Package org.apache.activemq.filter

Examples of org.apache.activemq.filter.BooleanExpression

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        Message[] messages = destination.browse();
        ArrayList<CompositeData> c = new ArrayList<CompositeData>();

        MessageEvaluationContext ctx = new MessageEvaluationContext();
        ctx.setDestination(destination.getActiveMQDestination());
        BooleanExpression selectorExpression = selector == null ? null : SelectorParser.parse(selector);

        for (int i = 0; i < messages.length; i++) {
            try {

                if (selectorExpression == null) {
                    c.add(OpenTypeSupport.convert(messages[i]));
                } else {
                    ctx.setMessageReference(messages[i]);
                    if (selectorExpression.matches(ctx)) {
                        c.add(OpenTypeSupport.convert(messages[i]));
                    }
                }

            } catch (Throwable e) {
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        Message[] messages = destination.browse();
        ArrayList<Object> answer = new ArrayList<Object>();

        MessageEvaluationContext ctx = new MessageEvaluationContext();
        ctx.setDestination(destination.getActiveMQDestination());
        BooleanExpression selectorExpression = selector == null ? null : SelectorParser.parse(selector);

        for (int i = 0; i < messages.length; i++) {
            try {
                Message message = messages[i];
                message.setReadOnlyBody(true);
                if (selectorExpression == null) {
                    answer.add(message);
                } else {
                    ctx.setMessageReference(message);
                    if (selectorExpression.matches(ctx)) {
                        answer.add(message);
                    }
                }

            } catch (Throwable e) {
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        TabularType tt = new TabularType("MessageList", "MessageList", ct, new String[] { "JMSMessageID" });
        TabularDataSupport rc = new TabularDataSupport(tt);

        MessageEvaluationContext ctx = new MessageEvaluationContext();
        ctx.setDestination(destination.getActiveMQDestination());
        BooleanExpression selectorExpression = selector == null ? null : SelectorParser.parse(selector);

        for (int i = 0; i < messages.length; i++) {
            try {
                if (selectorExpression == null) {
                    rc.put(new CompositeDataSupport(ct, factory.getFields(messages[i])));
                } else {
                    ctx.setMessageReference(messages[i]);
                    if (selectorExpression.matches(ctx)) {
                        rc.put(new CompositeDataSupport(ct, factory.getFields(messages[i])));
                    }
                }
            } catch (Throwable e) {
                LOG.warn("exception browsing destination", e);
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        } catch (InvalidSelectorException e) {
        }
    }

    protected void assertSelector(Message message, String text, boolean expected) throws JMSException {
        BooleanExpression selector = SelectorParser.parse(text);
        assertTrue("Created a valid selector", selector != null);
        MessageEvaluationContext context = new MessageEvaluationContext();
        context.setMessageReference((org.apache.activemq.command.Message)message);
        boolean value = selector.matches(context);
        assertEquals("Selector for: " + text, expected, value);
    }
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*/
public class SelectorParserTest extends TestCase {
    private static final Logger LOG = LoggerFactory.getLogger(SelectorParserTest.class);

    public void testParseXPath() throws Exception {
        BooleanExpression filter = parse("XPATH '//title[@lang=''eng'']'");
        assertTrue("Created XPath expression", filter instanceof XPathExpression);
        LOG.info("Expression: " + filter);
    }
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        for (int i = 0; i < values.length; i++) {
            String value = values[i];
            LOG.info("Parsing: " + value);

            BooleanExpression andExpression = parse(value);
            assertTrue("Created LogicExpression expression", andExpression instanceof LogicExpression);
            LogicExpression logicExpression = (LogicExpression)andExpression;
            Expression left = logicExpression.getLeft();
            Expression right = logicExpression.getRight();
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                    return true;
                }
            };
        }

        final BooleanExpression selectorExpression = SelectorParser.parse(selector);

        return new MessageReferenceFilter() {
            public boolean evaluate(ConnectionContext context, MessageReference r) throws JMSException {
                MessageEvaluationContext messageEvaluationContext = context.getMessageEvaluationContext();

                messageEvaluationContext.setMessageReference(r);
                if (messageEvaluationContext.getDestination() == null) {
                    messageEvaluationContext.setDestination(getActiveMQDestination());
                }

                return selectorExpression.matches(messageEvaluationContext);
            }
        };
    }
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        if (cache != null) {
            final String selector = cache.getSelector(dest.getActiveMQDestination().getQualifiedName());
            if (selector != null) {
                try {
                    final BooleanExpression expression = getExpression(selector);
                    matches = expression.matches(msgContext);
                } catch (Exception e) {
                    LOG.error(e.getMessage(), e);
                }
            }
        }
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        }
        return matches;
    }

    private BooleanExpression getExpression(String selector) throws Exception{
        BooleanExpression result;
        synchronized(expressionCache){
            result = expressionCache.get(selector);
            if (result == null){
                result = compileSelector(selector);
                expressionCache.put(selector,result);
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        this.selectorExpression = parseSelector(info);
        this.lastAckTime = System.currentTimeMillis();
    }

    private static BooleanExpression parseSelector(ConsumerInfo info) throws InvalidSelectorException {
        BooleanExpression rc = null;
        if (info.getSelector() != null) {
            rc = SelectorParser.parse(info.getSelector());
        }
        if (info.isNoLocal()) {
            if (rc == null) {
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Related Classes of org.apache.activemq.filter.BooleanExpression

  • org.apache.activemq.broker.jmx.DestinationView
  • org.apache.activemq.broker.region.AbstractSubscription
  • org.apache.activemq.broker.region.Queue
  • org.apache.activemq.broker.region.virtual.FilteredDestination
  • org.apache.activemq.broker.region.virtual.SelectorAwareVirtualTopicInterceptor
  • org.apache.activemq.selector.SelectorParserTest
  • org.apache.activemq.selector.SelectorTest
  • org.apache.activemq.selector.UnknownHandlingSelectorTest
  • org.apache.activemq.store.kahadb.KahaDBStore$KahaDBTopicMessageStore
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