/*****************************************************************
 *   Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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.
 ****************************************************************/

#import "CAYNodeIdChangeOperation.h"
#import "CAYPersistentObject.h"
#import "CAYObjectId.h"
#import "CAYObjectStore.h"

@implementation CAYNodeIdChangeOperation

-(id)initWithCoder:(NSCoder*)coder
{
	[super initWithCoder:coder];
    [self setNewNodeId:[coder decodeObjectForKey:@"newNodeId"]];
	return self;
}

-(void)encodeWithCoder:(NSCoder*)coder
{
    [super encodeWithCoder:coder];
	[coder encodeObject:newNodeId forKey:@"newNodeId"];
}

-(void)setNewNodeId:(NSObject *)nid
{
    [nid retain];
    [newNodeId release];
    newNodeId = nid;
}

-(NSObject *)newNodeId
{
    return newNodeId;
}

-(void)apply:(CAYObjectStore *)objectStore
{
    CAYPersistentObject *o = [objectStore objectForId:(CAYObjectId *)[self nodeId]];
    if(o)
    {
        [o setObjectId:(CAYObjectId *)[self newNodeId]];
        [objectStore setObject:o forId:(CAYObjectId *)[self newNodeId]];
        [objectStore removeObjectForId:(CAYObjectId *)[self nodeId]];
        NSLog(@"DEBUG: object after %@: %@", self, o);
    }
    else
    {
        NSLog(@"ERROR: not able to find object with id %@", [self nodeId]);
    }
}


-(NSString *)description
{
    NSString *result;
    result = [[NSString alloc] initWithFormat:@"CAYNodeIdChangeOperation {nodeId = %@; newNodeId = %@}", [self nodeId], [self newNodeId]];
    [result autorelease];
    return result;
}

-(void)dealloc
{
	[self setNewNodeId:nil];
	[super dealloc];
}


@end