io.netty.handler.ssl.SslCompletionEvent Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2017 The Netty Project
 *
 * The Netty Project licenses this file to you 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 io.netty.handler.ssl;

import io.netty.util.internal.ObjectUtil;

public abstract class SslCompletionEvent {

    private final Throwable cause;

    SslCompletionEvent() {
        cause = null;
    }

    SslCompletionEvent(Throwable cause) {
        this.cause = ObjectUtil.checkNotNull(cause, "cause");
    }

    /**
     * Return {@code true} if the completion was successful
     */
    public final boolean isSuccess() {
        return cause == null;
    }

    /**
     * Return the {@link Throwable} if {@link #isSuccess()} returns {@code false}
     * and so the completion failed.
     */
    public final Throwable cause() {
        return cause;
    }

    @Override
    public  String toString() {
        final Throwable cause = cause();
        return cause == null? getClass().getSimpleName() + "(SUCCESS)" :
                getClass().getSimpleName() +  '(' + cause + ')';
    }
}