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A reactive Java web server.
/*
* Copyright (c) 1998-2015 Caucho Technology -- all rights reserved
*
* This file is part of Baratine(TM)
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Baratine 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.
*
* Baratine 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Baratine; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.v5.kelp;
import static com.caucho.v5.kelp.DatabaseKelp.BLOCK_SIZE;
import java.io.IOException;
import java.nio.file.Path;
import com.caucho.v5.amp.Amp;
import com.caucho.v5.amp.ServicesAmp;
import com.caucho.v5.config.ConfigException;
import com.caucho.v5.store.temp.TempStore;
import com.caucho.v5.store.temp.TempStoreBuilder;
import com.caucho.v5.util.L10N;
/**
* The store manages the block-based persistent store file. Each table
* will have its own store file, table.db.
*
* The store is log-based around segments. Each segment is write-only
* until it is filled and the garbage-collected.
*/
public class DatabaseKelpBuilder
{
private static final L10N L = new L10N(DatabaseKelpBuilder.class);
static final int SEGMENT_SIZE = 1024 * 1024;
static final int SEGMENT_TAIL = 2 * BLOCK_SIZE;
private Path _path;
private int _segmentSize = SEGMENT_SIZE;
private int _segmentSizeMin = -1;
private int _segmentSizeMax = -1;
private int _segmentSizeFactorNew = 64;
private int _segmentSizeFactorGc = 8;
private int _btreeNodeSize = 8 * BLOCK_SIZE;
private int _journalSegmentSize = 2 * 1024 * 1024;
private int _deltaMax = 16;
private long _memorySize = 4 * 1024 * 1024;
private ServicesAmp _rampManager;
private int _gcThreshold = 4;
private int _gcMaxCollect = -1;
private int _blobInlineMax = 2 * 1024;
private int _blobPageSizeMax;
private int _deltaLeafMax = 256;
private int _deltaTreeMax = 8;
private boolean _isValidate = false; // true;
private TempStore _tempStore;
public DatabaseKelpBuilder()
{
}
public DatabaseKelpBuilder path(Path path)
{
_path = path;
return this;
}
public DatabaseKelpBuilder segmentSize(int size)
{
if (size % BLOCK_SIZE != 0) {
throw new IllegalArgumentException(L.l("segment must be a multiple of the block size"));
}
int blocks = size / BLOCK_SIZE;
if (blocks < 8) {
throw new IllegalArgumentException(L.l("segment must have at least 8 blocks"));
}
_segmentSize = size;
return this;
}
public DatabaseKelpBuilder segmentSizeMin(int size)
{
if (Integer.bitCount(size) != 1) {
throw new IllegalArgumentException(L.l("segment 0x{0} must be a power of 2",
Integer.toHexString(size)));
}
int blocks = size / BLOCK_SIZE;
if (blocks < 8) {
throw new IllegalArgumentException(L.l("segment must have at least 8 blocks"));
}
_segmentSizeMin = size;
return this;
}
public int getSegmentSizeMin()
{
if (_segmentSizeMin > 0) {
return _segmentSizeMin;
}
else {
return _segmentSize;
}
}
public DatabaseKelpBuilder segmentSizeMax(int size)
{
if (Integer.bitCount(size) != 1) {
throw new IllegalArgumentException(L.l("segment 0x{0} must be a power of 2",
Integer.toHexString(size)));
}
int blocks = size / BLOCK_SIZE;
if (blocks < 8) {
throw new IllegalArgumentException(L.l("segment must have at least 8 blocks"));
}
_segmentSizeMax = size;
return this;
}
public DatabaseKelpBuilder segmentSizeFactorNew(int factor)
{
if (Integer.bitCount(factor) != 1) {
throw new IllegalArgumentException(L.l("segment factor must be a power of 2",
Integer.toHexString(factor)));
}
_segmentSizeFactorNew = factor;
return this;
}
public int getSegmentSizeFactorNew()
{
return _segmentSizeFactorNew;
}
public DatabaseKelpBuilder segmentSizeFactorGc(int factor)
{
if (Integer.bitCount(factor) != 1) {
throw new IllegalArgumentException(L.l("segment factor must be a power of 2",
Integer.toHexString(factor)));
}
_segmentSizeFactorGc = factor;
return this;
}
public int getSegmentSizeFactorGc()
{
return _segmentSizeFactorGc;
}
public int getSegmentSizeMax()
{
if (_segmentSizeMax > 0) {
return _segmentSizeMax;
}
else {
return _segmentSize;
}
}
public int getSegmentSize()
{
return _segmentSize;
}
public DatabaseKelpBuilder journalSegmentSize(int size)
{
if (size % BLOCK_SIZE != 0) {
throw new IllegalArgumentException(L.l("segment must be a multiple of the block size"));
}
int blocks = size / BLOCK_SIZE;
if (blocks < 8) {
throw new IllegalArgumentException(L.l("segment must have at least 8 blocks"));
}
_journalSegmentSize = size;
return this;
}
public int getJournalSegmentSize()
{
return _journalSegmentSize;
}
public DatabaseKelpBuilder btreeNodeSize(int size)
{
size = (size + BLOCK_SIZE - 1);
size -= size % BLOCK_SIZE;
_btreeNodeSize = size;
if (size <= 0) {
throw new IllegalArgumentException(L.l("{0} is an invalid btreeNodeSize.",
size));
}
return this;
}
public int getBtreeNodeLength()
{
return _btreeNodeSize;
}
public DatabaseKelpBuilder deltaMax(int max)
{
if (max < 0) {
throw new IllegalArgumentException();
}
_deltaMax = max;
return this;
}
public int getDeltaMax()
{
return _deltaMax;
}
public DatabaseKelpBuilder blobInlineMax(int max)
{
if (max < 0) {
throw new IllegalArgumentException();
}
_blobInlineMax = max;
return this;
}
public int getBlobInlineMax()
{
return _blobInlineMax;
}
public DatabaseKelpBuilder blobPageSizeMax(int max)
{
if (max < 0) {
throw new IllegalArgumentException();
}
_blobPageSizeMax = max;
return this;
}
public int getBlobPageSizeMax()
{
return _blobPageSizeMax;
}
public DatabaseKelpBuilder gcThreshold(int value)
{
if (value < 0) {
throw new IllegalArgumentException();
}
_gcThreshold = value;
return this;
}
public int getGcThreshold()
{
return _gcThreshold;
}
public DatabaseKelpBuilder gcMaxCollect(int value)
{
if (value < 1) {
throw new IllegalArgumentException();
}
_gcMaxCollect = value;
return this;
}
public int getGcMaxCollect()
{
if (_gcMaxCollect > 0) {
return _gcMaxCollect;
}
else {
return 2 * _gcThreshold;
}
}
public DatabaseKelpBuilder memorySize(long memorySize)
{
_memorySize = memorySize;
return this;
}
public long getMemorySize()
{
return _memorySize;
}
public DatabaseKelpBuilder rampManager(ServicesAmp manager)
{
_rampManager = manager;
return this;
}
public ServicesAmp getManager()
{
return _rampManager;
}
public DatabaseKelpBuilder deltaLeafMax(int max)
{
_deltaLeafMax = max;
return this;
}
public int getDeltaLeafMax()
{
return _deltaLeafMax;
}
public DatabaseKelpBuilder deltaTreeMax(int max)
{
_deltaTreeMax = max;
return this;
}
public int getDeltaTreeMax()
{
return _deltaTreeMax;
}
public DatabaseKelpBuilder validate(boolean isValidate)
{
_isValidate = isValidate;
return this;
}
public boolean isValidate()
{
return _isValidate;
}
public DatabaseKelpBuilder tempStore(TempStore tempStore)
{
_tempStore = tempStore;
return this;
}
public TempStore getTempStore()
{
return _tempStore;
}
public DatabaseKelp build()
{
if (_path == null) {
throw new ConfigException(L.l("database requires a configured path"));
}
if (_rampManager == null) {
_rampManager = ServicesAmp.newManager().get();
}
if (_tempStore == null) {
Path tmpPath = _path.resolveSibling(_path.getFileName() + ".tmp");
TempStoreBuilder tempBuilder = new TempStoreBuilder(tmpPath);
_tempStore = tempBuilder.build();
}
if (_blobPageSizeMax <= 0) {
_blobPageSizeMax = Math.max(getSegmentSizeMax() / 4, BLOCK_SIZE * 8);
_blobPageSizeMax = Math.min(getSegmentSizeMax() - BLOCK_SIZE, _blobPageSizeMax);
}
if (getSegmentSizeMax() - BLOCK_SIZE < _blobPageSizeMax) {
throw new ConfigException(L.l("blob-page-size-max {0} is too large for segment-size {1}",
_blobPageSizeMax, getSegmentSizeMin()));
}
if (getSegmentSizeMin() - BLOCK_SIZE < _btreeNodeSize) {
throw new ConfigException(L.l("btree-node-size max {0} is too large for segment-size {1}",
_blobPageSizeMax, getSegmentSizeMin()));
}
// Row row = _rowBuilder.build();
try {
return new DatabaseKelp(_path,
this);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
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