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AccessModeSnapshot.java
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AccessModeSnapshot.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 org.neo4j.kernel.impl.api.security;
import org.neo4j.graphdb.security.AuthorizationViolationException;
import org.neo4j.kernel.api.security.AccessMode;
public class AccessModeSnapshot implements AccessMode
{
private final boolean allowsReads;
private final boolean allowsWrites;
private final boolean allowsSchemaWrites;
private final boolean overrideOriginalMode;
private final AccessMode originalMode;
public static AccessMode create( AccessMode accessMode )
{
// TODO: Use flyweight pattern instead of always creating new objects, when we have a proper
// security context and do not need to obtain the original mode through this object
return new AccessModeSnapshot( accessMode );
}
private AccessModeSnapshot( AccessMode accessMode )
{
allowsReads = accessMode.allowsReads();
allowsWrites = accessMode.allowsWrites();
allowsSchemaWrites = accessMode.allowsSchemaWrites();
overrideOriginalMode = accessMode.overrideOriginalMode();
// We use this for delegation of all the remaining methods
this.originalMode = accessMode;
}
//---------------------------------------
// Snapshot permissions
@Override
public boolean allowsReads()
{
return allowsReads;
}
@Override
public boolean allowsWrites()
{
return allowsWrites;
}
@Override
public boolean allowsSchemaWrites()
{
return allowsSchemaWrites;
}
@Override
public boolean overrideOriginalMode()
{
return overrideOriginalMode;
}
//---------------------------------------
// Delegate remaining methods to original
@Override
public AuthorizationViolationException onViolation( String msg )
{
return originalMode.onViolation( msg );
}
@Override
public String name()
{
return originalMode.name();
}
@Override
public String username()
{
return originalMode.username();
}
@Override
public AccessMode getOriginalAccessMode()
{
return originalMode.getOriginalAccessMode();
}
@Override
public AccessMode getSnapshot()
{
return this;
}
}