Examples with ExecutionContext org.knime.core.node.ExecutionContext used on opensource projects

Example 1 with ExecutionContext

use of org.knime.core.node.ExecutionContext in project knime-core by knime.

the class RuleEngine2PortsNodeModel method createStreamableOperator.

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

        private StreamInternalWithPortObject m_internals;

        /**
         * {@inheritDoc}
         */
        @Override
        public void loadInternals(final StreamableOperatorInternals internals) {
            m_internals = (StreamInternalWithPortObject) internals;
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void runIntermediate(final PortInput[] inputs, final ExecutionContext exec) throws Exception {
            // count number of rows
            long count = 0;
            final RowInput rowInput = (RowInput) inputs[DATA_PORT];
            while (rowInput.poll() != null) {
                count++;
            }
            if (inputs[RULE_PORT] instanceof RowInput) {
                final RowInput ruleInput = (RowInput) inputs[RULE_PORT];
                final Pair<ColumnRearranger, PortObject> pair = createColumnRearranger(rowInput.getDataTableSpec(), ruleInput);
                final ColumnRearranger rearranger = pair.getFirst();
                final DataTableSpec spec = rearranger.createSpec();
                m_internals.setTableSpec(spec);
                if (pair.getSecond() instanceof PMMLPortObject) {
                    PMMLPortObject po = (PMMLPortObject) pair.getSecond();
                    m_internals.setObject(po);
                } else {
                    m_internals.setObject(null);
                }
            }
            m_internals.setRowCount(count);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public StreamableOperatorInternals saveInternals() {
            return m_internals;
        }

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            if (m_internals.getTableSpec() != null) {
                m_rowCount = m_internals.getRowCount();
            }
            final Pair<ColumnRearranger, PortObject> pair = createColumnRearranger((DataTableSpec) inSpecs[DATA_PORT], (RowInput) inputs[RULE_PORT]);
            pair.getFirst().createStreamableFunction(0, 0).runFinal(inputs, outputs, exec);
            if (pair.getSecond() != null) {
                ((PortObjectOutput) outputs[1]).setPortObject(pair.getSecond());
            }
        }
    };
}

Example 2 with ExecutionContext

use of org.knime.core.node.ExecutionContext in project knime-core by knime.

the class RuleEngineFilter2PortsNodeModel method createStreamableOperator.

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

        private SimpleStreamableOperatorInternals m_internals;

        /**
         * {@inheritDoc}
         */
        @Override
        public void loadInternals(final StreamableOperatorInternals internals) {
            m_internals = (SimpleStreamableOperatorInternals) internals;
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void runIntermediate(final PortInput[] inputs, final ExecutionContext exec) throws Exception {
            // count number of rows
            long count = 0;
            RowInput rowInput = (RowInput) inputs[DATA_PORT];
            while (rowInput.poll() != null) {
                count++;
            }
            m_internals.getConfig().addLong(CFG_ROW_COUNT, count);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public StreamableOperatorInternals saveInternals() {
            return m_internals;
        }

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            long rowCount = -1L;
            if (m_internals.getConfig().containsKey(CFG_ROW_COUNT)) {
                rowCount = m_internals.getConfig().getLong(CFG_ROW_COUNT);
            }
            m_rulesList.clear();
            final PortInput rulePort = inputs[RULE_PORT];
            if (rulePort instanceof PortObjectInput) {
                PortObjectInput poRule = (PortObjectInput) rulePort;
                m_rulesList.addAll(RuleEngineVariable2PortsNodeModel.rules((BufferedDataTable) poRule.getPortObject(), m_settings, RuleNodeSettings.RuleFilter));
            } else if (rulePort instanceof RowInput) {
                RowInput riRule = (RowInput) rulePort;
                m_rulesList.addAll(RuleEngineVariable2PortsNodeModel.rules(riRule, m_settings, RuleNodeSettings.RuleFilter));
            }
            final DataTableSpec spec = (DataTableSpec) inSpecs[DATA_PORT];
            try {
                parseRules(spec, RuleNodeSettings.RuleSplitter);
            } catch (final ParseException e) {
                throw new InvalidSettingsException(e);
            }
            final RowInput inputPartitions = (RowInput) inputs[DATA_PORT];
            final List<Rule> rules = parseRules(inputPartitions.getDataTableSpec(), RuleNodeSettings.RuleFilter);
            final RowOutput first = (RowOutput) outputs[0];
            final int nrOutPorts = getNrOutPorts();
            final RowOutput second = nrOutPorts > 1 ? (RowOutput) outputs[1] : new RowOutput() {

                @Override
                public void push(final DataRow row) throws InterruptedException {
                // do nothing
                }

                @Override
                public void close() throws InterruptedException {
                // do nothing
                }
            };
            final RowOutput[] containers = new RowOutput[] { first, second };
            final int matchIndex = m_includeOnMatch ? 0 : 1;
            final int otherIndex = 1 - matchIndex;
            try {
                final MutableLong rowIdx = new MutableLong(0L);
                final long rows = rowCount;
                final VariableProvider provider = new VariableProvider() {

                    @Override
                    public Object readVariable(final String name, final Class<?> type) {
                        return RuleEngineFilter2PortsNodeModel.this.readVariable(name, type);
                    }

                    @Override
                    @Deprecated
                    public int getRowCount() {
                        throw new UnsupportedOperationException();
                    }

                    @Override
                    public long getRowCountLong() {
                        return rows;
                    }

                    @Override
                    @Deprecated
                    public int getRowIndex() {
                        throw new UnsupportedOperationException();
                    }

                    @Override
                    public long getRowIndexLong() {
                        return rowIdx.longValue();
                    }
                };
                DataRow row;
                while ((row = inputPartitions.poll()) != null) {
                    rowIdx.increment();
                    if (rows > 0) {
                        exec.setProgress(rowIdx.longValue() / (double) rows, () -> "Adding row " + rowIdx.longValue() + " of " + rows);
                    } else {
                        exec.setMessage(() -> "Adding row " + rowIdx.longValue() + " of " + rows);
                    }
                    exec.checkCanceled();
                    boolean wasMatch = false;
                    for (Rule r : rules) {
                        if (r.getCondition().matches(row, provider).getOutcome() == MatchState.matchedAndStop) {
                            // r.getSideEffect().perform(row, provider);
                            DataValue value = r.getOutcome().getComputedResult(row, provider);
                            if (value instanceof BooleanValue) {
                                final BooleanValue bv = (BooleanValue) value;
                                containers[bv.getBooleanValue() ? matchIndex : otherIndex].push(row);
                            } else {
                                containers[matchIndex].push(row);
                            }
                            wasMatch = true;
                            break;
                        }
                    }
                    if (!wasMatch) {
                        containers[otherIndex].push(row);
                    }
                }
            } finally {
                try {
                    second.close();
                } finally {
                    first.close();
                }
            }
        }
    };
}

Example 3 with ExecutionContext

use of org.knime.core.node.ExecutionContext in project knime-core by knime.

the class TimeMissValueNodeModel method execute.

/**
 * {@inheritDoc}
 */
@Override
protected BufferedDataTable[] execute(final BufferedDataTable[] inData, final ExecutionContext exec) throws Exception {
    ExecutionContext createExec = exec.createSubExecutionContext(0.4);
    DataTableSpec spec = inData[0].getDataTableSpec();
    double maxRow = inData[0].getRowCount();
    double currRow = 0;
    Map<String, TSMissVHandler> nameToMVHandler = checkInputAndCreateHandlerMap(spec);
    Map<String, Integer> nameToInt = findColumns(spec, nameToMVHandler);
    if (nameToMVHandler.isEmpty()) {
        return inData;
    }
    for (DataRow row : inData[0]) {
        RowKey key = row.getKey();
        for (String s : nameToInt.keySet()) {
            nameToMVHandler.get(s).incomingValue(key, row.getCell(nameToInt.get(s)));
        }
        createExec.checkCanceled();
        createExec.setProgress(++currRow / maxRow, "Preprocessing... Row " + row.getKey().getString());
    }
    for (String s : nameToMVHandler.keySet()) {
        nameToMVHandler.get(s).close();
    }
    ExecutionContext builtExec = exec.createSubExecutionContext(0.6);
    ColumnRearranger colR = createColumnRearranger(nameToMVHandler, nameToInt, inData[0].getDataTableSpec());
    BufferedDataTable outTable = exec.createColumnRearrangeTable(inData[0], colR, builtExec);
    return new BufferedDataTable[] { outTable };
}

Example 4 with ExecutionContext

use of org.knime.core.node.ExecutionContext in project knime-core by knime.

the class RuleEngineNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    final DataTableSpec spec = (DataTableSpec) inSpecs[0];
    final List<Rule> parsedRules;
    try {
        parsedRules = parseRules(spec, RuleNodeSettings.RuleEngine);
    } catch (final ParseException e) {
        throw new InvalidSettingsException(e);
    }
    return new StreamableOperator() {

        private SimpleStreamableOperatorInternals m_internals;

        /**
         * {@inheritDoc}
         */
        @Override
        public void loadInternals(final StreamableOperatorInternals internals) {
            m_internals = (SimpleStreamableOperatorInternals) internals;
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void runIntermediate(final PortInput[] inputs, final ExecutionContext exec) throws Exception {
            // count number of rows
            long count = 0;
            RowInput rowInput = (RowInput) inputs[0];
            while (rowInput.poll() != null) {
                count++;
            }
            m_internals.getConfig().addLong(CFG_ROW_COUNT, count);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public StreamableOperatorInternals saveInternals() {
            return m_internals;
        }

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            long rowCount = -1L;
            if (m_internals.getConfig().containsKey(CFG_ROW_COUNT)) {
                rowCount = m_internals.getConfig().getLong(CFG_ROW_COUNT);
            }
            createRearranger(((RowInput) inputs[0]).getDataTableSpec(), parsedRules, rowCount, false).createStreamableFunction(0, 0).runFinal(inputs, outputs, exec);
        }
    };
}

Example 5 with ExecutionContext

use of org.knime.core.node.ExecutionContext in project knime-core by knime.

the class PMMLRuleEditorNodeModel method createStreamableOperator.

/**
 * {@inheritDoc}
 */
@Override
public StreamableOperator createStreamableOperator(final PartitionInfo partitionInfo, final PortObjectSpec[] inSpecs) throws InvalidSettingsException {
    final DataTableSpec tableSpec = (DataTableSpec) inSpecs[0];
    return new StreamableOperator() {

        private ColumnRearranger m_rearrangerx;

        private PMMLPortObject m_portObject;

        {
            try {
                final PMMLDocument doc = PMMLDocument.Factory.newInstance();
                final PMML pmml = doc.addNewPMML();
                RuleSetModel ruleSetModel = pmml.addNewRuleSetModel();
                RuleSet ruleSet = ruleSetModel.addNewRuleSet();
                PMMLRuleParser parser = new PMMLRuleParser(tableSpec, getAvailableInputFlowVariables());
                m_rearrangerx = createRearranger(tableSpec, ruleSet, parser);
            } catch (ParseException e) {
                throw new InvalidSettingsException(e);
            }
        }

        @Override
        public void runFinal(final PortInput[] inputs, final PortOutput[] outputs, final ExecutionContext exec) throws Exception {
            m_rearrangerx.createStreamableFunction(0, 0).runFinal(inputs, outputs, exec);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void loadInternals(final StreamableOperatorInternals internals) {
            super.loadInternals(internals);
            m_portObject = ((StreamInternalForPMMLPortObject) internals).getObject();
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public StreamableOperatorInternals saveInternals() {
            return createInitialStreamableOperatorInternals().setObject(m_portObject);
        }
    };
}