com.google.eclipse.protobuf.ui/src/com/google/eclipse/protobuf/ui/editor/model/DocumentContentsFactoryRegistry.java

/*
 * Copyright (c) 2011 Google Inc.
 *
 * All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse
 * Public License v1.0 which accompanies this distribution, and is available at
 *
 * http://www.eclipse.org/legal/epl-v10.html
 */
package com.google.eclipse.protobuf.ui.editor.model;

import java.util.List;

import org.eclipse.ui.IEditorInput;

import com.google.common.collect.Lists;
import com.google.inject.Inject;

/**
 * @author alruiz@google.com (Alex Ruiz)
 */
class DocumentContentsFactoryRegistry {
  private final List<DocumentContentsFactory> factories;

  @Inject
  DocumentContentsFactoryRegistry(FileStoreDocumentContentsFactory f1, UriDocumentContentsFactory f2) {
    factories = Lists.newArrayList(f1, f2);
  }

  DocumentContentsFactory findFactory(Object element) {
    if (element instanceof IEditorInput) {
      IEditorInput input = (IEditorInput) element;
      for (DocumentContentsFactory factory : factories) {
        if (factory.supportsEditorInputType(input)) {
          return factory;
        }
      }
    }
    return null;
  }
}