/// <summary>Stores the item in the configuration with the given keyName.</summary>
/// <?/>
/// <param name="conf">the configuration to store</param>
/// <param name="item">the object to be stored</param>
/// <param name="keyName">the name of the key to use</param>
/// <exception cref="System.IO.IOException">
/// : forwards Exceptions from the underlying
/// <see cref="Org.Apache.Hadoop.IO.Serializer.Serialization{T}"/>
/// classes.
/// </exception>
public static void Store <K>(Configuration conf, K item, string keyName)
{
Org.Apache.Hadoop.IO.DefaultStringifier <K> stringifier = new Org.Apache.Hadoop.IO.DefaultStringifier
<K>(conf, GenericsUtil.GetClass(item));
conf.Set(keyName, stringifier.ToString(item));
stringifier.Close();
}
/// <summary>Restores the object from the configuration.</summary>
/// <?/>
/// <param name="conf">the configuration to use</param>
/// <param name="keyName">the name of the key to use</param>
/// <param name="itemClass">the class of the item</param>
/// <returns>restored object</returns>
/// <exception cref="System.IO.IOException">
/// : forwards Exceptions from the underlying
/// <see cref="Org.Apache.Hadoop.IO.Serializer.Serialization{T}"/>
/// classes.
/// </exception>
public static K Load <K>(Configuration conf, string keyName)
{
System.Type itemClass = typeof(K);
Org.Apache.Hadoop.IO.DefaultStringifier <K> stringifier = new Org.Apache.Hadoop.IO.DefaultStringifier
<K>(conf, itemClass);
try
{
string itemStr = conf.Get(keyName);
return(stringifier.FromString(itemStr));
}
finally
{
stringifier.Close();
}
}
/// <summary>Stores the array of items in the configuration with the given keyName.</summary>
/// <?/>
/// <param name="conf">the configuration to use</param>
/// <param name="items">the objects to be stored</param>
/// <param name="keyName">the name of the key to use</param>
/// <exception cref="System.IndexOutOfRangeException">if the items array is empty</exception>
/// <exception cref="System.IO.IOException">
/// : forwards Exceptions from the underlying
/// <see cref="Org.Apache.Hadoop.IO.Serializer.Serialization{T}"/>
/// classes.
/// </exception>
public static void StoreArray <K>(Configuration conf, K[] items, string keyName)
{
Org.Apache.Hadoop.IO.DefaultStringifier <K> stringifier = new Org.Apache.Hadoop.IO.DefaultStringifier
<K>(conf, GenericsUtil.GetClass(items[0]));
try
{
StringBuilder builder = new StringBuilder();
foreach (K item in items)
{
builder.Append(stringifier.ToString(item)).Append(Separator);
}
conf.Set(keyName, builder.ToString());
}
finally
{
stringifier.Close();
}
}
/// <summary>Restores the array of objects from the configuration.</summary>
/// <?/>
/// <param name="conf">the configuration to use</param>
/// <param name="keyName">the name of the key to use</param>
/// <param name="itemClass">the class of the item</param>
/// <returns>restored object</returns>
/// <exception cref="System.IO.IOException">
/// : forwards Exceptions from the underlying
/// <see cref="Org.Apache.Hadoop.IO.Serializer.Serialization{T}"/>
/// classes.
/// </exception>
public static K[] LoadArray <K>(Configuration conf, string keyName)
{
System.Type itemClass = typeof(K);
Org.Apache.Hadoop.IO.DefaultStringifier <K> stringifier = new Org.Apache.Hadoop.IO.DefaultStringifier
<K>(conf, itemClass);
try
{
string itemStr = conf.Get(keyName);
AList <K> list = new AList <K>();
string[] parts = itemStr.Split(Separator);
foreach (string part in parts)
{
if (!part.IsEmpty())
{
list.AddItem(stringifier.FromString(part));
}
}
return(GenericsUtil.ToArray(itemClass, list));
}
finally
{
stringifier.Close();
}
}
