Java Configuration.getStrings方法代碼示例

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Creates an SSLFactory.
 *
 * @param mode SSLFactory mode, client or server.
 * @param conf Hadoop configuration from where the SSLFactory configuration
 * will be read.
 */
public SSLFactory(Mode mode, Configuration conf) {
  this.conf = conf;
  if (mode == null) {
    throw new IllegalArgumentException("mode cannot be NULL");
  }
  this.mode = mode;
  requireClientCert = conf.getBoolean(SSL_REQUIRE_CLIENT_CERT_KEY,
                                      DEFAULT_SSL_REQUIRE_CLIENT_CERT);
  Configuration sslConf = readSSLConfiguration(mode);

  Class<? extends KeyStoresFactory> klass
    = conf.getClass(KEYSTORES_FACTORY_CLASS_KEY,
                    FileBasedKeyStoresFactory.class, KeyStoresFactory.class);
  keystoresFactory = ReflectionUtils.newInstance(klass, sslConf);

  enabledProtocols = conf.getStrings(SSL_ENABLED_PROTOCOLS,
      DEFAULT_SSL_ENABLED_PROTOCOLS);
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Create the ManagerFactory instances that should populate
 * the factories list.
 */
private void instantiateFactories(Configuration conf) {
  loadManagersFromConfDir(conf);
  String [] classNameArray =
      conf.getStrings(FACTORY_CLASS_NAMES_KEY,
          DEFAULT_FACTORY_CLASS_NAMES_ARR);

  for (String className : classNameArray) {
    try {
      className = className.trim(); // Ignore leading/trailing whitespace.
      ManagerFactory factory = ReflectionUtils.newInstance(
          (Class<? extends ManagerFactory>)
          conf.getClassByName(className), conf);
      LOG.debug("Loaded manager factory: " + className);
      factories.add(factory);
    } catch (ClassNotFoundException cnfe) {
      LOG.error("Could not load ManagerFactory " + className
          + " (not found)");
    }
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Retrieve a list of key value pairs from configuration, stored under the provided key
 *
 * @param conf      configuration to retrieve kvps from
 * @param key       key under which the key values are stored
 * @param delimiter character used to separate each kvp
 * @return the list of kvps stored under key in conf, or null if the key isn't present.
 * @see #setKeyValues(Configuration, String, Collection, char)
 */
public static List<Map.Entry<String, String>> getKeyValues(Configuration conf, String key,
    char delimiter) {
  String[] kvps = conf.getStrings(key);

  if (kvps == null) {
    return null;
  }

  List<Map.Entry<String, String>> rtn = Lists.newArrayList();

  for (String kvp : kvps) {
    String[] splitKvp = StringUtils.split(kvp, delimiter);

    if (splitKvp.length != 2) {
      throw new IllegalArgumentException(
          "Expected key value pair for configuration key '" + key + "'" + " to be of form '<key>"
              + delimiter + "<value>; was " + kvp + " instead");
    }

    rtn.add(new AbstractMap.SimpleImmutableEntry<String, String>(splitKvp[0], splitKvp[1]));
  }
  return rtn;
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
public static NodeHealthScriptRunner getNodeHealthScriptRunner(Configuration conf) {
  String nodeHealthScript = 
      conf.get(YarnConfiguration.NM_HEALTH_CHECK_SCRIPT_PATH);
  if(!NodeHealthScriptRunner.shouldRun(nodeHealthScript)) {
    LOG.info("Abey khali");
    return null;
  }
  long nmCheckintervalTime = conf.getLong(
      YarnConfiguration.NM_HEALTH_CHECK_INTERVAL_MS,
      YarnConfiguration.DEFAULT_NM_HEALTH_CHECK_INTERVAL_MS);
  long scriptTimeout = conf.getLong(
      YarnConfiguration.NM_HEALTH_CHECK_SCRIPT_TIMEOUT_MS,
      YarnConfiguration.DEFAULT_NM_HEALTH_CHECK_SCRIPT_TIMEOUT_MS);
  String[] scriptArgs = conf.getStrings(
      YarnConfiguration.NM_HEALTH_CHECK_SCRIPT_OPTS, new String[] {});
  return new NodeHealthScriptRunner(nodeHealthScript,
      nmCheckintervalTime, scriptTimeout, scriptArgs);
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/** 
* test method configureDistCacheFiles
* 
*/
 @Test  (timeout=2000)
 public void testDistCacheEmulator() throws Exception {

   Configuration conf = new Configuration();
   configureDummyDistCacheFiles(conf);
   File ws = new File("target" + File.separator + this.getClass().getName());
   Path ioPath = new Path(ws.getAbsolutePath());

   DistributedCacheEmulator dce = new DistributedCacheEmulator(conf, ioPath);
   JobConf jobConf = new JobConf(conf);
   jobConf.setUser(UserGroupInformation.getCurrentUser().getShortUserName());
   File fin=new File("src"+File.separator+"test"+File.separator+"resources"+File.separator+"data"+File.separator+"wordcount.json");
   dce.init(fin.getAbsolutePath(), JobCreator.LOADJOB, true);
   dce.configureDistCacheFiles(conf, jobConf);
   
   String[] caches=conf.getStrings(MRJobConfig.CACHE_FILES);
   String[] tmpfiles=conf.getStrings("tmpfiles");
   // this method should fill caches AND tmpfiles  from MRJobConfig.CACHE_FILES property 
   assertEquals(6, ((caches==null?0:caches.length)+(tmpfiles==null?0:tmpfiles.length)));
 }
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private void registerCustomFilter(Configuration conf) {
  String[] filterList = conf.getStrings(Constants.CUSTOM_FILTERS);
  if (filterList != null) {
    for (String filterClass : filterList) {
      String[] filterPart = filterClass.split(":");
      if (filterPart.length != 2) {
        LOG.warn(
          "Invalid filter specification " + filterClass + " - skipping");
      } else {
        ParseFilter.registerFilter(filterPart[0], filterPart[1]);
      }
    }
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
static Map<String, String> getSaslProperties(Configuration conf) {
  Map<String, String> saslProps =new TreeMap<String, String>();
  String[] qop = conf.getStrings(HADOOP_RPC_PROTECTION_NON_WHITELIST,
      QualityOfProtection.PRIVACY.toString());

  for (int i=0; i < qop.length; i++) {
    qop[i] = QualityOfProtection.valueOf(
        StringUtils.toUpperCase(qop[i])).getSaslQop();
  }

  saslProps.put(Sasl.QOP, StringUtils.join(",", qop));
  saslProps.put(Sasl.SERVER_AUTH, "true");

  return saslProps;
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private static long[] getFileSizes(Configuration conf, String key) {
  String[] strs = conf.getStrings(key);
  if (strs == null) {
    return null;
  }
  long[] result = new long[strs.length];
  for (int i = 0; i < strs.length; ++i) {
    result[i] = Long.parseLong(strs[i]);
  }
  return result;
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Configure the mapping by extracting any mappings defined in the
 * {@link #KEY_HADOOP_CONFIGURED_NODE_MAPPING} field
 * @param conf new configuration
 */
@Override
public void setConf(Configuration conf) {
  super.setConf(conf);
  if (conf != null) {
    String[] mappings = conf.getStrings(KEY_HADOOP_CONFIGURED_NODE_MAPPING);
    if (mappings != null) {
      for (String str : mappings) {
        String host = str.substring(0, str.indexOf('='));
        String rack = str.substring(str.indexOf('=') + 1);
        addNodeToRack(host, rack);
      }
    }
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * <p>
 * Serializations are found by reading the <code>io.serializations</code>
 * property from <code>conf</code>, which is a comma-delimited list of
 * classnames. 
 * </p>
 */
public SerializationFactory(Configuration conf) {
  super(conf);
  for (String serializerName : conf.getStrings("io.serializations", 
    new String[]{"org.apache.hadoop.io.serializer.WritableSerialization"})) {
    add(conf, serializerName);
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private static long[] getFileSizes(Configuration conf, String key) {
  String[] strs = conf.getStrings(key);
  if (strs == null) {
    return null;
  }
  long[] result = new long[strs.length];
  for(int i=0; i < strs.length; ++i) {
    result[i] = Long.parseLong(strs[i]);
  }
  return result;
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Adds the option to pre-load filters at startup.
 *
 * @param conf  The current configuration instance.
 */
protected static void registerFilters(Configuration conf) {
  String[] filters = conf.getStrings("hbase.thrift.filters");
  if(filters != null) {
    for(String filterClass: filters) {
      String[] filterPart = filterClass.split(":");
      if(filterPart.length != 2) {
        log.warn("Invalid filter specification " + filterClass + " - skipping");
      } else {
        ParseFilter.registerFilter(filterPart[0], filterPart[1]);
      }
    }
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Return the ZK Quorum servers string given the specified configuration
 *
 * @param conf
 * @return Quorum servers String
 */
private static String getZKQuorumServersStringFromHbaseConfig(Configuration conf) {
  String defaultClientPort = Integer.toString(
      conf.getInt(HConstants.ZOOKEEPER_CLIENT_PORT, HConstants.DEFAULT_ZOOKEPER_CLIENT_PORT));

  // Build the ZK quorum server string with "server:clientport" list, separated by ','
  final String[] serverHosts =
      conf.getStrings(HConstants.ZOOKEEPER_QUORUM, HConstants.LOCALHOST);
  return buildZKQuorumServerString(serverHosts, defaultClientPort);
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
/**
 * Run test on configured codecs to make sure supporting libs are in place.
 *
 * @param c
 * @throws IOException
 */
private static void checkCodecs(final Configuration c) throws IOException {
  // check to see if the codec list is available:
  String[] codecs = c.getStrings("hbase.regionserver.codecs", (String[]) null);
  if (codecs == null) return;
  for (String codec : codecs) {
    if (!CompressionTest.testCompression(codec)) {
      throw new IOException(
          "Compression codec " + codec + " not supported, aborting RS construction");
    }
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
@Test
public void testCannotCreatePageBlobByDefault() throws Exception {

  // Verify that the page blob directory list configuration setting
  // is not set in the default configuration.
  Configuration conf = new Configuration();
  String[] rawPageBlobDirs =
      conf.getStrings(AzureNativeFileSystemStore.KEY_PAGE_BLOB_DIRECTORIES);
  assertTrue(rawPageBlobDirs == null);
}