Examples with NodeProgressListener org.knime.core.node.workflow.NodeProgressListener used on opensource projects

Example 6 with NodeProgressListener

use of org.knime.core.node.workflow.NodeProgressListener in project knime-core by knime.

the class TableSorterWorker method doInBackground.

/**
 * {@inheritDoc}
 */
@Override
protected DataTable doInBackground() throws Exception {
    // passed to table sorter for progress
    long rowCount;
    if (m_inputTable instanceof BufferedDataTable) {
        rowCount = ((BufferedDataTable) m_inputTable).size();
    } else if (m_inputTable instanceof ContainerTable) {
        rowCount = ((ContainerTable) m_inputTable).size();
    } else {
        // unknown, no progress
        rowCount = -1;
    }
    publish(new NodeProgress(0.0, "Starting table sort..."));
    Collection<String> sortColNames = new ArrayList<String>(2);
    DataTableSpec spec = m_inputTable.getDataTableSpec();
    for (int i : m_sortOrder.getSortColumnIndices()) {
        String name;
        if (i < 0) {
            // row id
            name = DataTableSorter.ROWKEY_SORT_SPEC.getName();
        } else {
            name = spec.getColumnSpec(i).getName();
        }
        sortColNames.add(name);
    }
    long start = System.currentTimeMillis();
    LOGGER.debug("Starting interactive table sorting on column(s) " + sortColNames);
    boolean[] sortOrders = m_sortOrder.getSortColumnOrder();
    // it DOES NOT respect blobs -- they will be copied (expensive)
    DataTableSorter sorter = new DataTableSorter(m_inputTable, rowCount, sortColNames, sortOrders, false);
    NodeProgressListener progLis = new NodeProgressListener() {

        @Override
        public void progressChanged(final NodeProgressEvent pe) {
            publish(pe.getNodeProgress());
        }
    };
    m_nodeProgressMonitor = new DefaultNodeProgressMonitor();
    ExecutionMonitor exec = new ExecutionMonitor(m_nodeProgressMonitor);
    m_nodeProgressMonitor.addProgressListener(progLis);
    try {
        DataTable result = sorter.sort(exec);
        long elapsedMS = System.currentTimeMillis() - start;
        String time = StringFormat.formatElapsedTime(elapsedMS);
        LOGGER.debug("Interactive table sorting finished (" + time + ")");
        return result;
    } finally {
        m_nodeProgressMonitor.removeProgressListener(progLis);
    }
}

Example 7 with NodeProgressListener

use of org.knime.core.node.workflow.NodeProgressListener in project knime-core by knime.

the class DefaultNodeProgressMonitor method fireProgressChanged.

private void fireProgressChanged() {
    m_changed = false;
    NodeProgress pe = new NodeProgress(getProgress(), createMessage(m_messageSupplier, m_appendSupplier));
    for (NodeProgressListener l : m_listeners) {
        try {
            // we can't provide a useful node id here
            // TODO replace by null argument (0 is certainly misleading)
            l.progressChanged(new NodeProgressEvent(new NodeID(0), pe));
        } catch (Throwable t) {
            LOGGER.error("Exception while notifying listeners", t);
        }
    }
}

Example 8 with NodeProgressListener

use of org.knime.core.node.workflow.NodeProgressListener in project knime-core by knime.

the class DefaultNodeProgressMonitorTest method internalTestManySmallIncrements.

/**
 * Just a lot of incremental numeric progress updates.
 */
private void internalTestManySmallIncrements(final NodeProgressMonitor toMonitor, final NodeProgressMonitor toControl) throws Exception {
    final Pointer<NodeProgress> progressPointer = new Pointer<>();
    final Function<NodeProgress, Boolean> isLastEventFunction = p -> p.getProgress() >= 1.0 - PROG_EPSILON;
    NodeProgressListener l = createListener(progressPointer, isLastEventFunction);
    toMonitor.addProgressListener(l);
    try {
        int parts = 10000000;
        for (int i = 0; i < parts; i++) {
            toControl.setProgress((i + 1) / (double) parts);
        }
        synchronized (isLastEventFunction) {
            isLastEventFunction.wait(1000);
        }
        assertThat(progressPointer.get().getProgress(), is(closeTo(1.0, PROG_EPSILON)));
    } finally {
        toMonitor.removeProgressListener(l);
    }
}