io.netty.channel.group.ChannelGroupException 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 2013 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.channel.group;

import io.netty.channel.Channel;
import io.netty.channel.ChannelException;
import io.netty.channel.ChannelFuture;

import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map;

/**
 * {@link ChannelException} which holds {@link ChannelFuture}s that failed because of an error.
 */
public class ChannelGroupException extends ChannelException implements Iterable> {
    private static final long serialVersionUID = -4093064295562629453L;
    private final Collection> failed;

    public ChannelGroupException(Collection> causes) {
        if (causes == null) {
            throw new NullPointerException("causes");
        }
        if (causes.isEmpty()) {
            throw new IllegalArgumentException("causes must be non empty");
        }
        failed = Collections.unmodifiableCollection(causes);
    }

    /**
     * Returns a {@link Iterator} which contains all the {@link Throwable} that was a cause of the failure and the
     * related id of the {@link Channel}.
     */
    @Override
    public Iterator> iterator() {
        return failed.iterator();
    }
}