platform/platform-impl/src/com/intellij/idea/CommandLineApplication.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.idea;

import com.intellij.ide.impl.DataManagerImpl;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.application.ex.ApplicationManagerEx;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.util.UserDataHolderBase;
import com.intellij.openapi.vfs.impl.local.FileWatcher;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;

import java.awt.*;

public class CommandLineApplication {
  private static final Logger LOG = Logger.getInstance("#com.intellij.idea.CommandLineApplication");
  protected static CommandLineApplication ourInstance = null;

  static {
    System.setProperty(FileWatcher.PROPERTY_WATCHER_DISABLED, Boolean.TRUE.toString());

    /*
    final Category category = Category.getRoot();
    final Enumeration enumeration = category.getAllAppenders();
    while (enumeration.hasMoreElements()) {
      Object o = enumeration.nextElement();
      if (o instanceof DialogAppender) {
        category.removeAppender((Appender)o);
        break;
      }
    }
    */
  }

  protected CommandLineApplication() {}

  protected CommandLineApplication(boolean isInternal, boolean isUnitTestMode, boolean isHeadless) {
    this(isInternal, isUnitTestMode, isHeadless, "idea");
  }

  protected CommandLineApplication(boolean isInternal, boolean isUnitTestMode, boolean isHeadless, @NotNull @NonNls String appName) {
    LOG.assertTrue(ourInstance == null, "Only one instance allowed.");
    ourInstance = this;
    ApplicationManagerEx.createApplication(isInternal, isUnitTestMode, isHeadless, true, appName, null);
  }

  public Object getData(String dataId) {
    return null;
  }

  public static class MyDataManagerImpl extends DataManagerImpl {
    @Override
    @NotNull
    public DataContext getDataContext() {
      return new CommandLineDataContext();
    }

    @Override
    public DataContext getDataContext(Component component) {
      return getDataContext();
    }

    @Override
    public DataContext getDataContext(@NotNull Component component, int x, int y) {
      return getDataContext();
    }

    private static class CommandLineDataContext extends UserDataHolderBase implements DataContext {
      @Override
      public Object getData(String dataId) {
        return ourInstance.getData(dataId);
      }
    }
  }
}