/*
    *
    * 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.rest.model;
  
  import java.io.IOException;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.List;
  
  import javax.xml.bind.annotation.XmlElementRef;
  import javax.xml.bind.annotation.XmlRootElement;
  
  import org.apache.hadoop.hbase.classification.InterfaceAudience;
  import org.apache.hadoop.hbase.protobuf.ProtobufUtil;
  import org.apache.hadoop.hbase.rest.ProtobufMessageHandler;
  import org.apache.hadoop.hbase.rest.protobuf.generated.TableListMessage.TableList;
  
  /**
   * Simple representation of a list of table names.
   */
  @XmlRootElement(name="TableList")
  @InterfaceAudience.Private
  public class TableListModel implements Serializable, ProtobufMessageHandler {
  
    private static final long serialVersionUID = 1L;
  
    private List<TableModel> tables = new ArrayList<TableModel>();
  
    /**
     * Default constructor
     */
    public TableListModel() {}
  
    /**
     * Add the table name model to the list
     * @param table the table model
     */
    public void add(TableModel table) {
      tables.add(table);
    }
    
    /**
     * @param index the index
     * @return the table model
     */
    public TableModel get(int index) {
      return tables.get(index);
    }
  
    /**
     * @return the tables
     */
    @XmlElementRef(name="table")
    public List<TableModel> getTables() {
      return tables;
    }
  
    /**
     * @param tables the tables to set
     */
    public void setTables(List<TableModel> tables) {
      this.tables = tables;
    }
  
    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
      StringBuilder sb = new StringBuilder();
      for(TableModel aTable : tables) {
        sb.append(aTable.toString());
        sb.append('\n');
      }
      return sb.toString();
    }
  
    @Override
    public byte[] createProtobufOutput() {
      TableList.Builder builder = TableList.newBuilder();
      for (TableModel aTable : tables) {
        builder.addName(aTable.getName());
     }
     return builder.build().toByteArray();
   }
 
   @Override
   public ProtobufMessageHandler getObjectFromMessage(byte[] message)
       throws IOException {
     TableList.Builder builder = TableList.newBuilder();
     ProtobufUtil.mergeFrom(builder, message);
     for (String table: builder.getNameList()) {
       this.add(new TableModel(table));
     }
     return this;
   }
 }