| /* |
| * Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.beans; |
| |
| import com.sun.beans.finder.BeanInfoFinder; |
| import com.sun.beans.finder.PropertyEditorFinder; |
| |
| import java.awt.GraphicsEnvironment; |
| import java.util.Map; |
| import java.util.WeakHashMap; |
| |
| /** |
| * The {@code ThreadGroupContext} is an application-dependent |
| * context referenced by the specific {@link ThreadGroup}. |
| * This is a replacement for the {@link sun.awt.AppContext}. |
| * |
| * @author Sergey Malenkov |
| */ |
| final class ThreadGroupContext { |
| |
| private static final WeakIdentityMap<ThreadGroupContext> contexts = new WeakIdentityMap<ThreadGroupContext>() { |
| protected ThreadGroupContext create(Object key) { |
| return new ThreadGroupContext(); |
| } |
| }; |
| |
| /** |
| * Returns the appropriate {@code ThreadGroupContext} for the caller, |
| * as determined by its {@code ThreadGroup}. |
| * |
| * @return the application-dependent context |
| */ |
| static ThreadGroupContext getContext() { |
| return contexts.get(Thread.currentThread().getThreadGroup()); |
| } |
| |
| private volatile boolean isDesignTime; |
| private volatile Boolean isGuiAvailable; |
| |
| private Map<Class<?>, BeanInfo> beanInfoCache; |
| private BeanInfoFinder beanInfoFinder; |
| private PropertyEditorFinder propertyEditorFinder; |
| |
| private ThreadGroupContext() { |
| } |
| |
| boolean isDesignTime() { |
| return this.isDesignTime; |
| } |
| |
| void setDesignTime(boolean isDesignTime) { |
| this.isDesignTime = isDesignTime; |
| } |
| |
| |
| boolean isGuiAvailable() { |
| Boolean isGuiAvailable = this.isGuiAvailable; |
| return (isGuiAvailable != null) |
| ? isGuiAvailable.booleanValue() |
| : !GraphicsEnvironment.isHeadless(); |
| } |
| |
| void setGuiAvailable(boolean isGuiAvailable) { |
| this.isGuiAvailable = Boolean.valueOf(isGuiAvailable); |
| } |
| |
| |
| BeanInfo getBeanInfo(Class<?> type) { |
| return (this.beanInfoCache != null) |
| ? this.beanInfoCache.get(type) |
| : null; |
| } |
| |
| BeanInfo putBeanInfo(Class<?> type, BeanInfo info) { |
| if (this.beanInfoCache == null) { |
| this.beanInfoCache = new WeakHashMap<>(); |
| } |
| return this.beanInfoCache.put(type, info); |
| } |
| |
| void removeBeanInfo(Class<?> type) { |
| if (this.beanInfoCache != null) { |
| this.beanInfoCache.remove(type); |
| } |
| } |
| |
| void clearBeanInfoCache() { |
| if (this.beanInfoCache != null) { |
| this.beanInfoCache.clear(); |
| } |
| } |
| |
| |
| synchronized BeanInfoFinder getBeanInfoFinder() { |
| if (this.beanInfoFinder == null) { |
| this.beanInfoFinder = new BeanInfoFinder(); |
| } |
| return this.beanInfoFinder; |
| } |
| |
| synchronized PropertyEditorFinder getPropertyEditorFinder() { |
| if (this.propertyEditorFinder == null) { |
| this.propertyEditorFinder = new PropertyEditorFinder(); |
| } |
| return this.propertyEditorFinder; |
| } |
| } |