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ThreadGroupContext.java
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130 lines (108 loc) · 3.07 KB
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/*
* Copyright (c) 2011, 2013, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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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.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;
}
}