mirror of git://gcc.gnu.org/git/gcc.git
593 lines
15 KiB
Java
593 lines
15 KiB
Java
/* BeanContextSupport.java --
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Copyright (C) 2003, 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package java.beans.beancontext;
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import gnu.classpath.NotImplementedException;
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import java.beans.DesignMode;
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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyChangeListener;
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import java.beans.PropertyVetoException;
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import java.beans.VetoableChangeListener;
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import java.beans.Visibility;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.net.URL;
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import java.util.ArrayList;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Iterator;
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import java.util.Locale;
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/**
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* @author Michael Koch
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* @since 1.2
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*/
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public class BeanContextSupport extends BeanContextChildSupport
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implements BeanContext, Serializable, PropertyChangeListener,
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VetoableChangeListener
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{
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private static final long serialVersionUID = -4879613978649577204L;
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// This won't show up in japi, but we mark it as a stub anyway,
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// so that searches for NotImplementedException will find it.
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private void readObject (ObjectInputStream s)
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throws ClassNotFoundException, IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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// This won't show up in japi, but we mark it as a stub anyway,
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// so that searches for NotImplementedException will find it.
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private void writeObject (ObjectOutputStream s)
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throws ClassNotFoundException, IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected class BCSChild implements Serializable
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{
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private static final long serialVersionUID = -5815286101609939109L;
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private Object targetChild;
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private Object peer;
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BCSChild(Object targetChild, Object peer)
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{
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this.targetChild = targetChild;
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this.peer = peer;
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}
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}
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protected static final class BCSIterator implements Iterator
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{
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private Iterator child;
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BCSIterator(Iterator child)
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{
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this.child = child;
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}
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public boolean hasNext ()
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{
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return child.hasNext();
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}
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public Object next ()
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{
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return child.next();
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}
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public void remove ()
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{
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// This must be a noop remove operation.
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}
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}
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protected transient ArrayList bcmListeners;
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protected transient HashMap children;
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protected transient boolean designTime;
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protected transient Locale locale;
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protected transient boolean okToUseGui;
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/**
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* Construct a BeanContextSupport instance.
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*/
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public BeanContextSupport ()
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{
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this (null, null, true, true);
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}
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/**
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* Construct a BeanContextSupport instance.
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*/
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public BeanContextSupport (BeanContext peer)
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{
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this (peer, null, true, true);
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}
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/**
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* Construct a BeanContextSupport instance.
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*/
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public BeanContextSupport (BeanContext peer, Locale lcle)
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{
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this (peer, lcle, true, true);
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}
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/**
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* Construct a BeanContextSupport instance.
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*/
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public BeanContextSupport (BeanContext peer, Locale lcle, boolean dtime)
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{
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this (peer, lcle, dtime, true);
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}
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/**
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* Construct a BeanContextSupport instance.
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*/
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public BeanContextSupport (BeanContext peer, Locale lcle, boolean dtime,
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boolean visible)
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{
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super(peer);
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locale = lcle == null ? Locale.getDefault() : lcle;
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designTime = dtime;
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okToUseGui = visible;
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initialize ();
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}
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public boolean add (Object targetChild)
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{
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if (targetChild == null)
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throw new IllegalArgumentException();
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BCSChild child;
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synchronized (children)
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{
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if (children.containsKey(targetChild)
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|| ! validatePendingAdd(targetChild))
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return false;
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child = createBCSChild(targetChild, beanContextChildPeer);
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children.put(targetChild, child);
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}
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synchronized (targetChild)
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{
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childJustAddedHook(targetChild, child);
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}
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fireChildrenAdded(new BeanContextMembershipEvent(this,
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new Object[] { targetChild }));
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return true;
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}
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public boolean addAll (Collection c)
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{
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// Intentionally throws an exception.
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throw new UnsupportedOperationException();
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}
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public void addBeanContextMembershipListener
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(BeanContextMembershipListener listener)
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{
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synchronized (bcmListeners)
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{
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if (! bcmListeners.contains(listener))
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bcmListeners.add(listener);
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}
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}
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public boolean avoidingGui ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected Iterator bcsChildren ()
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{
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synchronized (children)
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{
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return new BCSIterator(children.values().iterator());
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}
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}
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protected void bcsPreDeserializationHook (ObjectInputStream ois)
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throws ClassNotFoundException, IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected void bcsPreSerializationHook (ObjectOutputStream oos)
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throws IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected void childDeserializedHook (Object child, BeanContextSupport.BCSChild bcsc)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected void childJustAddedHook (Object child, BeanContextSupport.BCSChild bcsc)
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{
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// Do nothing in the base class.
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}
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protected void childJustRemovedHook (Object child, BeanContextSupport.BCSChild bcsc)
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{
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// Do nothing in the base class.
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}
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protected static final boolean classEquals (Class first, Class second)
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{
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// Lame function!
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return (first == second || first.getName().equals(second.getName()));
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}
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public void clear ()
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{
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// This is the right thing to do.
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// The JDK docs are really bad here.
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throw new UnsupportedOperationException();
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}
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public boolean contains (Object o)
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{
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synchronized (children)
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{
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return children.containsKey(o);
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}
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}
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public boolean containsAll (Collection c)
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{
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synchronized (children)
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{
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Iterator it = c.iterator();
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while (it.hasNext())
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if (! children.containsKey(it.next()))
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return false;
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}
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return true;
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}
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public boolean containsKey (Object o)
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{
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synchronized (children)
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{
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return children.containsKey(o);
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}
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}
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protected final Object[] copyChildren ()
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{
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synchronized (children)
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{
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return children.keySet().toArray();
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}
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}
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protected BeanContextSupport.BCSChild createBCSChild (Object targetChild, Object peer)
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{
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return new BCSChild(targetChild, peer);
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}
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protected final void deserialize (ObjectInputStream ois, Collection coll)
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throws ClassNotFoundException, IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public void dontUseGui ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected final void fireChildrenAdded (BeanContextMembershipEvent bcme)
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{
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synchronized (bcmListeners)
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{
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Iterator it = bcmListeners.iterator();
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while (it.hasNext())
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{
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BeanContextMembershipListener l
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= (BeanContextMembershipListener) it.next();
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l.childrenAdded(bcme);
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}
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}
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}
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protected final void fireChildrenRemoved (BeanContextMembershipEvent bcme)
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{
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synchronized (bcmListeners)
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{
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Iterator it = bcmListeners.iterator();
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while (it.hasNext())
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{
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BeanContextMembershipListener l
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= (BeanContextMembershipListener) it.next();
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l.childrenRemoved(bcme);
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}
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}
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}
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public BeanContext getBeanContextPeer ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final BeanContextChild getChildBeanContextChild (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final BeanContextMembershipListener getChildBeanContextMembershipListener (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final PropertyChangeListener getChildPropertyChangeListener (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final Serializable getChildSerializable (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final VetoableChangeListener getChildVetoableChangeListener (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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protected static final Visibility getChildVisibility (Object child)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public Locale getLocale ()
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{
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return locale;
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}
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public URL getResource (String name, BeanContextChild bcc)
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{
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if (! contains(bcc))
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throw new IllegalArgumentException("argument not a child");
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ClassLoader loader = bcc.getClass().getClassLoader();
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return (loader == null ? ClassLoader.getSystemResource(name)
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: loader.getResource(name));
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}
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public InputStream getResourceAsStream (String name, BeanContextChild bcc)
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{
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if (! contains(bcc))
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throw new IllegalArgumentException("argument not a child");
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ClassLoader loader = bcc.getClass().getClassLoader();
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return (loader == null ? ClassLoader.getSystemResourceAsStream(name)
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: loader.getResourceAsStream(name));
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}
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protected void initialize ()
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{
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bcmListeners = new ArrayList();
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children = new HashMap();
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}
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public Object instantiateChild (String beanName)
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throws IOException, ClassNotFoundException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public boolean isDesignTime ()
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{
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return designTime;
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}
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public boolean isEmpty ()
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{
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synchronized (children)
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{
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return children.isEmpty();
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}
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}
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public boolean isSerializing ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public Iterator iterator ()
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{
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synchronized (children)
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{
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return children.keySet().iterator();
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}
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}
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public boolean needsGui ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public void okToUseGui ()
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public void propertyChange (PropertyChangeEvent pce)
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throws NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public final void readChildren (ObjectInputStream ois)
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throws IOException, ClassNotFoundException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public boolean remove (Object targetChild)
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{
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return remove(targetChild, true);
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}
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protected boolean remove (Object targetChild, boolean callChildSetBC)
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throws NotImplementedException
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{
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if (targetChild == null)
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throw new IllegalArgumentException();
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throw new Error ("Not implemented");
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}
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public boolean removeAll (Collection c)
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{
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// Intentionally throws an exception.
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throw new UnsupportedOperationException();
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}
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public void removeBeanContextMembershipListener (BeanContextMembershipListener bcml)
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{
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synchronized (bcmListeners)
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{
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bcmListeners.remove(bcml);
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}
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}
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public boolean retainAll (Collection c)
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{
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// Intentionally throws an exception.
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throw new UnsupportedOperationException();
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}
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protected final void serialize (ObjectOutputStream oos, Collection coll)
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throws IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public void setDesignTime (boolean dtime)
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{
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boolean save = designTime;
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designTime = dtime;
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firePropertyChange(DesignMode.PROPERTYNAME, Boolean.valueOf(save),
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Boolean.valueOf(dtime));
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}
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public void setLocale (Locale newLocale)
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throws PropertyVetoException
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{
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if (newLocale == null || locale == newLocale)
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return;
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fireVetoableChange("locale", locale, newLocale);
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Locale oldLocale = locale;
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locale = newLocale;
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firePropertyChange("locale", oldLocale, newLocale);
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}
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public int size ()
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{
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synchronized (children)
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{
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return children.size();
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}
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}
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public Object[] toArray ()
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{
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synchronized (children)
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{
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return children.keySet().toArray();
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}
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}
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public Object[] toArray(Object[] array)
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throws NotImplementedException
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{
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// This implementation is incorrect, I think.
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synchronized (children)
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{
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return children.keySet().toArray(array);
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}
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}
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protected boolean validatePendingAdd (Object targetChild)
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{
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return true;
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}
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protected boolean validatePendingRemove (Object targetChild)
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{
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return true;
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}
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public void vetoableChange (PropertyChangeEvent pce)
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throws PropertyVetoException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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public final void writeChildren (ObjectOutputStream oos)
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throws IOException, NotImplementedException
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{
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throw new Error ("Not implemented");
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}
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}
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