/*
    * Copyright 2002-2016 the original author or authors
    *
    * Licensed 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 com.github.springtestdbunit;
  
  import java.sql.SQLException;
  
  import org.dbunit.database.IDatabaseConnection;
  import org.springframework.util.Assert;
  import org.springframework.util.StringUtils;
  
  /**
   * Holds a number of {@link IDatabaseConnection} beans.
   *
   * @author Phillip Webb
   */
  public class DatabaseConnections {
  
  	private final String[] names;
  
  	private final IDatabaseConnection[] connections;
  
  	public DatabaseConnections(String[] names, IDatabaseConnection[] connections) {
  		Assert.notEmpty(names, "Names must not be empty");
  		Assert.notEmpty(connections, "Connections must not be empty");
  		Assert.isTrue(names.length == connections.length, "Names and Connections must have the same length");
  		this.names = names;
  		this.connections = connections;
  	}
  
  	public void closeAll() throws SQLException {
  		for (IDatabaseConnection connection : this.connections) {
  			connection.close();
  		}
  	}
  
  	public IDatabaseConnection get(String name) {
  		if (!StringUtils.hasLength(name)) {
  			return this.connections[0];
  		}
  		for (int i = 0; i < this.names.length; i++) {
  			if (this.names[i].equals(name)) {
  				return this.connections[i];
  			}
  		}
  		throw new IllegalStateException("Unable to find connection named " + name);
  	}
  
  }