/*******************************************************************************
 * Copyright (c) 2015-2018 Skymind, Inc.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Apache License, Version 2.0 which is available at
 * https://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.
 *
 * SPDX-License-Identifier: Apache-2.0
 ******************************************************************************/

package org.deeplearning4j.perf.listener;

import org.apache.commons.io.FileUtils;
import org.junit.Ignore;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
import org.nd4j.linalg.factory.Nd4j;

import java.io.File;
import java.util.Arrays;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

@Ignore("AB 2019/05/24 - Failing on CI - \"Could not initialize class oshi.jna.platform.linux.Libc\" - Issue #7657")
public class SystemPollingTest extends BaseDL4JTest {

    @Rule
    public TemporaryFolder tempDir = new TemporaryFolder();

    @Test
    public void testPolling() throws Exception {
        Nd4j.create(1);
        File tmpDir = tempDir.newFolder();

        SystemPolling systemPolling = new SystemPolling.Builder()
                .outputDirectory(tmpDir).pollEveryMillis(1000)
                .build();
        systemPolling.run();

        Thread.sleep(8000);

        systemPolling.stopPolling();

        File[] files = tmpDir.listFiles();
        assertTrue(files != null && files.length > 0);
        //System.out.println(Arrays.toString(files));

        String yaml = FileUtils.readFileToString(files[0]);
        HardwareMetric fromYaml = HardwareMetric.fromYaml(yaml);
        System.out.println(fromYaml);
    }

}
