StreamStatusMetricService.java

/**
 * Copyright (C) 2014 Stratio (http://stratio.com)
 *
 * 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.stratio.decision.service;

import com.ryantenney.metrics.annotation.CachedGauge;
import com.stratio.decision.dao.StreamStatusDao;
import com.stratio.decision.streams.StreamStatusDTO;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.TimeUnit;

public class StreamStatusMetricService {
    private final StreamStatusDao streamStatusDao;

    public StreamStatusMetricService(StreamStatusDao streamStatusDao) {
        this.streamStatusDao = streamStatusDao;
    }

    @CachedGauge(absolute = true, name = "streams.count", timeout = 30, timeoutUnit = TimeUnit.SECONDS)
    public int getTotalStreams() {
        return streamStatusDao.getAll().size();
    }

    @CachedGauge(absolute = true, name = "streams.names", timeout = 30, timeoutUnit = TimeUnit.SECONDS)
    public List<String> getStreamNames() {
        Map<String, StreamStatusDTO> streams = streamStatusDao.getAll();
        List<String> result = new ArrayList<>();
        for (StreamStatusDTO stream : streams.values()) {
            result.add(stream.getStreamName());
        }
        return result;
    }

    @CachedGauge(absolute = true, name = "streams.actions", timeout = 30, timeoutUnit = TimeUnit.SECONDS)
    public Map<String, String> getStreamActions() {
        Map<String, StreamStatusDTO> streams = streamStatusDao.getAll();
        Map<String, String> result = new HashMap<>();
        for (StreamStatusDTO stream : streams.values()) {
            result.put(stream.getStreamName(), stream.getActionsEnabled().toString());
        }
        return result;
    }
}