org.trustedanalytics.dataproviders.RandomDataProvider.java Source code

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Here is the source code for org.trustedanalytics.dataproviders.RandomDataProvider.java

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/**
 * Copyright (c) 2016 Intel Corporation
 *
 * 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 org.trustedanalytics.dataproviders;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Profile;
import org.trustedanalytics.process.DataConsumer;

import java.security.SecureRandom;

@Profile("random")
public class RandomDataProvider {
    private static final Logger LOG = LoggerFactory.getLogger(RandomDataProvider.class);
    private final DataConsumer dataConsumer;
    private SecureRandom randomGenerator = new SecureRandom();

    public RandomDataProvider(DataConsumer dataConsumer) {
        this.dataConsumer = dataConsumer;
    }

    public float[] generateRandomFloatArray() {
        float[] randomArray = new float[10];
        randomArray[0] = randomGenerator.nextInt(5) + 1f;
        for (int i = 1; i < 10; i++) {
            randomArray[i] = randomGenerator.nextFloat();
        }
        return randomArray;
    }

    public void init() {
        new Thread(() -> {
            LOG.info("start consumer thread");
            while (true) {
                try {
                    Thread.sleep(1000);
                    dataConsumer.processMessage(generateRandomFloatArray());
                } catch (InterruptedException e) {
                    LOG.error(e.getMessage(), e);
                    Thread.currentThread().interrupt();
                }
            }
        }).start();
    }
}