Examples with JexlContext org.apache.commons.jexl2.JexlContext used on opensource projects

Example 41 with JexlContext

use of org.apache.commons.jexl2.JexlContext in project dbeaver by serge-rider.

the class DBVUtils method evaluateDataExpression.

public static Object evaluateDataExpression(DBDAttributeBinding[] allAttributes, Object[] row, JexlExpression expression, String attributeName) {
    Map<String, Object> nsList = getExpressionNamespaces();
    JexlContext context = new JexlContext() {

        @Override
        public Object get(String s) {
            Object ns = nsList.get(s);
            if (ns != null) {
                return ns;
            }
            if (s.equals(attributeName)) {
                return null;
            }
            for (DBDAttributeBinding attr : allAttributes) {
                if (s.equals(attr.getLabel())) {
                    return DBUtils.getAttributeValue(attr, allAttributes, row);
                }
            }
            return null;
        }

        @Override
        public void set(String s, Object o) {
        }

        @Override
        public boolean has(String s) {
            return get(s) != null;
        }
    };
    try {
        return expression.evaluate(context);
    } catch (Exception e) {
        return GeneralUtils.getExpressionParseMessage(e);
    }
}

Example 42 with JexlContext

use of org.apache.commons.jexl2.JexlContext in project dbeaver by serge-rider.

the class DashboardUpdater method fetchDashboardMapData.

private void fetchDashboardMapData(DBRProgressMonitor monitor, DashboardContainer dashboard) {
    MapQueryInfo mqi = getMapQueryData(dashboard);
    if (mqi == null) {
        return;
    }
    Map<String, Object> mapValue = mqi.mapValue;
    if (mapValue != null) {
        String[] mapKeys = dashboard.getMapKeys();
        String[] mapLabels = dashboard.getMapLabels();
        if (!ArrayUtils.isEmpty(mapKeys)) {
            if (ArrayUtils.isEmpty(mapLabels)) {
                mapLabels = mapKeys;
            }
            DashboardDataset dataset = new DashboardDataset(mapLabels);
            Object[] mapValues = new Object[mapKeys.length];
            for (int i = 0; i < mapKeys.length; i++) {
                Object value = mapValue.get(mapKeys[i]);
                Number numValue;
                if (value instanceof Number) {
                    numValue = (Number) value;
                } else {
                    numValue = CommonUtils.toDouble(value);
                }
                mapValues[i] = numValue;
            }
            Date timestamp = mqi.timestamp;
            if (timestamp == null) {
                timestamp = new Date();
            }
            dataset.addRow(new DashboardDatasetRow(timestamp, mapValues));
            dashboard.updateDashboardData(dataset);
        } else if (dashboard.getMapFormula() != null) {
            Map<String, Object> ciMap = new HashMap<>(mapValue.size());
            for (Map.Entry<String, Object> me : mapValue.entrySet()) {
                ciMap.put(me.getKey().toLowerCase(Locale.ENGLISH), me.getValue());
            }
            JexlContext context = new JexlContext() {

                @Override
                public Object get(String name) {
                    if (name.equals("map")) {
                        return ciMap;
                    } else if (name.equals("dashboard")) {
                        return dashboard;
                    }
                    return null;
                }

                @Override
                public void set(String name, Object value) {
                    log.warn("Set is not implemented in DBX model");
                }

                @Override
                public boolean has(String name) {
                    return name.equals("object") || name.equals("dashboard");
                }
            };
            Object result = dashboard.getMapFormula().evaluate(context);
            if (result instanceof Number) {
                String columnName = dashboard.getDashboardTitle();
                if (!ArrayUtils.isEmpty(mapLabels)) {
                    columnName = mapLabels[0];
                }
                DashboardDataset dataset = new DashboardDataset(new String[] { columnName });
                dataset.addRow(new DashboardDatasetRow(new Date(), new Object[] { result }));
                dashboard.updateDashboardData(dataset);
            } else {
                log.debug("Wrong expression result: " + result);
            }
        }
    }
}

Example 43 with JexlContext

use of org.apache.commons.jexl2.JexlContext in project dbeaver by dbeaver.

the class DBVUtils method evaluateDataExpression.

public static Object evaluateDataExpression(DBDAttributeBinding[] allAttributes, Object[] row, JexlExpression expression, String attributeName) {
    Map<String, Object> nsList = getExpressionNamespaces();
    JexlContext context = new JexlContext() {

        @Override
        public Object get(String s) {
            Object ns = nsList.get(s);
            if (ns != null) {
                return ns;
            }
            if (s.equals(attributeName)) {
                return null;
            }
            for (DBDAttributeBinding attr : allAttributes) {
                if (s.equals(attr.getLabel())) {
                    return DBUtils.getAttributeValue(attr, allAttributes, row);
                }
            }
            return null;
        }

        @Override
        public void set(String s, Object o) {
        }

        @Override
        public boolean has(String s) {
            return get(s) != null;
        }
    };
    try {
        return expression.evaluate(context);
    } catch (Exception e) {
        return GeneralUtils.getExpressionParseMessage(e);
    }
}

Example 44 with JexlContext

use of org.apache.commons.jexl2.JexlContext in project shifu by ShifuML.

the class JexlTest method testJavaNull.

@Test
public void testJavaNull() {
    JexlEngine jexl = new JexlEngine();
    String jexlExp = "is_bad_new != null";
    String jexlExpEqual = "is_bad_new == null";
    Expression e = jexl.createExpression(jexlExp);
    Expression exp = jexl.createExpression(jexlExpEqual);
    JexlContext jc = new MapContext();
    jc.set("is_bad_new", null);
    Assert.assertEquals(Boolean.FALSE, e.evaluate(jc));
    Assert.assertEquals(Boolean.TRUE, exp.evaluate(jc));
    jc.set("is_bad_new", new Object());
    Assert.assertEquals(Boolean.TRUE, e.evaluate(jc));
    Assert.assertEquals(Boolean.FALSE, exp.evaluate(jc));
}

Example 45 with JexlContext

use of org.apache.commons.jexl2.JexlContext in project shifu by ShifuML.

the class JexlTest method testMathMethod.

@Test
public void testMathMethod() {
    JexlEngine jexl = new JexlEngine();
    String jexlExp = "NumberUtils.max(a, b, c)";
    Expression e = jexl.createExpression(jexlExp);
    JexlContext jc = new MapContext();
    jc.set("NumberUtils", new NumberUtils());
    jc.set("a", 7);
    jc.set("b", 5);
    jc.set("c", 9);
    Assert.assertEquals(9, e.evaluate(jc));
}