com.comcast.viper.flume2storm.connection.sender.EventSenderStats.java Source code

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Here is the source code for com.comcast.viper.flume2storm.connection.sender.EventSenderStats.java

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/**
 * Copyright 2014 Comcast Cable Communications Management, LLC
 *
 * 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.comcast.viper.flume2storm.connection.sender;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

import com.google.common.base.Preconditions;

/**
 * Statistics related to the {@link EventSender}. This class is thread-safe.
 */
public final class EventSenderStats implements EventSenderStatsMBean {
    protected final String eventSenderId;
    protected final AtomicInteger nbClients;
    protected final AtomicLong nbEventIn;
    protected final AtomicLong nbEventOut;
    protected final AtomicLong nbEventFailed;

    /**
     * Default constructor
     * 
     * @param eventSenderId
     *          The {@link EventSender} identifier
     */
    public EventSenderStats(final String eventSenderId) {
        this.eventSenderId = eventSenderId;
        nbClients = new AtomicInteger();
        nbEventIn = new AtomicLong();
        nbEventOut = new AtomicLong();
        nbEventFailed = new AtomicLong();
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#getEventSenderId()
     */
    @Override
    public String getEventSenderId() {
        return eventSenderId;
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#reset()
     */
    @Override
    public final EventSenderStats reset() {
        nbClients.set(0);
        nbEventIn.set(0);
        nbEventOut.set(0);
        nbEventFailed.set(0);
        return this;
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#getNbClients()
     */
    @Override
    public final int getNbClients() {
        return nbClients.get();
    }

    /**
     * See {@link #getNbClients()}
     * 
     * @return This object
     */
    public final EventSenderStats incrClients() {
        nbClients.incrementAndGet();
        return this;
    }

    /**
     * See {@link #getNbClients()}
     * 
     * @return This object
     */
    public final EventSenderStats decrClients() {
        nbClients.decrementAndGet();
        return this;
    }

    /**
     * See {@link #getNbClients()}
     * 
     * @return This object
     */
    public final EventSenderStatsMBean resetClients() {
        nbClients.set(0);
        return this;
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#getNbEventsIn()
     */
    @Override
    public final long getNbEventsIn() {
        return nbEventIn.get();
    }

    /**
     * See {@link #getNbEventsIn()}
     * 
     * @return This object
     */
    public final EventSenderStats incrEventsIn() {
        return incrEventsIn(1);
    }

    /**
     * See {@link #getNbEventsIn()}
     * 
     * @param i
     *          The number of events to increment
     * 
     * @return This object
     */
    public final EventSenderStats incrEventsIn(final int i) {
        nbEventIn.addAndGet(i);
        return this;
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#getNbEventsOut()
     */
    @Override
    public final long getNbEventsOut() {
        return nbEventOut.get();
    }

    /**
     * See {@link #getNbEventsOut()}
     * 
     * @return This object
     */
    public final EventSenderStats incrEventsOut() {
        return incrEventsOut(1);
    }

    /**
     * See {@link #getNbEventsOut()}
     * 
     * @param i
     *          The number of events to increment
     * 
     * @return This object
     */
    public final EventSenderStats incrEventsOut(final int i) {
        nbEventOut.addAndGet(i);
        return this;
    }

    /**
     * @see com.comcast.viper.flume2storm.connection.sender.EventSenderStatsMBean#getNbEventsFailed()
     */
    @Override
    public final long getNbEventsFailed() {
        return nbEventFailed.get();
    }

    /**
     * See {@link #getNbEventsFailed()}
     * 
     * @return This object
     */
    public final EventSenderStatsMBean incrEventsFailed() {
        return incrEventsFailed(1);
    }

    /**
     * See {@link #getNbEventsFailed()}
     * 
     * @param i
     *          The number of events to increment
     * 
     * @return This object
     */
    public final EventSenderStatsMBean incrEventsFailed(final int i) {
        nbEventFailed.addAndGet(i);
        return this;
    }

    /**
     * @param other
     *          Another KryoNet Event Sender statistics object
     * @return True if the stats are the same
     */
    public boolean sameAs(EventSenderStats other) {
        Preconditions.checkNotNull(other);
        if (getNbClients() != other.getNbClients())
            return false;
        if (getNbEventsIn() != other.getNbEventsIn())
            return false;
        if (getNbEventsOut() != other.getNbEventsOut())
            return false;
        if (getNbEventsFailed() != other.getNbEventsFailed())
            return false;
        return true;
    }

    /**
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(nbClients).append(nbEventIn).append(nbEventOut).append(nbEventFailed)
                .hashCode();
    }

    /**
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        EventSenderStats other = (EventSenderStats) obj;
        return new EqualsBuilder().append(this.nbClients, other.nbClients).append(this.nbEventIn, other.nbEventIn)
                .append(this.nbEventOut, other.nbEventOut).append(this.nbEventFailed, other.nbEventFailed)
                .isEquals();
    }

    /**
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).append("NbClients", getNbClients())
                .append("NbEventsIn", getNbEventsIn()).append("NbEventsOut", getNbEventsOut())
                .append("NbEventsFailed", getNbEventsFailed()).toString();
    }
}