/*
* Copyright (c) 2011, 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
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*/
package java.beans;
import com.sun.beans.finder.BeanInfoFinder;
import com.sun.beans.finder.PropertyEditorFinder;
import java.awt.GraphicsEnvironment;
import java.util.HashMap;
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 Map<ThreadGroup, ThreadGroupContext> contexts = new WeakHashMap<>();
/**
* Returns the appropriate {@code AppContext} for the caller,
* as determined by its {@code ThreadGroup}.
*
* @return the application-dependent context
*/
static ThreadGroupContext getContext() {
ThreadGroup group = Thread.currentThread().getThreadGroup();
synchronized (contexts) {
ThreadGroupContext context = contexts.get(group);
if (context == null) {
context = new ThreadGroupContext();
contexts.put(group, context);
}
return context;
}
}
private volatile boolean isDesignTime;
private volatile Boolean isGuiAvailable;
private Map<Class<?>, BeanInfo> beanInfoCache;
private BeanInfoFinder beanInfoFinder;
private PropertyEditorFinder propertyEditorFinder;
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;
}
}