Examples with JexlExpression org.apache.commons.jexl3.JexlExpression used on opensource projects

Example 26 with JexlExpression

use of org.apache.commons.jexl3.JexlExpression in project dbeaver by serge-rider.

the class DBVUtils method executeExpression.

public static Object executeExpression(DBVEntityAttribute attribute, DBDAttributeBinding[] allAttributes, Object[] row) {
    String exprString = attribute.getExpression();
    if (CommonUtils.isEmpty(exprString)) {
        return null;
    }
    JexlExpression expression = attribute.getParsedExpression();
    if (expression == null) {
        return null;
    }
    return evaluateDataExpression(allAttributes, row, expression, attribute.getName());
}

Example 27 with JexlExpression

use of org.apache.commons.jexl3.JexlExpression 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 28 with JexlExpression

use of org.apache.commons.jexl3.JexlExpression 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 29 with JexlExpression

use of org.apache.commons.jexl3.JexlExpression in project dbeaver by dbeaver.

the class DBVUtils method executeExpression.

public static Object executeExpression(DBVEntityAttribute attribute, DBDAttributeBinding[] allAttributes, Object[] row) {
    String exprString = attribute.getExpression();
    if (CommonUtils.isEmpty(exprString)) {
        return null;
    }
    JexlExpression expression = attribute.getParsedExpression();
    if (expression == null) {
        return null;
    }
    return evaluateDataExpression(allAttributes, row, expression, attribute.getName());
}

Example 30 with JexlExpression

use of org.apache.commons.jexl3.JexlExpression in project nifi by apache.

the class ExtractCCDAAttributes method processElement.

/**
 * Process elements children based on the parser mapping.
 * Any String values are added to attributes
 * For List, the processList method is called to iterate and process
 * For an Object this method is called recursively
 * While adding to the attributes the key is prefixed by parent
 * @param parent       parent key for this element, used as a prefix for attribute key
 * @param element      element to be processed
 * @param attributes   map of attributes to populate
 * @return             map of processed data, value can contain String or Map of Strings
 */
protected Map<String, Object> processElement(String parent, Object element, Map<String, String> attributes) {
    final StopWatch stopWatch = new StopWatch(true);
    Map<String, Object> map = new LinkedHashMap<String, Object>();
    String name = element.getClass().getName();
    // get JEXL mappings for this element
    Map<String, String> jexlMap = processMap.get(name);
    if (jexlMap == null) {
        getLogger().warn("Missing mapping for element " + name);
        return null;
    }
    for (Entry<String, String> entry : jexlMap.entrySet()) {
        // evaluate JEXL for each child element
        jexlCtx.set("element", element);
        JexlExpression jexlExpr = jexl.createExpression(entry.getValue());
        Object value = jexlExpr.evaluate(jexlCtx);
        String key = entry.getKey();
        String prefix = parent != null ? parent + "." + key : key;
        addElement(map, prefix, key, value, attributes);
    }
    stopWatch.stop();
    getLogger().debug("Processed {} in {}", new Object[] { name, stopWatch.getDuration(TimeUnit.MILLISECONDS) });
    return map;
}