Copyright 2015 Netflix, 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.
/**
 * Copyright 2015 Netflix, 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.netflix.hystrix.metric;

import com.netflix.hystrix.HystrixCollapserKey;
import com.netflix.hystrix.HystrixEventType;

Data class that comprises the event stream for Hystrix collapser executions. This class represents the 3 things that can happen (found in Collapser enum: 

    
ADDED_TO_BATCH
    
BATCH_EXECUTED
    
RESPONSE_FROM_CACHE

/**
 * Data class that comprises the event stream for Hystrix collapser executions.
 * This class represents the 3 things that can happen (found in {@link com.netflix.hystrix.HystrixEventType.Collapser} enum:
 * <p><ul>
 *     <li>ADDED_TO_BATCH</li>
 *     <li>BATCH_EXECUTED</li>
 *     <li>RESPONSE_FROM_CACHE</li>
 * </ul>
 *
 */
public class HystrixCollapserEvent implements HystrixEvent {
    private final HystrixCollapserKey collapserKey;
    private final HystrixEventType.Collapser eventType;
    private final int count;

    protected HystrixCollapserEvent(HystrixCollapserKey collapserKey, HystrixEventType.Collapser eventType, int count) {
        this.collapserKey = collapserKey;
        this.eventType = eventType;
        this.count = count;
    }

    public static HystrixCollapserEvent from(HystrixCollapserKey collapserKey, HystrixEventType.Collapser eventType, int count) {
        return new HystrixCollapserEvent(collapserKey, eventType, count);
    }

    public HystrixCollapserKey getCollapserKey() {
        return collapserKey;
    }

    public HystrixEventType.Collapser getEventType() {
        return eventType;
    }

    public int getCount() {
        return count;
    }

    @Override
    public String toString() {
        return "HystrixCollapserEvent[" + collapserKey.name() + "] : " + eventType.name() + " : " + count;
    }
}