java/compiler/openapi/src/com/intellij/packaging/elements/CompositePackagingElementType.java

/*
 * Copyright 2000-2009 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 com.intellij.packaging.elements;

import com.intellij.packaging.artifacts.Artifact;
import com.intellij.packaging.ui.ArtifactEditorContext;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Collections;
import java.util.List;

/**
 * @author nik
 */
public abstract class CompositePackagingElementType<E extends CompositePackagingElement<?>> extends PackagingElementType<E> {
  protected CompositePackagingElementType(@NotNull @NonNls String id, @NotNull String presentableName) {
    super(id, presentableName);
  }

  @Override
  public boolean canCreate(@NotNull ArtifactEditorContext context, @NotNull Artifact artifact) {
    return true;
  }


  @Nullable
  public abstract CompositePackagingElement<?> createComposite(CompositePackagingElement<?> parent, @Nullable String baseName, @NotNull ArtifactEditorContext context);

  @NotNull
  public List<? extends PackagingElement<?>> chooseAndCreate(@NotNull ArtifactEditorContext context, @NotNull Artifact artifact, @NotNull CompositePackagingElement<?> parent) {
    final PackagingElement<?> composite = createComposite(parent, null, context);
    return composite != null ? Collections.singletonList(composite) : Collections.<E>emptyList();
  }
}