ModelRootSettingsEP.java

/*
 * Copyright 2003-2012 JetBrains s.r.o.
 *
 * Licensed 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.
 */
package jetbrains.mps.ide.persistence;

import com.intellij.openapi.extensions.AbstractExtensionPointBean;
import com.intellij.openapi.util.LazyInstance;
import com.intellij.util.KeyedLazyInstance;
import com.intellij.util.xmlb.annotations.Attribute;

/**
 * evgeny, 10/24/12
 */
public class ModelRootSettingsEP extends AbstractExtensionPointBean implements KeyedLazyInstance<ModelRootSettingsEditorProvider> {
  @Attribute("rootType")
  public String rootType;
  @Attribute("className")
  public String className;


  @Override
  public String getKey() {
    return rootType;
  }

  private final LazyInstance<ModelRootSettingsEditorProvider> myProvider = new LazyInstance<ModelRootSettingsEditorProvider>() {
    @Override
    protected Class<ModelRootSettingsEditorProvider> getInstanceClass() throws ClassNotFoundException {
      return findClass(className);
    }
  };

  @Override
  public ModelRootSettingsEditorProvider getInstance() {
    return myProvider.getValue();
  }
}