Source:
<code>public void execute(Tuple tuple) { String url = tuple.getStringByField("url"); Metadata metadata = null; if (tuple.contains("metadata")) metadata = (Metadata) tuple.getValueByField("metadata"); else metadata = Metadata.empty; String partitionKey = null; String host = ""; if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_IP) <START> && metadata != null) { <END> String ip_provided = metadata.getFirstValue("ip"); if (StringUtils.isNotBlank(ip_provided)) { partitionKey = ip_provided; eventCounter.scope("provided").incrBy(1); } } if (partitionKey == null) { URL u; try { u = new URL(url); host = u.getHost(); } catch (MalformedURLException e1) { eventCounter.scope("Invalid URL").incrBy(1); LOG.warn("Invalid URL: {}", url); _collector.ack(tuple); return; } } if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_HOST)) partitionKey = host; else if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_DOMAIN)) { partitionKey = PaidLevelDomain.getPLD(url); } if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_IP) && partitionKey == null) { partitionKey = cache.get(host); if (partitionKey != null) { eventCounter.scope("from cache").incrBy(1); } else { try { long start = System.currentTimeMillis(); final InetAddress addr = InetAddress.getByName(host); partitionKey = addr.getHostAddress(); long end = System.currentTimeMillis(); LOG.debug("Resolved IP in msec for : {}", partitionKey, (end - start), url); cache.put(host, partitionKey); } catch (final Exception e) { eventCounter.scope("Unable to resolve IP").incrBy(1); LOG.warn("Unable to resolve IP for: {}", host); _collector.ack(tuple); return; } } } LOG.debug("Partition Key for: > {}", url, partitionKey); _collector.emit(tuple, new Values(url, partitionKey, metadata)); _collector.ack(tuple); }</code><technical_language>I metadata longer null</technical_language>

Target:
public void execute(Tuple tuple) { String url = tuple.getStringByField("url"); Metadata metadata = null; if (tuple.contains("metadata")) metadata = (Metadata) tuple.getValueByField("metadata"); else metadata = Metadata.empty; String partitionKey = null; String host = ""; if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_IP)) { String ip_provided = metadata.getFirstValue("ip"); if (StringUtils.isNotBlank(ip_provided)) { partitionKey = ip_provided; eventCounter.scope("provided").incrBy(1); } } if (partitionKey == null) { URL u; try { u = new URL(url); host = u.getHost(); } catch (MalformedURLException e1) { eventCounter.scope("Invalid URL").incrBy(1); LOG.warn("Invalid URL: {}", url); _collector.ack(tuple); return; } } if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_HOST)) partitionKey = host; else if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_DOMAIN)) { partitionKey = PaidLevelDomain.getPLD(url); } if (mode.equalsIgnoreCase(Constants.PARTITION_MODE_IP) && partitionKey == null) { partitionKey = cache.get(host); if (partitionKey != null) { eventCounter.scope("from cache").incrBy(1); } else { try { long start = System.currentTimeMillis(); final InetAddress addr = InetAddress.getByName(host); partitionKey = addr.getHostAddress(); long end = System.currentTimeMillis(); LOG.debug("Resolved IP in msec for : {}", partitionKey, (end - start), url); cache.put(host, partitionKey); } catch (final Exception e) { eventCounter.scope("Unable to resolve IP").incrBy(1); LOG.warn("Unable to resolve IP for: {}", host); _collector.ack(tuple); return; } } } LOG.debug("Partition Key for: > {}", url, partitionKey); _collector.emit(tuple, new Values(url, partitionKey, metadata)); _collector.ack(tuple); }