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 *   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
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package org.apache.cayenne.project;

import org.apache.cayenne.configuration.BaseConfigurationNodeVisitor;
import org.apache.cayenne.configuration.DataChannelDescriptor;
import org.apache.cayenne.configuration.DataNodeDescriptor;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.resource.Resource;

/**
 * Updates ConfigurationNode's configuration sources.
 * 
 * @since 3.1
 */
class ConfigurationSourceSetter extends BaseConfigurationNodeVisitor<Void> {

    private Resource configurationSource;

    ConfigurationSourceSetter(Resource configurationSource) {
        this.configurationSource = configurationSource;
    }

    @Override
    public Void visitDataChannelDescriptor(DataChannelDescriptor node) {
        node.setConfigurationSource(configurationSource);

        // update child configurations
        for (DataNodeDescriptor childDescriptor : node.getNodeDescriptors()) {
            childDescriptor.setDataChannelDescriptor(node);
            childDescriptor.setConfigurationSource(configurationSource);
        }
        return null;
    }

    @Override
    public Void visitDataMap(DataMap node) {
        node.setConfigurationSource(configurationSource);
        return null;
    }
}