132 lines
3.9 KiB
Java
132 lines
3.9 KiB
Java
package org.gcube.application.perform.service.engine;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.util.List;
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import org.gcube.application.perform.service.LocalConfiguration;
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import org.gcube.application.perform.service.engine.dm.DMUtils;
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import org.gcube.application.perform.service.engine.model.DBField.ImportRoutine;
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import org.gcube.application.perform.service.engine.model.DBQueryDescriptor;
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import org.gcube.application.perform.service.engine.model.ISQueryDescriptor;
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import org.gcube.application.perform.service.engine.model.InternalException;
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import org.gcube.application.perform.service.engine.model.importer.ImportRequest;
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import org.gcube.application.perform.service.engine.model.importer.ImportRoutineDescriptor;
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import org.gcube.data.analysis.dataminermanagercl.shared.data.computations.ComputationId;
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import lombok.Synchronized;
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import lombok.extern.slf4j.Slf4j;
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@Slf4j
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public class ImporterImpl implements Importer {
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private static final String ORPHAN_IMPORTS="";
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private static final String ACQUIRE_PS="";
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private static ISQueryDescriptor isQueryDescriptor=null;
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@Synchronized
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private ISQueryDescriptor getISQueryDescriptor() {
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if(isQueryDescriptor==null) {
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isQueryDescriptor=
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new ISQueryDescriptor(
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LocalConfiguration.getProperty(LocalConfiguration.MAPPING_DB_ENDPOINT_NAME), null,
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LocalConfiguration.getProperty(LocalConfiguration.MAPPING_DB_ENDPOINT_CATEGORY));
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}
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return isQueryDescriptor;
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}
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private static final String getHostname() {
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throw new RuntimeException("IMPLEMENT THIS");
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}
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public void init() throws InternalException{
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try {
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log.info("Initializing IMPORTER");
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DataBaseManager db=DataBaseManager.get(getISQueryDescriptor());
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Connection conn=db.getConnection();
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conn.setAutoCommit(true);
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PreparedStatement psOrphans=conn.prepareStatement(ORPHAN_IMPORTS);
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PreparedStatement psAcquire=conn.prepareStatement(ACQUIRE_PS);
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// set ps
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ResultSet rsOrphans=psOrphans.executeQuery();
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long monitoredCount=0l;
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while(rsOrphans.next()) {
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Long id=rsOrphans.getLong(ImportRoutine.ID);
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try {
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ImportRoutineDescriptor desc=rowToDescriptor(rsOrphans);
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String hostname=getHostname();
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// "acquire"
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// set lock = hostname where ID =? and LOCK is null
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// Acquired = updated rows == 1
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psAcquire.setString(1, hostname);
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psAcquire.setLong(2, id);
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if(psAcquire.executeUpdate()>0) {
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log.debug("Acquired {} ",id);
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monitor(desc);
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monitoredCount++;
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}
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}catch(Throwable t) {
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log.warn("Unable to monitor orphan with ID {} ",id,t);
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}
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}
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log.info("Acquired {} import executions for monitoring",monitoredCount);
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}catch(Throwable t) {
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log.warn("Unexpected Error while trying to check orphan import routines");
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throw new InternalException(t);
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}
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}
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@Override
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public ImportRoutineDescriptor importExcel(ImportRequest request) {
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log.debug("Submitting {} ",request);
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ComputationId id=submit(request);
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log.debug("Registering {} computationID {} ",request,id);
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ImportRoutineDescriptor desc=register(id,request);
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log.debug("Monitoring {} computationID {} ",desc,id);
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monitor(desc);
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return getDescriptorById(desc.getId());
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}
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private void monitor(ImportRoutineDescriptor desc) {
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throw new RuntimeException("IMPLEMENT THIS SHIT");
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}
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private ComputationId submit(ImportRequest request) {
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throw new RuntimeException("IMPLEMENT THIS SHIT");
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}
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private ImportRoutineDescriptor register(ComputationId computationId,ImportRequest request) {
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throw new RuntimeException("IMPLEMENT THIS SHIT");
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}
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private ImportRoutineDescriptor getDescriptorById(Long id) {
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throw new RuntimeException("IMPLEMENT THIS SHIT");
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}
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@Override
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public List<ImportRoutineDescriptor> getDescriptors(DBQueryDescriptor desc) {
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// TODO Auto-generated method stub
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return null;
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}
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private static ImportRoutineDescriptor rowToDescriptor(ResultSet rs) {
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throw new RuntimeException("IMPLEMENT THIS SHIT");
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}
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}
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