1125 lines
34 KiB
Java
1125 lines
34 KiB
Java
package it.cavallium.dbengine.database;
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import static org.apache.commons.lang3.ArrayUtils.EMPTY_BYTE_ARRAY;
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import com.google.common.primitives.Ints;
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import com.google.common.primitives.Longs;
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import io.net5.buffer.api.Buffer;
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import io.net5.buffer.api.BufferAllocator;
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import io.net5.buffer.api.CompositeBuffer;
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import io.net5.buffer.api.Resource;
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import io.net5.buffer.api.Send;
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import io.net5.util.IllegalReferenceCountException;
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import io.net5.util.internal.PlatformDependent;
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import it.cavallium.dbengine.database.collections.DatabaseStage;
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import it.cavallium.dbengine.database.disk.MemorySegmentUtils;
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import it.cavallium.dbengine.database.serialization.SerializationException;
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import it.cavallium.dbengine.database.serialization.SerializationFunction;
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import it.cavallium.dbengine.lucene.RandomSortField;
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import java.nio.ByteBuffer;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import java.util.Objects;
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import java.util.Optional;
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import java.util.concurrent.Callable;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.function.Function;
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import java.util.function.ToIntFunction;
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import org.apache.lucene.document.Document;
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import org.apache.lucene.document.Field;
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import org.apache.lucene.document.FloatPoint;
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import org.apache.lucene.document.IntPoint;
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import org.apache.lucene.document.LongPoint;
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import org.apache.lucene.document.NumericDocValuesField;
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import org.apache.lucene.document.SortedNumericDocValuesField;
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import org.apache.lucene.document.StoredField;
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import org.apache.lucene.document.StringField;
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import org.apache.lucene.document.TextField;
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import org.apache.lucene.index.Term;
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import org.apache.lucene.search.ScoreDoc;
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import org.apache.lucene.search.ScoreMode;
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import org.apache.lucene.search.Sort;
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import org.apache.lucene.search.SortField;
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import org.apache.lucene.search.SortedNumericSortField;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.rocksdb.RocksDB;
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import org.warp.commonutils.log.Logger;
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import org.warp.commonutils.log.LoggerFactory;
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import org.slf4j.Marker;
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import org.slf4j.MarkerFactory;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.core.scheduler.Schedulers;
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import reactor.util.function.Tuple2;
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import reactor.util.function.Tuple3;
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@SuppressWarnings("unused")
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public class LLUtils {
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private static final Logger logger = LoggerFactory.getLogger(LLUtils.class);
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public static final Marker MARKER_ROCKSDB = MarkerFactory.getMarker("ROCKSDB");
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public static final Marker MARKER_LUCENE = MarkerFactory.getMarker("LUCENE");
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private static final ByteBuffer EMPTY_BYTE_BUFFER = ByteBuffer.allocateDirect(0);
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private static final byte[] RESPONSE_TRUE = new byte[]{1};
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private static final byte[] RESPONSE_FALSE = new byte[]{0};
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private static final byte[] RESPONSE_TRUE_BUF = new byte[]{1};
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private static final byte[] RESPONSE_FALSE_BUF = new byte[]{0};
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public static final byte[][] LEXICONOGRAPHIC_ITERATION_SEEKS = new byte[256][1];
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static {
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for (int i1 = 0; i1 < 256; i1++) {
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var b = LEXICONOGRAPHIC_ITERATION_SEEKS[i1];
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b[0] = (byte) i1;
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}
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}
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public static boolean responseToBoolean(byte[] response) {
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return response[0] == 1;
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}
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public static boolean responseToBoolean(Send<Buffer> responseToReceive) {
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try (var response = responseToReceive.receive()) {
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assert response.readableBytes() == 1;
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return response.getByte(response.readerOffset()) == 1;
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}
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}
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public static byte[] booleanToResponse(boolean bool) {
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return bool ? RESPONSE_TRUE : RESPONSE_FALSE;
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}
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public static Send<Buffer> booleanToResponseByteBuffer(BufferAllocator alloc, boolean bool) {
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return alloc.allocate(1).writeByte(bool ? (byte) 1 : 0).send();
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}
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@Nullable
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public static Sort toSort(@Nullable LLSort sort) {
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if (sort == null) {
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return null;
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}
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if (sort.getType() == LLSortType.LONG) {
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return new Sort(new SortedNumericSortField(sort.getFieldName(), SortField.Type.LONG, sort.isReverse()));
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} else if (sort.getType() == LLSortType.RANDOM) {
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return new Sort(new RandomSortField());
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} else if (sort.getType() == LLSortType.SCORE) {
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return new Sort(SortField.FIELD_SCORE);
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} else if (sort.getType() == LLSortType.DOC) {
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return new Sort(SortField.FIELD_DOC);
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}
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return null;
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}
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public static ScoreMode toScoreMode(LLScoreMode scoreMode) {
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return switch (scoreMode) {
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case COMPLETE -> ScoreMode.COMPLETE;
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case TOP_SCORES -> ScoreMode.TOP_SCORES;
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case COMPLETE_NO_SCORES -> ScoreMode.COMPLETE_NO_SCORES;
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case NO_SCORES -> ScoreMode.TOP_DOCS;
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};
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}
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public static Term toTerm(LLTerm term) {
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return new Term(term.getKey(), term.getValue());
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}
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public static Document toDocument(LLUpdateDocument document) {
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return toDocument(document.items());
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}
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public static Document toDocument(LLItem[] document) {
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Document d = new Document();
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for (LLItem item : document) {
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if (item != null) {
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d.add(LLUtils.toField(item));
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}
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}
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return d;
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}
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public static Field[] toFields(LLItem... fields) {
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Field[] d = new Field[fields.length];
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for (int i = 0; i < fields.length; i++) {
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d[i] = LLUtils.toField(fields[i]);
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}
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return d;
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}
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public static Collection<Document> toDocuments(Collection<LLUpdateDocument> document) {
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List<Document> d = new ArrayList<>(document.size());
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for (LLUpdateDocument doc : document) {
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d.add(LLUtils.toDocument(doc));
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}
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return d;
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}
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public static Collection<Document> toDocumentsFromEntries(Collection<Entry<LLTerm, LLUpdateDocument>> documentsList) {
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ArrayList<Document> results = new ArrayList<>(documentsList.size());
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for (Entry<LLTerm, LLUpdateDocument> entry : documentsList) {
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results.add(LLUtils.toDocument(entry.getValue()));
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}
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return results;
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}
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public static Iterable<Term> toTerms(Iterable<LLTerm> terms) {
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List<Term> d = new ArrayList<>();
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for (LLTerm term : terms) {
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d.add(LLUtils.toTerm(term));
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}
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return d;
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}
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private static Field toField(LLItem item) {
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return switch (item.getType()) {
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case IntPoint -> new IntPoint(item.getName(), Ints.fromByteArray(item.getData()));
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case LongPoint -> new LongPoint(item.getName(), Longs.fromByteArray(item.getData()));
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case LongStoredField -> new StoredField(item.getName(), Longs.fromByteArray(item.getData()));
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case FloatPoint -> new FloatPoint(item.getName(), ByteBuffer.wrap(item.getData()).getFloat());
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case TextField -> new TextField(item.getName(), item.stringValue(), Field.Store.NO);
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case TextFieldStored -> new TextField(item.getName(), item.stringValue(), Field.Store.YES);
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case SortedNumericDocValuesField ->
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new SortedNumericDocValuesField(item.getName(), Longs.fromByteArray(item.getData()));
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case NumericDocValuesField -> new NumericDocValuesField(item.getName(), Longs.fromByteArray(item.getData()));
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case StringField -> new StringField(item.getName(), item.stringValue(), Field.Store.NO);
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case StringFieldStored -> new StringField(item.getName(), item.stringValue(), Field.Store.YES);
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};
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}
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public static it.cavallium.dbengine.database.LLKeyScore toKeyScore(LLKeyScore hit) {
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return new it.cavallium.dbengine.database.LLKeyScore(hit.docId(), hit.score(), hit.key());
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}
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public static String toStringSafe(@Nullable Buffer key) {
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try {
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if (key == null || key.isAccessible()) {
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return toString(key);
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} else {
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return "(released)";
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}
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} catch (IllegalReferenceCountException ex) {
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return "(released)";
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}
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}
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public static String toStringSafe(byte @Nullable[] key) {
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try {
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if (key == null) {
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return toString(key);
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} else {
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return "(released)";
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}
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} catch (IllegalReferenceCountException ex) {
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return "(released)";
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}
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}
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public static String toStringSafe(@Nullable LLRange range) {
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try {
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if (range == null || range.isAccessible()) {
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return toString(range);
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} else {
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return "(released)";
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}
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} catch (IllegalReferenceCountException ex) {
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return "(released)";
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}
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}
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public static String toString(@Nullable LLRange range) {
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if (range == null) {
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return "null";
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} else if (range.isAll()) {
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return "ξ";
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} else if (range.hasMin() && range.hasMax()) {
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return "[" + toStringSafe(range.getMinUnsafe()) + "," + toStringSafe(range.getMaxUnsafe()) + ")";
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} else if (range.hasMin()) {
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return "[" + toStringSafe(range.getMinUnsafe()) + ",*)";
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} else if (range.hasMax()) {
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return "[*," + toStringSafe(range.getMaxUnsafe()) + ")";
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} else {
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return "∅";
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}
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}
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public static String toString(@Nullable Buffer key) {
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if (key == null) {
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return "null";
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} else {
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int startIndex = key.readerOffset();
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int iMax = key.readableBytes() - 1;
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int iLimit = 128;
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if (iMax <= -1) {
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return "[]";
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} else {
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StringBuilder arraySB = new StringBuilder();
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StringBuilder asciiSB = new StringBuilder();
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boolean isAscii = true;
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arraySB.append('[');
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int i = 0;
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while (true) {
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var byteVal = key.getUnsignedByte(startIndex + i);
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arraySB.append(byteVal);
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if (isAscii) {
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if (byteVal >= 32 && byteVal < 127) {
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asciiSB.append((char) byteVal);
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} else if (byteVal == 0) {
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asciiSB.append('␀');
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} else {
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isAscii = false;
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asciiSB = null;
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}
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}
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if (i == iLimit) {
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arraySB.append("…");
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}
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if (i == iMax || i == iLimit) {
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if (isAscii) {
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return asciiSB.insert(0, "\"").append("\"").toString();
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} else {
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return arraySB.append(']').toString();
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}
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}
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arraySB.append(", ");
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++i;
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}
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}
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}
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}
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public static String toString(byte @Nullable[] key) {
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if (key == null) {
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return "null";
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} else {
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int startIndex = 0;
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int iMax = key.length - 1;
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int iLimit = 128;
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if (iMax <= -1) {
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return "[]";
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} else {
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StringBuilder arraySB = new StringBuilder();
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StringBuilder asciiSB = new StringBuilder();
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boolean isAscii = true;
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arraySB.append('[');
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int i = 0;
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while (true) {
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var byteVal = (int) key[startIndex + i];
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arraySB.append(byteVal);
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if (isAscii) {
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if (byteVal >= 32 && byteVal < 127) {
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asciiSB.append((char) byteVal);
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} else if (byteVal == 0) {
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asciiSB.append('␀');
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} else {
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isAscii = false;
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asciiSB = null;
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}
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}
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if (i == iLimit) {
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arraySB.append("…");
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}
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if (i == iMax || i == iLimit) {
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if (isAscii) {
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return asciiSB.insert(0, "\"").append("\"").toString();
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} else {
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return arraySB.append(']').toString();
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}
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}
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arraySB.append(", ");
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++i;
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}
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}
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}
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}
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public static boolean equals(Buffer a, Buffer b) {
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if (a == null && b == null) {
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return true;
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} else if (a != null && b != null) {
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var aCur = a.openCursor();
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var bCur = b.openCursor();
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if (aCur.bytesLeft() != bCur.bytesLeft()) {
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return false;
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}
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while (aCur.readByte() && bCur.readByte()) {
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if (aCur.getByte() != bCur.getByte()) {
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return false;
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}
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}
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return true;
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} else {
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return false;
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}
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}
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/**
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* Returns {@code true} if and only if the two specified buffers are identical to each other for {@code length} bytes
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* starting at {@code aStartIndex} index for the {@code a} buffer and {@code bStartIndex} index for the {@code b}
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* buffer. A more compact way to express this is:
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* <p>
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* {@code a[aStartIndex : aStartIndex + length] == b[bStartIndex : bStartIndex + length]}
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*/
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public static boolean equals(Buffer a, int aStartIndex, Buffer b, int bStartIndex, int length) {
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var aCur = a.openCursor(aStartIndex, length);
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var bCur = b.openCursor(bStartIndex, length);
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if (aCur.bytesLeft() != bCur.bytesLeft()) {
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return false;
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}
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while (aCur.readByte() && bCur.readByte()) {
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if (aCur.getByte() != bCur.getByte()) {
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return false;
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}
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}
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return true;
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}
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public static byte[] toArray(@Nullable Buffer key) {
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if (key == null) {
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return EMPTY_BYTE_ARRAY;
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}
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byte[] array = new byte[key.readableBytes()];
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key.copyInto(key.readerOffset(), array, 0, key.readableBytes());
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return array;
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}
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public static List<byte[]> toArray(List<Buffer> input) {
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List<byte[]> result = new ArrayList<>(input.size());
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for (Buffer byteBuf : input) {
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result.add(toArray(byteBuf));
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}
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return result;
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}
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public static int hashCode(Buffer buf) {
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if (buf == null) {
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return 0;
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}
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int result = 1;
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var cur = buf.openCursor();
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while (cur.readByte()) {
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var element = cur.getByte();
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result = 31 * result + element;
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}
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return result;
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}
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/**
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* @return null if size is equal to RocksDB.NOT_FOUND
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*/
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@SuppressWarnings("ConstantConditions")
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@Nullable
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public static Buffer readNullableDirectNioBuffer(BufferAllocator alloc, ToIntFunction<ByteBuffer> reader) {
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ByteBuffer directBuffer;
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Buffer buffer;
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{
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var direct = LLUtils.newDirect(alloc, 4096);
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directBuffer = direct.byteBuffer();
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buffer = direct.buffer().receive();
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}
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try {
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int size;
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do {
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directBuffer.limit(directBuffer.capacity());
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assert directBuffer.isDirect();
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size = reader.applyAsInt(directBuffer);
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if (size != RocksDB.NOT_FOUND) {
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if (size == directBuffer.limit()) {
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buffer.readerOffset(0).writerOffset(size);
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return buffer;
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} else {
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assert size > directBuffer.limit();
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assert directBuffer.limit() > 0;
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// Free the buffer
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if (directBuffer != null) {
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// todo: check if free is needed
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PlatformDependent.freeDirectBuffer(directBuffer);
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directBuffer = null;
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}
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directBuffer = LLUtils.obtainDirect(buffer, true);
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buffer.ensureWritable(size);
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}
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}
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} while (size != RocksDB.NOT_FOUND);
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// Return null if size is equal to RocksDB.NOT_FOUND
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return null;
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} finally {
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// Free the buffer
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if (directBuffer != null) {
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// todo: check if free is needed
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PlatformDependent.freeDirectBuffer(directBuffer);
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directBuffer = null;
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}
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}
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}
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public static void ensureBlocking() {
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if (Schedulers.isInNonBlockingThread()) {
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throw new UnsupportedOperationException("Called collect in a nonblocking thread");
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}
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}
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// todo: remove this ugly method
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/**
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* cleanup resource
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* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
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*/
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public static <U, T extends Resource<T>> Mono<U> usingSend(Mono<Send<T>> resourceSupplier,
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Function<Send<T>, Mono<U>> resourceClosure,
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boolean cleanupOnSuccess) {
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return Mono.usingWhen(resourceSupplier, resourceClosure, r -> {
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if (cleanupOnSuccess) {
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return Mono.fromRunnable(() -> r.close());
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} else {
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return Mono.empty();
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}
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}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close()))
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.doOnDiscard(Send.class, send -> send.close())
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.doOnDiscard(Resource.class, Resource::close);
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}
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|
|
// todo: remove this ugly method
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/**
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* cleanup resource
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* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
|
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*/
|
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public static <U, T extends Resource<? extends T>, V extends T> Mono<U> usingResource(Mono<V> resourceSupplier,
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Function<V, Mono<U>> resourceClosure,
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boolean cleanupOnSuccess) {
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return Mono.usingWhen(resourceSupplier, resourceClosure, r -> {
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if (cleanupOnSuccess) {
|
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return Mono.fromRunnable(() -> r.close());
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} else {
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return Mono.empty();
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}
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}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close()))
|
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.doOnDiscard(Resource.class, resource -> resource.close())
|
|
.doOnDiscard(Send.class, send -> send.close());
|
|
}
|
|
|
|
// todo: remove this ugly method
|
|
/**
|
|
* cleanup resource
|
|
* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
|
|
*/
|
|
public static <U, T extends Resource<T>, V extends T> Flux<U> usingResources(Mono<V> resourceSupplier,
|
|
Function<V, Flux<U>> resourceClosure,
|
|
boolean cleanupOnSuccess) {
|
|
return Flux.usingWhen(resourceSupplier, resourceClosure, r -> {
|
|
if (cleanupOnSuccess) {
|
|
return Mono.fromRunnable(() -> r.close());
|
|
} else {
|
|
return Mono.empty();
|
|
}
|
|
}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close()))
|
|
.doOnDiscard(Resource.class, resource -> resource.close())
|
|
.doOnDiscard(Send.class, send -> send.close());
|
|
}
|
|
|
|
// todo: remove this ugly method
|
|
/**
|
|
* cleanup resource
|
|
* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
|
|
*/
|
|
public static <U, T extends Resource<T>, V extends T> Flux<U> usingEachResource(Flux<V> resourceSupplier,
|
|
Function<V, Mono<U>> resourceClosure,
|
|
boolean cleanupOnSuccess) {
|
|
return resourceSupplier
|
|
.concatMap(resource -> Mono.usingWhen(Mono.just(resource), resourceClosure, r -> {
|
|
if (cleanupOnSuccess) {
|
|
return Mono.fromRunnable(() -> r.close());
|
|
} else {
|
|
return Mono.empty();
|
|
}
|
|
}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close())))
|
|
.doOnDiscard(Resource.class, resource -> resource.close())
|
|
.doOnDiscard(Send.class, send -> send.close());
|
|
}
|
|
|
|
// todo: remove this ugly method
|
|
/**
|
|
* cleanup resource
|
|
* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
|
|
*/
|
|
public static <U, T extends Resource<T>> Mono<U> usingSendResource(Mono<Send<T>> resourceSupplier,
|
|
Function<T, Mono<U>> resourceClosure,
|
|
boolean cleanupOnSuccess) {
|
|
return Mono.usingWhen(resourceSupplier.map(Send::receive), resourceClosure, r -> {
|
|
if (cleanupOnSuccess) {
|
|
return Mono.fromRunnable(() -> r.close());
|
|
} else {
|
|
return Mono.empty();
|
|
}
|
|
}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close()))
|
|
.doOnDiscard(Resource.class, resource -> resource.close())
|
|
.doOnDiscard(Send.class, send -> send.close());
|
|
}
|
|
|
|
// todo: remove this ugly method
|
|
/**
|
|
* cleanup resource
|
|
* @param cleanupOnSuccess if true the resource will be cleaned up if the function is successful
|
|
*/
|
|
public static <U, T extends Resource<T>> Flux<U> usingSendResources(Mono<Send<T>> resourceSupplier,
|
|
Function<T, Flux<U>> resourceClosure,
|
|
boolean cleanupOnSuccess) {
|
|
return Flux.usingWhen(resourceSupplier.map(Send::receive), resourceClosure, r -> {
|
|
if (cleanupOnSuccess) {
|
|
return Mono.fromRunnable(() -> r.close());
|
|
} else {
|
|
return Mono.empty();
|
|
}
|
|
}, (r, ex) -> Mono.fromRunnable(() -> r.close()), r -> Mono.fromRunnable(() -> r.close()))
|
|
.doOnDiscard(Resource.class, resource -> resource.close())
|
|
.doOnDiscard(Send.class, send -> send.close());
|
|
}
|
|
|
|
public static boolean isSet(ScoreDoc[] scoreDocs) {
|
|
for (ScoreDoc scoreDoc : scoreDocs) {
|
|
if (scoreDoc == null) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public static Send<Buffer> empty(BufferAllocator allocator) {
|
|
try {
|
|
return allocator.allocate(0).send();
|
|
} catch (Exception ex) {
|
|
try (var empty = CompositeBuffer.compose(allocator)) {
|
|
assert empty.readableBytes() == 0;
|
|
assert empty.capacity() == 0;
|
|
return empty.send();
|
|
}
|
|
}
|
|
}
|
|
|
|
public static Send<Buffer> copy(BufferAllocator allocator, Buffer buf) {
|
|
if (CompositeBuffer.isComposite(buf) && buf.capacity() == 0) {
|
|
return empty(allocator);
|
|
} else {
|
|
return buf.copy().send();
|
|
}
|
|
}
|
|
|
|
public static record DirectBuffer(@NotNull Send<Buffer> buffer, @NotNull ByteBuffer byteBuffer) {}
|
|
|
|
@NotNull
|
|
public static DirectBuffer newDirect(BufferAllocator allocator, int size) {
|
|
try (var buf = allocator.allocate(size)) {
|
|
var direct = obtainDirect(buf, true);
|
|
return new DirectBuffer(buf.send(), direct);
|
|
}
|
|
}
|
|
|
|
@NotNull
|
|
public static DirectBuffer convertToReadableDirect(BufferAllocator allocator, Send<Buffer> content) {
|
|
try (var buf = content.receive()) {
|
|
DirectBuffer result;
|
|
if (buf.countComponents() == 1) {
|
|
var direct = obtainDirect(buf, false);
|
|
result = new DirectBuffer(buf.send(), direct);
|
|
} else {
|
|
var direct = newDirect(allocator, buf.readableBytes());
|
|
try (var buf2 = direct.buffer().receive()) {
|
|
buf.copyInto(buf.readerOffset(), buf2, buf2.writerOffset(), buf.readableBytes());
|
|
buf2.writerOffset(buf2.writerOffset() + buf.readableBytes());
|
|
assert buf2.readableBytes() == buf.readableBytes();
|
|
result = new DirectBuffer(buf2.send(), direct.byteBuffer());
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
}
|
|
|
|
@NotNull
|
|
public static ByteBuffer obtainDirect(Buffer buffer, boolean writable) {
|
|
if (!PlatformDependent.hasUnsafe()) {
|
|
throw new UnsupportedOperationException("Please enable unsafe support or disable netty direct buffers",
|
|
PlatformDependent.getUnsafeUnavailabilityCause()
|
|
);
|
|
}
|
|
if (!MemorySegmentUtils.isSupported()) {
|
|
throw new UnsupportedOperationException("Foreign Memory Access API support is disabled."
|
|
+ " Please set \"" + MemorySegmentUtils.getSuggestedArgs() + "\"",
|
|
MemorySegmentUtils.getUnsupportedCause()
|
|
);
|
|
}
|
|
assert buffer.isAccessible();
|
|
if (buffer.readOnly()) {
|
|
throw new IllegalStateException("Buffer is read only");
|
|
}
|
|
buffer.compact();
|
|
assert buffer.readerOffset() == 0;
|
|
AtomicLong nativeAddress = new AtomicLong(0);
|
|
if (buffer.countComponents() == 1) {
|
|
if (writable) {
|
|
if (buffer.countWritableComponents() == 1) {
|
|
buffer.forEachWritable(0, (i, c) -> {
|
|
assert c.writableNativeAddress() != 0;
|
|
nativeAddress.setPlain(c.writableNativeAddress());
|
|
return false;
|
|
});
|
|
}
|
|
} else {
|
|
var readableComponents = buffer.countReadableComponents();
|
|
if (readableComponents == 1) {
|
|
buffer.forEachReadable(0, (i, c) -> {
|
|
assert c.readableNativeAddress() != 0;
|
|
nativeAddress.setPlain(c.readableNativeAddress());
|
|
return false;
|
|
});
|
|
}
|
|
}
|
|
}
|
|
if (nativeAddress.getPlain() == 0) {
|
|
if (buffer.capacity() == 0) {
|
|
return EMPTY_BYTE_BUFFER;
|
|
}
|
|
if (!buffer.isAccessible()) {
|
|
throw new IllegalStateException("Buffer is not accessible");
|
|
}
|
|
throw new IllegalStateException("Buffer is not direct");
|
|
}
|
|
return MemorySegmentUtils.directBuffer(nativeAddress.getPlain(), writable ? buffer.capacity() : buffer.writerOffset());
|
|
}
|
|
|
|
public static Buffer fromByteArray(BufferAllocator alloc, byte[] array) {
|
|
Buffer result = alloc.allocate(array.length);
|
|
result.writeBytes(array);
|
|
return result;
|
|
}
|
|
|
|
@NotNull
|
|
public static Buffer readDirectNioBuffer(BufferAllocator alloc, ToIntFunction<ByteBuffer> reader) {
|
|
var nullable = readNullableDirectNioBuffer(alloc, reader);
|
|
if (nullable == null) {
|
|
throw new IllegalStateException("A non-nullable buffer read operation tried to return a \"not found\" element");
|
|
}
|
|
return nullable;
|
|
}
|
|
|
|
public static Buffer compositeBuffer(BufferAllocator alloc, Send<Buffer> buffer) {
|
|
return buffer.receive();
|
|
}
|
|
|
|
@NotNull
|
|
public static Buffer compositeBuffer(BufferAllocator alloc,
|
|
@NotNull Send<Buffer> buffer1,
|
|
@NotNull Send<Buffer> buffer2) {
|
|
var b1 = buffer1.receive();
|
|
try (var b2 = buffer2.receive()) {
|
|
if (b1.writerOffset() < b1.capacity() || b2.writerOffset() < b2.capacity()) {
|
|
b1.ensureWritable(b2.readableBytes(), b2.readableBytes(), true);
|
|
b2.copyInto(b2.readerOffset(), b1, b1.writerOffset(), b2.readableBytes());
|
|
b1.writerOffset(b1.writerOffset() + b2.readableBytes());
|
|
return b1;
|
|
} else {
|
|
return CompositeBuffer.compose(alloc, b1.send(), b2.send());
|
|
}
|
|
}
|
|
}
|
|
|
|
@NotNull
|
|
public static Buffer compositeBuffer(BufferAllocator alloc,
|
|
@NotNull Send<Buffer> buffer1,
|
|
@NotNull Send<Buffer> buffer2,
|
|
@NotNull Send<Buffer> buffer3) {
|
|
var b1 = buffer1.receive();
|
|
try (var b2 = buffer2.receive()) {
|
|
try (var b3 = buffer3.receive()) {
|
|
if (b1.writerOffset() < b1.capacity()
|
|
|| b2.writerOffset() < b2.capacity()
|
|
|| b3.writerOffset() < b3.capacity()) {
|
|
b1.ensureWritable(b2.readableBytes(), b2.readableBytes(), true);
|
|
b2.copyInto(b2.readerOffset(), b1, b1.writerOffset(), b2.readableBytes());
|
|
b1.writerOffset(b1.writerOffset() + b2.readableBytes());
|
|
|
|
b1.ensureWritable(b3.readableBytes(), b3.readableBytes(), true);
|
|
b3.copyInto(b3.readerOffset(), b1, b1.writerOffset(), b3.readableBytes());
|
|
b1.writerOffset(b1.writerOffset() + b3.readableBytes());
|
|
return b1;
|
|
} else {
|
|
return CompositeBuffer.compose(alloc, b1.send(), b2.send(), b3.send());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public static <T> Mono<T> resolveDelta(Mono<Delta<T>> prev, UpdateReturnMode updateReturnMode) {
|
|
return prev.handle((delta, sink) -> {
|
|
switch (updateReturnMode) {
|
|
case GET_NEW_VALUE -> {
|
|
var current = delta.current();
|
|
if (current != null) {
|
|
sink.next(current);
|
|
} else {
|
|
sink.complete();
|
|
}
|
|
}
|
|
case GET_OLD_VALUE -> {
|
|
var previous = delta.previous();
|
|
if (previous != null) {
|
|
sink.next(previous);
|
|
} else {
|
|
sink.complete();
|
|
}
|
|
}
|
|
case NOTHING -> sink.complete();
|
|
default -> sink.error(new IllegalStateException());
|
|
}
|
|
});
|
|
}
|
|
|
|
public static Mono<Send<Buffer>> resolveLLDelta(Mono<Send<LLDelta>> prev, UpdateReturnMode updateReturnMode) {
|
|
return prev.handle((deltaToReceive, sink) -> {
|
|
try (var delta = deltaToReceive.receive()) {
|
|
switch (updateReturnMode) {
|
|
case GET_NEW_VALUE -> {
|
|
var current = delta.current();
|
|
if (current != null) {
|
|
sink.next(current);
|
|
} else {
|
|
sink.complete();
|
|
}
|
|
}
|
|
case GET_OLD_VALUE -> {
|
|
var previous = delta.previous();
|
|
if (previous != null) {
|
|
sink.next(previous);
|
|
} else {
|
|
sink.complete();
|
|
}
|
|
}
|
|
case NOTHING -> sink.complete();
|
|
default -> sink.error(new IllegalStateException());
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
public static <T, U> Mono<Delta<U>> mapDelta(Mono<Delta<T>> mono,
|
|
SerializationFunction<@NotNull T, @Nullable U> mapper) {
|
|
return mono.handle((delta, sink) -> {
|
|
try {
|
|
T prev = delta.previous();
|
|
T curr = delta.current();
|
|
U newPrev;
|
|
U newCurr;
|
|
if (prev != null) {
|
|
newPrev = mapper.apply(prev);
|
|
} else {
|
|
newPrev = null;
|
|
}
|
|
if (curr != null) {
|
|
newCurr = mapper.apply(curr);
|
|
} else {
|
|
newCurr = null;
|
|
}
|
|
sink.next(new Delta<>(newPrev, newCurr));
|
|
} catch (SerializationException ex) {
|
|
sink.error(ex);
|
|
}
|
|
});
|
|
}
|
|
|
|
public static <U> Mono<Delta<U>> mapLLDelta(Mono<Send<LLDelta>> mono,
|
|
SerializationFunction<@NotNull Send<Buffer>, @Nullable U> mapper) {
|
|
return mono.handle((deltaToReceive, sink) -> {
|
|
try (var delta = deltaToReceive.receive()) {
|
|
try (Send<Buffer> prev = delta.previous()) {
|
|
try (Send<Buffer> curr = delta.current()) {
|
|
U newPrev;
|
|
U newCurr;
|
|
if (prev != null) {
|
|
newPrev = mapper.apply(prev);
|
|
} else {
|
|
newPrev = null;
|
|
}
|
|
if (curr != null) {
|
|
newCurr = mapper.apply(curr);
|
|
} else {
|
|
newCurr = null;
|
|
}
|
|
sink.next(new Delta<>(newPrev, newCurr));
|
|
}
|
|
}
|
|
} catch (SerializationException ex) {
|
|
sink.error(ex);
|
|
}
|
|
});
|
|
}
|
|
|
|
public static <R, V> boolean isDeltaChanged(Delta<V> delta) {
|
|
return !Objects.equals(delta.previous(), delta.current());
|
|
}
|
|
|
|
public static Mono<Send<Buffer>> lazyRetain(Buffer buf) {
|
|
return Mono.just(buf).map(b -> b.copy().send());
|
|
}
|
|
|
|
public static Mono<Send<LLRange>> lazyRetainRange(LLRange range) {
|
|
return Mono.just(range).map(r -> r.copy().send());
|
|
}
|
|
|
|
public static Mono<Send<Buffer>> lazyRetain(Callable<Send<Buffer>> bufCallable) {
|
|
return Mono.fromCallable(bufCallable);
|
|
}
|
|
|
|
public static Mono<Send<LLRange>> lazyRetainRange(Callable<Send<LLRange>> rangeCallable) {
|
|
return Mono.fromCallable(rangeCallable);
|
|
}
|
|
|
|
public static <T> Mono<T> handleDiscard(Mono<T> mono) {
|
|
return mono.doOnDiscard(Object.class, obj -> {
|
|
if (obj instanceof SafeCloseable o) {
|
|
discardRefCounted(o);
|
|
} else if (obj instanceof Entry o) {
|
|
discardEntry(o);
|
|
} else if (obj instanceof Collection o) {
|
|
discardCollection(o);
|
|
} else if (obj instanceof Tuple3 o) {
|
|
discardTuple3(o);
|
|
} else if (obj instanceof Tuple2 o) {
|
|
discardTuple2(o);
|
|
} else if (obj instanceof LLEntry o) {
|
|
discardLLEntry(o);
|
|
} else if (obj instanceof LLRange o) {
|
|
discardLLRange(o);
|
|
} else if (obj instanceof LLDelta o) {
|
|
discardLLDelta(o);
|
|
} else if (obj instanceof Delta o) {
|
|
discardDelta(o);
|
|
} else if (obj instanceof Send o) {
|
|
discardSend(o);
|
|
} else if (obj instanceof Map o) {
|
|
discardMap(o);
|
|
} else if (obj instanceof DatabaseStage o) {
|
|
discardStage(o);
|
|
}
|
|
});
|
|
// todo: check if the single object discard hook is more performant
|
|
/*
|
|
.doOnDiscard(SafeCloseable.class, LLUtils::discardRefCounted)
|
|
.doOnDiscard(Map.Entry.class, LLUtils::discardEntry)
|
|
.doOnDiscard(Collection.class, LLUtils::discardCollection)
|
|
.doOnDiscard(Tuple2.class, LLUtils::discardTuple2)
|
|
.doOnDiscard(Tuple3.class, LLUtils::discardTuple3)
|
|
.doOnDiscard(LLEntry.class, LLUtils::discardLLEntry)
|
|
.doOnDiscard(LLRange.class, LLUtils::discardLLRange)
|
|
.doOnDiscard(Delta.class, LLUtils::discardDelta)
|
|
.doOnDiscard(LLDelta.class, LLUtils::discardLLDelta)
|
|
.doOnDiscard(Send.class, LLUtils::discardSend)
|
|
.doOnDiscard(Resource.class, LLUtils::discardResource)
|
|
.doOnDiscard(Map.class, LLUtils::discardMap)
|
|
.doOnDiscard(DatabaseStage.class, LLUtils::discardStage);
|
|
|
|
*/
|
|
}
|
|
|
|
public static <T> Flux<T> handleDiscard(Flux<T> mono) {
|
|
return mono.doOnDiscard(Object.class, obj -> {
|
|
if (obj instanceof SafeCloseable o) {
|
|
discardRefCounted(o);
|
|
} else if (obj instanceof Entry o) {
|
|
discardEntry(o);
|
|
} else if (obj instanceof Collection o) {
|
|
discardCollection(o);
|
|
} else if (obj instanceof Tuple3 o) {
|
|
discardTuple3(o);
|
|
} else if (obj instanceof Tuple2 o) {
|
|
discardTuple2(o);
|
|
} else if (obj instanceof LLEntry o) {
|
|
discardLLEntry(o);
|
|
} else if (obj instanceof LLRange o) {
|
|
discardLLRange(o);
|
|
} else if (obj instanceof Delta o) {
|
|
discardDelta(o);
|
|
} else if (obj instanceof LLDelta o) {
|
|
discardLLDelta(o);
|
|
} else if (obj instanceof Send o) {
|
|
discardSend(o);
|
|
} else if (obj instanceof Resource o) {
|
|
discardResource(o);
|
|
} else if (obj instanceof Map o) {
|
|
discardMap(o);
|
|
} else if (obj instanceof DatabaseStage o) {
|
|
discardStage(o);
|
|
}
|
|
});
|
|
// todo: check if the single object discard hook is more performant
|
|
/*
|
|
.doOnDiscard(SafeCloseable.class, LLUtils::discardRefCounted)
|
|
.doOnDiscard(Map.Entry.class, LLUtils::discardEntry)
|
|
.doOnDiscard(Collection.class, LLUtils::discardCollection)
|
|
.doOnDiscard(Tuple2.class, LLUtils::discardTuple2)
|
|
.doOnDiscard(Tuple3.class, LLUtils::discardTuple3)
|
|
.doOnDiscard(LLEntry.class, LLUtils::discardLLEntry)
|
|
.doOnDiscard(LLRange.class, LLUtils::discardLLRange)
|
|
.doOnDiscard(Delta.class, LLUtils::discardDelta)
|
|
.doOnDiscard(LLDelta.class, LLUtils::discardLLDelta)
|
|
.doOnDiscard(Send.class, LLUtils::discardSend)
|
|
.doOnDiscard(Map.class, LLUtils::discardMap)
|
|
.doOnDiscard(DatabaseStage.class, LLUtils::discardStage);
|
|
|
|
*/
|
|
}
|
|
|
|
private static void discardLLEntry(LLEntry entry) {
|
|
logger.trace(MARKER_ROCKSDB, "Releasing discarded Buffer");
|
|
entry.close();
|
|
}
|
|
|
|
private static void discardLLRange(LLRange range) {
|
|
logger.trace(MARKER_ROCKSDB, "Releasing discarded LLRange");
|
|
range.close();
|
|
}
|
|
|
|
private static void discardLLDelta(LLDelta delta) {
|
|
logger.trace(MARKER_ROCKSDB, "Releasing discarded LLDelta");
|
|
delta.close();
|
|
}
|
|
|
|
private static void discardEntry(Map.Entry<?, ?> e) {
|
|
if (e.getKey() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
if (e.getValue() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
|
|
private static void discardTuple2(Tuple2<?, ?> e) {
|
|
if (e.getT1() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
if (e.getT2() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
|
|
private static void discardTuple3(Tuple3<?, ?, ?> e) {
|
|
if (e.getT1() instanceof Buffer bb) {
|
|
bb.close();
|
|
} else if (e.getT1() instanceof Optional opt) {
|
|
if (opt.isPresent() && opt.get() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
if (e.getT2() instanceof Buffer bb) {
|
|
bb.close();
|
|
} else if (e.getT1() instanceof Optional opt) {
|
|
if (opt.isPresent() && opt.get() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
if (e.getT3() instanceof Buffer bb) {
|
|
bb.close();
|
|
} else if (e.getT1() instanceof Optional opt) {
|
|
if (opt.isPresent() && opt.get() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void discardRefCounted(SafeCloseable safeCloseable) {
|
|
safeCloseable.close();
|
|
}
|
|
|
|
private static void discardCollection(Collection<?> collection) {
|
|
for (Object o : collection) {
|
|
if (o instanceof SafeCloseable safeCloseable) {
|
|
safeCloseable.close();
|
|
} else if (o instanceof Map.Entry entry) {
|
|
if (entry.getKey() instanceof SafeCloseable bb) {
|
|
bb.close();
|
|
}
|
|
if (entry.getValue() instanceof SafeCloseable bb) {
|
|
bb.close();
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void discardDelta(Delta<?> delta) {
|
|
if (delta.previous() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
if (delta.current() instanceof Buffer bb) {
|
|
bb.close();
|
|
}
|
|
}
|
|
|
|
private static void discardSend(Send<?> send) {
|
|
send.close();
|
|
}
|
|
|
|
private static void discardResource(Resource<?> res) {
|
|
res.close();
|
|
}
|
|
|
|
private static void discardMap(Map<?, ?> map) {
|
|
for (Entry<?, ?> entry : map.entrySet()) {
|
|
boolean hasByteBuf = false;
|
|
if (entry.getKey() instanceof Buffer bb) {
|
|
bb.close();
|
|
hasByteBuf = true;
|
|
}
|
|
if (entry.getValue() instanceof Buffer bb) {
|
|
bb.close();
|
|
hasByteBuf = true;
|
|
}
|
|
if (!hasByteBuf) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
private static void discardStage(DatabaseStage<?> stage) {
|
|
// do nothing for now, to avoid double-free problems
|
|
}
|
|
|
|
public static boolean isDirect(Buffer key) {
|
|
var readableComponents = key.countReadableComponents();
|
|
if (readableComponents == 0) {
|
|
return true;
|
|
} else if (readableComponents == 1) {
|
|
return key.forEachReadable(0, (index, component) -> component.readableBuffer().isDirect()) >= 0;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public static String deserializeString(Send<Buffer> bufferSend, int readerOffset, int length, Charset charset) {
|
|
try (var buffer = bufferSend.receive()) {
|
|
byte[] bytes = new byte[Math.min(length, buffer.readableBytes())];
|
|
buffer.copyInto(readerOffset, bytes, 0, length);
|
|
return new String(bytes, charset);
|
|
}
|
|
}
|
|
|
|
public static String deserializeString(@NotNull Buffer buffer, int readerOffset, int length, Charset charset) {
|
|
byte[] bytes = new byte[Math.min(length, buffer.readableBytes())];
|
|
buffer.copyInto(readerOffset, bytes, 0, length);
|
|
return new String(bytes, charset);
|
|
}
|
|
|
|
public static int utf8MaxBytes(String deserialized) {
|
|
return deserialized.length() * 3;
|
|
}
|
|
}
|