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765 lines
32 KiB
765 lines
32 KiB
// Row.java
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// (C) 2006 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
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// first published 24.05.2006 on http://www.anomic.de
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//
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// This is a part of the kelondro database,
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// which is a part of YaCy, a peer-to-peer based web search engine
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//
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// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
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// $LastChangedRevision: 1986 $
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// $LastChangedBy: orbiter $
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//
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// LICENSE
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package net.yacy.kelondro.index;
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import java.io.UnsupportedEncodingException;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Map;
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import java.util.StringTokenizer;
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import java.util.concurrent.ArrayBlockingQueue;
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import net.yacy.kelondro.logging.Log;
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import net.yacy.kelondro.order.AbstractOrder;
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import net.yacy.kelondro.order.Base64Order;
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import net.yacy.kelondro.order.Bitfield;
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import net.yacy.kelondro.order.ByteOrder;
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import net.yacy.kelondro.order.NaturalOrder;
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import net.yacy.kelondro.order.Order;
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import net.yacy.kelondro.util.ByteBuffer;
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import net.yacy.kelondro.util.kelondroException;
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public final class Row {
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protected final Column[] row;
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public final int[] colstart;
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public final ByteOrder objectOrder;
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public final int objectsize;
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public final int primaryKeyLength;
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protected Map<String, Object[]> nickref = null; // a mapping from nicknames to Object[2]{kelondroColumn, Integer(colstart)}
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public Row(final Column[] row, final ByteOrder objectOrder) {
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assert objectOrder != null;
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this.objectOrder = objectOrder;
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this.row = row;
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assert (objectOrder != null);
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this.colstart = new int[row.length];
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int os = 0;
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for (int i = 0; i < row.length; i++) {
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this.colstart[i] = os;
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os+= this.row[i].cellwidth;
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}
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this.objectsize = os;
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this.primaryKeyLength = row[0].cellwidth;
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}
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public Row(final String structure, final ByteOrder objectOrder) {
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assert (objectOrder != null);
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this.objectOrder = objectOrder;
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// define row with row syntax
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// example:
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//# Structure=<pivot-12>,'=',<UDate-3>,<VDate-3>,<LCount-2>,<GCount-2>,<ICount-2>,<DCount-2>,<TLength-3>,<WACount-3>,<WUCount-3>,<Flags-1>
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// parse pivot definition:
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//does not work with 'String idx-26 "id = created + originator",String cat-8,String rec-14,short dis-2 {b64e},String att-462'
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//structure = structure.replace('=', ',');
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// parse property part definition:
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int p = structure.indexOf('|');
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if (p < 0) p = structure.length();
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final ArrayList<Column> l = new ArrayList<Column>();
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final String attr = structure.substring(0, p);
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final StringTokenizer st = new StringTokenizer(attr, ",");
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while (st.hasMoreTokens()) {
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l.add(new Column(st.nextToken()));
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}
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// define columns
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this.row = new Column[l.size()];
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this.colstart = new int[row.length];
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int os = 0;
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for (int i = 0; i < l.size(); i++) {
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this.colstart[i] = os;
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this.row[i] = l.get(i);
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os += this.row[i].cellwidth;
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}
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this.objectsize = os;
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this.primaryKeyLength = row[0].cellwidth;
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}
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public final ByteOrder getOrdering() {
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return this.objectOrder;
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}
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protected final void genNickRef() {
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if (nickref != null) return;
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nickref = new HashMap<String, Object[]>(row.length);
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for (int i = 0; i < row.length; i++) nickref.put(row[i].nickname, new Object[]{row[i], Integer.valueOf(colstart[i])});
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}
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public final int columns() {
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return this.row.length;
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}
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public final Column column(final int col) {
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return row[col];
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}
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public final int width(final int column) {
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return this.row[column].cellwidth;
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}
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public final int[] widths() {
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final int[] w = new int[this.row.length];
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for (int i = 0; i < this.row.length; i++) w[i] = row[i].cellwidth;
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return w;
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}
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public final String toString() {
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final StringBuilder s = new StringBuilder();
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s.append(row[0].toString());
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for (int i = 1; i < row.length; i++) {
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s.append(", ");
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s.append(row[i].toString());
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}
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return new String(s);
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}
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public final Entry newEntry() {
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return new Entry();
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}
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public final Entry newEntry(final byte[] rowinstance) {
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if (rowinstance == null) return null;
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//assert (rowinstance[0] != 0);
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if (!(this.objectOrder.wellformed(rowinstance, 0, row[0].cellwidth))) {
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Log.logWarning("kelondroRow", "row not well-formed: rowinstance[0] = " + new String(rowinstance, 0, row[0].cellwidth) + " / " + NaturalOrder.arrayList(rowinstance, 0, row[0].cellwidth));
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return null;
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}
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return new Entry(rowinstance, false);
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}
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public final Entry newEntry(final Entry oldrow, final int fromColumn) {
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if (oldrow == null) return null;
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assert (oldrow.getColBytes(0, false)[0] != 0);
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assert (this.objectOrder.wellformed(oldrow.getColBytes(0, false), 0, row[0].cellwidth));
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return new Entry(oldrow, fromColumn, false);
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}
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public final Entry newEntry(final byte[] rowinstance, final int start, final boolean clone) {
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if (rowinstance == null) return null;
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//assert (rowinstance[0] != 0);
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assert (this.objectOrder.wellformed(rowinstance, start, row[0].cellwidth)) : "rowinstance = " + new String(rowinstance);
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// this method offers the option to clone the content
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// this is necessary if it is known that the underlying byte array may change and therefore
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// the reference to the byte array does not contain the original content
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return new Entry(rowinstance, start, clone);
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}
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public final Entry newEntry(final byte[][] cells) {
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if (cells == null) return null;
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assert (cells[0][0] != 0);
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assert (this.objectOrder.wellformed(cells[0], 0, row[0].cellwidth));
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return new Entry(cells);
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}
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public final Entry newEntry(final String external, final boolean decimalCardinal) {
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if (external == null) return null;
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return new Entry(external, decimalCardinal);
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}
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public final EntryIndex newEntryIndex(final byte[] rowinstance, final int index) {
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if (rowinstance == null) return null;
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assert (rowinstance[0] != 0);
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assert (this.objectOrder.wellformed(rowinstance, 0, row[0].cellwidth));
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return new EntryIndex(rowinstance, index);
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}
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public static class EntryComparator extends AbstractOrder<Entry> implements Order<Entry>, Comparator<Entry>, Cloneable {
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ByteOrder base;
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public EntryComparator(final ByteOrder baseOrder) {
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this.base = baseOrder;
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}
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public int compare(final Entry a, final Entry b) {
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return a.compareTo(b);
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}
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public boolean equal(final Entry a, final Entry b) {
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return a.equals(b);
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}
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public Order<Entry> clone() {
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return new EntryComparator(base);
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}
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public long cardinal(final Entry key) {
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return base.cardinal(key.bytes(), 0, key.getPrimaryKeyLength());
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}
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public String signature() {
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return base.signature();
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}
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public boolean wellformed(final Entry a) {
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return base.wellformed(a.getPrimaryKeyBytes());
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}
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}
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public class Entry implements Comparable<Entry>, Comparator<Entry> {
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private byte[] rowinstance;
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private int offset; // the offset where the row starts within rowinstance
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public Entry() {
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rowinstance = new byte[objectsize];
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//for (int i = 0; i < objectsize; i++) this.rowinstance[i] = 0;
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offset = 0;
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}
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public Entry(final byte[] newrow, final boolean forceclone) {
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this(newrow, 0, forceclone);
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}
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public Entry(final Entry oldrow, final int fromColumn, final boolean forceclone) {
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this(oldrow.rowinstance, oldrow.offset + oldrow.colstart(fromColumn), forceclone);
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}
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public Entry(final byte[] newrow, final int start, final boolean forceclone) {
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if ((!forceclone) && (newrow.length - start >= objectsize)) {
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this.rowinstance = newrow;
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this.offset = start;
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} else {
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this.rowinstance = new byte[objectsize];
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System.arraycopy(newrow, start, this.rowinstance, 0, objectsize);
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this.offset = 0;
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}
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//for (int i = ll; i < objectsize; i++) this.rowinstance[i] = 0;
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}
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public Entry(final byte[][] cols) {
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assert row.length == cols.length : "cols.length = " + cols.length + ", row.length = " + row.length;
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this.rowinstance = new byte[objectsize];
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this.offset = 0;
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int ll;
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int cs, cw;
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for (int i = 0; i < row.length; i++) {
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cs = colstart[i];
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cw = row[i].cellwidth;
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if ((i >= cols.length) || (cols[i] == null)) {
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for (int j = 0; j < cw; j++) this.rowinstance[cs + j] = 0;
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} else {
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//assert cols[i].length <= cw : "i = " + i + ", cols[i].length = " + cols[i].length + ", cw = " + cw;
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ll = Math.min(cols[i].length, cw);
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System.arraycopy(cols[i], 0, rowinstance, cs, ll);
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for (int j = ll; j < cw; j++) this.rowinstance[cs + j] = 0;
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}
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}
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}
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public Entry(String external, final boolean decimalCardinal) {
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// parse external form
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if (external.length() > 0 && external.charAt(0) == '{') external = external.substring(1, external.length() - 1);
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final String[] elts = external.split(",");
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if (nickref == null) genNickRef();
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String nick;
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int p;
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this.rowinstance = new byte[objectsize];
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this.offset = 0;
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for (int i = 0; i < elts.length; i++) {
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p = elts[i].indexOf('=');
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if (p > 0) {
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nick = elts[i].substring(0, p).trim();
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if (p + 1 == elts[i].length())
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setCol(nick, null);
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else {
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if ((decimalCardinal) && (row[i].celltype == Column.celltype_cardinal)) {
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try {
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setCol(nick, Long.parseLong(elts[i].substring(p + 1).trim()));
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} catch (final NumberFormatException e) {
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Log.logSevere("kelondroRow", "NumberFormatException for celltype_cardinal; row = " + i + ", celltype = " + row[i].celltype + ", encoder = " + row[i].encoder + ", value = '" + elts[i].substring(p + 1).trim() + "'");
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setCol(nick, 0);
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}
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} else if ((decimalCardinal) && (row[i].celltype == Column.celltype_binary)) {
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assert row[i].cellwidth == 1;
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try {
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setCol(nick, new byte[]{(byte) Integer.parseInt(elts[i].substring(p + 1).trim())});
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} catch (final NumberFormatException e) {
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Log.logSevere("kelondroRow", "NumberFormatException for celltype_binary; row = " + i + ", celltype = " + row[i].celltype + ", encoder = " + row[i].encoder + ", value = '" + elts[i].substring(p + 1).trim() + "'");
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setCol(nick, new byte[]{0});
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}
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} else if ((decimalCardinal) && (row[i].celltype == Column.celltype_bitfield)) {
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setCol(nick, (new Bitfield(row[i].cellwidth, elts[i].substring(p + 1).trim())).bytes());
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} else {
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setCol(nick, elts[i].substring(p + 1).trim().getBytes());
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}
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}
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}
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}
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}
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protected final int colstart(final int column) {
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return colstart[column];
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}
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protected final int cellwidth(final int column) {
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return row[column].cellwidth;
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}
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public final int compareTo(final Entry o) {
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// compares only the content of the primary key
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if (objectOrder == null) throw new kelondroException("objects cannot be compared, no order given");
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return objectOrder.compare(this.bytes(), 0, this.getPrimaryKeyLength(), o.bytes(), 0, o.getPrimaryKeyLength());
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}
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public int compare(final Entry o1, final Entry o2) {
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return o1.compareTo(o2);
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}
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// compare the content of the primary key
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public boolean equals(final Object obj) {
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if (this == obj) return true;
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if (obj == null) return false;
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if (!(obj instanceof Entry)) return false;
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final Entry other = (Entry) obj;
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final byte[] t = this.bytes();
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final byte[] o = other.bytes();
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for (int i = 0; i < primaryKeyLength; i++) {
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if (t[i] != o[i]) return false;
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}
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return true;
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}
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public int hashCode() {
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final byte[] b = this.getPrimaryKeyBytes();
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final int len = b.length;
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int h = 1;
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for (int i = 0; i < len; i++) {
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h = 31 * h + b[i];
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}
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return h;
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}
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public final byte[] bytes() {
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if ((offset == 0) && (rowinstance.length == objectsize)) {
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return rowinstance;
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}
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final byte[] tmp = new byte[objectsize];
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System.arraycopy(rowinstance, offset, tmp, 0, objectsize);
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return tmp;
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}
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public final void writeToArray(final byte[] target, final int targetOffset) {
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// this method shall replace the byte()s where possible, bacause it may reduce the number of new byte[] allocations
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assert (targetOffset + objectsize <= target.length) : "targetOffset = " + targetOffset + ", target.length = " + target.length + ", objectsize = " + objectsize;
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System.arraycopy(rowinstance, offset, target, targetOffset, objectsize);
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}
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public final int columns() {
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return row.length;
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}
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public final int objectsize() {
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return objectsize;
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}
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public final boolean empty(final int column) {
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return rowinstance[offset + colstart[column]] == 0;
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}
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@Deprecated
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public final void setCol(final String nickname, final char c) {
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if (nickref == null) genNickRef();
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final Object[] ref = nickref.get(nickname);
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if (ref == null) return;
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rowinstance[offset + ((Integer) ref[1]).intValue()] = (byte) c;
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}
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@Deprecated
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public final void setCol(final String nickname, final byte[] cell) {
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if (nickref == null) genNickRef();
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final Object[] ref = nickref.get(nickname);
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if (ref == null) return;
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final Column col = (Column) ref[0];
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setCol(((Integer) ref[1]).intValue(), col.cellwidth, cell);
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}
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public final void setCol(final int column, final byte[] cell) {
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setCol(colstart[column], row[column].cellwidth, cell);
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}
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public final void setCol(final int column, final char[] cell) {
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final int clstrt = colstart[column];
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for (int i = 0; i < cell.length; i++) rowinstance[offset + clstrt + i] = (byte) cell[i];
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for (int i = cell.length; i < row[column].cellwidth; i++) rowinstance[offset + clstrt + i] = 0;
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}
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private final void setCol(final int clstrt, int length, final byte[] cell) {
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if (cell == null) {
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while (length-- > 0) rowinstance[offset + clstrt + length] = 0;
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} else {
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if (cell.length < length) {
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System.arraycopy(cell, 0, rowinstance, offset + clstrt, cell.length);
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while (length-- > cell.length) rowinstance[offset + clstrt + length] = 0;
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} else {
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//assert cell.length == length;
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System.arraycopy(cell, 0, rowinstance, offset + clstrt, length);
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}
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}
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}
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public final void setCol(final int column, final byte c) {
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rowinstance[offset + colstart[column]] = c;
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}
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public final void setCol(final int column, final String cell) {
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setCol(column, cell.getBytes());
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}
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public final void setCol(final int column, final String cell, final String encoding) {
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if (encoding == null)
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setCol(column, cell.getBytes());
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else
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try {
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setCol(column, (cell == null) ? null : cell.getBytes(encoding));
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} catch (final UnsupportedEncodingException e) {
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Log.logSevere("Row", "", e);
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}
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}
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public final void setCol(final String nick, final String cell, final String encoding) {
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if (encoding == null)
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setCol(nick, cell.getBytes());
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else
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try {
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setCol(nick, cell.getBytes(encoding));
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} catch (final UnsupportedEncodingException e) {
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Log.logSevere("Row", "", e);
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}
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}
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@Deprecated
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public final void setCol(final String nickname, final long cell) {
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if (nickref == null) genNickRef();
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final Object[] ref = nickref.get(nickname);
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if (ref == null) return;
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final Column col = (Column) ref[0];
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setCol(col.encoder, offset + ((Integer) ref[1]).intValue(), col.cellwidth, cell);
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}
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public final void setCol(final int column, final long cell) {
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// uses the column definition to choose the right encoding
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setCol(row[column].encoder, offset + colstart[column], row[column].cellwidth, cell);
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}
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private final void setCol(final int encoder, final int offset, final int length, final long cell) {
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switch (encoder) {
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case Column.encoder_none:
|
|
throw new kelondroException("ROW", "setColLong has celltype none, no encoder given");
|
|
case Column.encoder_b64e:
|
|
Base64Order.enhancedCoder.encodeLong(cell, rowinstance, offset, length);
|
|
break;
|
|
case Column.encoder_b256:
|
|
NaturalOrder.encodeLong(cell, rowinstance, offset, length);
|
|
break;
|
|
case Column.encoder_bytes:
|
|
throw new kelondroException("ROW", "setColLong of celltype bytes not applicable");
|
|
}
|
|
}
|
|
|
|
public final long incCol(final int column, final long c) {
|
|
final int encoder = row[column].encoder;
|
|
final int colstrt = colstart[column];
|
|
final int cellwidth = row[column].cellwidth;
|
|
long l;
|
|
switch (encoder) {
|
|
case Column.encoder_b64e:
|
|
l = c + Base64Order.enhancedCoder.decodeLong(rowinstance, offset + colstrt, cellwidth);
|
|
Base64Order.enhancedCoder.encodeLong(l, rowinstance, offset + colstrt, cellwidth);
|
|
return l;
|
|
case Column.encoder_b256:
|
|
l = c + NaturalOrder.decodeLong(rowinstance, offset + colstrt, cellwidth);
|
|
NaturalOrder.encodeLong(l, rowinstance, offset + colstrt, cellwidth);
|
|
return l;
|
|
}
|
|
throw new kelondroException("ROW", "addCol did not find appropriate encoding");
|
|
}
|
|
|
|
@Deprecated
|
|
public final byte[] getCol(final String nickname, final byte[] dflt) {
|
|
if (nickref == null) genNickRef();
|
|
final Object[] ref = nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
final Column col = (Column) ref[0];
|
|
final byte[] cell = new byte[col.cellwidth];
|
|
System.arraycopy(rowinstance, offset + ((Integer) ref[1]).intValue(), cell, 0, cell.length);
|
|
return cell;
|
|
}
|
|
|
|
@Deprecated
|
|
public final String getColString(final String nickname, final String dflt, final String encoding) {
|
|
if (nickref == null) genNickRef();
|
|
final Object[] ref = nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
final Column col = (Column) ref[0];
|
|
return getColString(((Integer) ref[1]).intValue(), col.cellwidth, encoding);
|
|
}
|
|
|
|
public final String getColString(final int column, final String encoding) {
|
|
return getColString(colstart[column], row[column].cellwidth, encoding);
|
|
}
|
|
|
|
private final String getColString(final int clstrt, int length, final String encoding) {
|
|
if (rowinstance[offset + clstrt] == 0) return null;
|
|
assert length <= rowinstance.length - offset - clstrt;
|
|
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);
|
|
return new String(rowinstance, offset + clstrt, length, encoding);
|
|
} catch (final UnsupportedEncodingException e) {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
@Deprecated
|
|
public final long getColLong(final String nickname, final long dflt) {
|
|
if (nickref == null) genNickRef();
|
|
final Object[] ref = nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
final Column col = (Column) ref[0];
|
|
final int clstrt = ((Integer) ref[1]).intValue();
|
|
return getColLong(col.encoder, clstrt, col.cellwidth);
|
|
}
|
|
|
|
public final long getColLong(final 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(final int encoder, final int clstrt, final int length) {
|
|
switch (encoder) {
|
|
case Column.encoder_none:
|
|
throw new kelondroException("ROW", "getColLong has celltype none, no encoder given");
|
|
case Column.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 Base64Order.enhancedCoder.decodeLong(rowinstance, offset + clstrt, length);
|
|
case Column.encoder_b256:
|
|
return NaturalOrder.decodeLong(rowinstance, offset + clstrt, length);
|
|
case Column.encoder_bytes:
|
|
throw new kelondroException("ROW", "getColLong of celltype bytes not applicable");
|
|
}
|
|
throw new kelondroException("ROW", "getColLong did not find appropriate encoding");
|
|
}
|
|
|
|
@Deprecated
|
|
public final byte getColByte(final String nickname, final byte dflt) {
|
|
if (nickref == null) genNickRef();
|
|
final Object[] ref = nickref.get(nickname);
|
|
if (ref == null) return dflt;
|
|
return rowinstance[offset + ((Integer) ref[1]).intValue()];
|
|
}
|
|
|
|
public final byte getColByte(final int column) {
|
|
return rowinstance[offset + colstart[column]];
|
|
}
|
|
|
|
public final byte[] getPrimaryKeyBytes() {
|
|
final byte[] c = new byte[primaryKeyLength];
|
|
System.arraycopy(rowinstance, offset, c, 0, primaryKeyLength);
|
|
return c;
|
|
}
|
|
|
|
public final int getPrimaryKeyLength() {
|
|
return primaryKeyLength;
|
|
}
|
|
|
|
public final byte[] getColBytes(final int column, boolean nullIfEmpty) {
|
|
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 clstrt = colstart[column];
|
|
final int w = row[column].cellwidth;
|
|
if (nullIfEmpty) {
|
|
int length = w;
|
|
while (length > 0 && rowinstance[offset + clstrt + length - 1] == 0) length--;
|
|
if (length == 0) return null;
|
|
}
|
|
final byte[] c = new byte[w];
|
|
System.arraycopy(rowinstance, offset + clstrt, c, 0, w);
|
|
return c;
|
|
}
|
|
|
|
public final char[] getColChars(final int column) {
|
|
final int w = row[column].cellwidth;
|
|
final char[] c = new char[w];
|
|
System.arraycopy(rowinstance, offset + colstart[column], c, 0, w);
|
|
return c;
|
|
}
|
|
|
|
public final void writeToArray(final int column, final byte[] target, final 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(final boolean includeBraces, final boolean decimalCardinal, final boolean longname) {
|
|
final ByteBuffer bb = new ByteBuffer(objectsize() * 2);
|
|
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 == Column.celltype_cardinal)) {
|
|
bb.append(Long.toString(getColLong(i)));
|
|
} else if ((decimalCardinal) && (row[i].celltype == Column.celltype_bitfield)) {
|
|
bb.append((new Bitfield(getColBytes(i, true))).exportB64());
|
|
} else if ((decimalCardinal) && (row[i].celltype == Column.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 final int index;
|
|
public EntryIndex(final byte[] row, final int i) {
|
|
super(row, false);
|
|
this.index = i;
|
|
}
|
|
public int index() {
|
|
return index;
|
|
}
|
|
}
|
|
|
|
public Queue newQueue(final int maxsize) {
|
|
return new Queue(maxsize);
|
|
}
|
|
|
|
public final class Queue {
|
|
|
|
private final ArrayBlockingQueue<Entry> queue;
|
|
|
|
public Queue(final int maxsize) {
|
|
this.queue = new ArrayBlockingQueue<Entry>(maxsize);
|
|
}
|
|
|
|
public void put(final Entry e) throws InterruptedException {
|
|
this.queue.put(e);
|
|
}
|
|
|
|
public Entry take() throws InterruptedException {
|
|
return this.queue.take();
|
|
}
|
|
|
|
public Entry get(final byte[] key) {
|
|
for (Entry e: this.queue) {
|
|
if (objectOrder.compare(key, 0, key.length, e.bytes(), 0, e.getPrimaryKeyLength()) == 0) {
|
|
return e;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
public Entry delete(final byte[] key) {
|
|
final Iterator<Entry> i = this.queue.iterator();
|
|
Entry e;
|
|
while (i.hasNext()) {
|
|
e = i.next();
|
|
if (objectOrder.compare(key, 0, key.length, e.bytes(), 0, e.getPrimaryKeyLength()) == 0) {
|
|
i.remove();
|
|
return e;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public final static void long2bytes(long x, final byte[] b, final int offset, final int length) {
|
|
for (int i = length - 1; i >= 0; i--) {
|
|
b[offset + i] = (byte) (x & 0XFF);
|
|
x >>= 8;
|
|
}
|
|
}
|
|
|
|
public final static long bytes2long(final byte[] b, final int offset, final 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(final Row 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 == Column.celltype_bitfield) &&
|
|
(otherRow.row[i].celltype == Column.celltype_binary)) continue;
|
|
if (!(this.row[i].equals(otherRow.row[i]))) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public boolean equals(final Object obj) {
|
|
if (this == obj) return true;
|
|
if (obj == null) return false;
|
|
if (!(obj instanceof Row)) return false;
|
|
final Row other = (Row) obj;
|
|
if (this.objectsize != other.objectsize) return false;
|
|
if (this.columns() != other.columns()) return false;
|
|
for (int i = 0; i < other.row.length; i++) {
|
|
if (!(this.row[i].equals(other.row[i]))) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public int hashCode() {
|
|
return this.toString().hashCode();
|
|
}
|
|
|
|
}
|