/**
    *
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.hadoop.hbase.client;
  
  import org.apache.hadoop.hbase.classification.InterfaceAudience;
  import org.apache.hadoop.hbase.classification.InterfaceStability;
  import org.apache.hadoop.hbase.HColumnDescriptor;
  import org.apache.hadoop.hbase.HTableDescriptor;
  
  /**
   * Read-only table descriptor.
   */
  @InterfaceAudience.Public
  @InterfaceStability.Evolving
  public class UnmodifyableHTableDescriptor extends HTableDescriptor {
    /** Default constructor */
    public UnmodifyableHTableDescriptor() {
      super();
    }
  
    /*
     * Create an unmodifyable copy of an HTableDescriptor
     * @param desc
     */
    UnmodifyableHTableDescriptor(final HTableDescriptor desc) {
      super(desc.getTableName(), getUnmodifyableFamilies(desc), desc.getValues());
    }
  
  
    /*
     * @param desc
     * @return Families as unmodifiable array.
     */
    private static HColumnDescriptor[] getUnmodifyableFamilies(
        final HTableDescriptor desc) {
      HColumnDescriptor [] f = new HColumnDescriptor[desc.getFamilies().size()];
      int i = 0;
      for (HColumnDescriptor c: desc.getFamilies()) {
        f[i++] = c;
      }
      return f;
    }
  
    /**
     * Does NOT add a column family. This object is immutable
     * @param family HColumnDescriptor of familyto add.
     */
    @Override
    public HTableDescriptor addFamily(final HColumnDescriptor family) {
      throw new UnsupportedOperationException("HTableDescriptor is read-only");
    }
  
    @Override
    public HTableDescriptor modifyFamily(HColumnDescriptor family) {
      throw new UnsupportedOperationException("HTableDescriptor is read-only");
    }
  
    /**
     * @param column
     * @return Column descriptor for the passed family name or the family on
     * passed in column.
     */
    @Override
    public HColumnDescriptor removeFamily(final byte [] column) {
      throw new UnsupportedOperationException("HTableDescriptor is read-only");
    }
  
    /**
     * @see org.apache.hadoop.hbase.HTableDescriptor#setReadOnly(boolean)
     */
    @Override
    public HTableDescriptor setReadOnly(boolean readOnly) {
      throw new UnsupportedOperationException("HTableDescriptor is read-only");
    }
  
    /**
     * @see org.apache.hadoop.hbase.HTableDescriptor#setValue(byte[], byte[])
     */
    @Override
    public HTableDescriptor setValue(byte[] key, byte[] value) {
      throw new UnsupportedOperationException("HTableDescriptor is read-only");
    }
 
   /**
    * @see org.apache.hadoop.hbase.HTableDescriptor#setValue(java.lang.String, java.lang.String)
    */
   @Override
   public HTableDescriptor setValue(String key, String value) {
     throw new UnsupportedOperationException("HTableDescriptor is read-only");
   }
 
   /**
    * @see org.apache.hadoop.hbase.HTableDescriptor#setMaxFileSize(long)
    */
   @Override
   public HTableDescriptor setMaxFileSize(long maxFileSize) {
     throw new UnsupportedOperationException("HTableDescriptor is read-only");
   }
 
   /**
    * @see org.apache.hadoop.hbase.HTableDescriptor#setMemStoreFlushSize(long)
    */
   @Override
   public HTableDescriptor setMemStoreFlushSize(long memstoreFlushSize) {
     throw new UnsupportedOperationException("HTableDescriptor is read-only");
   }
 
 //  /**
 //   * @see org.apache.hadoop.hbase.HTableDescriptor#addIndex(org.apache.hadoop.hbase.client.tableindexed.IndexSpecification)
 //   */
 //  @Override
 //  public void addIndex(IndexSpecification index) {
 //    throw new UnsupportedOperationException("HTableDescriptor is read-only");
 //  }
 }