#344

Committed 13 Jul 2025 09:44PM UTC coverage: 69.604% (+2.2%) from 67.389%

Build # #344

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Merge pull request #61 from bernardladenthin/develop

Merge bloom filter

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/src/main/java/net/ladenthin/bitcoinaddressfinder/persistence/lmdb/LMDBPersistence.java

// @formatter:off
/**
 * Copyright 2020 Bernard Ladenthin bernard.ladenthin@gmail.com
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
// @formatter:on
package net.ladenthin.bitcoinaddressfinder.persistence.lmdb;

import com.google.common.hash.BloomFilter;
import com.google.common.hash.Funnels;
import net.ladenthin.bitcoinaddressfinder.persistence.Persistence;
import net.ladenthin.bitcoinaddressfinder.persistence.PersistenceUtils;
import org.lmdbjava.CursorIterable;
import org.lmdbjava.Dbi;
import org.lmdbjava.Env;
import org.lmdbjava.EnvFlags;
import org.lmdbjava.KeyRange;
import org.lmdbjava.Txn;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.List;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import net.ladenthin.bitcoinaddressfinder.ByteBufferUtility;
import net.ladenthin.bitcoinaddressfinder.ByteConversion;
import net.ladenthin.bitcoinaddressfinder.KeyUtility;
import net.ladenthin.bitcoinaddressfinder.SeparatorFormat;
import net.ladenthin.bitcoinaddressfinder.configuration.CAddressFileOutputFormat;
import net.ladenthin.bitcoinaddressfinder.configuration.CLMDBConfigurationReadOnly;
import net.ladenthin.bitcoinaddressfinder.configuration.CLMDBConfigurationWrite;
import org.apache.commons.codec.binary.Hex;
import org.bitcoinj.base.Coin;
import org.bitcoinj.base.LegacyAddress;
import org.lmdbjava.BufferProxy;
import org.lmdbjava.ByteBufferProxy;

import static org.lmdbjava.DbiFlags.MDB_CREATE;
import static org.lmdbjava.Env.create;
import org.lmdbjava.EnvInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class LMDBPersistence implements Persistence {

    private static final String DB_NAME_HASH160_TO_COINT = "hash160toCoin";
    private static final int DB_COUNT = 1;
    
    private final Logger logger = LoggerFactory.getLogger(LMDBPersistence.class);

    private final PersistenceUtils persistenceUtils;
    private final CLMDBConfigurationWrite lmdbConfigurationWrite;
    private final CLMDBConfigurationReadOnly lmdbConfigurationReadOnly;
    private final KeyUtility keyUtility;
    private Env<ByteBuffer> env;
    private Dbi<ByteBuffer> lmdb_h160ToAmount;
    private long increasedCounter = 0;
    private long increasedSum = 0;
    private BloomFilter<byte[]> addressBloomFilter = null;


    public LMDBPersistence(CLMDBConfigurationWrite lmdbConfigurationWrite, PersistenceUtils persistenceUtils) {
        this.lmdbConfigurationReadOnly = null;
        this.lmdbConfigurationWrite = lmdbConfigurationWrite;
        this.persistenceUtils = persistenceUtils;
        this.keyUtility = new KeyUtility(persistenceUtils.network, new ByteBufferUtility(true));
    }

    public LMDBPersistence(CLMDBConfigurationReadOnly lmdbConfigurationReadOnly, PersistenceUtils persistenceUtils) {
        this.lmdbConfigurationReadOnly = lmdbConfigurationReadOnly;
        lmdbConfigurationWrite = null;
        this.persistenceUtils = persistenceUtils;
        this.keyUtility = new KeyUtility(persistenceUtils.network, new ByteBufferUtility(true));
    }
    
    @Override
    public void init() {
        if (lmdbConfigurationWrite != null) {
            initWritable();
        } else if (lmdbConfigurationReadOnly != null) {
            initReadOnly();
        } else {
            throw new IllegalArgumentException("Neither write nor read-only configuration provided.");
        }
        
        
        logStatsIfConfigured(true);
    }
    
    public void buildAddressBloomFilter() {
        logger.info("##### BEGIN: buildAddressBloomFilter #####");
        // Attention: slow!
        long count = count();

        BloomFilter<byte[]> filter = BloomFilter.create(Funnels.byteArrayFunnel(), count, lmdbConfigurationReadOnly.bloomFilterFpp);
        long inserted = 0;

        try (Txn<ByteBuffer> txn = env.txnRead()) {
            try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {
                for (CursorIterable.KeyVal<ByteBuffer> kv : iterable) {
                    ByteBuffer key = kv.key();
                    byte[] keyBytes = new byte[key.remaining()];
                    key.get(keyBytes);
                    key.rewind();
                    filter.put(keyBytes);
                    inserted++;
                }
            }
        }

        addressBloomFilter = filter;
        logger.info("Inserted {} addresses into BloomFilter", inserted);
        logger.info("##### END: buildAddressBloomFilter #####");
    }

    public void unloadBloomFilter() {
        addressBloomFilter = null;
    }
    
    private void initReadOnly() {
        BufferProxy<ByteBuffer> bufferProxy = getBufferProxyByUseProxyOptimal(lmdbConfigurationReadOnly.useProxyOptimal);
        env = create(bufferProxy).setMaxDbs(DB_COUNT).open(new File(lmdbConfigurationReadOnly.lmdbDirectory), EnvFlags.MDB_RDONLY_ENV, EnvFlags.MDB_NOLOCK);
        lmdb_h160ToAmount = env.openDbi(DB_NAME_HASH160_TO_COINT);
        
        if (lmdbConfigurationReadOnly.useBloomFilter) {
            buildAddressBloomFilter();
        }
    }

    private void initWritable() {
        // -Xmx10G -XX:MaxDirectMemorySize=5G
        // We always need an Env. An Env owns a physical on-disk storage file. One
        // Env can store many different databases (ie sorted maps).
        File lmdbDirectory = new File(lmdbConfigurationWrite.lmdbDirectory);
        lmdbDirectory.mkdirs();
        
        BufferProxy<ByteBuffer> bufferProxy = getBufferProxyByUseProxyOptimal(lmdbConfigurationWrite.useProxyOptimal);
        
        env = create(bufferProxy)
                // LMDB also needs to know how large our DB might be. Over-estimating is OK.
                .setMapSize(new ByteConversion().mibToBytes(lmdbConfigurationWrite.initialMapSizeInMiB))
                // LMDB also needs to know how many DBs (Dbi) we want to store in this Env.
                .setMaxDbs(DB_COUNT)
                // Now let's open the Env. The same path can be concurrently opened and
                // used in different processes, but do not open the same path twice in
                // the same process at the same time.
                
                //https://github.com/kentnl/CHI-Driver-LMDB
                .open(lmdbDirectory, EnvFlags.MDB_NOSYNC, EnvFlags.MDB_NOMETASYNC, EnvFlags.MDB_WRITEMAP, EnvFlags.MDB_MAPASYNC);
        // We need a Dbi for each DB. A Dbi roughly equates to a sorted map. The
        // MDB_CREATE flag causes the DB to be created if it doesn't already exist.
        lmdb_h160ToAmount = env.openDbi(DB_NAME_HASH160_TO_COINT, MDB_CREATE);
    }

    /**
     * https://github.com/lmdbjava/lmdbjava/wiki/Buffers
     *
     * @param useProxyOptimal
     * @return
     */
    private BufferProxy<ByteBuffer> getBufferProxyByUseProxyOptimal(boolean useProxyOptimal) {
        if (useProxyOptimal) {
            return ByteBufferProxy.PROXY_OPTIMAL;
        } else {
            return ByteBufferProxy.PROXY_SAFE;
        }
    }
    
    private void logStatsIfConfigured(boolean onInit) {
        if (isLoggingEnabled(lmdbConfigurationWrite, onInit) || isLoggingEnabled(lmdbConfigurationReadOnly, onInit)) {
            logStats();
        }
    }

    private boolean isLoggingEnabled(CLMDBConfigurationReadOnly config, boolean onInit) {
        return config != null && (onInit ? config.logStatsOnInit : config.logStatsOnClose);
    }

    @Override
    public void close() {
        logStatsIfConfigured(false);
        lmdb_h160ToAmount.close();
        env.close();
    }
    
    @Override
    public boolean isClosed() {
        return env.isClosed();
    }

    @Override
    public Coin getAmount(ByteBuffer hash160) {
        try (Txn<ByteBuffer> txn = env.txnRead()) {
            ByteBuffer byteBuffer = lmdb_h160ToAmount.get(txn, hash160);
            return getCoinFromByteBuffer(byteBuffer);
        }
    }
    
    private Coin getCoinFromByteBuffer(ByteBuffer byteBuffer) {
        if (byteBuffer == null || byteBuffer.capacity() == 0) {
            return Coin.ZERO;
        }
        return Coin.valueOf(byteBuffer.getLong());
    }

    @Override
    public boolean containsAddress(ByteBuffer hash160) {
        if (lmdbConfigurationReadOnly.disableAddressLookup) {
            return false;
        }
        
        byte[] hash160AsByteArray = new byte[hash160.remaining()];
        hash160.get(hash160AsByteArray);
        hash160.rewind();
        
        // Use Bloom filter if available for fast pre-check
        if (addressBloomFilter != null) {
            boolean mightContain = addressBloomFilter.mightContain(hash160AsByteArray);
            if (!mightContain) {
                return false; // definitely not present
            }
            // Possibly in DB, proceed to verify
        }
        
        // Perform LMDB lookup (always happens if no Bloom filter is present)
        try (Txn<ByteBuffer> txn = env.txnRead()) {
            ByteBuffer byteBuffer = lmdb_h160ToAmount.get(txn, hash160);
            return byteBuffer != null;
        }
    }

    @Override
    public void writeAllAmountsToAddressFile(File file, CAddressFileOutputFormat addressFileOutputFormat, AtomicBoolean shouldRun) throws IOException {
        try (Txn<ByteBuffer> txn = env.txnRead()) {
            try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {
                try (FileWriter writer = new FileWriter(file)) {
                    for (final CursorIterable.KeyVal<ByteBuffer> kv : iterable) {
                        if (!shouldRun.get()) {
                            return;
                        }
                        ByteBuffer addressAsByteBuffer = kv.key();
                        if(logger.isTraceEnabled()) {
                            String hexFromByteBuffer = new ByteBufferUtility(false).getHexFromByteBuffer(addressAsByteBuffer);
                            logger.trace("Process address: " + hexFromByteBuffer);
                        }
                        LegacyAddress address = keyUtility.byteBufferToAddress(addressAsByteBuffer);
                        final String line;
                        switch(addressFileOutputFormat) {
                            case HexHash:
                                line = Hex.encodeHexString(address.getHash()) + System.lineSeparator();
                                break;
                            case FixedWidthBase58BitcoinAddress:
                                line = String.format("%-34s", address.toBase58()) + System.lineSeparator();
                                break;
                            case DynamicWidthBase58BitcoinAddressWithAmount:
                                ByteBuffer value = kv.val();
                                Coin coin = getCoinFromByteBuffer(value);
                                line = address.toBase58() + SeparatorFormat.COMMA.getSymbol() + coin.getValue() + System.lineSeparator();
                                break;
                            default:
                                throw new IllegalArgumentException("Unknown addressFileOutputFormat: " + addressFileOutputFormat);
                        }
                        writer.write(line);
                    }
                }
            }
        }
    }

    @Override
    public void putAllAmounts(Map<ByteBuffer, Coin> amounts) throws IOException {
        for (Map.Entry<ByteBuffer, Coin> entry : amounts.entrySet()) {
            ByteBuffer hash160 = entry.getKey();
            Coin coin = entry.getValue();
            putNewAmount(hash160, coin);
        }
    }

    @Override
    public void changeAmount(ByteBuffer hash160, Coin amountToChange) {
        Coin valueInDB = getAmount(hash160);
        Coin toWrite = valueInDB.add(amountToChange);
        putNewAmount(hash160, toWrite);
    }

    @Override
    public void putNewAmount(ByteBuffer hash160, Coin amount) {
        putNewAmountWithAutoIncrease(hash160, amount);
    }
    
    /**
     * If an {@link org.lmdbjava.Env.MapFullException} was thrown during a put. The map might be increased if configured.
     * The increase value needs to be high enough. Otherwise the next put fails nevertheless.
     */
    private void putNewAmountWithAutoIncrease(ByteBuffer hash160, Coin amount) {
        try {
            putNewAmountUnsafe(hash160, amount);
        } catch (org.lmdbjava.Env.MapFullException e) {
            if (lmdbConfigurationWrite.increaseMapAutomatically == true) {
                increaseDatabaseSize(new ByteConversion().mibToBytes(lmdbConfigurationWrite.increaseSizeInMiB));
                /**
                 * It is possible that the exception will be thrown again, in this case increaseSizeInMiB should be changed and it's a configuration issue.
                 * See {@link CLMDBConfigurationWrite#increaseSizeInMiB}.
                 */
                putNewAmountUnsafe(hash160, amount);
            } else {
                throw e;
            }
        }
    }
    
    private void putNewAmountUnsafe(ByteBuffer hash160, Coin amount) {
        try (Txn<ByteBuffer> txn = env.txnWrite()) {
            if (lmdbConfigurationWrite.deleteEmptyAddresses && amount.isZero()) {
                lmdb_h160ToAmount.delete(txn, hash160);
            } else {
                long amountAsLong = amount.longValue();
                if (lmdbConfigurationWrite.useStaticAmount) {
                    amountAsLong = lmdbConfigurationWrite.staticAmount;
                }
                lmdb_h160ToAmount.put(txn, hash160, persistenceUtils.longToByteBufferDirect(amountAsLong));
            }
            txn.commit();
        }
    }

    @Override
    public Coin getAllAmountsFromAddresses(List<ByteBuffer> hash160s) {
        Coin allAmounts = Coin.ZERO;
        for (ByteBuffer hash160 : hash160s) {
            allAmounts = allAmounts.add(getAmount(hash160));
        }
        return allAmounts;
    }

    @Override
    public long count() {
        long count = 0;
        try (Txn<ByteBuffer> txn = env.txnRead()) {
            try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {
                for (final CursorIterable.KeyVal<ByteBuffer> kv : iterable) {
                    count++;
                }
            }
        }
        return count;
    }

    @Override
    public long getDatabaseSize() {
        EnvInfo info = env.info();
        return info.mapSize;
    }

    @Override
    public void increaseDatabaseSize(long toIncrease) {
        increasedCounter++;
        increasedSum += toIncrease;
        long newSize = getDatabaseSize() + toIncrease;
        env.setMapSize(newSize);
    }

    @Override
    public long getIncreasedCounter() {
        return increasedCounter;
    }

    @Override
    public long getIncreasedSum() {
        return increasedSum;
    }
    
    @Override
    public void logStats() {
        logger.info("##### BEGIN: LMDB stats #####");
        logger.info("... this may take a lot of time ...");
        logger.info("DatabaseSize: " + new ByteConversion().bytesToMib(getDatabaseSize()) + " MiB");
        logger.info("IncreasedCounter: " + getIncreasedCounter());
        logger.info("IncreasedSum: " + new ByteConversion().bytesToMib(getIncreasedSum()) + " MiB");
        logger.info("Stat: " + env.stat());
        // Attention: slow!
        long count = count();
        logger.info("LMDB contains " + count + " unique entries.");
        logger.info("##### END: LMDB stats #####");
    }
}

1	// @formatter:off
2	/**
3	* Copyright 2020 Bernard Ladenthin bernard.ladenthin@gmail.com
4	*
5	* Licensed under the Apache License, Version 2.0 (the "License");
6	* you may not use this file except in compliance with the License.
7	* You may obtain a copy of the License at
8	*
9	* http://www.apache.org/licenses/LICENSE-2.0
10	*
11	* Unless required by applicable law or agreed to in writing, software
12	* distributed under the License is distributed on an "AS IS" BASIS,
13	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14	* See the License for the specific language governing permissions and
15	* limitations under the License.
16	*
17	*/
18	// @formatter:on
19	package net.ladenthin.bitcoinaddressfinder.persistence.lmdb;
20
21	import com.google.common.hash.BloomFilter;
22	import com.google.common.hash.Funnels;
23	import net.ladenthin.bitcoinaddressfinder.persistence.Persistence;
24	import net.ladenthin.bitcoinaddressfinder.persistence.PersistenceUtils;
25	import org.lmdbjava.CursorIterable;
26	import org.lmdbjava.Dbi;
27	import org.lmdbjava.Env;
28	import org.lmdbjava.EnvFlags;
29	import org.lmdbjava.KeyRange;
30	import org.lmdbjava.Txn;
31
32	import java.io.File;
33	import java.io.FileWriter;
34	import java.io.IOException;
35	import java.nio.ByteBuffer;
36	import java.util.List;
37	import java.util.Map;
38	import java.util.concurrent.atomic.AtomicBoolean;
39	import net.ladenthin.bitcoinaddressfinder.ByteBufferUtility;
40	import net.ladenthin.bitcoinaddressfinder.ByteConversion;
41	import net.ladenthin.bitcoinaddressfinder.KeyUtility;
42	import net.ladenthin.bitcoinaddressfinder.SeparatorFormat;
43	import net.ladenthin.bitcoinaddressfinder.configuration.CAddressFileOutputFormat;
44	import net.ladenthin.bitcoinaddressfinder.configuration.CLMDBConfigurationReadOnly;
45	import net.ladenthin.bitcoinaddressfinder.configuration.CLMDBConfigurationWrite;
46	import org.apache.commons.codec.binary.Hex;
47	import org.bitcoinj.base.Coin;
48	import org.bitcoinj.base.LegacyAddress;
49	import org.lmdbjava.BufferProxy;
50	import org.lmdbjava.ByteBufferProxy;
51
52	import static org.lmdbjava.DbiFlags.MDB_CREATE;
53	import static org.lmdbjava.Env.create;
54	import org.lmdbjava.EnvInfo;
55	import org.slf4j.Logger;
56	import org.slf4j.LoggerFactory;
57
58	public class LMDBPersistence implements Persistence {
59
60	private static final String DB_NAME_HASH160_TO_COINT = "hash160toCoin";
61	private static final int DB_COUNT = 1;
62
63	private final Logger logger = LoggerFactory.getLogger(LMDBPersistence.class);	1✔
64
65	private final PersistenceUtils persistenceUtils;
66	private final CLMDBConfigurationWrite lmdbConfigurationWrite;
67	private final CLMDBConfigurationReadOnly lmdbConfigurationReadOnly;
68	private final KeyUtility keyUtility;
69	private Env<ByteBuffer> env;
70	private Dbi<ByteBuffer> lmdb_h160ToAmount;
71	private long increasedCounter = 0;	1✔
72	private long increasedSum = 0;	1✔
73	private BloomFilter<byte[]> addressBloomFilter = null;	1✔
74
75
76	public LMDBPersistence(CLMDBConfigurationWrite lmdbConfigurationWrite, PersistenceUtils persistenceUtils) {	1✔
77	this.lmdbConfigurationReadOnly = null;	1✔
78	this.lmdbConfigurationWrite = lmdbConfigurationWrite;	1✔
79	this.persistenceUtils = persistenceUtils;	1✔
80	this.keyUtility = new KeyUtility(persistenceUtils.network, new ByteBufferUtility(true));	1✔
81	}	1✔
82
83	public LMDBPersistence(CLMDBConfigurationReadOnly lmdbConfigurationReadOnly, PersistenceUtils persistenceUtils) {	1✔
84	this.lmdbConfigurationReadOnly = lmdbConfigurationReadOnly;	1✔
85	lmdbConfigurationWrite = null;	1✔
86	this.persistenceUtils = persistenceUtils;	1✔
87	this.keyUtility = new KeyUtility(persistenceUtils.network, new ByteBufferUtility(true));	1✔
88	}	1✔
89
90	@Override
91	public void init() {
92	if (lmdbConfigurationWrite != null) {	1✔
93	initWritable();	1✔
94	} else if (lmdbConfigurationReadOnly != null) {	1✔
95	initReadOnly();	1✔
96	} else {
97	throw new IllegalArgumentException("Neither write nor read-only configuration provided.");	×
98	}
99
100
101	logStatsIfConfigured(true);	1✔
102	}	1✔
103
104	public void buildAddressBloomFilter() {
105	logger.info("##### BEGIN: buildAddressBloomFilter #####");	1✔
106	// Attention: slow!
107	long count = count();	1✔
108
109	BloomFilter<byte[]> filter = BloomFilter.create(Funnels.byteArrayFunnel(), count, lmdbConfigurationReadOnly.bloomFilterFpp);	1✔
110	long inserted = 0;	1✔
111
112	try (Txn<ByteBuffer> txn = env.txnRead()) {	1✔
113	try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {	1✔
114	for (CursorIterable.KeyVal<ByteBuffer> kv : iterable) {	1✔
115	ByteBuffer key = kv.key();	1✔
116	byte[] keyBytes = new byte[key.remaining()];	1✔
117	key.get(keyBytes);	1✔
118	key.rewind();	1✔
119	filter.put(keyBytes);	1✔
120	inserted++;	1✔
121	}	1✔
122	}
123	}
124
125	addressBloomFilter = filter;	1✔
126	logger.info("Inserted {} addresses into BloomFilter", inserted);	1✔
127	logger.info("##### END: buildAddressBloomFilter #####");	1✔
128	}	1✔
129
130	public void unloadBloomFilter() {
NEW 131	addressBloomFilter = null;	×
UNCOV 132	}	×
133
134	private void initReadOnly() {
135	BufferProxy<ByteBuffer> bufferProxy = getBufferProxyByUseProxyOptimal(lmdbConfigurationReadOnly.useProxyOptimal);	1✔
136	env = create(bufferProxy).setMaxDbs(DB_COUNT).open(new File(lmdbConfigurationReadOnly.lmdbDirectory), EnvFlags.MDB_RDONLY_ENV, EnvFlags.MDB_NOLOCK);	1✔
137	lmdb_h160ToAmount = env.openDbi(DB_NAME_HASH160_TO_COINT);	1✔
138
139	if (lmdbConfigurationReadOnly.useBloomFilter) {	1✔
140	buildAddressBloomFilter();	1✔
141	}
142	}	1✔
143
144	private void initWritable() {
145	// -Xmx10G -XX:MaxDirectMemorySize=5G
146	// We always need an Env. An Env owns a physical on-disk storage file. One
147	// Env can store many different databases (ie sorted maps).
148	File lmdbDirectory = new File(lmdbConfigurationWrite.lmdbDirectory);	1✔
149	lmdbDirectory.mkdirs();	1✔
150
151	BufferProxy<ByteBuffer> bufferProxy = getBufferProxyByUseProxyOptimal(lmdbConfigurationWrite.useProxyOptimal);	1✔
152
153	env = create(bufferProxy)	1✔
154	// LMDB also needs to know how large our DB might be. Over-estimating is OK.
155	.setMapSize(new ByteConversion().mibToBytes(lmdbConfigurationWrite.initialMapSizeInMiB))	1✔
156	// LMDB also needs to know how many DBs (Dbi) we want to store in this Env.
157	.setMaxDbs(DB_COUNT)	1✔
158	// Now let's open the Env. The same path can be concurrently opened and
159	// used in different processes, but do not open the same path twice in
160	// the same process at the same time.
161
162	//https://github.com/kentnl/CHI-Driver-LMDB
163	.open(lmdbDirectory, EnvFlags.MDB_NOSYNC, EnvFlags.MDB_NOMETASYNC, EnvFlags.MDB_WRITEMAP, EnvFlags.MDB_MAPASYNC);	1✔
164	// We need a Dbi for each DB. A Dbi roughly equates to a sorted map. The
165	// MDB_CREATE flag causes the DB to be created if it doesn't already exist.
166	lmdb_h160ToAmount = env.openDbi(DB_NAME_HASH160_TO_COINT, MDB_CREATE);	1✔
167	}	1✔
168
169	/**
170	* https://github.com/lmdbjava/lmdbjava/wiki/Buffers
171	*
172	* @param useProxyOptimal
173	* @return
174	*/
175	private BufferProxy<ByteBuffer> getBufferProxyByUseProxyOptimal(boolean useProxyOptimal) {
176	if (useProxyOptimal) {	1✔
177	return ByteBufferProxy.PROXY_OPTIMAL;	1✔
178	} else {
179	return ByteBufferProxy.PROXY_SAFE;	×
180	}
181	}
182
183	private void logStatsIfConfigured(boolean onInit) {
184	if (isLoggingEnabled(lmdbConfigurationWrite, onInit) \|\| isLoggingEnabled(lmdbConfigurationReadOnly, onInit)) {	1✔
185	logStats();	1✔
186	}
187	}	1✔
188
189	private boolean isLoggingEnabled(CLMDBConfigurationReadOnly config, boolean onInit) {
190	return config != null && (onInit ? config.logStatsOnInit : config.logStatsOnClose);	1✔
191	}
192
193	@Override
194	public void close() {
195	logStatsIfConfigured(false);	1✔
196	lmdb_h160ToAmount.close();	1✔
197	env.close();	1✔
198	}	1✔
199
200	@Override
201	public boolean isClosed() {
202	return env.isClosed();	1✔
203	}
204
205	@Override
206	public Coin getAmount(ByteBuffer hash160) {
207	try (Txn<ByteBuffer> txn = env.txnRead()) {	1✔
208	ByteBuffer byteBuffer = lmdb_h160ToAmount.get(txn, hash160);	1✔
209	return getCoinFromByteBuffer(byteBuffer);	1✔
210	}
211	}
212
213	private Coin getCoinFromByteBuffer(ByteBuffer byteBuffer) {
214	if (byteBuffer == null \|\| byteBuffer.capacity() == 0) {	1✔
215	return Coin.ZERO;	1✔
216	}
217	return Coin.valueOf(byteBuffer.getLong());	1✔
218	}
219
220	@Override
221	public boolean containsAddress(ByteBuffer hash160) {
222	if (lmdbConfigurationReadOnly.disableAddressLookup) {	1✔
UNCOV 223	return false;	×
224	}
225
226	byte[] hash160AsByteArray = new byte[hash160.remaining()];	1✔
227	hash160.get(hash160AsByteArray);	1✔
228	hash160.rewind();	1✔
229
230	// Use Bloom filter if available for fast pre-check
231	if (addressBloomFilter != null) {	1✔
232	boolean mightContain = addressBloomFilter.mightContain(hash160AsByteArray);	1✔
233	if (!mightContain) {	1✔
234	return false; // definitely not present	1✔
235	}
236	// Possibly in DB, proceed to verify
237	}
238
239	// Perform LMDB lookup (always happens if no Bloom filter is present)
240	try (Txn<ByteBuffer> txn = env.txnRead()) {	1✔
241	ByteBuffer byteBuffer = lmdb_h160ToAmount.get(txn, hash160);	1✔
242	return byteBuffer != null;	1✔
243	}
244	}
245
246	@Override
247	public void writeAllAmountsToAddressFile(File file, CAddressFileOutputFormat addressFileOutputFormat, AtomicBoolean shouldRun) throws IOException {
248	try (Txn<ByteBuffer> txn = env.txnRead()) {	1✔
249	try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {	1✔
250	try (FileWriter writer = new FileWriter(file)) {	1✔
251	for (final CursorIterable.KeyVal<ByteBuffer> kv : iterable) {	1✔
252	if (!shouldRun.get()) {	1✔
253	return;	×
254	}
255	ByteBuffer addressAsByteBuffer = kv.key();	1✔
256	if(logger.isTraceEnabled()) {	1✔
257	String hexFromByteBuffer = new ByteBufferUtility(false).getHexFromByteBuffer(addressAsByteBuffer);	×
258	logger.trace("Process address: " + hexFromByteBuffer);	×
259	}
260	LegacyAddress address = keyUtility.byteBufferToAddress(addressAsByteBuffer);	1✔
261	final String line;
262	switch(addressFileOutputFormat) {	1✔
263	case HexHash:
264	line = Hex.encodeHexString(address.getHash()) + System.lineSeparator();	1✔
265	break;	1✔
266	case FixedWidthBase58BitcoinAddress:
267	line = String.format("%-34s", address.toBase58()) + System.lineSeparator();	1✔
268	break;	1✔
269	case DynamicWidthBase58BitcoinAddressWithAmount:
270	ByteBuffer value = kv.val();	1✔
271	Coin coin = getCoinFromByteBuffer(value);	1✔
272	line = address.toBase58() + SeparatorFormat.COMMA.getSymbol() + coin.getValue() + System.lineSeparator();	1✔
273	break;	1✔
274	default:
275	throw new IllegalArgumentException("Unknown addressFileOutputFormat: " + addressFileOutputFormat);	×
276	}
277	writer.write(line);	1✔
278	}	1✔
279	}	×
280	}	×
281	}	×
282	}	1✔
283
284	@Override
285	public void putAllAmounts(Map<ByteBuffer, Coin> amounts) throws IOException {
286	for (Map.Entry<ByteBuffer, Coin> entry : amounts.entrySet()) {	×
287	ByteBuffer hash160 = entry.getKey();	×
288	Coin coin = entry.getValue();	×
289	putNewAmount(hash160, coin);	×
290	}	×
291	}	×
292
293	@Override
294	public void changeAmount(ByteBuffer hash160, Coin amountToChange) {
295	Coin valueInDB = getAmount(hash160);	×
296	Coin toWrite = valueInDB.add(amountToChange);	×
297	putNewAmount(hash160, toWrite);	×
298	}	×
299
300	@Override
301	public void putNewAmount(ByteBuffer hash160, Coin amount) {
302	putNewAmountWithAutoIncrease(hash160, amount);	1✔
303	}	1✔
304
305	/**
306	* If an {@link org.lmdbjava.Env.MapFullException} was thrown during a put. The map might be increased if configured.
307	* The increase value needs to be high enough. Otherwise the next put fails nevertheless.
308	*/
309	private void putNewAmountWithAutoIncrease(ByteBuffer hash160, Coin amount) {
310	try {
311	putNewAmountUnsafe(hash160, amount);	1✔
312	} catch (org.lmdbjava.Env.MapFullException e) {	1✔
313	if (lmdbConfigurationWrite.increaseMapAutomatically == true) {	1✔
314	increaseDatabaseSize(new ByteConversion().mibToBytes(lmdbConfigurationWrite.increaseSizeInMiB));	1✔
315	/**
316	* It is possible that the exception will be thrown again, in this case increaseSizeInMiB should be changed and it's a configuration issue.
317	* See {@link CLMDBConfigurationWrite#increaseSizeInMiB}.
318	*/
319	putNewAmountUnsafe(hash160, amount);	1✔
320	} else {
321	throw e;	1✔
322	}
323	}	1✔
324	}	1✔
325
326	private void putNewAmountUnsafe(ByteBuffer hash160, Coin amount) {
327	try (Txn<ByteBuffer> txn = env.txnWrite()) {	1✔
328	if (lmdbConfigurationWrite.deleteEmptyAddresses && amount.isZero()) {	1✔
329	lmdb_h160ToAmount.delete(txn, hash160);	×
330	} else {
331	long amountAsLong = amount.longValue();	1✔
332	if (lmdbConfigurationWrite.useStaticAmount) {	1✔
333	amountAsLong = lmdbConfigurationWrite.staticAmount;	1✔
334	}
335	lmdb_h160ToAmount.put(txn, hash160, persistenceUtils.longToByteBufferDirect(amountAsLong));	1✔
336	}
337	txn.commit();	1✔
338	}
339	}	1✔
340
341	@Override
342	public Coin getAllAmountsFromAddresses(List<ByteBuffer> hash160s) {
343	Coin allAmounts = Coin.ZERO;	×
344	for (ByteBuffer hash160 : hash160s) {	×
345	allAmounts = allAmounts.add(getAmount(hash160));	×
346	}	×
347	return allAmounts;	×
348	}
349
350	@Override
351	public long count() {
352	long count = 0;	1✔
353	try (Txn<ByteBuffer> txn = env.txnRead()) {	1✔
354	try (CursorIterable<ByteBuffer> iterable = lmdb_h160ToAmount.iterate(txn, KeyRange.all())) {	1✔
355	for (final CursorIterable.KeyVal<ByteBuffer> kv : iterable) {	1✔
356	count++;	1✔
357	}	1✔
358	}
359	}
360	return count;	1✔
361	}
362
363	@Override
364	public long getDatabaseSize() {
365	EnvInfo info = env.info();	1✔
366	return info.mapSize;	1✔
367	}
368
369	@Override
370	public void increaseDatabaseSize(long toIncrease) {
371	increasedCounter++;	1✔
372	increasedSum += toIncrease;	1✔
373	long newSize = getDatabaseSize() + toIncrease;	1✔
374	env.setMapSize(newSize);	1✔
375	}	1✔
376
377	@Override
378	public long getIncreasedCounter() {
379	return increasedCounter;	1✔
380	}
381
382	@Override
383	public long getIncreasedSum() {
384	return increasedSum;	1✔
385	}
386
387	@Override
388	public void logStats() {
389	logger.info("##### BEGIN: LMDB stats #####");	1✔
390	logger.info("... this may take a lot of time ...");	1✔
391	logger.info("DatabaseSize: " + new ByteConversion().bytesToMib(getDatabaseSize()) + " MiB");	1✔
392	logger.info("IncreasedCounter: " + getIncreasedCounter());	1✔
393	logger.info("IncreasedSum: " + new ByteConversion().bytesToMib(getIncreasedSum()) + " MiB");	1✔
394	logger.info("Stat: " + env.stat());	1✔
395	// Attention: slow!
396	long count = count();	1✔
397	logger.info("LMDB contains " + count + " unique entries.");	1✔
398	logger.info("##### END: LMDB stats #####");	1✔
399	}	1✔
400	}

bernardladenthin / BitcoinAddressFinder / #344

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