org.eclipse.collections.impl.map.immutable.ImmutableQuadrupletonMap Maven / Gradle / Ivy
/*
* Copyright (c) 2016 Goldman Sachs.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompany this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.eclipse.collections.impl.map.immutable;
import java.io.Serializable;
import java.util.Collection;
import java.util.Map;
import java.util.Set;
import org.eclipse.collections.api.RichIterable;
import org.eclipse.collections.api.block.function.Function2;
import org.eclipse.collections.api.block.predicate.Predicate2;
import org.eclipse.collections.api.block.procedure.Procedure;
import org.eclipse.collections.api.block.procedure.Procedure2;
import org.eclipse.collections.api.block.procedure.primitive.ObjectIntProcedure;
import org.eclipse.collections.api.map.ImmutableMap;
import org.eclipse.collections.api.tuple.Pair;
import org.eclipse.collections.impl.block.factory.Comparators;
import org.eclipse.collections.impl.block.factory.Predicates2;
import org.eclipse.collections.impl.factory.Lists;
import org.eclipse.collections.impl.factory.Maps;
import org.eclipse.collections.impl.factory.Sets;
import org.eclipse.collections.impl.tuple.Tuples;
final class ImmutableQuadrupletonMap
extends AbstractImmutableMap
implements Serializable
{
private static final long serialVersionUID = 1L;
private final K key1;
private final V value1;
private final K key2;
private final V value2;
private final K key3;
private final V value3;
private final K key4;
private final V value4;
ImmutableQuadrupletonMap(K key1, V value1, K key2, V value2, K key3, V value3, K key4, V value4)
{
this.key1 = key1;
this.value1 = value1;
this.key2 = key2;
this.value2 = value2;
this.key3 = key3;
this.value3 = value3;
this.key4 = key4;
this.value4 = value4;
}
@Override
public RichIterable keysView()
{
return Lists.immutable.with(this.key1, this.key2, this.key3, this.key4).asLazy();
}
@Override
public RichIterable valuesView()
{
return Lists.immutable.with(this.value1, this.value2, this.value3, this.value4).asLazy();
}
@Override
public RichIterable> keyValuesView()
{
return Lists.immutable.with(
Tuples.pair(this.key1, this.value1),
Tuples.pair(this.key2, this.value2),
Tuples.pair(this.key3, this.value3),
Tuples.pair(this.key4, this.value4)).asLazy();
}
@Override
public int size()
{
return 4;
}
@Override
public boolean containsKey(Object key)
{
return Comparators.nullSafeEquals(this.key4, key)
|| Comparators.nullSafeEquals(this.key3, key)
|| Comparators.nullSafeEquals(this.key2, key)
|| Comparators.nullSafeEquals(this.key1, key);
}
@Override
public boolean containsValue(Object value)
{
return Comparators.nullSafeEquals(this.value4, value)
|| Comparators.nullSafeEquals(this.value3, value)
|| Comparators.nullSafeEquals(this.value2, value)
|| Comparators.nullSafeEquals(this.value1, value);
}
@Override
public V get(Object key)
{
if (Comparators.nullSafeEquals(this.key4, key))
{
return this.value4;
}
if (Comparators.nullSafeEquals(this.key3, key))
{
return this.value3;
}
if (Comparators.nullSafeEquals(this.key2, key))
{
return this.value2;
}
if (Comparators.nullSafeEquals(this.key1, key))
{
return this.value1;
}
return null;
}
@Override
public Set keySet()
{
return Sets.immutable.with(this.key1, this.key2, this.key3, this.key4).castToSet();
}
@Override
public Collection values()
{
return Lists.immutable.with(this.value1, this.value2, this.value3, this.value4).castToList();
}
@Override
public int hashCode()
{
return this.keyAndValueHashCode(this.key1, this.value1)
+ this.keyAndValueHashCode(this.key2, this.value2)
+ this.keyAndValueHashCode(this.key3, this.value3)
+ this.keyAndValueHashCode(this.key4, this.value4);
}
@Override
public boolean equals(Object other)
{
if (!(other instanceof Map))
{
return false;
}
Map that = (Map) other;
return that.size() == this.size()
&& this.keyAndValueEquals(this.key1, this.value1, that)
&& this.keyAndValueEquals(this.key2, this.value2, that)
&& this.keyAndValueEquals(this.key3, this.value3, that)
&& this.keyAndValueEquals(this.key4, this.value4, that);
}
@Override
public String toString()
{
return "{"
+ this.key1 + '=' + this.value1 + ", "
+ this.key2 + '=' + this.value2 + ", "
+ this.key3 + '=' + this.value3 + ", "
+ this.key4 + '=' + this.value4 + '}';
}
@Override
public ImmutableMap flipUniqueValues()
{
return Maps.immutable.with(this.value1, this.key1, this.value2, this.key2, this.value3, this.key3, this.value4, this.key4);
}
@Override
public void forEachKeyValue(Procedure2 procedure)
{
procedure.value(this.key1, this.value1);
procedure.value(this.key2, this.value2);
procedure.value(this.key3, this.value3);
procedure.value(this.key4, this.value4);
}
@Override
public void forEachKey(Procedure procedure)
{
procedure.value(this.key1);
procedure.value(this.key2);
procedure.value(this.key3);
procedure.value(this.key4);
}
@Override
public void forEachValue(Procedure procedure)
{
procedure.value(this.value1);
procedure.value(this.value2);
procedure.value(this.value3);
procedure.value(this.value4);
}
@Override
public void forEachWithIndex(ObjectIntProcedure objectIntProcedure)
{
objectIntProcedure.value(this.value1, 0);
objectIntProcedure.value(this.value2, 1);
objectIntProcedure.value(this.value3, 2);
objectIntProcedure.value(this.value4, 3);
}
@Override
public void forEachWith(Procedure2 procedure, P parameter)
{
procedure.value(this.value1, parameter);
procedure.value(this.value2, parameter);
procedure.value(this.value3, parameter);
procedure.value(this.value4, parameter);
}
@Override
public ImmutableMap collect(Function2> function)
{
Pair pair1 = function.value(this.key1, this.value1);
Pair pair2 = function.value(this.key2, this.value2);
Pair pair3 = function.value(this.key3, this.value3);
Pair pair4 = function.value(this.key4, this.value4);
return Maps.immutable.with(pair1.getOne(), pair1.getTwo(), pair2.getOne(), pair2.getTwo(), pair3.getOne(), pair3.getTwo(), pair4.getOne(), pair4.getTwo());
}
@Override
public ImmutableMap collectValues(Function2 function)
{
return Maps.immutable.with(
this.key1, function.value(this.key1, this.value1),
this.key2, function.value(this.key2, this.value2),
this.key3, function.value(this.key3, this.value3),
this.key4, function.value(this.key4, this.value4));
}
@Override
public Pair detect(Predicate2 predicate)
{
if (predicate.accept(this.key1, this.value1))
{
return Tuples.pair(this.key1, this.value1);
}
if (predicate.accept(this.key2, this.value2))
{
return Tuples.pair(this.key2, this.value2);
}
if (predicate.accept(this.key3, this.value3))
{
return Tuples.pair(this.key3, this.value3);
}
if (predicate.accept(this.key4, this.value4))
{
return Tuples.pair(this.key4, this.value4);
}
return null;
}
@Override
public ImmutableMap select(Predicate2 predicate)
{
return this.filter(predicate);
}
@Override
public ImmutableMap reject(Predicate2 predicate)
{
return this.filter(Predicates2.not(predicate));
}
@Override
public V getOnly()
{
throw new IllegalStateException("Size must be 1 but was " + this.size());
}
private ImmutableMap filter(Predicate2 predicate)
{
int result = 0;
if (predicate.accept(this.key1, this.value1))
{
result |= 1;
}
if (predicate.accept(this.key2, this.value2))
{
result |= 2;
}
if (predicate.accept(this.key3, this.value3))
{
result |= 4;
}
if (predicate.accept(this.key4, this.value4))
{
result |= 8;
}
switch (result)
{
case 1:
return Maps.immutable.with(this.key1, this.value1);
case 2:
return Maps.immutable.with(this.key2, this.value2);
case 3:
return Maps.immutable.with(this.key1, this.value1, this.key2, this.value2);
case 4:
return Maps.immutable.with(this.key3, this.value3);
case 5:
return Maps.immutable.with(this.key1, this.value1, this.key3, this.value3);
case 6:
return Maps.immutable.with(this.key2, this.value2, this.key3, this.value3);
case 7:
return Maps.immutable.with(this.key1, this.value1, this.key2, this.value2, this.key3, this.value3);
case 8:
return Maps.immutable.with(this.key4, this.value4);
case 9:
return Maps.immutable.with(this.key1, this.value1, this.key4, this.value4);
case 10:
return Maps.immutable.with(this.key2, this.value2, this.key4, this.value4);
case 11:
return Maps.immutable.with(this.key1, this.value1, this.key2, this.value2, this.key4, this.value4);
case 12:
return Maps.immutable.with(this.key3, this.value3, this.key4, this.value4);
case 13:
return Maps.immutable.with(this.key1, this.value1, this.key3, this.value3, this.key4, this.value4);
case 14:
return Maps.immutable.with(this.key2, this.value2, this.key3, this.value3, this.key4, this.value4);
case 15:
return Maps.immutable.with(this.key1, this.value1, this.key2, this.value2, this.key3, this.value3, this.key4, this.value4);
default:
return Maps.immutable.empty();
}
}
private Object writeReplace()
{
return new ImmutableMapSerializationProxy<>(this);
}
}