io.hops.hopsworks.common.dao.tensorflow.TensorflowFacade.java Source code

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Here is the source code for io.hops.hopsworks.common.dao.tensorflow.TensorflowFacade.java

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/*
 * Changes to this file committed after and not including commit-id: ccc0d2c5f9a5ac661e60e6eaf138de7889928b8b
 * are released under the following license:
 *
 * This file is part of Hopsworks
 * Copyright (C) 2018, Logical Clocks AB. All rights reserved
 *
 * Hopsworks is free software: you can redistribute it and/or modify it under the terms of
 * the GNU Affero General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * Hopsworks is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.  See the GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License along with this program.
 * If not, see <https://www.gnu.org/licenses/>.
 *
 * Changes to this file committed before and including commit-id: ccc0d2c5f9a5ac661e60e6eaf138de7889928b8b
 * are released under the following license:
 *
 * Copyright (C) 2013 - 2018, Logical Clocks AB and RISE SICS AB. All rights reserved
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify, merge,
 * publish, distribute, sublicense, and/or sell copies of the Software, and to permit
 * persons to whom the Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all copies or
 * substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  OR IMPLIED, INCLUDING
 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package io.hops.hopsworks.common.dao.tensorflow;

import io.hops.hopsworks.common.hdfs.DistributedFileSystemOps;
import io.hops.hopsworks.common.hdfs.DistributedFsService;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import io.hops.hopsworks.common.util.Settings;
import java.io.File;
import java.io.IOException;
import java.util.logging.Level;
import org.apache.commons.io.IOUtils;
import org.apache.hadoop.fs.FSDataInputStream;

@Stateless
public class TensorflowFacade {

    private final static Logger LOGGER = Logger.getLogger(TensorflowFacade.class.getName());

    @PersistenceContext(unitName = "kthfsPU")
    private EntityManager em;

    @EJB
    Settings settings;
    @EJB
    private DistributedFsService dfs;

    protected EntityManager getEntityManager() {
        return em;
    }

    public TensorflowFacade() {
    }

    public String getTensorboardURI(String appId, String projectName) {
        DistributedFileSystemOps dfso = null;
        try {
            dfso = dfs.getDfsOps();
            String tensorboardFile = File.separator + Settings.DIR_ROOT + File.separator + projectName
                    + File.separator + Settings.PROJECT_STAGING_DIR + File.separator + ".tensorboard." + appId;
            try {
                FSDataInputStream file = dfso.open(tensorboardFile);
                String uri = IOUtils.toString(file);
                return uri;
            } catch (IOException ex) {
                LOGGER.log(Level.WARNING, "error while trying to read tensorboard file: " + tensorboardFile, ex);
                return null;
            }

        } finally {
            if (dfso != null) {
                dfso.close();
            }
        }
    }
}