| /* |
| * Copyright (c) 2014, 2015 Eike Stepper (Berlin, Germany) and others. |
| * 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 |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| * Christian W. Damus (CEA LIST) - bug 418454 |
| */ |
| package org.eclipse.oomph.util; |
| |
| /** |
| * Various static helper methods. |
| * |
| * @author Eike Stepper |
| */ |
| public final class ObjectUtil |
| { |
| private ObjectUtil() |
| { |
| } |
| |
| public static boolean equals(Object o1, Object o2) |
| { |
| if (o1 == null) |
| { |
| return o2 == null; |
| } |
| |
| return o1.equals(o2); |
| } |
| |
| public static int hashCode(Object o) |
| { |
| if (o == null) |
| { |
| return 0; |
| } |
| |
| return o.hashCode(); |
| } |
| |
| public static <TYPE> TYPE adapt(Object object, Class<TYPE> type) |
| { |
| if (object == null) |
| { |
| return null; |
| } |
| |
| Object adapter = null; |
| if (type.isInstance(object)) |
| { |
| adapter = object; |
| } |
| else |
| { |
| try |
| { |
| adapter = AdaptableHelper.adapt(object, type); |
| if (adapter == null) |
| { |
| adapter = AdapterManagerHelper.adapt(object, type); |
| } |
| } |
| catch (Throwable ignore) |
| { |
| } |
| } |
| |
| return type.cast(adapter); |
| } |
| |
| /** |
| * Nested class to factor out dependencies on org.eclipse.core.runtime |
| * |
| * @author Eike Stepper |
| */ |
| private static final class AdaptableHelper |
| { |
| public static Object adapt(Object object, Class<?> type) |
| { |
| if (object instanceof org.eclipse.core.runtime.IAdaptable) |
| { |
| return ((org.eclipse.core.runtime.IAdaptable)object).getAdapter(type); |
| } |
| |
| return null; |
| } |
| } |
| |
| /** |
| * Nested class to factor out dependencies on org.eclipse.core.runtime |
| * |
| * @author Eike Stepper |
| */ |
| private static final class AdapterManagerHelper |
| { |
| private static org.eclipse.core.runtime.IAdapterManager adapterManager = org.eclipse.core.runtime.Platform.getAdapterManager(); |
| |
| public static Object adapt(Object object, Class<?> type) |
| { |
| if (adapterManager != null) |
| { |
| return adapterManager.getAdapter(object, type); |
| } |
| |
| return null; |
| } |
| } |
| } |