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MapMatcher.java
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MapMatcher.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cypher.feature.parser.matchers;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
public class MapMatcher implements ValueMatcher
{
public static final MapMatcher EMPTY = new MapMatcher( Collections.emptyMap() );
private final Map<String,ValueMatcher> map;
public MapMatcher( Map<String,ValueMatcher> map )
{
this.map = map;
}
@Override
public boolean matches( Object value )
{
if ( value instanceof Map )
{
Map realMap = (Map) value;
Set<String> expectedKeys = map.keySet();
Set actualKeys = realMap.keySet();
if ( expectedKeys.equals( actualKeys ) )
{
for ( Map.Entry<String,ValueMatcher> entry : map.entrySet() )
{
if ( !entry.getValue().matches( realMap.get( entry.getKey() ) ) )
{
return false;
}
}
return true;
}
}
return false;
}
@Override
public String toString()
{
return map.toString();
}
}