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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2013-2014 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
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 *
 * GPL Classpath Exception:
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 *
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package org.glassfish.jersey.server.internal.monitoring;

import java.util.Map;

import org.glassfish.jersey.server.monitoring.ResponseStatistics;

import jersey.repackaged.com.google.common.collect.Maps;

/**
 * @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
 *
 */
class ResponseStatisticsImpl implements ResponseStatistics {
    private final Map responseCodes;
    private final Integer lastResponseCode;


    static class Builder {
        private Map responseCodes = Maps.newHashMap();
        private Integer lastResponseCode = null;

        void addResponseCode(int responseCode) {
            lastResponseCode = responseCode;
            Long currentValue = responseCodes.get(responseCode);
            if (currentValue == null) {
                currentValue = 0l;
            }
            responseCodes.put(responseCode, currentValue + 1);
        }

        ResponseStatisticsImpl build() {
            return new ResponseStatisticsImpl(lastResponseCode, responseCodes);
        }

    }

    private ResponseStatisticsImpl(Integer lastResponseCode, Map responseCodes) {
        this.lastResponseCode = lastResponseCode;
        this.responseCodes = responseCodes;
    }

    @Override
    public Integer getLastResponseCode() {
        return lastResponseCode;
    }

    @Override
    public Map getResponseCodes() {
        return responseCodes;
    }

    @Override
    public ResponseStatistics snapshot() {
        // snapshot functionality not yet implemented
        return this;
    }
}