Examples with RowInput org.knime.core.node.streamable.RowInput used on opensource projects

Example 11 with RowInput

use of org.knime.core.node.streamable.RowInput in project knime-core by knime.

the class AbstractColumnRefNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    return new StreamableOperator() {

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            ColumnRearranger[] cr = createRearranger((DataTableSpec) inSpecs[0], (DataTableSpec) inSpecs[1]);
            StreamableFunction func1 = cr[0].createStreamableFunction(0, 0);
            if (m_isSplitter) {
                StreamableFunction func2 = cr[1].createStreamableFunction(0, 1);
                RowInput rowInput = ((RowInput) inputs[0]);
                RowOutput rowOutput1 = ((RowOutput) outputs[0]);
                RowOutput rowOutput2 = ((RowOutput) outputs[1]);
                StreamableFunction.runFinalInterwoven(rowInput, func1, rowOutput1, func2, rowOutput2, exec);
            } else {
                func1.runFinal(inputs, outputs, exec);
            }
        }
    };
}

Example 12 with RowInput

use of org.knime.core.node.streamable.RowInput in project knime-core by knime.

the class RowFilter2PortNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected BufferedDataTable[] execute(final BufferedDataTable[] inData, final ExecutionContext exec) throws Exception {
    BufferedDataTable in = inData[0];
    // in case the node was configured and the workflow is closed
    // (and saved), the row filter isn't configured upon reloading.
    // here, we give it a chance to configure itself (e.g. find the column
    // index)
    m_rowFilter.configure(in.getDataTableSpec());
    BufferedDataContainer match = exec.createDataContainer(in.getDataTableSpec());
    BufferedDataContainer miss = exec.createDataContainer(in.getDataTableSpec());
    RowOutput rowOutput1 = new BufferedDataTableRowOutput(match);
    RowOutput rowOutput2 = new BufferedDataTableRowOutput(miss);
    RowInput rowInput = new DataTableRowInput(inData[0]);
    // do it
    this.execute(rowInput, rowOutput1, rowOutput2, inData[0].size(), exec);
    // note: tables are closed in the private execute method
    return new BufferedDataTable[] { match.getTable(), miss.getTable() };
}

Example 13 with RowInput

use of org.knime.core.node.streamable.RowInput in project knime-core by knime.

the class CSVWriterNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    return new StreamableOperator() {

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            assert outputs.length == 0;
            RowInput input = (RowInput) inputs[0];
            doIt(null, input, exec);
            return;
        }
    };
}

Example 14 with RowInput

use of org.knime.core.node.streamable.RowInput in project knime-core by knime.

the class DBWriterNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    return new StreamableOperator() {

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            exec.setProgress("Opening database connection to write data...");
            DatabaseConnectionSettings connSettings;
            PortObject portObj = ((PortObjectInput) inputs[1]).getPortObject();
            if (portObj != null && (portObj instanceof DatabaseConnectionPortObject)) {
                connSettings = ((DatabaseConnectionPortObject) portObj).getConnectionSettings(getCredentialsProvider());
            } else {
                connSettings = m_conn;
            }
            DBWriter writer = connSettings.getUtility().getWriter(connSettings);
            // write entire data
            m_errorMessage = writer.writeData(m_tableName, (RowInput) inputs[0], -1, m_append, exec, m_types, getCredentialsProvider(), m_batchSize, m_insertNullForMissingCols);
        }
    };
}

Example 15 with RowInput

use of org.knime.core.node.streamable.RowInput in project knime-core by knime.

the class UngroupNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    DataTableSpec spec = (DataTableSpec) inSpecs[0];
    int[] idxs = getSelectedColIdxs(spec, getColumnNames(spec));
    UngroupOperation2 ugO = createUngroupOperation(spec, idxs);
    return new StreamableOperator() {

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            RowInput input = (RowInput) inputs[0];
            RowOutput output = (RowOutput) outputs[0];
            ugO.compute(input, output, exec, -1, m_trans);
            input.close();
            output.close();
        }
    };
}