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

Example 26 with MapContext

use of org.apache.commons.jexl3.MapContext in project nutch by apache.

the class JexlExchange method match.

/**
 * Determines if the document must go to the related index writers.
 *
 * @param doc The given document.
 * @return True if the given document match with this exchange. False in other case.
 */
@Override
public boolean match(NutchDocument doc) {
    // Create a context and add data
    JexlContext jexlContext = new MapContext();
    jexlContext.set("doc", doc);
    try {
        if (Boolean.TRUE.equals(expression.execute(jexlContext))) {
            return true;
        }
    } catch (Exception ignored) {
    }
    return false;
}

Example 27 with MapContext

use of org.apache.commons.jexl3.MapContext in project nutch by apache.

the class CrawlDatum method execute.

public boolean execute(JexlScript expr, String url) {
    if (expr != null && url != null) {
        // Create a context and add data
        JexlContext jcontext = new MapContext();
        // https://issues.apache.org/jira/browse/NUTCH-2229
        jcontext.set("url", url);
        jcontext.set("status", getStatusName(getStatus()));
        jcontext.set("fetchTime", (long) (getFetchTime()));
        jcontext.set("modifiedTime", (long) (getModifiedTime()));
        jcontext.set("retries", getRetriesSinceFetch());
        jcontext.set("interval", Integer.valueOf(getFetchInterval()));
        jcontext.set("score", getScore());
        jcontext.set("signature", StringUtil.toHexString(getSignature()));
        // Set metadata variables
        for (Map.Entry<Writable, Writable> entry : getMetaData().entrySet()) {
            Object value = entry.getValue();
            Text tkey = (Text) entry.getKey();
            if (value instanceof FloatWritable) {
                FloatWritable fvalue = (FloatWritable) value;
                jcontext.set(tkey.toString(), fvalue.get());
            }
            if (value instanceof IntWritable) {
                IntWritable ivalue = (IntWritable) value;
                jcontext.set(tkey.toString(), ivalue.get());
            }
            if (value instanceof Text) {
                Text tvalue = (Text) value;
                jcontext.set(tkey.toString().replace("-", "_"), tvalue.toString());
            }
            if (value instanceof ProtocolStatus) {
                ProtocolStatus pvalue = (ProtocolStatus) value;
                jcontext.set(tkey.toString().replace("-", "_"), pvalue.toString());
            }
        }
        try {
            if (Boolean.TRUE.equals(expr.execute(jcontext))) {
                return true;
            }
        } catch (Exception e) {
        // 
        }
    }
    return false;
}

Example 28 with MapContext

use of org.apache.commons.jexl3.MapContext in project waltz by khartec.

the class ReferenceBuilderNamespaceTest method evalTest.

@Test
public void evalTest() {
    JexlBuilder builder = new JexlBuilder();
    JexlEngine jexl = builder.create();
    JexlExpression expr = jexl.createExpression("x == 'IN_SCOPE' && y == 10");
    MapContext ctx1 = new MapContext();
    ctx1.set("x", "IN_SCOPE");
    ctx1.set("y", 10);
    MapContext ctx2 = new MapContext();
    ctx2.set("x", "IN_SCOPE");
    ctx2.set("y", 12);
    System.out.printf("Result1: [%s]\n", expr.evaluate(ctx1));
    System.out.printf("Result2: [%s]\n", expr.evaluate(ctx2));
}

Example 29 with MapContext

use of org.apache.commons.jexl3.MapContext in project traccar by tananaev.

the class ComputedAttributesHandler method prepareContext.

private MapContext prepareContext(Position position) {
    MapContext result = new MapContext();
    if (includeDeviceAttributes) {
        Device device = identityManager.getById(position.getDeviceId());
        if (device != null) {
            for (Object key : device.getAttributes().keySet()) {
                result.set((String) key, device.getAttributes().get(key));
            }
        }
    }
    Set<Method> methods = new HashSet<>(Arrays.asList(position.getClass().getMethods()));
    methods.removeAll(Arrays.asList(Object.class.getMethods()));
    for (Method method : methods) {
        if (method.getName().startsWith("get") && method.getParameterTypes().length == 0) {
            String name = Character.toLowerCase(method.getName().charAt(3)) + method.getName().substring(4);
            try {
                if (!method.getReturnType().equals(Map.class)) {
                    result.set(name, method.invoke(position));
                } else {
                    for (Object key : ((Map) method.invoke(position)).keySet()) {
                        result.set((String) key, ((Map) method.invoke(position)).get(key));
                    }
                }
            } catch (IllegalAccessException | InvocationTargetException error) {
                LOGGER.warn("Attribute reflection error", error);
            }
        }
    }
    return result;
}

Example 30 with MapContext

use of org.apache.commons.jexl3.MapContext in project opennms by OpenNMS.

the class ExpressionConfigWrapper method evaluate.

@Override
public double evaluate(Map<String, Double> values) throws ThresholdExpressionException {
    // Add all of the variable values to the script context
    Map<String, Object> context = new HashMap<String, Object>();
    context.putAll(values);
    // To workaround NMS-5019
    context.put("datasources", new HashMap<String, Double>(values));
    context.put("math", new MathBinding());
    double result = Double.NaN;
    try {
        // Fetch an instance of the JEXL script engine to evaluate the script expression
        Object resultObject = new JexlEngine().createExpression(m_expression.getExpression()).evaluate(new MapContext(context));
        result = Double.parseDouble(resultObject.toString());
    } catch (Throwable e) {
        throw new ThresholdExpressionException("Error while evaluating expression " + m_expression.getExpression() + ": " + e.getMessage(), e);
    }
    return result;
}