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markov
Commit 218bdd37 by Hut
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some cleanup

parent 0d976c4d
Showing with 489 additions and 486 deletions
pom.xml
......@@ -17,7 +17,11 @@
</properties>
<dependencies>
<dependency>
<groupId>directory.passive</groupId>
<artifactId>huffman</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>com.tomgibara.bits</groupId>
<artifactId>bits</artifactId>
......@@ -35,6 +39,12 @@
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-params</artifactId>
<version>${junit.jupiter.version}</version>
<scope>test</scope>
</dependency>
<!-- To avoid compiler warnings about @API annotations in JUnit code -->
<dependency>
<groupId>org.apiguardian</groupId>
......
src/main/java/markov/Data.java
......@@ -23,7 +23,6 @@ public class Data implements Serializable{
public void add(Prefix p, Token t) {
Lookup l = data.getOrDefault(p, new Lookup());
// System.out.println(String.format("adding %s - %s", p, t, l));
l.add(t);
data.put(p, l);
}
......
src/main/java/markov/Lookup.java
......@@ -4,6 +4,7 @@ import java.io.Serializable;
import java.util.Arrays;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map.Entry;
import java.util.Set;
import java.util.stream.Collectors;
......@@ -57,8 +58,9 @@ public class Lookup implements Serializable {
throw new IllegalStateException("not jet finished");
}
if (id < 0 || id > finishedSums.length) {
throw new IllegalArgumentException(
String.format("got %d but expected id [0; %d)", id, finishedSums.length));
throw new IllegalArgumentException(String.format("got %d but expected id [0; %d)",
id,
finishedSums.length));
}
return finalData[id];
}
......@@ -79,20 +81,18 @@ public class Lookup implements Serializable {
int size = tokens.size();
finishedSums = new long[size];
finalData = new Decission[size];
final int[] i = new int[1];
i[0] = 0;
final long[] sum = new long[1];
sum[0] = 0;
tokens.entrySet()
List<Entry<Token, Integer>> orderedEntries = tokens.entrySet()
.stream()
.sequential()
.sorted(Comparator.comparingInt(Entry::getValue))
.forEach(e -> {
sum[0] += e.getValue();
finishedSums[i[0]] = sum[0];
finalData[i[0]] = new Decission(e.getKey(), i[0], this);
i[0]++;
});
.collect(Collectors.toList());
int sum = 0;
for (int i = 0; i < orderedEntries.size(); i++) {
Entry<Token, Integer> entry = orderedEntries.get(i);
sum += entry.getValue();
finishedSums[i] = sum;
finalData[i] = new Decission(entry.getKey(), i, this);
}
this.tokens.clear();
isFinishedCollecting = true;
}
......@@ -100,10 +100,10 @@ public class Lookup implements Serializable {
@Override
public String toString() {
return "Lookup [tokens= " + tokens.entrySet().stream().sorted(
(e1, e2) -> Integer.compare(e2.getValue(), e1.getValue())).map(
e -> String.format("%d*%s", e.getValue(), e.getKey())).collect(
Collectors.joining(", ")) + "]";
return "Lookup [tokens= " + tokens.entrySet().stream().sorted((e1, e2) -> Integer.compare(e2
.getValue(), e1.getValue())).map(e -> String.format("%d*%s",
e.getValue(),
e.getKey())).collect(Collectors.joining(", ")) + "]";
}
/**
......
src/main/java/markov/Mail.java
package markov;
import com.google.common.base.Stopwatch;
import markov.huffman.ByteHuffmanCodeBuilder;
import markov.huffman.HuffmanCode;
import directory.passive.huffman.ByteHuffmanCodeBuilder;
import directory.passive.huffman.HuffmanCode;
import markov.huffman.HuffmanStore;
import markov.stuff.CountMap;
import markov.stuff.Inspector;
......@@ -26,10 +26,12 @@ import java.util.stream.IntStream;
public class Mail {
private static final String intsFileLocation = System.getProperties().getProperty(
"huffmanints.file", "classpath:huffmanInts");
private static final String bytesFileLocation = System.getProperties().getProperty(
"huffmanbytes.file", "classpath:huffmanBytes");
private static final String intsFileLocation = System.getProperties().getProperty
("huffmanints.file",
"classpath:huffmanInts");
private static final String bytesFileLocation = System.getProperties().getProperty
("huffmanbytes.file",
"classpath:huffmanBytes");
private static final int iterations = 1_000_000;
// private static final int iterations = 10_000;
......@@ -79,8 +81,9 @@ public class Mail {
Stopwatch s = Stopwatch.createStarted();
for (int i = 0; i < iterations; i++) {
Utils.maybePrintPercentages(i, iterations);
IntStream.range(1, maxPrefix + 1).parallel().forEach(
j -> trainer[j].getId(builder[j].random()));
IntStream.range(1, maxPrefix + 1)
.parallel()
.forEach(j -> trainer[j].getId(builder[j].random()));
// for (int j = 1; j <= maxPrefix; j++) {
// trainer[j].getId(builder[j].random());
// }
......@@ -99,31 +102,6 @@ public class Mail {
}
@SuppressWarnings("unchecked")
private Map<Integer, CountMap<Integer>> readIntMap() {
HuffmanStore<Integer> store = readHUffmanMap(intsFileLocation);
return store.getInternal();
}
@SuppressWarnings("unchecked")
private Map<Integer, CountMap<Byte>> readByteMap() {
HuffmanStore<Byte> store = readHUffmanMap(bytesFileLocation);
return store.getInternal();
}
// we controll whats in the file
@SuppressWarnings("unchecked")
private <X extends Serializable> HuffmanStore<X> readHUffmanMap(String location) {
File file = Utils.getFile(location);
System.out.println("reading from: " + file.getAbsolutePath());
try (ObjectInputStream in = new ObjectInputStream(new FileInputStream(file))) {
return (HuffmanStore<X>) in.readObject();
} catch (IOException | ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
private void saveHuffmanMaps(
Map<Integer, CountMap<Integer>> intCounts, Map<Integer, CountMap<Byte>> byteCounts) {
......@@ -143,69 +121,61 @@ public class Mail {
private void printPrefixes() throws NoSuchFieldException, IllegalAccessException {
Map<Integer, Data> data = Utils.createDataMap(4);
System.out.println("\n\n\n1:");
Inspector.extractMap(data.get(1)).keySet().stream().sorted().limit(20).forEach(
System.out::println);
Inspector.extractMap(data.get(1))
.keySet()
.stream()
.sorted()
.limit(20)
.forEach(System.out::println);
System.out.println("\n\n\n2:");
Inspector.extractMap(data.get(2)).keySet().stream().sorted().limit(20).forEach(
System.out::println);
Inspector.extractMap(data.get(2))
.keySet()
.stream()
.sorted()
.limit(20)
.forEach(System.out::println);
System.out.println("\n\n\n3:");
Inspector.extractMap(data.get(3)).keySet().stream().sorted().limit(20).forEach(
System.out::println);
Inspector.extractMap(data.get(3))
.keySet()
.stream()
.sorted()
.limit(20)
.forEach(System.out::println);
System.out.println("\n\n\n4:");
Inspector.extractMap(data.get(4)).keySet().stream().sorted().limit(20).forEach(
System.out::println);
Inspector.extractMap(data.get(4))
.keySet()
.stream()
.sorted()
.limit(20)
.forEach(System.out::println);
}
private void printDataHashStats() throws NoSuchFieldException, IllegalAccessException {
Map<Integer, Data> data = Utils.createDataMap(7);
Inspector.printDataHashStats(data);
}
private static class ShortenerStats {
private final Shortener shortener;
private final List<Integer> stats = new ArrayList<>(iterations);
private ShortenerStats(Shortener shortener) {
this.shortener = shortener;
}
public void record(Sentence sentence) {
stats.add(shortener.getId(sentence).length());
}
public void printStats() {
System.out.println(shortener.getClass().getName());
System.out.println("distinct: " + stats.stream().distinct().count());
IntSummaryStatistics statistics = stats.stream()
.mapToInt(Integer::intValue)
.summaryStatistics();
System.out.println(String.format("avg, min, high: %f, %d, %d", statistics.getAverage(),
statistics.getMin(), statistics.getMax()));
System.out.println("SD: " + Math.sqrt(stats.stream()
.mapToDouble(e -> (double) (Math.pow(
e - statistics.getAverage(), 2)))
.sum() / iterations));
}
}
public void printShorterStats() throws IOException, ClassNotFoundException {
int prefixLength = 4;
HuffmanCode<Integer, List<Boolean>, Boolean, SimpleCountMap.MutableInt> intCode =
new ByteHuffmanCodeBuilder<Integer, SimpleCountMap.MutableInt>().generateCode(
readIntMap().get(prefixLength).asMap());
HuffmanCode<Byte, List<Boolean>, Boolean, SimpleCountMap.MutableInt> byteCode =
new ByteHuffmanCodeBuilder<Byte, SimpleCountMap.MutableInt>().generateCode(
readByteMap().get(prefixLength).asMap());
HuffmanCode<Integer, List<Boolean>> intCode =
ByteHuffmanCodeBuilder.<Integer, SimpleCountMap.MutableInt>createFactory()
.generateCode(
readIntMap().get(prefixLength).asMap(),
new SimpleCountMap.MutableInt.FrequencySupport());
HuffmanCode<Byte, List<Boolean>> byteCode =
ByteHuffmanCodeBuilder.<Byte, SimpleCountMap.MutableInt>createFactory()
.generateCode(
readByteMap().get(prefixLength).asMap(),
new SimpleCountMap.MutableInt.FrequencySupport());
Map<Integer, Data> dataMap = Utils.createDataMap(prefixLength);
Builder b = new Builder(prefixLength, dataMap.get(prefixLength));
List<ShortenerStats> shorter = Arrays.asList(
new ShortenerStats(new ShortenerSimpleImpl(dataMap.get(prefixLength))),
new ShortenerStats(new ShortenerIntHuffmanImpl(dataMap.get(prefixLength), intCode)),
new ShortenerStats(
new ShortenerByteHuffmanImpl(dataMap.get(prefixLength), byteCode)));
new ShortenerStats(new ShortenerByteHuffmanImpl(dataMap.get(prefixLength),
byteCode)));
System.out.println("creating...");
for (int i = 0; i < iterations; i++) {
......@@ -221,5 +191,59 @@ public class Mail {
}
}
@SuppressWarnings("unchecked")
private Map<Integer, CountMap<Integer>> readIntMap() {
HuffmanStore<Integer> store = readHUffmanMap(intsFileLocation);
return store.getInternal();
}
@SuppressWarnings("unchecked")
private Map<Integer, CountMap<Byte>> readByteMap() {
HuffmanStore<Byte> store = readHUffmanMap(bytesFileLocation);
return store.getInternal();
}
// we controll whats in the file
@SuppressWarnings("unchecked")
private <X extends Serializable> HuffmanStore<X> readHUffmanMap(String location) {
File file = Utils.getFile(location);
System.out.println("reading from: " + file.getAbsolutePath());
try (ObjectInputStream in = new ObjectInputStream(new FileInputStream(file))) {
return (HuffmanStore<X>) in.readObject();
} catch (IOException | ClassNotFoundException e) {
throw new RuntimeException(e);
}
}
private static class ShortenerStats {
private final Shortener shortener;
private final List<Integer> stats = new ArrayList<>(iterations);
private ShortenerStats(Shortener shortener) {
this.shortener = shortener;
}
public void record(Sentence sentence) {
stats.add(shortener.getId(sentence).length());
}
public void printStats() {
System.out.println(shortener.getClass().getName());
System.out.println("distinct: " + stats.stream().distinct().count());
IntSummaryStatistics statistics =
stats.stream().mapToInt(Integer::intValue).summaryStatistics();
System.out.println(String.format("avg, min, high: %f, %d, %d",
statistics.getAverage(),
statistics.getMin(),
statistics.getMax()));
System.out.println("SD: " + Math.sqrt(stats.stream()
.mapToDouble(e -> (double) (Math.pow(
e - statistics.getAverage(),
2)))
.sum() / iterations));
}
}
}
src/main/java/markov/ShortenerByteHuffmanImpl.java
package markov;
import markov.huffman.HuffmanCode;
import directory.passive.huffman.HuffmanCode;
import markov.stuff.BitConverter;
import markov.stuff.SimpleCountMap;
import markov.stuff.Utils;
import java.util.Base64;
......@@ -14,12 +13,11 @@ import java.util.stream.Stream;
public class ShortenerByteHuffmanImpl extends ShortenerSimpleImpl {
private final HuffmanCode<Byte, List<Boolean>, Boolean, SimpleCountMap.MutableInt> byteCode;
private final HuffmanCode<Byte, List<Boolean>> byteCode;
public ShortenerByteHuffmanImpl(
Data data,
HuffmanCode<Byte, List<Boolean>, Boolean, SimpleCountMap.MutableInt> byteCode) {
Data data, HuffmanCode<Byte, List<Boolean>> byteCode) {
super(data);
this.byteCode = byteCode;
}
......
src/main/java/markov/ShortenerIntHuffmanImpl.java
package markov;
import markov.huffman.HuffmanCode;
import directory.passive.huffman.HuffmanCode;
import markov.stuff.BitConverter;
import markov.stuff.SimpleCountMap;
import java.util.Base64;
import java.util.List;
......@@ -12,12 +11,11 @@ import java.util.stream.Stream;
public class ShortenerIntHuffmanImpl extends ShortenerSimpleImpl {
private final HuffmanCode<Integer, List<Boolean>, Boolean, SimpleCountMap.MutableInt> intCode;
private final HuffmanCode<Integer, List<Boolean>> intCode;
public ShortenerIntHuffmanImpl(
Data data,
HuffmanCode<Integer, List<Boolean>, Boolean, SimpleCountMap.MutableInt> byteCode) {
Data data, HuffmanCode<Integer, List<Boolean>> byteCode) {
super(data);
this.intCode = byteCode;
}
......
src/main/java/markov/Tokenizer.java
......@@ -10,29 +10,10 @@ public class Tokenizer {
public Stream<Stream<Token>> tokenizeCombined(Stream<Stream<String>> input) {
return input.map(stringStream -> putMarkers(combineToTokens(stringStream.flatMap(s -> s.codePoints().boxed().map(
this::glyphFromCodePoint)))));
}
public Stream<Stream<Token>> tokenize(Stream<String> input) {
return input.map(s -> putMarkers(combineToTokens(s.codePoints().boxed().map(
this::glyphFromCodePoint))));
}
private Glyph glyphFromCodePoint(int codePoint) {
Glyph.Type type = Glyph.Type.other;
if (Character.isWhitespace(codePoint)) {
type = Glyph.Type.whitespace;
} else if (Character.isAlphabetic(codePoint)) {
type = Glyph.Type.word;
} else if (Arrays.asList(Character.START_PUNCTUATION, Character.END_PUNCTUATION, Character.INITIAL_QUOTE_PUNCTUATION, Character.FINAL_QUOTE_PUNCTUATION,
Character.OTHER_PUNCTUATION).contains(Character.getType(codePoint))) {
type = Glyph.Type.punctuation;
}
String value = new String(Character.toChars(codePoint));
return new Glyph(type, value);
return input.map(stringStream -> putMarkers(combineToTokens(stringStream.flatMap(s -> s
.codePoints()
.boxed()
.map(this::glyphFromCodePoint)))));
}
private Stream<Token> putMarkers(Stream<Token> input) {
......@@ -41,21 +22,20 @@ public class Tokenizer {
public Stream<Token> combineToTokens(Stream<Glyph> glyphs) {
final Container[] previous = new Container[]{null};
return Stream.concat(glyphs, Stream.of(new Glyph(Glyph.Type.empty, "")))
.map(g -> {
return Stream.concat(glyphs, Stream.of(new Glyph(Glyph.Type.empty, ""))).map(g -> {
Container o = new Container(g);
o.p = previous[0];
previous[0] = o;
return o;
}).flatMap(go -> {
if (go.p != null && go.p.self != null && !go.self.getType().equals(go.p.self.getType())) {
if (go.p != null && go.p.self != null &&
!go.self.getType().equals(go.p.self.getType())) {
List<Glyph> tokenGlyphs = new ArrayList<>();
Container c = go;
do {
c = c.p;
tokenGlyphs.add(0, c.self);
}
while (c != null && c.p != null && c.p.self != null &&
} while (c != null && c.p != null && c.p.self != null &&
c.self.getType().equals(c.p.self.getType()));
go.p = null; // memory optimization
return Stream.<List<Glyph>>builder().add(tokenGlyphs).build();
......@@ -65,6 +45,30 @@ public class Tokenizer {
}).map(this::getTokenFromGlyphs);
}
public Stream<Stream<Token>> tokenize(Stream<String> input) {
return input.map(s -> putMarkers(combineToTokens(s.codePoints()
.boxed()
.map(this::glyphFromCodePoint))));
}
private Glyph glyphFromCodePoint(int codePoint) {
Glyph.Type type = Glyph.Type.other;
if (Character.isWhitespace(codePoint)) {
type = Glyph.Type.whitespace;
} else if (Character.isAlphabetic(codePoint)) {
type = Glyph.Type.word;
} else if (Arrays.asList(
Character.START_PUNCTUATION,
Character.END_PUNCTUATION,
Character.INITIAL_QUOTE_PUNCTUATION,
Character.FINAL_QUOTE_PUNCTUATION,
Character.OTHER_PUNCTUATION).contains(Character.getType(codePoint))) {
type = Glyph.Type.punctuation;
}
String value = new String(Character.toChars(codePoint));
return new Glyph(type, value);
}
private Token getTokenFromGlyphs(List<Glyph> l) {
String content = l.stream().map(Glyph::getContent).collect(Collectors.joining());
Glyph.Type type = l.get(0).getType();
......@@ -72,11 +76,11 @@ public class Tokenizer {
}
private static class Container {
final Glyph self;
Container p;
Container(Glyph self) {
this.self = self;
}
final Glyph self;
Container p;
}
}
src/main/java/markov/huffman/BitConverter.java 0 → 100644
package markov.huffman;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class BitConverter {
public byte[] toBytes(List<Boolean> list) {
int listLength = list.size();
int lengthInBit = listLength + 3;
int arrayLength = Math.max(1, (int) Math.ceil(lengthInBit / 8d));
byte[] bytes = new byte[arrayLength];
int lastByteNotEmpty = lengthInBit % 8;
// temp variable to not constantly write to heap
byte tmpByte = ((byte) lastByteNotEmpty);
int i = 0;
// set 3 bits for the lastByteNotEmpty number
for (int j = 3; j < 8 && i < listLength; j++, i++) {
tmpByte = setBit(list, tmpByte, i, j);
}
bytes[0] = tmpByte;
// set rest of the bits
for (int j = 1; j < arrayLength; j++) {
tmpByte = 0;
for (int l = 0; l < 8 && i < listLength; l++, i++) {
tmpByte = setBit(list, tmpByte, i, l);
}
bytes[j] = tmpByte;
}
return bytes;
}
private byte setBit(List<Boolean> list, byte tmpByte, int i, int j) {
tmpByte |= (byte) (list.get(i) ? 1 : 0) << j;
return tmpByte;
}
public List<Boolean> toBits(byte[] array) {
int arrayLength = array.length;
if (arrayLength == 0) {
return Collections.emptyList();
}
// determine lastByteNotEmpty bits
byte tmpByte = array[0];
int lastByteNotEmpty = tmpByte & 0b00000111;
int listSize = 8 * arrayLength + (lastByteNotEmpty == 0 ? -3 : lastByteNotEmpty - 11);
if (arrayLength == 1 && lastByteNotEmpty < 4 && lastByteNotEmpty != 0) {
throw new IllegalArgumentException("corrupted data");
}
return toListPrimitive(listSize, array);
}
private static List<Boolean> toListPrimitive(int listSize, byte[] array) {
List<Boolean> list = new ArrayList<>(listSize);
for (int i = 3; i < listSize + 3; i++) {
list.add((array[i / 8] & 1 << (i % 8)) >> i % 8 == 1);
}
return list;
}
}
src/main/java/markov/huffman/ByteHuffmanCodeBuilder.java deleted 100644 → 0
package markov.huffman;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;
public class ByteHuffmanCodeBuilder<ContentType, FrequencyType extends FrequenceType<FrequencyType>> extends HuffmanCodeBuilder<ContentType, List<Boolean>, Boolean, FrequencyType> {
private static final Supplier<List<Boolean>> rootCodeSupplier = ArrayList::new;
private static final Supplier<Boolean> leftGlyph = () -> false;
private static final Supplier<Boolean> rightGlyph = () -> true;
private static final BiFunction<List<Boolean>, Boolean, List<Boolean>> combiner = (l, g) -> {
l = new ArrayList<>(l);
l.add(g);
return l;
};
private static final Function<List<Boolean>, Iterator<Boolean>> splitter = List::iterator;
public ByteHuffmanCodeBuilder() {
super(rootCodeSupplier, leftGlyph, rightGlyph, combiner, splitter, (n, b) -> b ? n.getRight() : n.getLeft());
}
}
src/main/java/markov/huffman/FrequenceType.java deleted 100644 → 0
package markov.huffman;
public interface FrequenceType<X extends FrequenceType> extends Comparable<X> {
X add(X b);
boolean isGreaterZero();
}
src/main/java/markov/huffman/HuffmanCode.java deleted 100644 → 0
package markov.huffman;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.function.BiFunction;
import java.util.function.Function;
public class HuffmanCode<ContentType, SequenceType, GlyphType, FrequencyType extends FrequenceType<FrequencyType>> implements Serializable {
private final Map<ContentType, SequenceType> codes;
private final HuffmanTree<ContentType, SequenceType, FrequencyType> tree;
private final Function<SequenceType, Iterator<GlyphType>> splitter;
private final BiFunction<HuffmanNode<ContentType, SequenceType, FrequencyType>,
GlyphType, HuffmanTree<ContentType, SequenceType, FrequencyType>> leftRightDecider;
public HuffmanCode(Map<ContentType, SequenceType> codes,
HuffmanTree<ContentType, SequenceType, FrequencyType> tree,
Function<SequenceType, Iterator<GlyphType>> splitter,
BiFunction<HuffmanNode<ContentType, SequenceType, FrequencyType>,
GlyphType,
HuffmanTree<ContentType, SequenceType, FrequencyType>> leftRightDecider) {
this.codes = codes;
this.tree = tree;
this.splitter = splitter;
this.leftRightDecider = leftRightDecider;
}
public SequenceType encode(ContentType t) {
return codes.get(t);
}
public List<ContentType> decode(SequenceType v) {
List<ContentType> ret = new ArrayList<>();
Iterator<GlyphType> iterator = splitter.apply(v);
HuffmanTree<ContentType, SequenceType, FrequencyType> node = tree;
while (iterator.hasNext()) {
GlyphType glyph = iterator.next();
node = leftRightDecider.apply((HuffmanNode<ContentType, SequenceType, FrequencyType>) node, glyph);
if (node instanceof HuffmanLeaf) {
ret.add(((HuffmanLeaf<ContentType, SequenceType, FrequencyType>) node).getValue());
node = tree;
}
}
return ret;
}
}
\ No newline at end of file
src/main/java/markov/huffman/HuffmanCodeBuilder.java deleted 100644 → 0
package markov.huffman;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.PriorityQueue;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.function.Supplier;
/**
* Used to build a HUffman Code instance to code a given ContentType into a SequenceType,
* and decode a sequence of SequenceTypes into a sequence of ContentTypes,
* using the given Frequency type to determine the distribution.
*
* @param <ContentType>
* @param <SequenceType>
* @param <GlyphType>
* @param <FrequencyType>
*/
public class HuffmanCodeBuilder<ContentType, SequenceType, GlyphType, FrequencyType extends FrequenceType<FrequencyType>> {
private final Supplier<SequenceType> rootCodeSupplier;
private final Supplier<GlyphType> leftGlyph;
private final Supplier<GlyphType> rightGlyph;
private final BiFunction<SequenceType, GlyphType, SequenceType> combiner;
private final Function<SequenceType, Iterator<GlyphType>> splitter;
private final BiFunction<HuffmanNode<ContentType, SequenceType, FrequencyType>,
GlyphType, HuffmanTree<ContentType, SequenceType, FrequencyType>> leftRightDecider;
private HuffmanNode<ContentType, SequenceType, FrequencyType> tree;
private final Map<ContentType, SequenceType> codes = new HashMap<>();
public HuffmanCodeBuilder(Supplier<SequenceType> rootCodeSupplier, Supplier<GlyphType> leftGlyph, Supplier<GlyphType> rightGlyph, BiFunction<SequenceType, GlyphType, SequenceType> combiner, Function<SequenceType, Iterator<GlyphType>> splitter, BiFunction<HuffmanNode<ContentType, SequenceType, FrequencyType>, GlyphType, HuffmanTree<ContentType, SequenceType, FrequencyType>> leftRightDecider) {
this.rootCodeSupplier = rootCodeSupplier;
this.leftGlyph = leftGlyph;
this.rightGlyph = rightGlyph;
this.combiner = combiner;
this.splitter = splitter;
this.leftRightDecider = leftRightDecider;
}
public HuffmanCode<ContentType, SequenceType, GlyphType, FrequencyType> generateCode(Map<ContentType, FrequencyType> frequencies) {
tree = buildTree(frequencies);
tree.setCode(rootCodeSupplier.get());
generateCodes(tree);
return new HuffmanCode<>(codes, tree, splitter, leftRightDecider);
}
private HuffmanNode<ContentType, SequenceType, FrequencyType> buildTree(Map<ContentType, FrequencyType> frequencies) {
PriorityQueue<HuffmanTree<ContentType, SequenceType, FrequencyType>> trees = new PriorityQueue<>();
for (Map.Entry<ContentType, FrequencyType> e : frequencies.entrySet()) {
if (e.getValue().isGreaterZero())
trees.offer(new HuffmanLeaf<>(e.getValue(), e.getKey()));
}
while (trees.size() > 1) {
HuffmanTree a = trees.poll();
HuffmanTree b = trees.poll();
trees.offer(new HuffmanNode<ContentType, SequenceType, FrequencyType>(a, b));
}
return (HuffmanNode<ContentType, SequenceType, FrequencyType>) trees.poll();
}
private void generateCodes(HuffmanTree<ContentType, SequenceType, FrequencyType> child) {
if (child == null)
throw new IllegalArgumentException(new NullPointerException());
if (child instanceof HuffmanLeaf) {
HuffmanLeaf<ContentType, SequenceType, FrequencyType> leaf = (HuffmanLeaf<ContentType, SequenceType, FrequencyType>) child;
codes.put(leaf.getValue(), leaf.getCode());
} else if (child instanceof HuffmanNode) {
HuffmanNode<ContentType, SequenceType, FrequencyType> node = (HuffmanNode<ContentType, SequenceType, FrequencyType>) child;
// traverse left
HuffmanTree<ContentType, SequenceType, FrequencyType> left = node.getLeft();
SequenceType leftCode = combiner.apply(child.getCode(), leftGlyph.get());
left.setCode(leftCode);
generateCodes(left);
// traverse right
HuffmanTree<ContentType, SequenceType, FrequencyType> right = node.getRight();
SequenceType rightCode = combiner.apply(child.getCode(), rightGlyph.get());
right.setCode(rightCode);
generateCodes(right);
}
}
}
src/main/java/markov/huffman/HuffmanLeaf.java deleted 100644 → 0
package markov.huffman;
class HuffmanLeaf<ContentType, SequenceType, FrequencyType extends FrequenceType<FrequencyType>> extends
HuffmanTree<ContentType, SequenceType, FrequencyType> {
private final ContentType value; // the character this leaf represents
ContentType getValue() {
return value;
}
HuffmanLeaf(FrequencyType freq, ContentType val) {
super(freq);
value = val;
}
}
src/main/java/markov/huffman/HuffmanNode.java deleted 100644 → 0
package markov.huffman;
class HuffmanNode<ContentType, SequenceType, FrequencyType extends FrequenceType<FrequencyType>>
extends HuffmanTree<ContentType, SequenceType, FrequencyType> {
private final HuffmanTree<ContentType, SequenceType, FrequencyType> left;
private final HuffmanTree<ContentType, SequenceType, FrequencyType> right;
HuffmanTree<ContentType, SequenceType, FrequencyType> getLeft() {
return left;
}
HuffmanTree<ContentType, SequenceType, FrequencyType> getRight() {
return right;
}
HuffmanNode(HuffmanTree<ContentType, SequenceType, FrequencyType> l,
HuffmanTree<ContentType, SequenceType, FrequencyType> r) {
super(l.getFrequency().add(r.getFrequency()));
left = l;
right = r;
}
}
src/main/java/markov/huffman/HuffmanTree.java deleted 100644 → 0
package markov.huffman;
abstract class HuffmanTree<ContentType, SequenceType, FrequencyType extends FrequenceType<FrequencyType>>
implements Comparable<HuffmanTree<ContentType, SequenceType, FrequencyType>> {
private final FrequencyType frequency;
private SequenceType code = null;
HuffmanTree(FrequencyType freq) {
frequency = freq;
}
FrequencyType getFrequency() {
return frequency;
}
public SequenceType getCode() {
return code;
}
public void setCode(SequenceType code) {
this.code = code;
}
@Override
public int compareTo(HuffmanTree<ContentType, SequenceType, FrequencyType> o) {
return this.frequency.compareTo(o.frequency);
}
}
src/main/java/markov/stuff/SimpleCountMap.java
package markov.stuff;
import markov.huffman.FrequenceType;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Stream;
public class SimpleCountMap<T> extends HashMap<T, SimpleCountMap.MutableInt> implements CountMap<T> {
public static class MutableInt implements FrequenceType<MutableInt>, Serializable {
private int value = 1;
public MutableInt(int value) {
this.value = value;
}
public void increment() {
++value;
}
public int get() {
return value;
}
@Override
public MutableInt add(MutableInt b) {
return new MutableInt(get() + b.get());
}
@Override
public boolean isGreaterZero() {
return get() > 0;
}
@Override
public int compareTo(MutableInt o) {
return Integer.compare(get(), o.get());
}
}
public class SimpleCountMap<T> extends HashMap<T, SimpleCountMap.MutableInt>
implements CountMap<T> {
public SimpleCountMap(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor);
}
public SimpleCountMap(int initialCapacity) {
super(initialCapacity);
}
......@@ -66,11 +35,49 @@ public class SimpleCountMap<T> extends HashMap<T, SimpleCountMap.MutableInt> imp
@Override
public Stream<Map.Entry<T, MutableInt>> result() {
return entrySet().stream().sorted((e1, e2) -> Integer.compare(e2.getValue().get(), e1.getValue().get()));
return entrySet().stream().sorted((e1, e2) -> Integer.compare(e2.getValue().get(),
e1.getValue().get()));
}
@Override
public HashMap<T, MutableInt> asMap() {
return this;
}
public static class MutableInt implements Serializable {
private int value = 1;
public MutableInt(int value) {
this.value = value;
}
public void increment() {
++value;
}
public int get() {
return value;
}
public static class FrequencySupport
implements directory.passive.huffman.FrequencySupport<MutableInt> {
@Override
public MutableInt add(
MutableInt mutableInt, MutableInt x1) {
return new MutableInt(mutableInt.get() + x1.get());
}
@Override
public int compare(MutableInt mutableInt, MutableInt x1) {
return Integer.compare(mutableInt.get(), x1.get());
}
@Override
public boolean isGreaterZero(MutableInt mutableInt) {
return mutableInt.get() > 0;
}
}
}
}
\ No newline at end of file
src/test/java/markov/stuff/BitConverterTest.java
......@@ -4,13 +4,15 @@ import org.junit.jupiter.api.Disabled;
import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Tag;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.SplittableRandom;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertIterableEquals;
......@@ -20,8 +22,43 @@ import static org.junit.jupiter.api.Assertions.assertTrue;
class BitConverterTest {
private byte[] convert(Boolean... booleans) {
BitConverter converter = new BitConverter();
List<Boolean> empty = Arrays.asList(booleans);
return converter.toBytes(empty);
}
private List<Boolean> convert(byte... bytes) {
BitConverter converter = new BitConverter();
return converter.toBits(bytes);
}
@Nested
class Both {
@Disabled
@Tag("long")
@Tag("smoke")
@ParameterizedTest
@ValueSource(ints = 10_000)
void firstN(int max) throws IOException, InterruptedException {
BitConverter converter = new BitConverter();
SplittableRandom r = new SplittableRandom();
for (int i = 1; i < max; i++) {
List<Boolean> list = r.ints(i, 0, 2)
.mapToObj(n -> n == 0 ? Boolean.FALSE : Boolean.TRUE)
.collect(Collectors.toList());
List<Boolean> second = converter.toBits(converter.toBytes(converter.toBits(converter
.toBytes(list))));
assertNotSame(list, second);
assertEquals(list, second);
}
}
}
@Nested
public class toBytes {
class toBytes {
@Test
void convertEmpty() {
......@@ -33,7 +70,6 @@ class BitConverterTest {
@Test
void convert0() {
Utils.toByteArray(1);
byte[] convertedEmpty = convert(Boolean.FALSE);
assertEquals(1, convertedEmpty.length);
assertEquals(0b00000100, convertedEmpty[0]);
......@@ -41,7 +77,6 @@ class BitConverterTest {
@Test
void convert1() {
Utils.toByteArray(1);
byte[] convertedEmpty = convert(Boolean.TRUE);
assertEquals(1, convertedEmpty.length);
assertEquals(0b00001100, convertedEmpty[0]);
......@@ -49,14 +84,24 @@ class BitConverterTest {
@Test
void convert16() {
byte[] convertedEmpty = convert(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE);
byte[] convertedEmpty = convert(
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE);
assertEquals(1, convertedEmpty.length);
assertEquals((byte) 0b10000000, convertedEmpty[0]);
}
@Test
void convert31() {
byte[] convertedEmpty = convert(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE);
byte[] convertedEmpty = convert(
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE);
assertEquals(1, convertedEmpty.length);
assertEquals((byte) 0b11111000, convertedEmpty[0]);
}
......@@ -64,7 +109,12 @@ class BitConverterTest {
@Test
void convert32() {
byte[] convertedEmpty = convert(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b00000001, convertedEmpty[0]);
assertEquals((byte) 0b00000001, convertedEmpty[1]);
......@@ -72,7 +122,12 @@ class BitConverterTest {
@Test
void convert63() {
byte[] convertedEmpty = convert(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b11111001, convertedEmpty[0]);
assertEquals((byte) 0b00000001, convertedEmpty[1]);
......@@ -80,7 +135,13 @@ class BitConverterTest {
@Test
void convert127() {
byte[] convertedEmpty = convert(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b11111010, convertedEmpty[0]);
assertEquals((byte) 0b00000011, convertedEmpty[1]);
......@@ -88,7 +149,13 @@ class BitConverterTest {
@Test
void convert128() {
byte[] convertedEmpty = convert(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b00000010, convertedEmpty[0]);
assertEquals((byte) 0b00000010, convertedEmpty[1]);
......@@ -96,7 +163,19 @@ class BitConverterTest {
@Test
void convert4k() {
byte[] convertedEmpty = convert(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b00000000, convertedEmpty[0]);
assertEquals((byte) 0b10000000, convertedEmpty[1]);
......@@ -104,7 +183,19 @@ class BitConverterTest {
@Test
void convert8k_1() {
byte[] convertedEmpty = convert(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE);
assertEquals(2, convertedEmpty.length);
assertEquals((byte) 0b11111000, convertedEmpty[0]);
assertEquals((byte) 0b11111111, convertedEmpty[1]);
......@@ -112,7 +203,20 @@ class BitConverterTest {
@Test
void convert16k_1() {
byte[] convertedEmpty = convert(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE);
byte[] convertedEmpty = convert(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE);
assertEquals(3, convertedEmpty.length);
assertEquals((byte) 0b11111001, convertedEmpty[0]);
assertEquals((byte) 0b11111111, convertedEmpty[1]);
......@@ -121,7 +225,7 @@ class BitConverterTest {
}
@Nested
public class toBits {
class toBits {
@Test
void convertEmpty() {
byte[] bytes = new byte[0];
......@@ -139,33 +243,43 @@ class BitConverterTest {
@Test
void convertOneByteWithNotEmptyWorks() {
List<Boolean> result = convert((byte) 0b100);
assertIterableEquals(Arrays.asList(Boolean.FALSE), result);
assertIterableEquals(Collections.singletonList(Boolean.FALSE), result);
result = convert((byte) 0b101);
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE), result);
result = convert((byte) 0b110);
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE), result);
assertIterableEquals(
Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE),
result);
result = convert((byte) 0b111);
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE), result);
assertIterableEquals(
Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE),
result);
result = convert((byte) 0b0);
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE), result);
assertIterableEquals(
Arrays.asList(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE),
result);
}
@Test
void convert0() {
List<Boolean> result = convert((byte) 0b00000100);
assertEquals(1, result.size());
assertIterableEquals(Arrays.asList(Boolean.FALSE), result);
assertIterableEquals(Collections.singletonList(Boolean.FALSE), result);
}
@Test
void convert1() {
List<Boolean> result = convert((byte) 0b00001100);
assertEquals(1, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE), result);
assertIterableEquals(Collections.singletonList(Boolean.TRUE), result);
}
@Test
......@@ -173,7 +287,13 @@ class BitConverterTest {
List<Boolean> result = convert((byte) 0b10000000);
assertEquals(5, result.size());
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE), result);
assertIterableEquals(
Arrays.asList(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE),
result);
}
......@@ -182,7 +302,11 @@ class BitConverterTest {
List<Boolean> result = convert((byte) 0b11111000);
assertEquals(5, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE), result);
}
......@@ -190,14 +314,24 @@ class BitConverterTest {
void convert32() {
List<Boolean> result = convert((byte) 0b00000001, (byte) 0b00000001);
assertEquals(6, result.size());
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE), result);
}
@Test
void convert63() {
List<Boolean> result = convert((byte) 0b11111001, (byte) 0b00000001);
assertEquals(6, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE), result);
}
......@@ -205,7 +339,13 @@ class BitConverterTest {
void convert127() {
List<Boolean> result = convert((byte) 0b11111010, (byte) 0b00000011);
assertEquals(7, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE), result);
}
......@@ -213,7 +353,13 @@ class BitConverterTest {
void convert128() {
List<Boolean> result = convert((byte) 0b00000010, (byte) 0b00000010);
assertEquals(7, result.size());
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE), result);
}
......@@ -221,14 +367,38 @@ class BitConverterTest {
void convert4k() {
List<Boolean> result = convert((byte) 0b00000000, (byte) 0b10000000);
assertEquals(13, result.size());
assertIterableEquals(Arrays.asList(Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.FALSE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.FALSE,
Boolean.TRUE), result);
}
@Test
void convert8k_1() {
List<Boolean> result = convert((byte) 0b11111000, (byte) 0b11111111);
assertEquals(13, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE), result);
assertIterableEquals(Arrays.asList(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE), result);
}
......@@ -236,51 +406,22 @@ class BitConverterTest {
void convert16k_1() {
List<Boolean> result = convert((byte) 0b11111001, (byte) 0b11111111, (byte) 0b00000001);
assertEquals(14, result.size());
assertIterableEquals(Arrays.asList(Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE, Boolean.TRUE), result);
}
assertIterableEquals(Arrays.asList(Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE,
Boolean.TRUE), result);
}
public static void main(String[] args) throws IOException, InterruptedException {
System.in.read();
System.out.println("here we go");
new Both().firstN();
}
@Nested
public static class Both {
@Test
@Disabled
@Tag("long")
void firstN() throws IOException, InterruptedException {
BitConverter converter = new BitConverter();
SplittableRandom r = new SplittableRandom();
final int N = 10_000_000;
// IntStream.range(6, N).boxed().forEach(i -> {
List<Boolean> list = IntStream.range(0, 50).mapToObj(n -> (n % 2 == 0)? Boolean.TRUE : Boolean.FALSE).collect(Collectors.toList());
for(int i=1; i<N; i++) {
// List<Boolean> list = r.ints(i, 0, 2)
// .mapToObj(n -> n == 0 ? Boolean.FALSE : Boolean.TRUE).collect(Collectors.toList());
// List<Boolean> list = IntStream.range(0, i).mapToObj(n -> (n % 2 == 0)? Boolean.TRUE : Boolean.FALSE).collect(Collectors.toList());
List<Boolean> second = converter.toBits(converter.toBytes(converter.toBits(converter.toBytes(list))));
assertNotSame(list, second);
assertEquals(list, second);
}
// );
}
}
private byte[] convert(Boolean... booleans) {
BitConverter converter = new BitConverter();
List<Boolean> empty = Arrays.asList(booleans);
return converter.toBytes(empty);
}
private List<Boolean> convert(byte... bytes) {
BitConverter converter = new BitConverter();
return converter.toBits(bytes);
}
}
\ No newline at end of file
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