Examples with Pattern java.util.regex.Pattern used on opensource projects

Example 41 with Pattern

use of java.util.regex.Pattern in project kafka by apache.

the class TopologyBuilderTest method testAddMoreThanOnePatternSourceNode.

@Test
public void testAddMoreThanOnePatternSourceNode() {
    final TopologyBuilder builder = new TopologyBuilder();
    Pattern expectedPattern = Pattern.compile("topics[A-Z]|.*-\\d");
    builder.addSource("source-1", Pattern.compile("topics[A-Z]"));
    builder.addSource("source-2", Pattern.compile(".*-\\d"));
    assertEquals(expectedPattern.pattern(), builder.sourceTopicPattern().pattern());
}

Example 42 with Pattern

use of java.util.regex.Pattern in project kafka by apache.

the class TopologyBuilderTest method shouldAddPatternSourceWithoutOffsetReset.

@Test
public void shouldAddPatternSourceWithoutOffsetReset() {
    final TopologyBuilder builder = new TopologyBuilder();
    final Serde<String> stringSerde = Serdes.String();
    final Pattern expectedPattern = Pattern.compile("test-.*");
    builder.addSource("source", stringSerde.deserializer(), stringSerde.deserializer(), Pattern.compile("test-.*"));
    assertEquals(expectedPattern.pattern(), builder.sourceTopicPattern().pattern());
    assertEquals(builder.earliestResetTopicsPattern().pattern(), "");
    assertEquals(builder.latestResetTopicsPattern().pattern(), "");
}

Example 43 with Pattern

use of java.util.regex.Pattern in project qpid by apache.

the class QpidQueueStats method main.

/**
     * Runs QpidQueueStats.
     * @param args the command line arguments.
     */
public static void main(final String[] args) {
    String logLevel = System.getProperty("amqj.logging.level");
    // Set default log level to FATAL rather than DEBUG.
    logLevel = (logLevel == null) ? "FATAL" : logLevel;
    System.setProperty("amqj.logging.level", logLevel);
    String[] longOpts = { "help", "broker-address=", "filter=", "sasl-mechanism=" };
    try {
        String host = "localhost";
        String connectionOptions = "{reconnect: true}";
        List<Pattern> filter = new ArrayList<Pattern>();
        GetOpt getopt = new GetOpt(args, "ha:f:", longOpts);
        List<String[]> optList = getopt.getOptList();
        for (String[] opt : optList) {
            if (opt[0].equals("-h") || opt[0].equals("--help")) {
                System.out.println(_usage);
                System.out.println(_options);
                System.exit(1);
            } else if (opt[0].equals("-a") || opt[0].equals("--broker-address")) {
                host = opt[1];
            } else if (opt[0].equals("-f") || opt[0].equals("--filter")) {
                String[] split = opt[1].split(",");
                for (String s : split) {
                    Pattern p = Pattern.compile(s);
                    filter.add(p);
                }
            } else if (opt[0].equals("--sasl-mechanism")) {
                connectionOptions = "{reconnect: true, sasl_mechs: " + opt[1] + "}";
            }
        }
        QpidQueueStats queueStats = new QpidQueueStats(host, connectionOptions, filter);
    } catch (IllegalArgumentException e) {
        System.out.println(_usage);
        System.out.println(e.getMessage());
        System.exit(1);
    }
    BufferedReader commandLine = new BufferedReader(new InputStreamReader(System.in));
    try {
        // Blocks here until return is pressed
        String s = commandLine.readLine();
        System.exit(0);
    } catch (IOException e) {
        System.out.println("QpidQueueStats main(): IOException: " + e.getMessage());
    }
}

Example 44 with Pattern

use of java.util.regex.Pattern in project qpid by apache.

the class QueueFuse method onEvent.

/**
     * Main Event handler.
     * @param wi a QMF2 WorkItem object
     */
public void onEvent(final WorkItem wi) {
    if (wi instanceof EventReceivedWorkItem) {
        EventReceivedWorkItem item = (EventReceivedWorkItem) wi;
        Agent agent = item.getAgent();
        QmfEvent event = item.getEvent();
        String className = event.getSchemaClassId().getClassName();
        if (className.equals("queueDeclare")) {
            updateQueueCache();
        } else if (className.equals("queueThresholdExceeded")) {
            String queueName = event.getStringValue("qName");
            boolean matches = false;
            for (Pattern x : _filter) {
                // Check the queue name against the regexes in the filter List (if any)
                Matcher m = x.matcher(queueName);
                if (m.find()) {
                    matches = true;
                    break;
                }
            }
            if (_filter.isEmpty() || matches) {
                // If there's no filter enabled or the filter matches the queue name we call purgeQueue().
                long msgDepth = event.getLongValue("msgDepth");
                purgeQueue(queueName, msgDepth);
            }
        }
    }
}

Example 45 with Pattern

use of java.util.regex.Pattern in project hive by apache.

the class GenericUDFRegExp method evaluate.

@Override
public Object evaluate(DeferredObject[] arguments) throws HiveException {
    String s = getStringValue(arguments, 0, converters);
    if (s == null) {
        return null;
    }
    String regex;
    if (isRegexConst) {
        regex = regexConst;
    } else {
        regex = getStringValue(arguments, 1, converters);
    }
    if (regex == null) {
        return null;
    }
    if (regex.length() == 0) {
        if (!warned) {
            warned = true;
            LOG.warn(getClass().getSimpleName() + " regex is empty. Additional " + "warnings for an empty regex will be suppressed.");
        }
        output.set(false);
        return output;
    }
    Pattern p;
    if (isRegexConst) {
        p = patternConst;
    } else {
        p = Pattern.compile(regex);
    }
    Matcher m = p.matcher(s);
    output.set(m.find(0));
    return output;
}