|
| 314 |
* DOCUMENT ME! |
|
| 315 |
* |
|
| 316 |
* @param idField DOCUMENT ME! @param idRecord DOCUMENT ME! |
|
| 317 |
* |
|
| 318 |
* @return DOCUMENT ME! |
|
| 319 |
* |
|
| 320 |
* public double getFieldValueAsDouble(int idField, int idRecord) throws |
|
| 321 |
* IOException { Object[] tmpReg = getRecord(idRecord); return (double)
|
|
| 322 |
* Double.parseDouble(tmpReg[idField].toString()); } |
|
| 323 |
*/ |
|
| 324 |
|
|
| 325 |
/** |
|
| 326 |
* Retrieve the location of the decimal point. |
|
| 327 |
* |
|
| 328 |
* @param inIndex |
|
| 329 |
* DOCUMENT ME! |
|
| 330 |
* |
|
| 331 |
* @return DOCUMENT ME! |
|
| 332 |
*/ |
|
| 333 |
public int getFieldDecimalLength(int inIndex) {
|
|
| 334 |
return myHeader.getFieldDecimalCount(inIndex); |
|
| 335 |
} |
|
| 336 |
|
|
| 337 |
/** |
|
| 338 |
* read the DBF file into memory. |
|
| 339 |
* |
|
| 340 |
* @param file |
|
| 341 |
* DOCUMENT ME! |
|
| 342 |
* |
|
| 343 |
* @throws IOException |
|
| 344 |
* DOCUMENT ME! |
|
| 345 |
*/ |
|
| 346 |
public void open(File file) throws IOException {
|
|
| 347 |
/* |
|
| 348 |
* 01h DOS USA code page 437 02h DOS Multilingual code page 850 03h |
|
| 349 |
* Windows ANSI code page 1252 04h Standard Macintosh 64h EE MS-DOS code |
|
| 350 |
* page 852 65h Nordic MS-DOS code page 865 66h Russian MS-DOS code page |
|
| 351 |
* 866 67h Icelandic MS-DOS 68h Kamenicky (Czech) MS-DOS 69h Mazovia |
|
| 352 |
* (Polish) MS-DOS 6Ah Greek MS-DOS (437G) 6Bh Turkish MS-DOS 96h |
|
| 353 |
* Russian Macintosh 97h Eastern European Macintosh 98h Greek Macintosh |
|
| 354 |
* C8h Windows EE code page 1250 C9h Russian Windows CAh Turkish Windows |
|
| 355 |
* CBh Greek Windows |
|
| 356 |
*/ |
|
| 357 |
if (file.canWrite()) {
|
|
| 358 |
try {
|
|
| 359 |
raf = new RandomAccessFile(file, "rw"); |
|
| 360 |
mode = FileChannel.MapMode.READ_WRITE; |
|
| 361 |
} catch (FileNotFoundException e) {
|
|
| 362 |
raf = new RandomAccessFile(file, "r"); |
|
| 363 |
mode = FileChannel.MapMode.READ_ONLY; |
|
| 320 | 364 |
} |
| 321 |
} else {
|
|
| 322 |
raf = new RandomAccessFile(file, "r");
|
|
| 323 |
mode = FileChannel.MapMode.READ_ONLY;
|
|
| 324 |
}
|
|
| 325 |
channel = raf.getChannel();
|
|
| 365 |
} else {
|
|
| 366 |
raf = new RandomAccessFile(file, "r");
|
|
| 367 |
mode = FileChannel.MapMode.READ_ONLY;
|
|
| 368 |
}
|
|
| 369 |
channel = raf.getChannel();
|
|
| 326 | 370 |
|
| 327 |
// buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size()); |
|
| 328 |
buffer = new BigByteBuffer2(channel, mode); |
|
| 371 |
// buffer = channel.map(FileChannel.MapMode.READ_ONLY, 0, |
|
| 372 |
// channel.size()); |
|
| 373 |
buffer = new BigByteBuffer2(channel, mode); |
|
| 329 | 374 |
|
| 330 |
// create the header to contain the header information. |
|
| 331 |
myHeader = new DbaseFileHeader(); |
|
| 332 |
myHeader.readHeader(buffer); |
|
| 333 |
switch (myHeader.getLanguageID()) |
|
| 334 |
{
|
|
| 335 |
case 0x01: |
|
| 336 |
chars = Charset.forName("US-ASCII");
|
|
| 337 |
break; |
|
| 338 |
case 0x02: |
|
| 339 |
chars = Charset.forName("ISO-8859-1");
|
|
| 340 |
break; |
|
| 341 |
case 0x03: |
|
| 342 |
chars = Charset.forName("windows-1252");
|
|
| 343 |
break; |
|
| 344 |
case 0x04: |
|
| 345 |
chars = Charset.forName("mac");
|
|
| 346 |
break; |
|
| 347 |
case 0x64: |
|
| 348 |
chars = Charset.forName("ISO-8859-1");
|
|
| 349 |
break; |
|
| 350 |
case 0x65: |
|
| 351 |
chars = Charset.forName("ISO-8859-1");
|
|
| 352 |
break; |
|
| 353 |
case 0x66: |
|
| 354 |
chars = Charset.forName("ISO-8859-1");
|
|
| 355 |
break; |
|
| 356 |
case 0x67: |
|
| 357 |
chars = Charset.forName("ISO-8859-1");
|
|
| 358 |
break; |
|
| 359 |
case 0x68: |
|
| 360 |
chars = Charset.forName("greek");
|
|
| 361 |
break; |
|
| 362 |
case 0x69: |
|
| 363 |
chars = Charset.forName("ISO-8859-1");
|
|
| 364 |
break; |
|
| 365 |
case 0x6A: |
|
| 366 |
chars = Charset.forName("greek");
|
|
| 367 |
break; |
|
| 368 |
case 0x6B: |
|
| 369 |
chars = Charset.forName("ISO-8859-1");
|
|
| 370 |
break; |
|
| 371 |
|
|
| 372 |
default: |
|
| 373 |
chars = Charset.forName("ISO-8859-1");
|
|
| 374 |
} |
|
| 375 |
bytesCachedRecord = new byte[myHeader.getRecordLength()]; |
|
| 376 |
} |
|
| 375 |
// create the header to contain the header information. |
|
| 376 |
myHeader = new DbaseFileHeader(); |
|
| 377 |
myHeader.readHeader(buffer); |
|
| 378 |
switch (myHeader.getLanguageID()) {
|
|
| 379 |
case 0x01: |
|
| 380 |
chars = Charset.forName("US-ASCII");
|
|
| 381 |
break; |
|
| 382 |
case 0x02: |
|
| 383 |
chars = Charset.forName("ISO-8859-1");
|
|
| 384 |
break; |
|
| 385 |
case 0x03: |
|
| 386 |
chars = Charset.forName("windows-1252");
|
|
| 387 |
break; |
|
| 388 |
case 0x04: |
|
| 389 |
chars = Charset.forName("mac");
|
|
| 390 |
break; |
|
| 391 |
case 0x64: |
|
| 392 |
chars = Charset.forName("ISO-8859-1");
|
|
| 393 |
break; |
|
| 394 |
case 0x65: |
|
| 395 |
chars = Charset.forName("ISO-8859-1");
|
|
| 396 |
break; |
|
| 397 |
case 0x66: |
|
| 398 |
chars = Charset.forName("ISO-8859-1");
|
|
| 399 |
break; |
|
| 400 |
case 0x67: |
|
| 401 |
chars = Charset.forName("ISO-8859-1");
|
|
| 402 |
break; |
|
| 403 |
case 0x68: |
|
| 404 |
chars = Charset.forName("greek");
|
|
| 405 |
break; |
|
| 406 |
case 0x69: |
|
| 407 |
chars = Charset.forName("ISO-8859-1");
|
|
| 408 |
break; |
|
| 409 |
case 0x6A: |
|
| 410 |
chars = Charset.forName("greek");
|
|
| 411 |
break; |
|
| 412 |
case 0x6B: |
|
| 413 |
chars = Charset.forName("ISO-8859-1");
|
|
| 414 |
break; |
|
| 377 | 415 |
|
| 378 |
/** |
|
| 379 |
* Removes all data from the dataset |
|
| 380 |
* |
|
| 381 |
* @throws IOException DOCUMENT ME! |
|
| 382 |
*/ |
|
| 383 |
public void close() throws IOException {
|
|
| 384 |
raf.close(); |
|
| 385 |
channel.close(); |
|
| 386 |
buffer = null; |
|
| 387 |
} |
|
| 416 |
default: |
|
| 417 |
chars = Charset.forName("ISO-8859-1");
|
|
| 418 |
} |
|
| 419 |
bytesCachedRecord = new byte[myHeader.getRecordLength()]; |
|
| 420 |
} |
|
| 388 | 421 |
|
| 389 |
public FileChannel getWriteChannel() {
|
|
| 390 |
return channel; |
|
| 391 |
} |
|
| 422 |
/** |
|
| 423 |
* Removes all data from the dataset |
|
| 424 |
* |
|
| 425 |
* @throws IOException |
|
| 426 |
* DOCUMENT ME! |
|
| 427 |
*/ |
|
| 428 |
public void close() throws IOException {
|
|
| 429 |
raf.close(); |
|
| 430 |
channel.close(); |
|
| 431 |
buffer = null; |
|
| 432 |
} |
|
| 433 |
|
|
| 434 |
public FileChannel getWriteChannel() {
|
|
| 435 |
return channel; |
|
| 436 |
} |
|
| 437 |
|
|
| 438 |
private String fieldString(Object obj, final int col) {
|
|
| 439 |
String o; |
|
| 440 |
final int fieldLen = myHeader.getFieldLength(col); |
|
| 441 |
switch (myHeader.getFieldType(col)) {
|
|
| 442 |
case 'C': |
|
| 443 |
case 'c': |
|
| 444 |
o = formatter.getFieldString(fieldLen, (obj == null) ? NULL_STRING |
|
| 445 |
: ((String) obj)); |
|
| 446 |
break; |
|
| 447 |
case 'L': |
|
| 448 |
case 'l': |
|
| 449 |
o = (obj == null) ? "F" |
|
| 450 |
: ((Boolean) obj).booleanValue() == true ? "T" : "F"; |
|
| 451 |
break; |
|
| 452 |
case 'M': |
|
| 453 |
case 'G': |
|
| 454 |
o = formatter.getFieldString(fieldLen, (obj == null) ? NULL_STRING |
|
| 455 |
: ((String) obj)); |
|
| 456 |
break; |
|
| 457 |
case 'N': |
|
| 458 |
case 'n': |
|
| 459 |
case 'F': |
|
| 460 |
case 'f': |
|
| 461 |
Number number = null; |
|
| 462 |
if (obj == null) {
|
|
| 463 |
number = NULL_NUMBER; |
|
| 464 |
} else {
|
|
| 465 |
Number gVal = (Number) obj; |
|
| 466 |
number = new Double(gVal.doubleValue()); |
|
| 467 |
} |
|
| 468 |
o = formatter.getFieldString(fieldLen, myHeader |
|
| 469 |
.getFieldDecimalCount(col), number); |
|
| 470 |
break; |
|
| 471 |
case 'D': |
|
| 472 |
case 'd': |
|
| 473 |
if (obj == null) |
|
| 474 |
o = NULL_DATE; |
|
| 475 |
else |
|
| 476 |
o = formatter.getFieldString(((Date) obj)); |
|
| 477 |
break; |
|
| 478 |
default: |
|
| 479 |
throw new RuntimeException("Unknown type "
|
|
| 480 |
+ myHeader.getFieldType(col)); |
|
| 481 |
} |
|
| 482 |
|
|
| 483 |
return o; |
|
| 484 |
} |
|
| 485 |
|
|
| 392 | 486 |
} |
Also available in: Unified diff