How to use

readConfiguration

method

in

org.apache.hadoop.hbase.constraint.Constraints

/**
 * Read in the configuration from the String encoded configuration
 * 
 * @param bytes
 *          to read from
 * @return A valid configuration
 * @throws IOException
 *           if the configuration could not be read
 */
private static Configuration readConfiguration(String bytes)
  throws IOException {
 return readConfiguration(Bytes.toBytes(bytes));
}

/**
 * Check to see if the given constraint is enabled.
 * 
 * @param desc
 *          {@link HTableDescriptor} to check.
 * @param clazz
 *          {@link Constraint} to check for
 * @return <tt>true</tt> if the {@link Constraint} is present and enabled.
 *         <tt>false</tt> otherwise.
 * @throws IOException
 *           If the constraint has improperly stored in the table
 */
public static boolean enabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz) throws IOException {
 // get the kv
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 // its not enabled so just return false. In fact, its not even present!
 if (entry == null) {
  return false;
 }
 // get the info about the constraint
 Configuration conf = readConfiguration(entry.getSecond());
 return conf.getBoolean(ENABLED_KEY, false);
}

/**
 * Change the whether the constraint (if it is already present) is enabled or
 * disabled.
 */
private static void changeConstraintEnabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz, boolean enabled) throws IOException {
 // get the original constraint
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 if (entry == null) {
  throw new IllegalArgumentException("Constraint: " + clazz.getName()
    + " is not associated with this table. You can't enable it!");
 }
 // create a new configuration from that conf
 Configuration conf = readConfiguration(entry.getSecond());
 // set that it is enabled
 conf.setBoolean(ENABLED_KEY, enabled);
 // write it back out
 writeConstraint(desc, entry.getFirst(), conf);
}

 conf = readConfiguration(e.getValue().get());
} catch (IOException e1) {

Configuration internal = readConfiguration(e.getSecond());

/**
 * Read in the configuration from the String encoded configuration
 * 
 * @param bytes
 *          to read from
 * @return A valid configuration
 * @throws IOException
 *           if the configuration could not be read
 */
private static Configuration readConfiguration(String bytes)
  throws IOException {
 return readConfiguration(Bytes.toBytes(bytes));
}

/**
 * Read in the configuration from the String encoded configuration
 * 
 * @param bytes
 *          to read from
 * @return A valid configuration
 * @throws IOException
 *           if the configuration could not be read
 */
private static Configuration readConfiguration(String bytes)
  throws IOException {
 return readConfiguration(Bytes.toBytes(bytes));
}

/**
 * Check to see if the given constraint is enabled.
 * 
 * @param desc
 *          {@link HTableDescriptor} to check.
 * @param clazz
 *          {@link Constraint} to check for
 * @return <tt>true</tt> if the {@link Constraint} is present and enabled.
 *         <tt>false</tt> otherwise.
 * @throws IOException
 *           If the constraint has improperly stored in the table
 */
public static boolean enabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz) throws IOException {
 // get the kv
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 // its not enabled so just return false. In fact, its not even present!
 if (entry == null) {
  return false;
 }
 // get the info about the constraint
 Configuration conf = readConfiguration(entry.getSecond());
 return conf.getBoolean(ENABLED_KEY, false);
}

/**
 * Check to see if the given constraint is enabled.
 * 
 * @param desc
 *          {@link HTableDescriptor} to check.
 * @param clazz
 *          {@link Constraint} to check for
 * @return <tt>true</tt> if the {@link Constraint} is present and enabled.
 *         <tt>false</tt> otherwise.
 * @throws IOException
 *           If the constraint has improperly stored in the table
 */
public static boolean enabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz) throws IOException {
 // get the kv
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 // its not enabled so just return false. In fact, its not even present!
 if (entry == null) {
  return false;
 }
 // get the info about the constraint
 Configuration conf = readConfiguration(entry.getSecond());
 return conf.getBoolean(ENABLED_KEY, false);
}

/**
 * Change the whether the constraint (if it is already present) is enabled or
 * disabled.
 */
private static void changeConstraintEnabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz, boolean enabled) throws IOException {
 // get the original constraint
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 if (entry == null) {
  throw new IllegalArgumentException("Constraint: " + clazz.getName()
    + " is not associated with this table. You can't enable it!");
 }
 // create a new configuration from that conf
 Configuration conf = readConfiguration(entry.getSecond());
 // set that it is enabled
 conf.setBoolean(ENABLED_KEY, enabled);
 // write it back out
 writeConstraint(desc, entry.getFirst(), conf);
}

/**
 * Change the whether the constraint (if it is already present) is enabled or
 * disabled.
 */
private static void changeConstraintEnabled(HTableDescriptor desc,
  Class<? extends Constraint> clazz, boolean enabled) throws IOException {
 // get the original constraint
 Pair<String, String> entry = getKeyValueForClass(desc, clazz);
 if (entry == null) {
  throw new IllegalArgumentException("Constraint: " + clazz.getName()
    + " is not associated with this table. You can't enable it!");
 }
 // create a new configuration from that conf
 Configuration conf = readConfiguration(entry.getSecond());
 // set that it is enabled
 conf.setBoolean(ENABLED_KEY, enabled);
 // write it back out
 writeConstraint(desc, entry.getFirst(), conf);
}

 conf = readConfiguration(e.getValue().get());
} catch (IOException e1) {

 conf = readConfiguration(e.getValue().get());
} catch (IOException e1) {

Configuration internal = readConfiguration(e.getSecond());

Configuration internal = readConfiguration(e.getSecond());