/**
* Utility method for implementations to set the map that backs
* this bag. Not intended for interactive use outside of
* subclasses.
*/
protected virtual void setMap(java.util.Map <Object, Object> map)
{
if (map == null || map.isEmpty() == false)
{
throw new java.lang.IllegalArgumentException("The map must be non-null and empty");
}
_map = map;
}
/**
* Transforms a map.
* <p>
* The transformer itself may throw an exception if necessary.
*
* @param map the map to transform
* @throws the transformed object
*/
protected virtual java.util.Map <Object, Object> transformMap(java.util.Map <Object, Object> map)
{
if (map.isEmpty())
{
return(map);
}
java.util.Map <Object, Object> result = new LinkedMap(map.size());
for (java.util.Iterator <java.util.MapNS.Entry <Object, Object> > it = map.entrySet().iterator(); it.hasNext();)
{
java.util.MapNS.Entry <Object, Object> entry = it.next();
result.put(transformKey(entry.getKey()), transformValue(entry.getValue()));
}
return(result);
}
/**
* Creates an {@code AttributedString} from the given text and the
* attributes. The whole text has the given attributes applied.
*
* @param value
* the text to take as base for this attributed string.
* @param attributes
* the attributes that the text is associated with.
* @throws IllegalArgumentException
* if the length of {@code value} is 0 but the size of {@code
* attributes} is greater than 0.
* @throws NullPointerException
* if {@code value} is {@code null}.
*/
public AttributedString(System.String value,
java.util.Map <AttributedCharacterIteratorNS.Attribute, System.Object> attributes)
{
if (value == null)
{
throw new java.lang.NullPointerException();
}
if (value.Length == 0 && !attributes.isEmpty())
{
// text.0B=Cannot add attributes to empty string
throw new java.lang.IllegalArgumentException("Cannot add attributes to empty string"); //$NON-NLS-1$
}
text = value;
attributeMap = new java.util.HashMap <AttributedCharacterIteratorNS.Attribute, java.util.List <IAC_Range> >();//(attributes.size() * 4 / 3) + 1);
java.util.Iterator <java.util.MapNS.Entry <AttributedCharacterIteratorNS.Attribute, System.Object> > it = attributes.entrySet().iterator();
while (it.hasNext())
{
java.util.MapNS.Entry <AttributedCharacterIteratorNS.Attribute, System.Object> entry = it.next();
java.util.ArrayList <IAC_Range> ranges = new java.util.ArrayList <IAC_Range>(1);
ranges.add(new IAC_Range(0, text.Length, entry.getValue()));
attributeMap.put((AttributedCharacterIteratorNS.Attribute)entry
.getKey(), ranges);
}
}
public virtual bool isEmpty()
{
return(map.isEmpty());
}
public bool isEmpty()
{
return(map.isEmpty());
}
public bool hasTokenFrequencyInfo()
{
return(tokenFrequency != null && !tokenFrequency.isEmpty());
}
/**
* Returns the array of providers which meet the user supplied set of
* filters. The filter must be supplied in one of two formats:
* <nl>
* <li> CRYPTO_SERVICE_NAME.ALGORITHM_OR_TYPE</li>
* <p/>
* for example: "MessageDigest.SHA" The value associated with the key must
* be an empty string. <li> CRYPTO_SERVICE_NAME.ALGORITHM_OR_TYPE</li>
* ATTR_NAME:ATTR_VALUE
* <p/>
* for example: "Signature.MD2withRSA KeySize:512" where "KeySize:512" is
* the value of the filter map entry.
* </nl>
*
* @param filter
* case-insensitive filter.
* @return the providers which meet the user supplied string filter {@code
* filter}. A {@code null} value signifies that none of the
* installed providers meets the filter specification.
* @throws InvalidParameterException
* if an unusable filter is supplied.
* @throws NullPointerException
* if {@code filter} is {@code null}.
*/
public static Provider[] getProviders(java.util.Map <String, String> filter)
{
lock (lockJ)
{
if (filter == null)
{
throw new java.lang.NullPointerException("The filter is null"); //$NON-NLS-1$
}
if (filter.isEmpty())
{
return(null);
}
java.util.List <Provider> result = Services.getProvidersList();
java.util.Set <java.util.MapNS.Entry <String, String> > keys = filter.entrySet();
java.util.MapNS.Entry <String, String> entry;
for (java.util.Iterator <java.util.MapNS.Entry <String, String> > it = keys.iterator(); it.hasNext();)
{
entry = it.next();
String key = entry.getKey();
String val = entry.getValue();
String attribute = null;
int i = key.indexOf(' ');
int j = key.indexOf('.');
if (j == -1)
{
throw new InvalidParameterException("The filter is not in the required format"); //$NON-NLS-1$
}
if (i == -1)
{ // <crypto_service>.<algorithm_or_type>
if (val.length() != 0)
{
throw new InvalidParameterException("The filter is not in the required format"); //$NON-NLS-1$
}
}
else
{ // <crypto_service>.<algorithm_or_type> <attribute_name>
if (val.length() == 0)
{
throw new InvalidParameterException("The filter is not in the required format"); //$NON-NLS-1$
}
attribute = key.substring(i + 1);
if (attribute.trim().length() == 0)
{
throw new InvalidParameterException("The filter is not in the required format"); //$NON-NLS-1$
}
key = key.substring(0, i);
}
String serv = key.substring(0, j);
String alg = key.substring(j + 1);
if (serv.length() == 0 || alg.length() == 0)
{
throw new InvalidParameterException("The filter is not in the required format"); //$NON-NLS-1$
}
Provider p;
for (int k = 0; k < result.size(); k++)
{
try
{
p = result.get(k);
}
catch (java.lang.IndexOutOfBoundsException)
{
break;
}
if (!p.implementsAlg(serv, alg, attribute, val))
{
result.remove(p);
k--;
}
}
}
if (result.size() > 0)
{
return(result.toArray(new Provider[result.size()]));
}
return(null);
}
}