public String parse(final Configuration c) {
// Note that we do not simply grab the property
// HConstants.ZOOKEEPER_QUORUM from the HBaseConfiguration because the
// user may be using a zoo.cfg file.
Properties zkProps = ZKConfig.makeZKProps(c);
String clientPort = null;
List<String> hosts = new ArrayList<String>();
for (Entry<Object, Object> entry : zkProps.entrySet()) {
String key = entry.getKey().toString().trim();
String value = entry.getValue().toString().trim();
if (key.startsWith("server.")) {
String[] parts = value.split(":");
hosts.add(parts[0]);
} else if (key.endsWith("clientPort")) {
clientPort = value;
}
}
if (hosts.isEmpty() || clientPort == null) return null;
StringBuilder host = new StringBuilder();
for (int i = 0; i < hosts.size(); i++) {
if (i > 0) host.append("," + hosts.get(i));
else host.append(hosts.get(i));
host.append(":");
host.append(clientPort);
}
return host.toString();
}
@Test
public void testZKConfigLoading() throws Exception {
Configuration conf = HBaseConfiguration.create();
// Test that we read only from the config instance
// (i.e. via hbase-default.xml and hbase-site.xml)
conf.setInt(HConstants.ZOOKEEPER_CLIENT_PORT, 2181);
Properties props = ZKConfig.makeZKProps(conf);
assertEquals(
"Property client port should have been default from the HBase config",
"2181",
props.getProperty("clientPort"));
}