org.jembi.rhea.NamespaceExporter.java Source code

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Here is the source code for org.jembi.rhea.NamespaceExporter.java

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/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
package org.jembi.rhea;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jembi.rhea.TerminologyService.TSException;
import org.jembi.rhea.TerminologyService.TSNamespace;

/**
 * A service thread that periodically exports each namespace as a csv file.
 * This export is used by the website.
 *
 * @author Jembi Health Systems
 */
public class NamespaceExporter extends Thread {

    protected final Log log = LogFactory.getLog(getClass());

    private static final String OUTPUT_DIR = "/var/www/export/";
    private TerminologyService service;

    public NamespaceExporter(TerminologyService service) {
        this.service = service;
    }

    @Override
    public void run() {
        List<TSNamespace> namespaces = null;
        try {
            namespaces = service.getAllNamespaces();
        } catch (TSException ex) {
            log.error(ex);
            return;
        }

        for (TSNamespace ns : namespaces) {
            log.info("Exporting namespace " + ns.getName() + " (" + ns.getCode() + ")");

            if ("LOINC-3".equals(ns.getCode())) {
                log.info("Skipping LOINC-3");
                continue;
            }

            try {
                String export = service.exportNamespace(ns.getId());
                File f = new File(OUTPUT_DIR + ns.getId() + ".csv");

                if (f.exists())
                    f.delete();
                f.createNewFile();

                OutputStreamWriter out = new OutputStreamWriter(new FileOutputStream(f));
                try {
                    out.write(export);
                } finally {
                    out.flush();
                    out.close();
                }

                log.info("Exported to " + f.getAbsolutePath());
            } catch (Exception ex) {
                log.error(ex);
            }
        }
    }
}