com.gs.collections.impl.map.mutable.primitive.DoubleCharHashMap Maven / Gradle / Ivy
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/*
* Copyright 2014 Goldman Sachs.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.gs.collections.impl.map.mutable.primitive;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Arrays;
import java.util.Iterator;
import java.util.NoSuchElementException;
import com.gs.collections.api.DoubleIterable;
import com.gs.collections.api.LazyDoubleIterable;
import com.gs.collections.api.CharIterable;
import com.gs.collections.api.RichIterable;
import com.gs.collections.api.block.function.primitive.DoubleToCharFunction;
import com.gs.collections.api.block.function.primitive.CharFunction;
import com.gs.collections.api.block.function.primitive.CharFunction0;
import com.gs.collections.api.block.function.primitive.CharToCharFunction;
import com.gs.collections.api.block.function.primitive.ObjectCharToObjectFunction;
import com.gs.collections.api.block.predicate.primitive.DoubleCharPredicate;
import com.gs.collections.api.block.procedure.Procedure;
import com.gs.collections.api.block.procedure.Procedure2;
import com.gs.collections.api.block.procedure.primitive.DoubleProcedure;
import com.gs.collections.api.block.procedure.primitive.DoubleCharProcedure;
import com.gs.collections.api.block.procedure.primitive.ObjectIntProcedure;
import com.gs.collections.impl.SpreadFunctions;
import com.gs.collections.api.collection.primitive.MutableCharCollection;
import com.gs.collections.api.iterator.DoubleIterator;
import com.gs.collections.api.iterator.MutableDoubleIterator;
import com.gs.collections.api.iterator.MutableCharIterator;
import com.gs.collections.api.map.primitive.DoubleCharMap;
import com.gs.collections.api.map.primitive.ImmutableDoubleCharMap;
import com.gs.collections.api.map.primitive.MutableDoubleCharMap;
import com.gs.collections.api.set.primitive.DoubleSet;
import com.gs.collections.api.set.primitive.CharSet;
import com.gs.collections.api.set.primitive.MutableDoubleSet;
import com.gs.collections.api.tuple.primitive.DoubleCharPair;
import com.gs.collections.impl.factory.primitive.DoubleCharMaps;
import com.gs.collections.impl.iterator.UnmodifiableDoubleIterator;
import com.gs.collections.impl.lazy.AbstractLazyIterable;
import com.gs.collections.impl.lazy.primitive.AbstractLazyDoubleIterable;
import com.gs.collections.impl.set.mutable.primitive.DoubleHashSet;
import com.gs.collections.impl.tuple.primitive.PrimitiveTuples;
/**
* This file was automatically generated from template file primitivePrimitiveHashMap.stg.
*
* @since 3.0.
*/
public class DoubleCharHashMap extends AbstractMutableCharValuesMap implements MutableDoubleCharMap, Externalizable, MutableDoubleKeysMap
{
private static final char EMPTY_VALUE = (char) 0;
private static final long serialVersionUID = 1L;
private static final double EMPTY_KEY = 0.0;
private static final double REMOVED_KEY = 1.0;
private static final int CACHE_LINE_SIZE = 64;
private static final int KEY_SIZE = 8;
private static final int INITIAL_LINEAR_PROBE = CACHE_LINE_SIZE / KEY_SIZE / 2; /* half a cache line */
private static final int DEFAULT_INITIAL_CAPACITY = 8;
private double[] keys;
private char[] values;
private int occupiedWithData;
private int occupiedWithSentinels;
private SentinelValues sentinelValues;
private boolean copyKeysOnWrite;
public DoubleCharHashMap()
{
this.allocateTable(DEFAULT_INITIAL_CAPACITY << 1);
}
public DoubleCharHashMap(int initialCapacity)
{
if (initialCapacity < 0)
{
throw new IllegalArgumentException("initial capacity cannot be less than 0");
}
int capacity = this.smallestPowerOfTwoGreaterThan(initialCapacity << 1);
this.allocateTable(capacity);
}
public DoubleCharHashMap(DoubleCharMap map)
{
if (map instanceof DoubleCharHashMap && ((DoubleCharHashMap) map).occupiedWithSentinels == 0)
{
DoubleCharHashMap hashMap = (DoubleCharHashMap) map;
this.occupiedWithData = hashMap.occupiedWithData;
if (hashMap.sentinelValues != null)
{
this.sentinelValues = hashMap.sentinelValues.copy();
}
this.keys = Arrays.copyOf(hashMap.keys, hashMap.keys.length);
this.values = Arrays.copyOf(hashMap.values, hashMap.values.length);
}
else
{
int capacity = this.smallestPowerOfTwoGreaterThan(Math.max(map.size(), DEFAULT_INITIAL_CAPACITY) << 1);
this.allocateTable(capacity);
this.putAll(map);
}
}
public static DoubleCharHashMap newWithKeysValues(double key1, char value1)
{
return new DoubleCharHashMap(1).withKeyValue(key1, value1);
}
public static DoubleCharHashMap newWithKeysValues(double key1, char value1, double key2, char value2)
{
return new DoubleCharHashMap(2).withKeysValues(key1, value1, key2, value2);
}
public static DoubleCharHashMap newWithKeysValues(double key1, char value1, double key2, char value2, double key3, char value3)
{
return new DoubleCharHashMap(3).withKeysValues(key1, value1, key2, value2, key3, value3);
}
public static DoubleCharHashMap newWithKeysValues(double key1, char value1, double key2, char value2, double key3, char value3, double key4, char value4)
{
return new DoubleCharHashMap(4).withKeysValues(key1, value1, key2, value2, key3, value3, key4, value4);
}
private int smallestPowerOfTwoGreaterThan(int n)
{
return n > 1 ? Integer.highestOneBit(n - 1) << 1 : 1;
}
@Override
protected int getOccupiedWithData()
{
return this.occupiedWithData;
}
@Override
protected SentinelValues getSentinelValues()
{
return this.sentinelValues;
}
@Override
protected void setSentinelValuesNull()
{
this.sentinelValues = null;
}
@Override
protected char getEmptyValue()
{
return EMPTY_VALUE;
}
@Override
protected int getTableSize()
{
return this.values.length;
}
@Override
protected char getValueAtIndex(int index)
{
return this.values[index];
}
@Override
public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (!(obj instanceof DoubleCharMap))
{
return false;
}
DoubleCharMap other = (DoubleCharMap) obj;
if (this.size() != other.size())
{
return false;
}
if (this.sentinelValues == null)
{
if (other.containsKey(EMPTY_KEY) || other.containsKey(REMOVED_KEY))
{
return false;
}
}
else
{
if (this.sentinelValues.containsZeroKey && (!other.containsKey(EMPTY_KEY) || this.sentinelValues.zeroValue != other.getOrThrow(EMPTY_KEY)))
{
return false;
}
if (this.sentinelValues.containsOneKey && (!other.containsKey(REMOVED_KEY) || this.sentinelValues.oneValue != other.getOrThrow(REMOVED_KEY)))
{
return false;
}
}
for (int i = 0; i < this.keys.length; i++)
{
double key = this.keys[i];
if (isNonSentinel(key) && (!other.containsKey(key) || this.values[i] != other.getOrThrow(key)))
{
return false;
}
}
return true;
}
@Override
public int hashCode()
{
int result = 0;
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
result += (int) (Double.doubleToLongBits(EMPTY_KEY) ^ Double.doubleToLongBits(EMPTY_KEY) >>> 32) ^ (int) this.sentinelValues.zeroValue;
}
if (this.sentinelValues.containsOneKey)
{
result += (int) (Double.doubleToLongBits(REMOVED_KEY) ^ Double.doubleToLongBits(REMOVED_KEY) >>> 32) ^ (int) this.sentinelValues.oneValue;
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]))
{
result += (int) (Double.doubleToLongBits(this.keys[i]) ^ Double.doubleToLongBits(this.keys[i]) >>> 32) ^ (int) this.values[i];
}
}
return result;
}
@Override
public String toString()
{
StringBuilder appendable = new StringBuilder();
appendable.append("{");
boolean first = true;
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
appendable.append(EMPTY_KEY).append("=").append(this.sentinelValues.zeroValue);
first = false;
}
if (this.sentinelValues.containsOneKey)
{
if (!first)
{
appendable.append(", ");
}
appendable.append(REMOVED_KEY).append("=").append(this.sentinelValues.oneValue);
first = false;
}
}
for (int i = 0; i < this.keys.length; i++)
{
double key = this.keys[i];
if (isNonSentinel(key))
{
if (!first)
{
appendable.append(", ");
}
appendable.append(key).append("=").append(this.values[i]);
first = false;
}
}
appendable.append("}");
return appendable.toString();
}
public MutableCharIterator charIterator()
{
return new InternalCharIterator();
}
public V injectInto(V injectedValue, ObjectCharToObjectFunction function)
{
V result = injectedValue;
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
result = function.valueOf(result, this.sentinelValues.zeroValue);
}
if (this.sentinelValues.containsOneKey)
{
result = function.valueOf(result, this.sentinelValues.oneValue);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]))
{
result = function.valueOf(result, this.values[i]);
}
}
return result;
}
public void clear()
{
this.sentinelValues = null;
this.occupiedWithData = 0;
this.occupiedWithSentinels = 0;
if (this.copyKeysOnWrite)
{
this.copyKeys();
}
Arrays.fill(this.keys, EMPTY_KEY);
Arrays.fill(this.values, EMPTY_VALUE);
}
public void put(double key, char value)
{
if (isEmptyKey(key))
{
this.putForEmptySentinel(value);
return;
}
if (isRemovedKey(key))
{
this.putForRemovedSentinel(value);
return;
}
int index = this.probe(key);
double keyAtIndex = this.keys[index];
if (Double.compare(keyAtIndex, key) == 0)
{
this.values[index] = value;
}
else
{
this.addKeyValueAtIndex(key, value, index);
}
}
private void putForRemovedSentinel(char value)
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
}
this.addRemovedKeyValue(value);
}
private void putForEmptySentinel(char value)
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
}
this.addEmptyKeyValue(value);
}
public void putAll(DoubleCharMap map)
{
map.forEachKeyValue(new DoubleCharProcedure()
{
public void value(double key, char value)
{
DoubleCharHashMap.this.put(key, value);
}
});
}
public void removeKey(double key)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
{
return;
}
this.removeEmptyKey();
return;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
{
return;
}
this.removeRemovedKey();
return;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
this.removeKeyAtIndex(index);
}
}
public void remove(double key)
{
this.removeKey(key);
}
public char removeKeyIfAbsent(double key, char value)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
{
return value;
}
char oldValue = this.sentinelValues.zeroValue;
this.removeEmptyKey();
return oldValue;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
{
return value;
}
char oldValue = this.sentinelValues.oneValue;
this.removeRemovedKey();
return oldValue;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
char oldValue = this.values[index];
this.removeKeyAtIndex(index);
return oldValue;
}
return value;
}
public char getIfAbsentPut(double key, char value)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(value);
return value;
}
if (this.sentinelValues.containsZeroKey)
{
return this.sentinelValues.zeroValue;
}
this.addEmptyKeyValue(value);
return value;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(value);
return value;
}
if (this.sentinelValues.containsOneKey)
{
return this.sentinelValues.oneValue;
}
this.addRemovedKeyValue(value);
return value;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
this.addKeyValueAtIndex(key, value, index);
return value;
}
public char getIfAbsentPut(double key, CharFunction0 function)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
char value = function.value();
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(value);
return value;
}
if (this.sentinelValues.containsZeroKey)
{
return this.sentinelValues.zeroValue;
}
char value = function.value();
this.addEmptyKeyValue(value);
return value;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
char value = function.value();
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(value);
return value;
}
if (this.sentinelValues.containsOneKey)
{
return this.sentinelValues.oneValue;
}
char value = function.value();
this.addRemovedKeyValue(value);
return value;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
char value = function.value();
this.addKeyValueAtIndex(key, value, index);
return value;
}
public char getIfAbsentPutWith(double key, CharFunction function, P parameter)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
char value = function.charValueOf(parameter);
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(value);
return value;
}
if (this.sentinelValues.containsZeroKey)
{
return this.sentinelValues.zeroValue;
}
char value = function.charValueOf(parameter);
this.addEmptyKeyValue(value);
return value;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
char value = function.charValueOf(parameter);
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(value);
return value;
}
if (this.sentinelValues.containsOneKey)
{
return this.sentinelValues.oneValue;
}
char value = function.charValueOf(parameter);
this.addRemovedKeyValue(value);
return value;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
char value = function.charValueOf(parameter);
this.addKeyValueAtIndex(key, value, index);
return value;
}
public char getIfAbsentPutWithKey(double key, DoubleToCharFunction function)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
char value = function.valueOf(key);
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(value);
return value;
}
if (this.sentinelValues.containsZeroKey)
{
return this.sentinelValues.zeroValue;
}
char value = function.valueOf(key);
this.addEmptyKeyValue(value);
return value;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
char value = function.valueOf(key);
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(value);
return value;
}
if (this.sentinelValues.containsOneKey)
{
return this.sentinelValues.oneValue;
}
char value = function.valueOf(key);
this.addRemovedKeyValue(value);
return value;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
char value = function.valueOf(key);
this.addKeyValueAtIndex(key, value, index);
return value;
}
public char addToValue(double key, char toBeAdded)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(toBeAdded);
}
else if (this.sentinelValues.containsZeroKey)
{
this.sentinelValues.zeroValue += toBeAdded;
}
else
{
this.addEmptyKeyValue(toBeAdded);
}
return this.sentinelValues.zeroValue;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(toBeAdded);
}
else if (this.sentinelValues.containsOneKey)
{
this.sentinelValues.oneValue += toBeAdded;
}
else
{
this.addRemovedKeyValue(toBeAdded);
}
return this.sentinelValues.oneValue;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
this.values[index] += toBeAdded;
return this.values[index];
}
this.addKeyValueAtIndex(key, toBeAdded, index);
return this.values[index];
}
private void addKeyValueAtIndex(double key, char value, int index)
{
if (Double.compare(this.keys[index], REMOVED_KEY) == 0)
{
this.occupiedWithSentinels--;
}
if (this.copyKeysOnWrite)
{
this.copyKeys();
}
this.keys[index] = key;
this.values[index] = value;
this.occupiedWithData++;
if (this.occupiedWithData + this.occupiedWithSentinels > this.maxOccupiedWithData())
{
this.rehashAndGrow();
}
}
private void removeKeyAtIndex(int index)
{
if (this.copyKeysOnWrite)
{
this.copyKeys();
}
this.keys[index] = REMOVED_KEY;
this.values[index] = EMPTY_VALUE;
this.occupiedWithData--;
this.occupiedWithSentinels++;
}
private void copyKeys()
{
double[] copy = new double[this.keys.length];
System.arraycopy(this.keys, 0, copy, 0, this.keys.length);
this.keys = copy;
this.copyKeysOnWrite = false;
}
public char updateValue(double key, char initialValueIfAbsent, CharToCharFunction function)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addEmptyKeyValue(function.valueOf(initialValueIfAbsent));
}
else if (this.sentinelValues.containsZeroKey)
{
this.sentinelValues.zeroValue = function.valueOf(this.sentinelValues.zeroValue);
}
else
{
this.addEmptyKeyValue(function.valueOf(initialValueIfAbsent));
}
return this.sentinelValues.zeroValue;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null)
{
this.sentinelValues = new SentinelValues();
this.addRemovedKeyValue(function.valueOf(initialValueIfAbsent));
}
else if (this.sentinelValues.containsOneKey)
{
this.sentinelValues.oneValue = function.valueOf(this.sentinelValues.oneValue);
}
else
{
this.addRemovedKeyValue(function.valueOf(initialValueIfAbsent));
}
return this.sentinelValues.oneValue;
}
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
this.values[index] = function.valueOf(this.values[index]);
return this.values[index];
}
char value = function.valueOf(initialValueIfAbsent);
this.addKeyValueAtIndex(key, value, index);
return value;
}
public DoubleCharHashMap withKeyValue(double key1, char value1)
{
this.put(key1, value1);
return this;
}
public DoubleCharHashMap withKeysValues(double key1, char value1, double key2, char value2)
{
this.put(key1, value1);
this.put(key2, value2);
return this;
}
public DoubleCharHashMap withKeysValues(double key1, char value1, double key2, char value2, double key3, char value3)
{
this.put(key1, value1);
this.put(key2, value2);
this.put(key3, value3);
return this;
}
public DoubleCharHashMap withKeysValues(double key1, char value1, double key2, char value2, double key3, char value3, double key4, char value4)
{
this.put(key1, value1);
this.put(key2, value2);
this.put(key3, value3);
this.put(key4, value4);
return this;
}
public DoubleCharHashMap withoutKey(double key)
{
this.removeKey(key);
return this;
}
public DoubleCharHashMap withoutAllKeys(DoubleIterable keys)
{
keys.forEach(new DoubleProcedure()
{
public void value(double key)
{
DoubleCharHashMap.this.removeKey(key);
}
});
return this;
}
public MutableDoubleCharMap asUnmodifiable()
{
return new UnmodifiableDoubleCharMap(this);
}
public MutableDoubleCharMap asSynchronized()
{
return new SynchronizedDoubleCharMap(this);
}
public ImmutableDoubleCharMap toImmutable()
{
return DoubleCharMaps.immutable.ofAll(this);
}
public char get(double key)
{
return this.getIfAbsent(key, EMPTY_VALUE);
}
public char getIfAbsent(double key, char ifAbsent)
{
if (isEmptyKey(key) || isRemovedKey(key))
{
return this.getForSentinel(key, ifAbsent);
}
if (this.occupiedWithSentinels == 0)
{
return this.fastGetIfAbsent(key, ifAbsent);
}
return this.slowGetIfAbsent(key, ifAbsent);
}
private char getForSentinel(double key, char ifAbsent)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
{
return ifAbsent;
}
return this.sentinelValues.zeroValue;
}
if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
{
return ifAbsent;
}
return this.sentinelValues.oneValue;
}
private char slowGetIfAbsent(double key, char ifAbsent)
{
int index = this.probe(key);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
return ifAbsent;
}
private char fastGetIfAbsent(double key, char ifAbsent)
{
int index = this.mask((int) key);
for (int i = 0; i < INITIAL_LINEAR_PROBE; i++)
{
double keyAtIndex = this.keys[index];
if (Double.compare(keyAtIndex, key) == 0)
{
return this.values[index];
}
if (Double.compare(keyAtIndex, EMPTY_KEY) == 0)
{
return ifAbsent;
}
index = (index + 1) & (this.keys.length - 1);
}
return this.slowGetIfAbsentTwo(key, ifAbsent);
}
private char slowGetIfAbsentTwo(double key, char ifAbsent)
{
int index = this.probeTwo(key, -1);
if (Double.compare(this.keys[index], key) == 0)
{
return this.values[index];
}
return ifAbsent;
}
public char getOrThrow(double key)
{
if (isEmptyKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsZeroKey)
{
throw new IllegalStateException("Key " + key + " not present.");
}
return this.sentinelValues.zeroValue;
}
if (isRemovedKey(key))
{
if (this.sentinelValues == null || !this.sentinelValues.containsOneKey)
{
throw new IllegalStateException("Key " + key + " not present.");
}
return this.sentinelValues.oneValue;
}
int index = this.probe(key);
if (isNonSentinel(this.keys[index]))
{
return this.values[index];
}
throw new IllegalStateException("Key " + key + " not present.");
}
public boolean containsKey(double key)
{
if (isEmptyKey(key))
{
return this.sentinelValues != null && this.sentinelValues.containsZeroKey;
}
if (isRemovedKey(key))
{
return this.sentinelValues != null && this.sentinelValues.containsOneKey;
}
return Double.compare(this.keys[this.probe(key)], key) == 0;
}
public void forEachKey(DoubleProcedure procedure)
{
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
procedure.value(EMPTY_KEY);
}
if (this.sentinelValues.containsOneKey)
{
procedure.value(REMOVED_KEY);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]))
{
procedure.value(this.keys[i]);
}
}
}
public void forEachKeyValue(DoubleCharProcedure procedure)
{
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
procedure.value(EMPTY_KEY, this.sentinelValues.zeroValue);
}
if (this.sentinelValues.containsOneKey)
{
procedure.value(REMOVED_KEY, this.sentinelValues.oneValue);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]))
{
procedure.value(this.keys[i], this.values[i]);
}
}
}
public LazyDoubleIterable keysView()
{
return new KeysView();
}
public RichIterable keyValuesView()
{
return new KeyValuesView();
}
public DoubleCharHashMap select(DoubleCharPredicate predicate)
{
DoubleCharHashMap result = new DoubleCharHashMap();
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey && predicate.accept(EMPTY_KEY, this.sentinelValues.zeroValue))
{
result.put(EMPTY_KEY, this.sentinelValues.zeroValue);
}
if (this.sentinelValues.containsOneKey && predicate.accept(REMOVED_KEY, this.sentinelValues.oneValue))
{
result.put(REMOVED_KEY, this.sentinelValues.oneValue);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]) && predicate.accept(this.keys[i], this.values[i]))
{
result.put(this.keys[i], this.values[i]);
}
}
return result;
}
public DoubleCharHashMap reject(DoubleCharPredicate predicate)
{
DoubleCharHashMap result = new DoubleCharHashMap();
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey && !predicate.accept(EMPTY_KEY, this.sentinelValues.zeroValue))
{
result.put(EMPTY_KEY, this.sentinelValues.zeroValue);
}
if (this.sentinelValues.containsOneKey && !predicate.accept(REMOVED_KEY, this.sentinelValues.oneValue))
{
result.put(REMOVED_KEY, this.sentinelValues.oneValue);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]) && !predicate.accept(this.keys[i], this.values[i]))
{
result.put(this.keys[i], this.values[i]);
}
}
return result;
}
public void writeExternal(ObjectOutput out) throws IOException
{
out.writeInt(this.size());
if (this.sentinelValues != null)
{
if (this.sentinelValues.containsZeroKey)
{
out.writeDouble(EMPTY_KEY);
out.writeChar(this.sentinelValues.zeroValue);
}
if (this.sentinelValues.containsOneKey)
{
out.writeDouble(REMOVED_KEY);
out.writeChar(this.sentinelValues.oneValue);
}
}
for (int i = 0; i < this.keys.length; i++)
{
if (isNonSentinel(this.keys[i]))
{
out.writeDouble(this.keys[i]);
out.writeChar(this.values[i]);
}
}
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
{
int size = in.readInt();
for (int i = 0; i < size; i++)
{
this.put(in.readDouble(), in.readChar());
}
}
/**
* Rehashes every element in the set into a new backing table of the smallest possible size and eliminating removed sentinels.
*/
public void compact()
{
this.rehash(this.smallestPowerOfTwoGreaterThan(this.size()));
}
private void rehashAndGrow()
{
this.rehash(this.keys.length << 1);
}
private void rehash(int newCapacity)
{
int oldLength = this.keys.length;
double[] old = this.keys;
char[] oldValues = this.values;
this.allocateTable(newCapacity);
this.occupiedWithData = 0;
this.occupiedWithSentinels = 0;
for (int i = 0; i < oldLength; i++)
{
if (isNonSentinel(old[i]))
{
this.put(old[i], oldValues[i]);
}
}
}
// exposed for testing
int probe(double element)
{
int index = this.mask((int) element);
double keyAtIndex = this.keys[index];
if (Double.compare(keyAtIndex, element) == 0 || Double.compare(keyAtIndex, EMPTY_KEY) == 0)
{
return index;
}
int removedIndex = Double.compare(keyAtIndex, REMOVED_KEY) == 0 ? index : -1;
for (int i = 1; i < INITIAL_LINEAR_PROBE; i++)
{
int nextIndex = (index + i) & (this.keys.length - 1);
keyAtIndex = this.keys[nextIndex];
if (Double.compare(keyAtIndex, element) == 0)
{
return nextIndex;
}
if (Double.compare(keyAtIndex, EMPTY_KEY) == 0)
{
return removedIndex == -1 ? nextIndex : removedIndex;
}
if (Double.compare(keyAtIndex, REMOVED_KEY) == 0 && removedIndex == -1)
{
removedIndex = nextIndex;
}
}
return this.probeTwo(element, removedIndex);
}
int probeTwo(double element, int removedIndex)
{
int index = this.spreadTwoAndMask(element);
for (int i = 0; i < INITIAL_LINEAR_PROBE; i++)
{
int nextIndex = (index + i) & (this.keys.length - 1);
double keyAtIndex = this.keys[nextIndex];
if (Double.compare(keyAtIndex, element) == 0)
{
return nextIndex;
}
if (Double.compare(keyAtIndex, EMPTY_KEY) == 0)
{
return removedIndex == -1 ? nextIndex : removedIndex;
}
if (Double.compare(keyAtIndex, REMOVED_KEY) == 0 && removedIndex == -1)
{
removedIndex = nextIndex;
}
}
return this.probeThree(element, removedIndex);
}
int probeThree(double element, int removedIndex)
{
int nextIndex = (int) SpreadFunctions.doubleSpreadOne(element);
int spreadTwo = (int) Long.reverse(SpreadFunctions.doubleSpreadTwo(element)) | 1;
while (true)
{
nextIndex = this.mask(nextIndex + spreadTwo);
double keyAtIndex = this.keys[nextIndex];
if (Double.compare(keyAtIndex, element) == 0)
{
return nextIndex;
}
if (Double.compare(keyAtIndex, EMPTY_KEY) == 0)
{
return removedIndex == -1 ? nextIndex : removedIndex;
}
if (Double.compare(keyAtIndex, REMOVED_KEY) == 0 && removedIndex == -1)
{
removedIndex = nextIndex;
}
}
}
// exposed for testing
int spreadAndMask(double element)
{
long code = SpreadFunctions.doubleSpreadOne(element);
return this.mask((int) code);
}
int spreadTwoAndMask(double element)
{
long code = SpreadFunctions.doubleSpreadTwo(element);
return this.mask((int) code);
}
private int mask(int spread)
{
return spread & (this.keys.length - 1);
}
private void allocateTable(int sizeToAllocate)
{
this.keys = new double[sizeToAllocate];
this.values = new char[sizeToAllocate];
}
private static boolean isEmptyKey(double key)
{
return Double.compare(key, EMPTY_KEY) == 0;
}
private static boolean isRemovedKey(double key)
{
return Double.compare(key, REMOVED_KEY) == 0;
}
private static boolean isNonSentinel(double key)
{
return !isEmptyKey(key) && !isRemovedKey(key);
}
@Override
protected boolean isNonSentinelAtIndex(int index)
{
return !isEmptyKey(this.keys[index]) && !isRemovedKey(this.keys[index]);
}
private int maxOccupiedWithData()
{
return this.keys.length >> 1;
}
private int maxOccupiedWithSentinels()
{
return this.keys.length >> 2;
}
private class InternalCharIterator implements MutableCharIterator
{
private int count;
private int position;
private double lastKey;
private boolean handledZero;
private boolean handledOne;
private boolean canRemove;
public boolean hasNext()
{
return this.count < DoubleCharHashMap.this.size();
}
public char next()
{
if (!this.hasNext())
{
throw new NoSuchElementException("next() called, but the iterator is exhausted");
}
this.count++;
this.canRemove = true;
if (!this.handledZero)
{
this.handledZero = true;
if (DoubleCharHashMap.this.containsKey(EMPTY_KEY))
{
this.lastKey = EMPTY_KEY;
return DoubleCharHashMap.this.get(EMPTY_KEY);
}
}
if (!this.handledOne)
{
this.handledOne = true;
if (DoubleCharHashMap.this.containsKey(REMOVED_KEY))
{
this.lastKey = REMOVED_KEY;
return DoubleCharHashMap.this.get(REMOVED_KEY);
}
}
double[] keys = DoubleCharHashMap.this.keys;
while (!isNonSentinel(keys[this.position]))
{
this.position++;
}
this.lastKey = keys[this.position];
char result = DoubleCharHashMap.this.values[this.position];
this.position++;
return result;
}
public void remove()
{
if (!this.canRemove)
{
throw new IllegalStateException();
}
DoubleCharHashMap.this.removeKey(this.lastKey);
this.count--;
this.canRemove = false;
}
}
private class KeysView extends AbstractLazyDoubleIterable
{
public DoubleIterator doubleIterator()
{
return new UnmodifiableDoubleIterator(new KeySetIterator());
}
/**
* @since 7.0.
*/
public void each(DoubleProcedure procedure)
{
DoubleCharHashMap.this.forEachKey(procedure);
}
}
private class KeySetIterator implements MutableDoubleIterator
{
private int count;
private int position;
private double lastKey;
private boolean handledZero;
private boolean handledOne;
private boolean canRemove;
public boolean hasNext()
{
return this.count < DoubleCharHashMap.this.size();
}
public double next()
{
if (!this.hasNext())
{
throw new NoSuchElementException("next() called, but the iterator is exhausted");
}
this.count++;
this.canRemove = true;
if (!this.handledZero)
{
this.handledZero = true;
if (DoubleCharHashMap.this.containsKey(EMPTY_KEY))
{
this.lastKey = EMPTY_KEY;
return this.lastKey;
}
}
if (!this.handledOne)
{
this.handledOne = true;
if (DoubleCharHashMap.this.containsKey(REMOVED_KEY))
{
this.lastKey = REMOVED_KEY;
return this.lastKey;
}
}
double[] keys = DoubleCharHashMap.this.keys;
while (!isNonSentinel(keys[this.position]))
{
this.position++;
}
this.lastKey = keys[this.position];
this.position++;
return this.lastKey;
}
public void remove()
{
if (!this.canRemove)
{
throw new IllegalStateException();
}
DoubleCharHashMap.this.removeKey(this.lastKey);
this.count--;
this.canRemove = false;
}
}
public MutableDoubleSet keySet()
{
return new KeySet();
}
private class KeySet extends AbstractMutableDoubleKeySet
{
@Override
protected MutableDoubleKeysMap getOuter()
{
return DoubleCharHashMap.this;
}
@Override
protected SentinelValues getSentinelValues()
{
return DoubleCharHashMap.this.sentinelValues;
}
@Override
protected double getKeyAtIndex(int index)
{
return DoubleCharHashMap.this.keys[index];
}
@Override
protected int getTableSize()
{
return DoubleCharHashMap.this.keys.length;
}
public MutableDoubleIterator doubleIterator()
{
return new KeySetIterator();
}
public boolean retainAll(DoubleIterable source)
{
int oldSize = DoubleCharHashMap.this.size();
final DoubleSet sourceSet = source instanceof DoubleSet ? (DoubleSet) source : source.toSet();
DoubleCharHashMap retained = DoubleCharHashMap.this.select(new DoubleCharPredicate()
{
public boolean accept(double key, char value)
{
return sourceSet.contains(key);
}
});
if (retained.size() != oldSize)
{
DoubleCharHashMap.this.keys = retained.keys;
DoubleCharHashMap.this.values = retained.values;
DoubleCharHashMap.this.sentinelValues = retained.sentinelValues;
DoubleCharHashMap.this.occupiedWithData = retained.occupiedWithData;
DoubleCharHashMap.this.occupiedWithSentinels = retained.occupiedWithSentinels;
return true;
}
return false;
}
public boolean retainAll(double... source)
{
return this.retainAll(DoubleHashSet.newSetWith(source));
}
public DoubleSet freeze()
{
DoubleCharHashMap.this.copyKeysOnWrite = true;
boolean containsZeroKey = false;
boolean containsOneKey = false;
if (DoubleCharHashMap.this.sentinelValues != null)
{
containsZeroKey = DoubleCharHashMap.this.sentinelValues.containsZeroKey;
containsOneKey = DoubleCharHashMap.this.sentinelValues.containsOneKey;
}
return new ImmutableDoubleMapKeySet(DoubleCharHashMap.this.keys, DoubleCharHashMap.this.occupiedWithData, containsZeroKey, containsOneKey);
}
}
public MutableCharCollection values()
{
return new ValuesCollection();
}
private class ValuesCollection extends AbstractCharValuesCollection
{
public MutableCharIterator charIterator()
{
return DoubleCharHashMap.this.charIterator();
}
public boolean remove(char item)
{
int oldSize = DoubleCharHashMap.this.size();
if (DoubleCharHashMap.this.sentinelValues != null)
{
if (DoubleCharHashMap.this.sentinelValues.containsZeroKey && item == DoubleCharHashMap.this.sentinelValues.zeroValue)
{
DoubleCharHashMap.this.removeKey(EMPTY_KEY);
}
if (DoubleCharHashMap.this.sentinelValues.containsOneKey && item == DoubleCharHashMap.this.sentinelValues.oneValue)
{
DoubleCharHashMap.this.removeKey(REMOVED_KEY);
}
}
for (int i = 0; i < DoubleCharHashMap.this.keys.length; i++)
{
if (isNonSentinel(DoubleCharHashMap.this.keys[i]) && item == DoubleCharHashMap.this.values[i])
{
DoubleCharHashMap.this.removeKey(DoubleCharHashMap.this.keys[i]);
}
}
return oldSize != DoubleCharHashMap.this.size();
}
public boolean retainAll(CharIterable source)
{
int oldSize = DoubleCharHashMap.this.size();
final CharSet sourceSet = source instanceof CharSet ? (CharSet) source : source.toSet();
DoubleCharHashMap retained = DoubleCharHashMap.this.select(new DoubleCharPredicate()
{
public boolean accept(double key, char value)
{
return sourceSet.contains(value);
}
});
if (retained.size() != oldSize)
{
DoubleCharHashMap.this.keys = retained.keys;
DoubleCharHashMap.this.values = retained.values;
DoubleCharHashMap.this.sentinelValues = retained.sentinelValues;
DoubleCharHashMap.this.occupiedWithData = retained.occupiedWithData;
DoubleCharHashMap.this.occupiedWithSentinels = retained.occupiedWithSentinels;
return true;
}
return false;
}
}
private class KeyValuesView extends AbstractLazyIterable
{
public void each(Procedure procedure)
{
if (DoubleCharHashMap.this.sentinelValues != null)
{
if (DoubleCharHashMap.this.sentinelValues.containsZeroKey)
{
procedure.value(PrimitiveTuples.pair(EMPTY_KEY, DoubleCharHashMap.this.sentinelValues.zeroValue));
}
if (DoubleCharHashMap.this.sentinelValues.containsOneKey)
{
procedure.value(PrimitiveTuples.pair(REMOVED_KEY, DoubleCharHashMap.this.sentinelValues.oneValue));
}
}
for (int i = 0; i < DoubleCharHashMap.this.keys.length; i++)
{
if (isNonSentinel(DoubleCharHashMap.this.keys[i]))
{
procedure.value(PrimitiveTuples.pair(DoubleCharHashMap.this.keys[i], DoubleCharHashMap.this.values[i]));
}
}
}
public void forEachWithIndex(ObjectIntProcedure objectIntProcedure)
{
int index = 0;
if (DoubleCharHashMap.this.sentinelValues != null)
{
if (DoubleCharHashMap.this.sentinelValues.containsZeroKey)
{
objectIntProcedure.value(PrimitiveTuples.pair(EMPTY_KEY, DoubleCharHashMap.this.sentinelValues.zeroValue), index);
index++;
}
if (DoubleCharHashMap.this.sentinelValues.containsOneKey)
{
objectIntProcedure.value(PrimitiveTuples.pair(REMOVED_KEY, DoubleCharHashMap.this.sentinelValues.oneValue), index);
index++;
}
}
for (int i = 0; i < DoubleCharHashMap.this.keys.length; i++)
{
if (isNonSentinel(DoubleCharHashMap.this.keys[i]))
{
objectIntProcedure.value(PrimitiveTuples.pair(DoubleCharHashMap.this.keys[i], DoubleCharHashMap.this.values[i]), index);
index++;
}
}
}
public void forEachWith(Procedure2 procedure, P parameter)
{
if (DoubleCharHashMap.this.sentinelValues != null)
{
if (DoubleCharHashMap.this.sentinelValues.containsZeroKey)
{
procedure.value(PrimitiveTuples.pair(EMPTY_KEY, DoubleCharHashMap.this.sentinelValues.zeroValue), parameter);
}
if (DoubleCharHashMap.this.sentinelValues.containsOneKey)
{
procedure.value(PrimitiveTuples.pair(REMOVED_KEY, DoubleCharHashMap.this.sentinelValues.oneValue), parameter);
}
}
for (int i = 0; i < DoubleCharHashMap.this.keys.length; i++)
{
if (isNonSentinel(DoubleCharHashMap.this.keys[i]))
{
procedure.value(PrimitiveTuples.pair(DoubleCharHashMap.this.keys[i], DoubleCharHashMap.this.values[i]), parameter);
}
}
}
public Iterator iterator()
{
return new InternalKeyValuesIterator();
}
public class InternalKeyValuesIterator implements Iterator
{
private int count;
private int position;
private boolean handledZero;
private boolean handledOne;
public DoubleCharPair next()
{
if (!this.hasNext())
{
throw new NoSuchElementException("next() called, but the iterator is exhausted");
}
this.count++;
if (!this.handledZero)
{
this.handledZero = true;
if (DoubleCharHashMap.this.containsKey(EMPTY_KEY))
{
return PrimitiveTuples.pair(EMPTY_KEY, DoubleCharHashMap.this.sentinelValues.zeroValue);
}
}
if (!this.handledOne)
{
this.handledOne = true;
if (DoubleCharHashMap.this.containsKey(REMOVED_KEY))
{
return PrimitiveTuples.pair(REMOVED_KEY, DoubleCharHashMap.this.sentinelValues.oneValue);
}
}
double[] keys = DoubleCharHashMap.this.keys;
while (!isNonSentinel(keys[this.position]))
{
this.position++;
}
DoubleCharPair result = PrimitiveTuples.pair(keys[this.position], DoubleCharHashMap.this.values[this.position]);
this.position++;
return result;
}
public void remove()
{
throw new UnsupportedOperationException("Cannot call remove() on " + this.getClass().getSimpleName());
}
public boolean hasNext()
{
return this.count != DoubleCharHashMap.this.size();
}
}
}
}