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    • com.proofpoint.event.client.InMemoryEventClient Maven / Gradle / Ivy

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    /*
 * Copyright 2010 Proofpoint, 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.proofpoint.event.client;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import com.google.common.util.concurrent.CheckedFuture;
import com.google.common.util.concurrent.Futures;

import java.io.IOException;
import java.net.URI;
import java.util.Arrays;
import java.util.List;

import static com.google.common.collect.Lists.newArrayList;

public class InMemoryEventClient implements EventClient
{
    private final List events = newArrayList();

    @Override
    @SafeVarargs
    public final  CheckedFuture post(T... events)
            throws IllegalArgumentException
    {
        return post(Arrays.asList(events));
    }

    @Override
    public  CheckedFuture post(Iterable events)
            throws IllegalArgumentException
    {
        Preconditions.checkNotNull(events, "event is null");
        for (T event : events) {
            Preconditions.checkNotNull(event, "event is null");
            this.events.add(event);
        }
        return Futures.immediateCheckedFuture(null);
    }

    @Override
    public  CheckedFuture post(EventGenerator eventGenerator)
            throws IllegalArgumentException
    {
        Preconditions.checkNotNull(eventGenerator, "eventGenerator is null");
        try {
            eventGenerator.generate(new EventPoster()
            {
                @Override
                public void post(T event)
                {
                    Preconditions.checkNotNull(event, "event is null");
                    InMemoryEventClient.this.events.add(event);
                }
            });
        }
        catch (IOException e) {
            return Futures.immediateFailedCheckedFuture(new EventSubmissionFailedException("event", "general", ImmutableMap.of(URI.create("in-memory://"), e)));
        }
        return Futures.immediateCheckedFuture(null);
    }

    public List getEvents()
    {
        return ImmutableList.copyOf(events);
    }
}
    
    
    
    

    




    
    
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