/
BooleanArrayStack.java
executable file
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/
BooleanArrayStack.java
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/*
* 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.stack.mutable.primitive;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.EmptyStackException;
import net.jcip.annotations.NotThreadSafe;
import org.eclipse.collections.api.BooleanIterable;
import org.eclipse.collections.api.LazyBooleanIterable;
import org.eclipse.collections.api.bag.primitive.MutableBooleanBag;
import org.eclipse.collections.api.block.function.primitive.BooleanToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectBooleanIntToObjectFunction;
import org.eclipse.collections.api.block.function.primitive.ObjectBooleanToObjectFunction;
import org.eclipse.collections.api.block.predicate.primitive.BooleanPredicate;
import org.eclipse.collections.api.block.procedure.primitive.BooleanIntProcedure;
import org.eclipse.collections.api.block.procedure.primitive.BooleanProcedure;
import org.eclipse.collections.api.iterator.BooleanIterator;
import org.eclipse.collections.api.iterator.MutableBooleanIterator;
import org.eclipse.collections.api.list.primitive.BooleanList;
import org.eclipse.collections.api.list.primitive.MutableBooleanList;
import org.eclipse.collections.api.set.primitive.MutableBooleanSet;
import org.eclipse.collections.api.stack.MutableStack;
import org.eclipse.collections.api.stack.primitive.BooleanStack;
import org.eclipse.collections.api.stack.primitive.ImmutableBooleanStack;
import org.eclipse.collections.api.stack.primitive.MutableBooleanStack;
import org.eclipse.collections.impl.bag.mutable.primitive.BooleanHashBag;
import org.eclipse.collections.impl.factory.primitive.BooleanStacks;
import org.eclipse.collections.impl.iterator.UnmodifiableBooleanIterator;
import org.eclipse.collections.impl.lazy.primitive.LazyBooleanIterableAdapter;
import org.eclipse.collections.impl.list.mutable.primitive.BooleanArrayList;
import org.eclipse.collections.impl.set.mutable.primitive.BooleanHashSet;
import org.eclipse.collections.impl.stack.mutable.ArrayStack;
/**
* BooleanArrayStack is similar to {@link ArrayStack}, and is memory-optimized for boolean primitives.
*/
@NotThreadSafe
public final class BooleanArrayStack implements MutableBooleanStack, Externalizable
{
private static final long serialVersionUID = 1L;
private transient BooleanArrayList delegate;
public BooleanArrayStack()
{
this.delegate = new BooleanArrayList();
}
private BooleanArrayStack(int size)
{
this.delegate = new BooleanArrayList(size);
}
private BooleanArrayStack(boolean... items)
{
this.delegate = new BooleanArrayList(items);
}
public static BooleanArrayStack newStackFromTopToBottom(boolean... items)
{
BooleanArrayStack stack = new BooleanArrayStack(items.length);
for (int i = items.length - 1; i >= 0; i--)
{
stack.push(items[i]);
}
return stack;
}
public static BooleanArrayStack newStackWith(boolean... items)
{
return new BooleanArrayStack(items);
}
public static BooleanArrayStack newStack(BooleanIterable items)
{
BooleanArrayStack stack = new BooleanArrayStack(items.size());
stack.delegate = BooleanArrayList.newList(items);
return stack;
}
public static BooleanArrayStack newStackFromTopToBottom(BooleanIterable items)
{
BooleanArrayStack stack = new BooleanArrayStack(items.size());
stack.delegate = BooleanArrayList.newList(items).reverseThis();
return stack;
}
@Override
public void push(boolean item)
{
this.delegate.add(item);
}
@Override
public boolean pop()
{
this.checkEmptyStack();
return this.delegate.removeAtIndex(this.delegate.size() - 1);
}
private void checkEmptyStack()
{
if (this.delegate.isEmpty())
{
throw new EmptyStackException();
}
}
@Override
public BooleanList pop(int count)
{
this.checkPositiveValueForCount(count);
this.checkSizeLessThanCount(count);
if (count == 0)
{
return new BooleanArrayList(0);
}
MutableBooleanList subList = new BooleanArrayList(count);
while (count > 0)
{
subList.add(this.pop());
count--;
}
return subList;
}
private void checkPositiveValueForCount(int count)
{
if (count < 0)
{
throw new IllegalArgumentException("Count must be positive but was " + count);
}
}
private void checkSizeLessThanCount(int count)
{
if (this.delegate.size() < count)
{
throw new IllegalArgumentException("Count must be less than size: Count = " + count + " Size = " + this.delegate.size());
}
}
@Override
public MutableBooleanStack select(BooleanPredicate predicate)
{
return BooleanArrayStack.newStackFromTopToBottom(this.delegate.asReversed().select(predicate));
}
@Override
public MutableBooleanStack reject(BooleanPredicate predicate)
{
return BooleanArrayStack.newStackFromTopToBottom(this.delegate.asReversed().reject(predicate));
}
@Override
public MutableBooleanStack asUnmodifiable()
{
return new UnmodifiableBooleanStack(this);
}
@Override
public MutableBooleanStack asSynchronized()
{
return new SynchronizedBooleanStack(this);
}
@Override
public ImmutableBooleanStack toImmutable()
{
return BooleanStacks.immutable.withAll(this.delegate);
}
@Override
public boolean peek()
{
this.checkEmptyStack();
return this.delegate.getLast();
}
@Override
public BooleanList peek(int count)
{
this.checkPositiveValueForCount(count);
this.checkSizeLessThanCount(count);
if (count == 0)
{
return new BooleanArrayList(0);
}
MutableBooleanList subList = new BooleanArrayList(count);
int index = this.delegate.size() - 1;
for (int i = 0; i < count; i++)
{
subList.add(this.delegate.get(index - i));
}
return subList;
}
@Override
public boolean peekAt(int index)
{
this.rangeCheck(index);
return this.delegate.get(this.delegate.size() - 1 - index);
}
private void rangeCheck(int index)
{
if (index < 0 || index > this.delegate.size() - 1)
{
throw new IllegalArgumentException("Index " + index + " out of range.Should be between 0 and " + (this.delegate.size() - 1));
}
}
@Override
public MutableBooleanIterator booleanIterator()
{
return new UnmodifiableBooleanIterator(this.delegate.asReversed().booleanIterator());
}
@Override
public void forEach(BooleanProcedure procedure)
{
this.each(procedure);
}
/**
* @since 7.0.
*/
@Override
public void each(BooleanProcedure procedure)
{
this.delegate.asReversed().forEach(procedure);
}
@Override
public int size()
{
return this.delegate.size();
}
@Override
public boolean isEmpty()
{
return this.delegate.isEmpty();
}
@Override
public boolean notEmpty()
{
return this.delegate.notEmpty();
}
@Override
public int count(BooleanPredicate predicate)
{
return this.delegate.asReversed().count(predicate);
}
@Override
public boolean anySatisfy(BooleanPredicate predicate)
{
return this.delegate.asReversed().anySatisfy(predicate);
}
@Override
public boolean allSatisfy(BooleanPredicate predicate)
{
return this.delegate.asReversed().allSatisfy(predicate);
}
@Override
public boolean noneSatisfy(BooleanPredicate predicate)
{
return this.delegate.asReversed().noneSatisfy(predicate);
}
@Override
public boolean detectIfNone(BooleanPredicate predicate, boolean ifNone)
{
return this.delegate.asReversed().detectIfNone(predicate, ifNone);
}
@Override
public <V> MutableStack<V> collect(BooleanToObjectFunction<? extends V> function)
{
return ArrayStack.newStackFromTopToBottom(this.delegate.asReversed().collect(function));
}
@Override
public <V> V injectInto(V injectedValue, ObjectBooleanToObjectFunction<? super V, ? extends V> function)
{
return this.delegate.asReversed().injectInto(injectedValue, function);
}
@Override
public boolean[] toArray()
{
return this.delegate.asReversed().toArray();
}
@Override
public boolean contains(boolean value)
{
return this.delegate.asReversed().contains(value);
}
@Override
public boolean containsAll(boolean... source)
{
return this.delegate.asReversed().containsAll(source);
}
@Override
public boolean containsAll(BooleanIterable source)
{
return this.delegate.asReversed().containsAll(source);
}
@Override
public void clear()
{
this.delegate.clear();
}
@Override
public boolean equals(Object otherStack)
{
if (otherStack == this)
{
return true;
}
if (!(otherStack instanceof BooleanStack))
{
return false;
}
BooleanStack stack = (BooleanStack) otherStack;
if (this.size() != stack.size())
{
return false;
}
for (int i = 0; i < this.size(); i++)
{
if (this.peekAt(i) != stack.peekAt(i))
{
return false;
}
}
return true;
}
@Override
public int hashCode()
{
int hashCode = 1;
for (int i = this.size() - 1; i >= 0; i--)
{
boolean item = this.delegate.get(i);
hashCode = 31 * hashCode + (item ? 1231 : 1237);
}
return hashCode;
}
@Override
public String toString()
{
return this.delegate.asReversed().toString();
}
@Override
public String makeString()
{
return this.delegate.asReversed().makeString();
}
@Override
public String makeString(String separator)
{
return this.delegate.asReversed().makeString(separator);
}
@Override
public String makeString(String start, String separator, String end)
{
return this.delegate.asReversed().makeString(start, separator, end);
}
@Override
public void appendString(Appendable appendable)
{
this.delegate.asReversed().appendString(appendable);
}
@Override
public void appendString(Appendable appendable, String separator)
{
this.delegate.asReversed().appendString(appendable, separator);
}
@Override
public void appendString(
Appendable appendable,
String start,
String separator,
String end)
{
this.delegate.asReversed().appendString(appendable, start, separator, end);
}
@Override
public boolean getFirst()
{
throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".getFirst() not implemented yet");
}
@Override
public int indexOf(boolean value)
{
throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".indexOf() not implemented yet");
}
@Override
public <T> T injectIntoWithIndex(T injectedValue, ObjectBooleanIntToObjectFunction<? super T, ? extends T> function)
{
throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".injectIntoWithIndex() not implemented yet");
}
@Override
public void forEachWithIndex(BooleanIntProcedure procedure)
{
throw new UnsupportedOperationException(this.getClass().getSimpleName() + ".forEachWithIndex() not implemented yet");
}
@Override
public MutableBooleanList toList()
{
return BooleanArrayList.newList(this);
}
@Override
public MutableBooleanSet toSet()
{
return BooleanHashSet.newSet(this);
}
@Override
public MutableBooleanBag toBag()
{
return BooleanHashBag.newBag(this);
}
@Override
public LazyBooleanIterable asLazy()
{
return new LazyBooleanIterableAdapter(this);
}
@Override
public void writeExternal(ObjectOutput out) throws IOException
{
out.writeInt(this.size());
BooleanIterator iterator = this.delegate.asReversed().booleanIterator();
while (iterator.hasNext())
{
boolean each = iterator.next();
out.writeBoolean(each);
}
}
@Override
public void readExternal(ObjectInput in) throws IOException
{
int size = in.readInt();
boolean[] array = new boolean[size];
for (int i = size - 1; i >= 0; i--)
{
array[i] = in.readBoolean();
}
this.delegate = BooleanArrayList.newListWith(array);
}
}