jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/api/MultiTaskListener.java@af8417e590f4 (annotated)

src/share/classes/com/sun/tools/javac/api/MultiTaskListener.java@af8417e590f4 (annotated)

src/share/classes/com/sun/tools/javac/api/MultiTaskListener.java

Sun, 17 Feb 2013 16:44:55 -0500

author: dholmes
date: Sun, 17 Feb 2013 16:44:55 -0500
changeset 1571: af8417e590f4
parent 1339: 0e5899f09dab
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

Merge

 /*
  * Copyright (c) 2011, 2012, 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 com.sun.tools.javac.api;
 import java.util.Arrays;
 import java.util.Collection;
 import com.sun.source.util.TaskEvent;
 import com.sun.source.util.TaskListener;
 import com.sun.tools.javac.util.Context;
 /**
  * TODO.
  *
  * <p><b>This is NOT part of any supported API.
  * If you write code that depends on this, you do so at your own risk.
  * This code and its internal interfaces are subject to change or
  * deletion without notice.</b>
  */
 public class MultiTaskListener implements TaskListener {
     /** The context key for the MultiTaskListener. */
     public static final Context.Key<MultiTaskListener> taskListenerKey =
         new Context.Key<MultiTaskListener>();
     /** Get the MultiTaskListener instance for this context. */
     public static MultiTaskListener instance(Context context) {
         MultiTaskListener instance = context.get(taskListenerKey);
         if (instance == null)
             instance = new MultiTaskListener(context);
         return instance;
     }
     protected MultiTaskListener(Context context) {
         context.put(taskListenerKey, this);
         ccw = ClientCodeWrapper.instance(context);
     }
     /**
      * The current set of registered listeners.
      * This is a mutable reference to an immutable array.
      */
     TaskListener[] listeners = { };
     ClientCodeWrapper ccw;
     public Collection<TaskListener> getTaskListeners() {
         return Arrays.asList(listeners);
     }
     public boolean isEmpty() {
         return (listeners.length == 0);
     }
     public void add(TaskListener listener) {
         for (TaskListener l: listeners) {
             if (ccw.unwrap(l) == listener)
                 throw new IllegalStateException();
         }
         listeners = Arrays.copyOf(listeners, listeners.length + 1);
         listeners[listeners.length - 1] = ccw.wrap(listener);
     }
     public void remove(TaskListener listener) {
         for (int i = 0; i < listeners.length; i++) {
             if (ccw.unwrap(listeners[i]) == listener) {
                 TaskListener[] newListeners = new TaskListener[listeners.length - 1];
                 System.arraycopy(listeners, 0, newListeners, 0, i);
                 System.arraycopy(listeners, i + 1, newListeners, i, newListeners.length - i);
                 listeners = newListeners;
                 break;
             }
         }
     }
     @Override
     public void started(TaskEvent e) {
         // guard against listeners being updated by a listener
         TaskListener[] ll = this.listeners;
         for (TaskListener l: ll)
             l.started(e);
     }
     @Override
     public void finished(TaskEvent e) {
         // guard against listeners being updated by a listener
         TaskListener[] ll = this.listeners;
         for (TaskListener l: ll)
             l.finished(e);
     }
     @Override
     public String toString() {
         return Arrays.toString(listeners);
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/api/MultiTaskListener.java@af8417e590f4 (annotated)

src/share/classes/com/sun/tools/javac/api/MultiTaskListener.java