mirror of
https://github.com/yacy/yacy_search_server.git
synced 2024-09-21 00:00:13 +02:00
a5054c038d
- redesign of ordering structures in kelondro (old did not work with strict generics) - 50% IO reduction during read access on kelondroFlex (ommiting of read on index table) git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@4320 6c8d7289-2bf4-0310-a012-ef5d649a1542
640 lines
27 KiB
Java
640 lines
27 KiB
Java
// kelondroRow.java
|
|
// (C) 2006 by Michael Peter Christen; mc@anomic.de, Frankfurt a. M., Germany
|
|
// first published 24.05.2006 on http://www.anomic.de
|
|
//
|
|
// This is a part of the kelondro database,
|
|
// which is a part of YaCy, a peer-to-peer based web search engine
|
|
//
|
|
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
|
|
// $LastChangedRevision: 1986 $
|
|
// $LastChangedBy: orbiter $
|
|
//
|
|
// LICENSE
|
|
//
|
|
// This program is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 2 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program 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 General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
|
|
package de.anomic.kelondro;
|
|
|
|
import java.io.UnsupportedEncodingException;
|
|
import java.util.ArrayList;
|
|
import java.util.Comparator;
|
|
import java.util.HashMap;
|
|
import java.util.Map;
|
|
import java.util.StringTokenizer;
|
|
|
|
import de.anomic.server.serverByteBuffer;
|
|
import de.anomic.server.logging.serverLog;
|
|
|
|
public final class kelondroRow {
|
|
|
|
protected kelondroColumn[] row;
|
|
protected int[] colstart;
|
|
protected kelondroByteOrder objectOrder;
|
|
public int objectsize;
|
|
public int primaryKeyIndex, primaryKeyLength;
|
|
protected Map<String, Object[]> nickref = null; // a mapping from nicknames to Object[2]{kelondroColumn, Integer(colstart)}
|
|
|
|
public kelondroRow(kelondroColumn[] row, kelondroByteOrder objectOrder, int primaryKey) {
|
|
assert objectOrder != null;
|
|
this.objectOrder = objectOrder;
|
|
this.row = row;
|
|
assert (objectOrder != null);
|
|
this.colstart = new int[row.length];
|
|
this.objectsize = 0;
|
|
for (int i = 0; i < row.length; i++) {
|
|
this.colstart[i] = this.objectsize;
|
|
this.objectsize += this.row[i].cellwidth;
|
|
}
|
|
this.primaryKeyIndex = primaryKey;
|
|
this.primaryKeyLength = (primaryKey < 0) ? this.objectsize : row[primaryKeyIndex].cellwidth;
|
|
}
|
|
|
|
public kelondroRow(String structure, kelondroByteOrder objectOrder, int primaryKey) {
|
|
assert (objectOrder != null);
|
|
this.objectOrder = objectOrder;
|
|
// define row with row syntax
|
|
// example:
|
|
//# Structure=<pivot-12>,'=',<UDate-3>,<VDate-3>,<LCount-2>,<GCount-2>,<ICount-2>,<DCount-2>,<TLength-3>,<WACount-3>,<WUCount-3>,<Flags-1>
|
|
|
|
// parse pivot definition:
|
|
structure.replace('=', ',');
|
|
|
|
// parse property part definition:
|
|
int p = structure.indexOf('|');
|
|
if (p < 0) p = structure.length();
|
|
ArrayList<kelondroColumn> l = new ArrayList<kelondroColumn>();
|
|
String attr = structure.substring(0, p);
|
|
StringTokenizer st = new StringTokenizer(attr, ",");
|
|
while (st.hasMoreTokens()) {
|
|
l.add(new kelondroColumn(st.nextToken()));
|
|
}
|
|
|
|
// define columns
|
|
this.row = new kelondroColumn[l.size()];
|
|
this.colstart = new int[row.length];
|
|
this.objectsize = 0;
|
|
for (int i = 0; i < l.size(); i++) {
|
|
this.colstart[i] = this.objectsize;
|
|
this.row[i] = (kelondroColumn) l.get(i);
|
|
this.objectsize += this.row[i].cellwidth;
|
|
}
|
|
this.primaryKeyIndex = primaryKey;
|
|
this.primaryKeyLength = (primaryKey < 0) ? this.objectsize : row[primaryKeyIndex].cellwidth;
|
|
}
|
|
|
|
public final void setOrdering(kelondroByteOrder objectOrder, int primaryKey) {
|
|
assert (objectOrder != null);
|
|
this.objectOrder = objectOrder;
|
|
this.primaryKeyIndex = primaryKey;
|
|
this.primaryKeyLength = (primaryKey < 0) ? this.objectsize : row[primaryKeyIndex].cellwidth;
|
|
}
|
|
|
|
public final kelondroOrder<byte[]> getOrdering() {
|
|
return this.objectOrder;
|
|
}
|
|
|
|
protected final void genNickRef() {
|
|
if (nickref != null) return;
|
|
nickref = new HashMap<String, Object[]>(row.length);
|
|
for (int i = 0; i < row.length; i++) nickref.put(row[i].nickname, new Object[]{row[i], new Integer(colstart[i])});
|
|
}
|
|
|
|
public final int columns() {
|
|
return this.row.length;
|
|
}
|
|
/*
|
|
public final int objectsize() {
|
|
return this.objectsize;
|
|
}
|
|
*/
|
|
public final kelondroColumn column(int col) {
|
|
return row[col];
|
|
}
|
|
|
|
public final int width(int column) {
|
|
return this.row[column].cellwidth;
|
|
}
|
|
|
|
public final int[] widths() {
|
|
int[] w = new int[this.row.length];
|
|
for (int i = 0; i < this.row.length; i++) w[i] = row[i].cellwidth;
|
|
return w;
|
|
}
|
|
|
|
public final String toString() {
|
|
StringBuffer s = new StringBuffer();
|
|
s.append(row[0].toString());
|
|
for (int i = 1; i < row.length; i++) {
|
|
s.append(", ");
|
|
s.append(row[i].toString());
|
|
}
|
|
return new String(s);
|
|
}
|
|
|
|
public final Entry newEntry() {
|
|
return new Entry();
|
|
}
|
|
|
|
public final Entry newEntry(byte[] rowinstance) {
|
|
if (rowinstance == null) return null;
|
|
//assert (rowinstance[0] != 0);
|
|
assert (this.objectOrder.wellformed(rowinstance, 0, row[0].cellwidth)) : "rowinstance[0] = " + new String(rowinstance, 0, row[0].cellwidth) + " / " + serverLog.arrayList(rowinstance, 0, row[0].cellwidth);
|
|
if (!(this.objectOrder.wellformed(rowinstance, 0, row[0].cellwidth))) return null;
|
|
return new Entry(rowinstance, false);
|
|
}
|
|
|
|
public final Entry newEntry(Entry oldrow, int fromColumn) {
|
|
if (oldrow == null) return null;
|
|
assert (oldrow.getColBytes(0)[0] != 0);
|
|
assert (this.objectOrder.wellformed(oldrow.getColBytes(0), 0, row[0].cellwidth));
|
|
return new Entry(oldrow, fromColumn, false);
|
|
}
|
|
|
|
public final Entry newEntry(byte[] rowinstance, int start, boolean clone) {
|
|
if (rowinstance == null) return null;
|
|
//assert (rowinstance[0] != 0);
|
|
assert (this.objectOrder.wellformed(rowinstance, start, row[0].cellwidth));
|
|
// this method offers the option to clone the content
|
|
// this is necessary if it is known that the underlying byte array may change and therefore
|
|
// the reference to the byte array does not contain the original content
|
|
return new Entry(rowinstance, start, clone);
|
|
}
|
|
|
|
public final Entry newEntry(byte[][] cells) {
|
|
if (cells == null) return null;
|
|
assert (cells[0][0] != 0);
|
|
assert (this.objectOrder.wellformed(cells[0], 0, row[0].cellwidth));
|
|
return new Entry(cells);
|
|
}
|
|
|
|
public final Entry newEntry(String external, boolean decimalCardinal) {
|
|
if (external == null) return null;
|
|
return new Entry(external, decimalCardinal);
|
|
}
|
|
|
|
public final EntryIndex newEntryIndex(byte[] rowinstance, int index) {
|
|
if (rowinstance == null) return null;
|
|
assert (rowinstance[0] != 0);
|
|
assert (this.objectOrder.wellformed(rowinstance, 0, row[0].cellwidth));
|
|
return new EntryIndex(rowinstance, index);
|
|
}
|
|
|
|
public static class EntryComparator extends kelondroAbstractOrder<Entry> implements kelondroOrder<Entry>, Comparator<Entry> {
|
|
|
|
kelondroByteOrder base;
|
|
public EntryComparator(kelondroByteOrder baseOrder) {
|
|
this.base = baseOrder;
|
|
}
|
|
|
|
public int compare(Entry a, Entry b) {
|
|
return a.compareTo(b);
|
|
}
|
|
|
|
public kelondroOrder<Entry> clone() {
|
|
return new EntryComparator(base);
|
|
}
|
|
|
|
public long cardinal(Entry key) {
|
|
return base.cardinal(key.getPrimaryKeyBytes());
|
|
}
|
|
|
|
public String signature() {
|
|
return base.signature();
|
|
}
|
|
|
|
public boolean wellformed(Entry a) {
|
|
return base.wellformed(a.getPrimaryKeyBytes());
|
|
}
|
|
|
|
}
|
|
|
|
public class Entry implements Comparable<Entry> {
|
|
|
|
private byte[] rowinstance;
|
|
private int offset; // the offset where the row starts within rowinstance
|
|
|
|
public Entry() {
|
|
rowinstance = new byte[objectsize];
|
|
for (int i = 0; i < objectsize; i++) this.rowinstance[i] = 0;
|
|
offset = 0;
|
|
}
|
|
|
|
public Entry(byte[] newrow, boolean forceclone) {
|
|
this(newrow, 0, forceclone);
|
|
}
|
|
|
|
public Entry(Entry oldrow, int fromColumn, boolean forceclone) {
|
|
this(oldrow.rowinstance, oldrow.offset + oldrow.colstart(fromColumn), forceclone);
|
|
}
|
|
|
|
public Entry(byte[] newrow, int start, boolean forceclone) {
|
|
if ((!forceclone) && (newrow.length - start >= objectsize)) {
|
|
this.rowinstance = newrow;
|
|
this.offset = start;
|
|
} else {
|
|
this.rowinstance = new byte[objectsize];
|
|
System.arraycopy(newrow, start, this.rowinstance, 0, objectsize);
|
|
this.offset = 0;
|
|
}
|
|
//for (int i = ll; i < objectsize; i++) this.rowinstance[i] = 0;
|
|
}
|
|
|
|
public Entry(byte[][] cols) {
|
|
assert row.length == cols.length : "cols.length = " + cols.length + ", row.length = " + row.length;
|
|
this.rowinstance = new byte[objectsize];
|
|
this.offset = 0;
|
|
int ll;
|
|
int cs, cw;
|
|
for (int i = 0; i < row.length; i++) {
|
|
cs = colstart[i];
|
|
cw = row[i].cellwidth;
|
|
if ((i >= cols.length) || (cols[i] == null)) {
|
|
for (int j = 0; j < cw; j++) this.rowinstance[cs + j] = 0;
|
|
} else {
|
|
//assert cols[i].length <= cw : "i = " + i + ", cols[i].length = " + cols[i].length + ", cw = " + cw;
|
|
ll = Math.min(cols[i].length, cw);
|
|
System.arraycopy(cols[i], 0, rowinstance, cs, ll);
|
|
for (int j = ll; j < cw; j++) this.rowinstance[cs + j] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
public Entry(String external, boolean decimalCardinal) {
|
|
// parse external form
|
|
if (external.charAt(0) == '{') external = external.substring(1, external.length() - 1);
|
|
String[] elts = external.split(",");
|
|
if (nickref == null) genNickRef();
|
|
String nick;
|
|
int p;
|
|
this.rowinstance = new byte[objectsize];
|
|
this.offset = 0;
|
|
for (int i = 0; i < elts.length; i++) {
|
|
p = elts[i].indexOf('=');
|
|
if (p > 0) {
|
|
nick = elts[i].substring(0, p).trim();
|
|
if (p + 1 == elts[i].length())
|
|
setCol(nick, null);
|
|
else {
|
|
if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_cardinal)) {
|
|
try {
|
|
setCol(nick, Long.parseLong(elts[i].substring(p + 1).trim()));
|
|
} catch (NumberFormatException e) {
|
|
serverLog.logSevere("kelondroRow", "NumberFormatException for celltype_cardinal; row = " + i + ", celltype = " + row[i].celltype + ", encoder = " + row[i].encoder + ", value = '" + elts[i].substring(p + 1).trim() + "'");
|
|
setCol(nick, 0);
|
|
}
|
|
} else if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_binary)) {
|
|
assert row[i].cellwidth == 1;
|
|
try {
|
|
setCol(nick, new byte[]{(byte) Integer.parseInt(elts[i].substring(p + 1).trim())});
|
|
} catch (NumberFormatException e) {
|
|
serverLog.logSevere("kelondroRow", "NumberFormatException for celltype_binary; row = " + i + ", celltype = " + row[i].celltype + ", encoder = " + row[i].encoder + ", value = '" + elts[i].substring(p + 1).trim() + "'");
|
|
setCol(nick, new byte[]{0});
|
|
}
|
|
} else if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_bitfield)) {
|
|
setCol(nick, (new kelondroBitfield(row[i].cellwidth, elts[i].substring(p + 1).trim())).bytes());
|
|
} else {
|
|
setCol(nick, elts[i].substring(p + 1).trim().getBytes());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
protected final int colstart(int column) {
|
|
return colstart[column];
|
|
}
|
|
|
|
protected final int cellwidth(int column) {
|
|
return row[column].cellwidth;
|
|
}
|
|
|
|
public final int compareTo(Entry o) {
|
|
if (objectOrder == null) throw new kelondroException("objects cannot be compared, no order given");
|
|
return objectOrder.compare(this.getPrimaryKeyBytes(), ((Entry) o).getPrimaryKeyBytes());
|
|
}
|
|
|
|
public final byte[] bytes() {
|
|
if ((offset == 0) && (rowinstance.length == objectsize)) {
|
|
return rowinstance;
|
|
} else {
|
|
byte[] tmp = new byte[objectsize];
|
|
System.arraycopy(rowinstance, offset, tmp, 0, objectsize);
|
|
return tmp;
|
|
}
|
|
}
|
|
|
|
public final void writeToArray(byte[] target, int targetOffset) {
|
|
// this method shall replace the byte()s where possible, bacause it may reduce the number of new byte[] allocations
|
|
assert (targetOffset + objectsize <= target.length) : "targetOffset = " + targetOffset + ", target.length = " + target.length + ", objectsize = " + objectsize;
|
|
System.arraycopy(rowinstance, offset, target, targetOffset, objectsize);
|
|
}
|
|
|
|
public final int columns() {
|
|
return row.length;
|
|
}
|
|
|
|
public final int objectsize() {
|
|
return objectsize;
|
|
}
|
|
|
|
public final boolean empty(int column) {
|
|
return rowinstance[offset + colstart[column]] == 0;
|
|
}
|
|
|
|
public final void setCol(String nickname, char c) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return;
|
|
rowinstance[offset + ((Integer) ref[1]).intValue()] = (byte) c;
|
|
}
|
|
|
|
public final void setCol(String nickname, byte[] cell) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return;
|
|
kelondroColumn col = (kelondroColumn) ref[0];
|
|
setCol(col.encoder, ((Integer) ref[1]).intValue(), col.cellwidth, cell);
|
|
}
|
|
|
|
public final void setCol(int column, byte[] cell) {
|
|
setCol(row[column].encoder, colstart[column], row[column].cellwidth, cell);
|
|
}
|
|
|
|
public final void setCol(int column, char[] cell) {
|
|
int clstrt = colstart[column];
|
|
for (int i = 0; i < cell.length; i++) rowinstance[offset + clstrt + i] = (byte) cell[i];
|
|
for (int i = cell.length; i < row[column].cellwidth; i++) rowinstance[offset + clstrt + i] = 0;
|
|
}
|
|
|
|
private final void setCol(int encoding, int clstrt, int length, byte[] cell) {
|
|
if (cell == null) {
|
|
while (length-- > 0) rowinstance[offset + clstrt + length] = 0;
|
|
} else {
|
|
if (cell.length < length) {
|
|
System.arraycopy(cell, 0, rowinstance, offset + clstrt, cell.length);
|
|
while (length-- > cell.length) rowinstance[offset + clstrt + length] = 0;
|
|
} else {
|
|
//assert cell.length == length;
|
|
System.arraycopy(cell, 0, rowinstance, offset + clstrt, length);
|
|
}
|
|
}
|
|
}
|
|
|
|
public final void setCol(int column, byte c) {
|
|
rowinstance[offset + colstart[column]] = c;
|
|
}
|
|
|
|
public final void setCol(int column, String cell, String encoding) {
|
|
if (encoding == null)
|
|
setCol(column, cell.getBytes());
|
|
else
|
|
try {
|
|
setCol(column, (cell == null) ? null : cell.getBytes(encoding));
|
|
} catch (UnsupportedEncodingException e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
public final void setCol(String nick, String cell, String encoding) {
|
|
if (encoding == null)
|
|
setCol(nick, cell.getBytes());
|
|
else
|
|
try {
|
|
setCol(nick, cell.getBytes(encoding));
|
|
} catch (UnsupportedEncodingException e) {
|
|
e.printStackTrace();
|
|
}
|
|
}
|
|
|
|
public final void setCol(String nickname, long cell) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return;
|
|
kelondroColumn col = (kelondroColumn) ref[0];
|
|
setCol(col.encoder, offset + ((Integer) ref[1]).intValue(), col.cellwidth, cell);
|
|
}
|
|
|
|
public final void setCol(int column, long cell) {
|
|
// uses the column definition to choose the right encoding
|
|
setCol(row[column].encoder, offset + colstart[column], row[column].cellwidth, cell);
|
|
}
|
|
|
|
private final void setCol(int encoder, int offset, int length, long cell) {
|
|
switch (encoder) {
|
|
case kelondroColumn.encoder_none:
|
|
throw new kelondroException("ROW", "setColLong has celltype none, no encoder given");
|
|
case kelondroColumn.encoder_b64e:
|
|
kelondroBase64Order.enhancedCoder.encodeLong(cell, rowinstance, offset, length);
|
|
break;
|
|
case kelondroColumn.encoder_b256:
|
|
kelondroNaturalOrder.encodeLong(cell, rowinstance, offset, length);
|
|
break;
|
|
case kelondroColumn.encoder_bytes:
|
|
throw new kelondroException("ROW", "setColLong of celltype bytes not applicable");
|
|
}
|
|
}
|
|
|
|
public final byte[] getCol(String nickname, byte[] dflt) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
kelondroColumn col = (kelondroColumn) ref[0];
|
|
byte[] cell = new byte[col.cellwidth];
|
|
System.arraycopy(rowinstance, offset + ((Integer) ref[1]).intValue(), cell, 0, cell.length);
|
|
return cell;
|
|
}
|
|
|
|
public final String getColString(String nickname, String dflt, String encoding) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
kelondroColumn col = (kelondroColumn) ref[0];
|
|
return getColString(col.encoder, ((Integer) ref[1]).intValue(), col.cellwidth, encoding);
|
|
}
|
|
|
|
public final String getColString(int column, String encoding) {
|
|
return getColString(row[column].encoder, colstart[column], row[column].cellwidth, encoding);
|
|
}
|
|
|
|
private final String getColString(int encoder, int clstrt, int length, String encoding) {
|
|
if (rowinstance[offset + clstrt] == 0) return null;
|
|
if (length > rowinstance.length - offset - clstrt) length = rowinstance.length - offset - clstrt;
|
|
while ((length > 0) && (rowinstance[offset + clstrt + length - 1] == 0)) length--;
|
|
if (length == 0) return null;
|
|
try {
|
|
if ((encoding == null) || (encoding.length() == 0))
|
|
return new String(rowinstance, offset + clstrt, length);
|
|
else
|
|
return new String(rowinstance, offset + clstrt, length, encoding);
|
|
} catch (UnsupportedEncodingException e) {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
public final long getColLong(String nickname, long dflt) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
kelondroColumn col = (kelondroColumn) ref[0];
|
|
int clstrt = ((Integer) ref[1]).intValue();
|
|
return getColLong(col.encoder, clstrt, col.cellwidth);
|
|
}
|
|
|
|
public final long getColLong(int column) {
|
|
// uses the column definition to choose the right encoding
|
|
return getColLong(row[column].encoder, colstart[column], row[column].cellwidth);
|
|
}
|
|
|
|
protected final long getColLong(int encoder, int clstrt, int length) {
|
|
switch (encoder) {
|
|
case kelondroColumn.encoder_none:
|
|
throw new kelondroException("ROW", "getColLong has celltype none, no encoder given");
|
|
case kelondroColumn.encoder_b64e:
|
|
// start - fix for badly stored parameters
|
|
if ((length >= 3) && (rowinstance[offset + clstrt] == '[') && (rowinstance[offset + clstrt + 1] == 'B') && (rowinstance[offset + clstrt + 2] == '@')) return 0;
|
|
if ((length == 2) && (rowinstance[offset + clstrt] == '[') && (rowinstance[offset + clstrt + 1] == 'B')) return 0;
|
|
if ((length == 1) && (rowinstance[offset + clstrt] == '[')) return 0;
|
|
boolean maxvalue = true;
|
|
for (int i = 0; i < length; i++) if (rowinstance[offset + clstrt + i] != '_') {maxvalue = false; break;}
|
|
if (maxvalue) return 0;
|
|
// stop - fix for badly stored parameters
|
|
return kelondroBase64Order.enhancedCoder.decodeLong(rowinstance, offset + clstrt, length);
|
|
case kelondroColumn.encoder_b256:
|
|
return kelondroNaturalOrder.decodeLong(rowinstance, offset + clstrt, length);
|
|
case kelondroColumn.encoder_bytes:
|
|
throw new kelondroException("ROW", "getColLong of celltype bytes not applicable");
|
|
}
|
|
throw new kelondroException("ROW", "getColLong did not find appropriate encoding");
|
|
}
|
|
|
|
public final byte getColByte(String nickname, byte dflt) {
|
|
if (nickref == null) genNickRef();
|
|
Object[] ref = (Object[]) nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
return rowinstance[offset + ((Integer) ref[1]).intValue()];
|
|
}
|
|
|
|
public final byte getColByte(int column) {
|
|
return rowinstance[offset + colstart[column]];
|
|
}
|
|
|
|
public final byte[] getPrimaryKeyBytes() {
|
|
byte[] c = new byte[primaryKeyLength];
|
|
System.arraycopy(rowinstance, offset + ((primaryKeyIndex < 0) ? 0 : colstart[primaryKeyIndex]), c, 0, primaryKeyLength);
|
|
return c;
|
|
}
|
|
|
|
public final byte[] getColBytes(int column) {
|
|
assert offset + colstart[column] + row[column].cellwidth <= rowinstance.length :
|
|
"column = " + column + ", offset = " + offset + ", colstart[column] = " + colstart[column] + ", row[column].cellwidth() = " + row[column].cellwidth + ", rowinstance.length = " + rowinstance.length;
|
|
int w = row[column].cellwidth;
|
|
byte[] c = new byte[w];
|
|
System.arraycopy(rowinstance, offset + colstart[column], c, 0, w);
|
|
return c;
|
|
}
|
|
|
|
public final char[] getColChars(int column) {
|
|
int w = row[column].cellwidth;
|
|
char[] c = new char[w];
|
|
System.arraycopy(rowinstance, offset + colstart[column], c, 0, w);
|
|
return c;
|
|
}
|
|
|
|
public final void writeToArray(int column, byte[] target, int targetOffset) {
|
|
// this method shall replace the getColBytes where possible, bacause it may reduce the number of new byte[] allocations
|
|
assert (targetOffset + row[column].cellwidth <= target.length) : "targetOffset = " + targetOffset + ", target.length = " + target.length + ", row[column].cellwidth() = " + row[column].cellwidth;
|
|
System.arraycopy(rowinstance, offset + colstart[column], target, targetOffset, row[column].cellwidth);
|
|
}
|
|
|
|
public final String toPropertyForm(boolean includeBraces, boolean decimalCardinal, boolean longname) {
|
|
serverByteBuffer bb = new serverByteBuffer();
|
|
if (includeBraces) bb.append('{');
|
|
for (int i = 0; i < row.length; i++) {
|
|
bb.append((longname) ? row[i].description : row[i].nickname);
|
|
bb.append('=');
|
|
if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_cardinal)) {
|
|
bb.append(Long.toString(getColLong(i)));
|
|
} else if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_bitfield)) {
|
|
bb.append((new kelondroBitfield(getColBytes(i))).exportB64());
|
|
} else if ((decimalCardinal) && (row[i].celltype == kelondroColumn.celltype_binary)) {
|
|
assert row[i].cellwidth == 1;
|
|
bb.append(Integer.toString((0xff & getColByte(i))));
|
|
} else {
|
|
bb.append(rowinstance, offset + colstart[i], row[i].cellwidth);
|
|
}
|
|
if (i < row.length - 1) {
|
|
bb.append(',');
|
|
if (longname) bb.append(' ');
|
|
}
|
|
}
|
|
if (includeBraces) bb.append('}');
|
|
//System.out.println("DEBUG-ROW " + bb.toString());
|
|
return bb.toString();
|
|
}
|
|
|
|
public final String toString() {
|
|
return toPropertyForm(true, false, false);
|
|
}
|
|
|
|
}
|
|
|
|
public final class EntryIndex extends Entry {
|
|
private int index;
|
|
public EntryIndex(byte[] row, int i) {
|
|
super(row, false);
|
|
this.index = i;
|
|
}
|
|
public int index() {
|
|
return index;
|
|
}
|
|
}
|
|
|
|
public final static void long2bytes(long x, byte[] b, int offset, int length) {
|
|
for (int i = length - 1; i >= 0; i--) {
|
|
b[offset + i] = (byte) (x & 0XFF);
|
|
x >>= 8;
|
|
}
|
|
}
|
|
|
|
public final static long bytes2long(byte[] b, int offset, int length) {
|
|
if (b == null) return 0;
|
|
long x = 0;
|
|
for (int i = 0; i < length; i++) x = (x << 8) | (0xff & b[offset + i]);
|
|
return x;
|
|
}
|
|
|
|
public final boolean subsumes(kelondroRow otherRow) {
|
|
// returns true, if this row has at least all columns as the other row
|
|
// and possibly some more
|
|
if (this.objectsize < otherRow.objectsize) return false;
|
|
for (int i = 0; i < otherRow.row.length; i++) {
|
|
if ((this.row[i].cellwidth == otherRow.row[i].cellwidth) &&
|
|
(this.row[i].celltype == kelondroColumn.celltype_bitfield) &&
|
|
(otherRow.row[i].celltype == kelondroColumn.celltype_binary)) continue;
|
|
if (!(this.row[i].equals(otherRow.row[i]))) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public final boolean equals(kelondroRow otherRow) {
|
|
if (this.objectsize != otherRow.objectsize) return false;
|
|
for (int i = 0; i < otherRow.row.length; i++) {
|
|
if (!(this.row[i].equals(otherRow.row[i]))) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
}
|