org.apache.cayenne.modeler.graph.extension.GraphExtension Maven / Gradle / Ivy
/*****************************************************************
* 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
*
* https://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.apache.cayenne.modeler.graph.extension;
import org.apache.cayenne.configuration.ConfigurationNodeVisitor;
import org.apache.cayenne.configuration.DataChannelDescriptor;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.di.Provider;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.graph.GraphRegistry;
import org.apache.cayenne.project.Project;
import org.apache.cayenne.project.extension.BaseNamingDelegate;
import org.apache.cayenne.project.extension.LoaderDelegate;
import org.apache.cayenne.project.extension.ProjectExtension;
import org.apache.cayenne.project.extension.SaverDelegate;
/**
* @since 4.1
*/
public class GraphExtension implements ProjectExtension {
static final String NAMESPACE = "http://cayenne.apache.org/schema/" + Project.VERSION + "/graph";
static final String GRAPH_SUFFIX = ".graph.xml";
@Inject
protected Provider applicationProvider;
@Override
public LoaderDelegate createLoaderDelegate() {
return new GraphLoaderDelegate(applicationProvider.get());
}
@Override
public SaverDelegate createSaverDelegate() {
return new GraphSaverDelegate(applicationProvider.get().getMetaData());
}
@Override
public ConfigurationNodeVisitor createNamingDelegate() {
return new BaseNamingDelegate() {
@Override
public String visitDataChannelDescriptor(DataChannelDescriptor channelDescriptor) {
// if there is no registry, than there is no need to save anything
GraphRegistry registry = applicationProvider.get().getMetaData()
.get(channelDescriptor, GraphRegistry.class);
if (registry == null) {
return null;
}
return channelDescriptor.getName() + GRAPH_SUFFIX;
}
};
}
}