/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* 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 org.neo4j.driver.internal.value;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import org.neo4j.driver.internal.types.InternalTypeSystem;
import org.neo4j.driver.internal.util.Extract;
import org.neo4j.driver.v1.util.Function;
import org.neo4j.driver.v1.types.Type;
import org.neo4j.driver.v1.Value;
import org.neo4j.driver.v1.Values;
import static org.neo4j.driver.internal.util.Format.formatElements;
import static org.neo4j.driver.internal.value.InternalValue.Format.VALUE_ONLY;
import static org.neo4j.driver.v1.Values.ofObject;
public class ListValue extends ValueAdapter
{
private final Value[] values;
public ListValue( Value... values )
{
if ( values == null )
{
throw new IllegalArgumentException( "Cannot construct ListValue from null" );
}
this.values = values;
}
@Override
public boolean isEmpty()
{
return values.length == 0;
}
@Override
public List<Object> asObject()
{
return asList( ofObject() );
}
@Override
public List<Object> asList()
{
return Extract.list( values, ofObject() );
}
@Override
public <T> List<T> asList( Function<Value,T> mapFunction )
{
return Extract.list( values, mapFunction );
}
@Override
public int size()
{
return values.length;
}
@Override
public Value get( int index )
{
return index >= 0 && index < values.length ? values[index] : Values.NULL;
}
@Override
public <T> Iterable<T> values( final Function<Value,T> mapFunction )
{
return new Iterable<T>()
{
@Override
public Iterator<T> iterator()
{
return new Iterator<T>()
{
private int cursor = 0;
@Override
public boolean hasNext()
{
return cursor < values.length;
}
@Override
public T next()
{
return mapFunction.apply( values[cursor++] );
}
@Override
public void remove()
{
}
};
}
};
}
@Override
public String asLiteralString()
{
return toString( VALUE_ONLY );
}
@Override
public Type type()
{
return InternalTypeSystem.TYPE_SYSTEM.LIST();
}
@Override
public String toString( Format valueFormat )
{
return maybeWithType(
valueFormat.includeType(),
formatElements( valueFormat.inner(), values )
);
}
@Override
public boolean equals( Object o )
{
if ( this == o )
{
return true;
}
if ( o == null || getClass() != o.getClass() )
{
return false;
}
ListValue otherValues = (ListValue) o;
return Arrays.equals( values, otherValues.values );
}
@Override
public int hashCode()
{
return Arrays.hashCode( values );
}
}