| public static IsNotBlank ( string val ) : bool | ||
| val | string | /// the String to check, may be null /// |
| Résultat | bool | |
/// <summary>
/// Throws <see cref="ArgumentException" /> if the parameter <paramref name="o"/>
/// is <code>null</code> or blank.
/// </summary>
/// <param name="o">value to test for blank.</param>
/// <param name="param">name of the parameter to check.</param>
/// <exception cref="ArgumentException">if <paramref name="o"/> is <code>null</code> or blank and constructs a
/// message with the name of the parameter.</exception>
public static void BlankCheck(String o, String param)
{
Debug.Assert(StringUtil.IsNotBlank(param));
if (StringUtil.IsBlank(o))
{
throw new ArgumentException(String.Format(BLANK_FORMAT, param));
}
}
/// <summary>
/// Throws <see cref="ArgumentNullException" /> if the parameter <paramref name="o"/>
/// is <code>null</code>.
/// </summary>
/// <param name="o">check if the object is <code>null</code>.</param>
/// <param name="param">name of the parameter to check for <code>null</code>.</param>
/// <exception cref="ArgumentNullException">if <paramref name="o"/> is <code>null</code> and constructs a
/// message with the name of the parameter.</exception>
public static void NullCheck(Object o, String param)
{
Debug.Assert(StringUtil.IsNotBlank(param));
if (o == null)
{
throw new ArgumentNullException(String.Format(NULL_FORMAT, param));
}
}
/// <summary>
/// Throws <see cref="ArgumentNullException" /> if the parameter <paramref name="o"/>
/// is <code>null</code>, otherwise returns its value.
/// </summary>
/// <typeparam name="T">the type of the parameter to check for <code>null</code>. Must be a reference type.</typeparam>
/// <param name="o">check if the object is <code>null</code>.</param>
/// <param name="param">name of the parameter to check for <code>null</code>.</param>
/// <returns>the value of the parameter <paramref name="o"/>.</returns>
/// <exception cref="ArgumentNullException">if <paramref name="o"/> is <code>null</code> and constructs a
/// message with the name of the parameter.</exception>
public static T NullChecked <T>(T o, String param) where T : class
{
// Avoid calling NullCheck() here to reuse code: it deepens the stack trace.
// We want the exception to be thrown as close to the call site as possible.
Debug.Assert(StringUtil.IsNotBlank(param));
if (o == null)
{
throw new ArgumentNullException(String.Format(NULL_FORMAT, param));
}
return(o);
}
/// <summary>
/// Throws <see cref="ArgumentException" /> if the parameter <paramref name="o"/>
/// is <code>null</code> or blank, otherwise returns its value.
/// </summary>
/// <param name="o">value to test for blank.</param>
/// <param name="param">name of the parameter to check.</param>
/// <returns>the value of the parameter <paramref name="o"/>.</returns>
/// <exception cref="ArgumentException">if <paramref name="o"/> is <code>null</code> or blank and constructs a
/// message with the name of the parameter.</exception>
public static String BlankChecked(String o, String param)
{
// Avoid calling BlankCheck() here to reuse code: it deepens the stack trace.
// We want the exception to be thrown as close to the call site as possible.
Debug.Assert(StringUtil.IsNotBlank(param));
if (StringUtil.IsBlank(o))
{
throw new ArgumentException(String.Format(BLANK_FORMAT, param));
}
return(o);
}
/// <summary>
/// Read the entire stream into a String and return it.
/// </summary>
/// <param name="clazz"> </param>
/// <param name="res"></param>
/// <returns></returns>
public static string GetResourceAsString(Type clazz, string res, Encoding charset)
{
Debug.Assert(clazz != null && StringUtil.IsNotBlank(res));
string ret = null;
Stream ins = GetResourceAsStream(clazz, res);
if (ins != null)
{
using (StreamReader reader = new StreamReader(ins, charset))
{
ret = reader.ReadToEnd();
}
QuietClose(ins);
}
return(ret);
}
/// <summary>
/// Get the resource as a byte array.
/// </summary>
/// <param name="clazz"> </param>
/// <param name="res">
/// @return </param>
public static byte[] GetResourceAsBytes(Type clazz, string res)
{
Debug.Assert(clazz != null && StringUtil.IsNotBlank(res));
// copy bytes from the stream to an array..
Stream ins = GetResourceAsStream(clazz, res);
if (ins == null)
{
throw new InvalidOperationException("Resource not found: " + res);
}
byte[] buffer = new byte[16 * 1024];
using (MemoryStream ms = new MemoryStream())
{
int read;
while ((read = ins.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
QuietClose(ins);
return(ms.ToArray());
}
}
/// <summary>
/// Read the entire stream into a String and return it.
/// </summary>
/// <param name="clazz"> </param>
/// <param name="res"></param>
/// <returns></returns>
public static string GetResourceAsString(Type clazz, string res)
{
Debug.Assert(clazz != null && StringUtil.IsNotBlank(res));
return(GetResourceAsString(clazz, res, Encoding.UTF8));
}
/// <summary>
/// Returns an input stream of the resource specified.
/// </summary>
/// <param name="clazz"> </param>
/// <param name="resourceName"> </param>
/// <returns> Returns an InputStream to the resource. </returns>
public static Stream GetResourceAsStream(Type clazz, string resourceName)
{
Debug.Assert(clazz != null && StringUtil.IsNotBlank(resourceName));
return(clazz.Assembly.GetManifestResourceStream(resourceName));
}