Examples of org.apache.hadoop.hbase.CompoundConfiguration$ImmutableConfWrapper

org.apache.hadoop.hbase.CompoundConfiguration
Do a shallow merge of multiple KV configuration pools. This is a very useful utility class to easily add per-object configurations in addition to wider scope settings. This is different from Configuration.addResource() functionality, which performs a deep merge and mutates the common data structure.
The iterator on CompoundConfiguration is unmodifiable. Obtaining iterator is an expensive operation.
For clarity: the shallow merge allows the user to mutate either of the configuration objects and have changes reflected everywhere. In contrast to a deep merge, that requires you to explicitly know all applicable copies to propagate changes. WARNING: The values set in the CompoundConfiguration are do not handle Property variable substitution. However, if they are set in the underlying configuration substitutions are done.

    this.log = log;
    this.fs = fs;


    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    this.baseConf = confParam;
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(htd.getConfiguration())
      .addWritableMap(htd.getValues());
    this.flushCheckInterval = conf.getInt(MEMSTORE_PERIODIC_FLUSH_INTERVAL,
        DEFAULT_CACHE_FLUSH_INTERVAL);

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    this.region = region;
    this.family = family;
    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    // CompoundConfiguration will look for keys in reverse order of addition, so we'd
    // add global config first, then table and cf overrides, then cf metadata.
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(region.getTableDesc().getConfiguration())
      .addStringMap(family.getConfiguration())
      .addWritableMap(family.getValues());
    this.blocksize = family.getBlocksize();

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  }


  /* ---- MasterObserver implementation ---- */


  public void start(CoprocessorEnvironment env) throws IOException {
    CompoundConfiguration conf = new CompoundConfiguration();
    conf.add(env.getConfiguration());


    shouldCheckExecPermission = conf.getBoolean(AccessControlConstants.EXEC_PERMISSION_CHECKS_KEY,
      AccessControlConstants.DEFAULT_EXEC_PERMISSION_CHECKS);


    cellFeaturesEnabled = HFile.getFormatVersion(conf) >= HFile.MIN_FORMAT_VERSION_WITH_TAGS;
    if (!cellFeaturesEnabled) {
      LOG.info("A minimum HFile version of " + HFile.MIN_FORMAT_VERSION_WITH_TAGS
          + " is required to persist cell ACLs. Consider setting " + HFile.FORMAT_VERSION_KEY
          + " accordingly.");
    }


    ZooKeeperWatcher zk = null;
    if (env instanceof MasterCoprocessorEnvironment) {
      // if running on HMaster
      MasterCoprocessorEnvironment mEnv = (MasterCoprocessorEnvironment) env;
      zk = mEnv.getMasterServices().getZooKeeper();
    } else if (env instanceof RegionServerCoprocessorEnvironment) {      
      RegionServerCoprocessorEnvironment rsEnv = (RegionServerCoprocessorEnvironment) env;
      zk = rsEnv.getRegionServerServices().getZooKeeper();      
    } else if (env instanceof RegionCoprocessorEnvironment) {
      // if running at region
      regionEnv = (RegionCoprocessorEnvironment) env;
      conf.addStringMap(regionEnv.getRegion().getTableDesc().getConfiguration());
      zk = regionEnv.getRegionServerServices().getZooKeeper();
      compatibleEarlyTermination = conf.getBoolean(AccessControlConstants.CF_ATTRIBUTE_EARLY_OUT,
        AccessControlConstants.DEFAULT_ATTRIBUTE_EARLY_OUT);
    }


    // set the user-provider.
    this.userProvider = UserProvider.instantiate(env.getConfiguration());

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    this.region = region;
    this.family = family;
    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    // CompoundConfiguration will look for keys in reverse order of addition, so we'd
    // add global config first, then table and cf overrides, then cf metadata.
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(region.getTableDesc().getConfiguration())
      .addStringMap(family.getConfiguration())
      .addWritableMap(family.getValues());
    this.blocksize = family.getBlocksize();

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    this.log = log;
    this.fs = fs;


    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    this.baseConf = confParam;
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(htd.getConfiguration())
      .addWritableMap(htd.getValues());
    this.flushCheckInterval = conf.getInt(MEMSTORE_PERIODIC_FLUSH_INTERVAL,
        DEFAULT_CACHE_FLUSH_INTERVAL);

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    this.log = log;
    this.fs = fs;


    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    this.baseConf = confParam;
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(htd.getConfiguration())
      .addWritableMap(htd.getValues());
    this.flushCheckInterval = conf.getInt(MEMSTORE_PERIODIC_FLUSH_INTERVAL,
        DEFAULT_CACHE_FLUSH_INTERVAL);

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    this.region = region;
    this.family = family;
    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    // CompoundConfiguration will look for keys in reverse order of addition, so we'd
    // add global config first, then table and cf overrides, then cf metadata.
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(region.getTableDesc().getConfiguration())
      .addStringMap(family.getConfiguration())
      .addWritableMap(family.getValues());
    this.blocksize = family.getBlocksize();

View Full Code Here

  }


  /* ---- MasterObserver implementation ---- */


  public void start(CoprocessorEnvironment env) throws IOException {
    CompoundConfiguration conf = new CompoundConfiguration();
    conf.add(env.getConfiguration());


    shouldCheckExecPermission = conf.getBoolean(AccessControlConstants.EXEC_PERMISSION_CHECKS_KEY,
      AccessControlConstants.DEFAULT_EXEC_PERMISSION_CHECKS);


    cellFeaturesEnabled = HFile.getFormatVersion(conf) >= HFile.MIN_FORMAT_VERSION_WITH_TAGS;
    if (!cellFeaturesEnabled) {
      LOG.info("A minimum HFile version of " + HFile.MIN_FORMAT_VERSION_WITH_TAGS
          + " is required to persist cell ACLs. Consider setting " + HFile.FORMAT_VERSION_KEY
          + " accordingly.");
    }


    ZooKeeperWatcher zk = null;
    if (env instanceof MasterCoprocessorEnvironment) {
      // if running on HMaster
      MasterCoprocessorEnvironment mEnv = (MasterCoprocessorEnvironment) env;
      zk = mEnv.getMasterServices().getZooKeeper();
    } else if (env instanceof RegionServerCoprocessorEnvironment) {
      RegionServerCoprocessorEnvironment rsEnv = (RegionServerCoprocessorEnvironment) env;
      zk = rsEnv.getRegionServerServices().getZooKeeper();
    } else if (env instanceof RegionCoprocessorEnvironment) {
      // if running at region
      regionEnv = (RegionCoprocessorEnvironment) env;
      conf.addStringMap(regionEnv.getRegion().getTableDesc().getConfiguration());
      zk = regionEnv.getRegionServerServices().getZooKeeper();
      compatibleEarlyTermination = conf.getBoolean(AccessControlConstants.CF_ATTRIBUTE_EARLY_OUT,
        AccessControlConstants.DEFAULT_ATTRIBUTE_EARLY_OUT);
    }


    // set the user-provider.
    this.userProvider = UserProvider.instantiate(env.getConfiguration());


    // set up the list of users with superuser privilege
    User user = userProvider.getCurrent();
    superusers = Lists.asList(user.getShortName(),
      conf.getStrings(AccessControlLists.SUPERUSER_CONF_KEY, new String[0]));


    // If zk is null or IOException while obtaining auth manager,
    // throw RuntimeException so that the coprocessor is unloaded.
    if (zk != null) {
      try {

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    this.region = region;
    this.family = family;
    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    // CompoundConfiguration will look for keys in reverse order of addition, so we'd
    // add global config first, then table and cf overrides, then cf metadata.
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(region.getTableDesc().getConfiguration())
      .addStringMap(family.getConfiguration())
      .addWritableMap(family.getValues());
    this.blocksize = family.getBlocksize();

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    this.log = log;
    this.fs = fs;


    // 'conf' renamed to 'confParam' b/c we use this.conf in the constructor
    this.baseConf = confParam;
    this.conf = new CompoundConfiguration()
      .add(confParam)
      .addStringMap(htd.getConfiguration())
      .addWritableMap(htd.getValues());
    this.flushCheckInterval = conf.getInt(MEMSTORE_PERIODIC_FLUSH_INTERVAL,
        DEFAULT_CACHE_FLUSH_INTERVAL);

View Full Code Here

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