com.google.gwt.ajaxloader.client.ExceptionHelper.java Source code

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Here is the source code for com.google.gwt.ajaxloader.client.ExceptionHelper.java

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/*
 * Copyright 2008 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.ajaxloader.client;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.GWT.UncaughtExceptionHandler;

/**
 * Helps with the GWT uncaught exception handler.
 */
public abstract class ExceptionHelper {
    /**
     * If an uncaught exception handler has been registered, execute the Runnable 
     * in a try/catch block and handle exceptions with the uncaught exception 
     * handler.  Otherwise, run the Runnable and do not catch exceptions.
     * 
     * @param runnable The Runnable to execute.
     */
    public static void runProtected(Runnable runnable) {
        UncaughtExceptionHandler handler = GWT.getUncaughtExceptionHandler();
        if (handler != null) {
            try {
                runnable.run();
            } catch (Throwable e) {
                handler.onUncaughtException(e);
            }
        } else {
            runnable.run();
        }
    }

    private ExceptionHelper() {
        // do not instantiate
    }
}