下面列出了javax.naming.directory.ModificationItem#getModificationOp ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Convert a ModificationItem to an instance of a ServerModification object
*
* @param modificationImpl the modification instance to convert
* @param attributeType the associated attributeType
* @return a instance of a ServerModification object
*/
private static Modification toServerModification( ModificationItem modificationImpl, AttributeType attributeType )
throws LdapException
{
ModificationOperation operation;
switch ( modificationImpl.getModificationOp() )
{
case DirContext.REMOVE_ATTRIBUTE:
operation = ModificationOperation.REMOVE_ATTRIBUTE;
break;
case DirContext.REPLACE_ATTRIBUTE:
operation = ModificationOperation.REPLACE_ATTRIBUTE;
break;
case DirContext.ADD_ATTRIBUTE:
default:
operation = ModificationOperation.ADD_ATTRIBUTE;
break;
}
Modification modification = new DefaultModification(
operation,
ServerEntryUtils.toServerAttribute( modificationImpl.getAttribute(), attributeType ) );
return modification;
}
/**
* Convert a ModificationItem to an instance of a ServerModification object
*
* @param modificationImpl the modification instance to convert
* @param attributeType the associated attributeType
* @return a instance of a ServerModification object
*/
private static Modification toServerModification( ModificationItem modificationImpl, AttributeType attributeType )
throws LdapException
{
ModificationOperation operation;
switch ( modificationImpl.getModificationOp() )
{
case DirContext.REMOVE_ATTRIBUTE:
operation = ModificationOperation.REMOVE_ATTRIBUTE;
break;
case DirContext.REPLACE_ATTRIBUTE:
operation = ModificationOperation.REPLACE_ATTRIBUTE;
break;
case DirContext.ADD_ATTRIBUTE:
default:
operation = ModificationOperation.ADD_ATTRIBUTE;
break;
}
Modification modification = new DefaultModification(
operation,
ServerEntryUtils.toServerAttribute( modificationImpl.getAttribute(), attributeType ) );
return modification;
}
public static List<Modification> toServerModification( ModificationItem[] modifications,
SchemaManager schemaManager ) throws LdapException
{
if ( modifications != null )
{
List<Modification> modificationsList = new ArrayList<Modification>();
for ( ModificationItem modification : modifications )
{
String attributeId = modification.getAttribute().getID();
String id = stripOptions( attributeId );
Set<String> options = getOptions( attributeId );
// -------------------------------------------------------------------
// DIRSERVER-646 Fix: Replacing an unknown attribute with no values
// (deletion) causes an error
// -------------------------------------------------------------------
// TODO - after removing JNDI we need to make the server handle
// this in the codec
if ( !schemaManager.getAttributeTypeRegistry().contains( id )
&& modification.getAttribute().size() == 0
&& modification.getModificationOp() == DirContext.REPLACE_ATTRIBUTE )
{
continue;
}
// -------------------------------------------------------------------
// END DIRSERVER-646 Fix
// -------------------------------------------------------------------
// TODO : handle options
AttributeType attributeType = schemaManager.lookupAttributeTypeRegistry( id );
modificationsList.add( toServerModification( modification, attributeType ) );
}
return modificationsList;
}
else
{
return null;
}
}
public static List<Modification> toServerModification( ModificationItem[] modifications,
SchemaManager schemaManager ) throws LdapException
{
if ( modifications != null )
{
List<Modification> modificationsList = new ArrayList<Modification>();
for ( ModificationItem modification : modifications )
{
String attributeId = modification.getAttribute().getID();
String id = stripOptions( attributeId );
Set<String> options = getOptions( attributeId );
// -------------------------------------------------------------------
// DIRSERVER-646 Fix: Replacing an unknown attribute with no values
// (deletion) causes an error
// -------------------------------------------------------------------
// TODO - after removing JNDI we need to make the server handle
// this in the codec
if ( !schemaManager.getAttributeTypeRegistry().contains( id )
&& modification.getAttribute().size() == 0
&& modification.getModificationOp() == DirContext.REPLACE_ATTRIBUTE )
{
continue;
}
// -------------------------------------------------------------------
// END DIRSERVER-646 Fix
// -------------------------------------------------------------------
// TODO : handle options
AttributeType attributeType = schemaManager.lookupAttributeTypeRegistry( id );
modificationsList.add( toServerModification( modification, attributeType ) );
}
return modificationsList;
}
else
{
return null;
}
}
/**
* Dumps the modifications
*/
private String dumpModificationItems()
{
StringBuffer sb = new StringBuffer();
for (ModificationItem modif : modificationList) {
sb.append(" Operation: ");
switch (modif.getModificationOp()) {
case DirContext.ADD_ATTRIBUTE :
sb.append("ADD\n");
break;
case DirContext.REMOVE_ATTRIBUTE :
sb.append("REMOVE\n");
break;
case DirContext.REPLACE_ATTRIBUTE :
sb.append("REPLACE \n");
break;
}
Attribute attribute = modif.getAttribute();
sb.append(" Attribute: ").append(attribute.getID()).append('\n');
if (attribute.size() != 0) {
try {
for (NamingEnumeration values = attribute.getAll(); values.hasMoreElements();) {
Object value = values.nextElement();
if (value instanceof String) {
sb.append(" ").append((String) value).append('\n');
} else {
sb.append(" ").append(Utils.dumpBytes((byte[]) value)).append('\n');
}
}
}
catch (NamingException ne) {
return "";
}
}
}
return sb.toString();
}
/**
* Get a ModificationItem to use for rollback of the supplied modification.
*
* @param originalAttributes
* All Attributes of the target DN that are affected of any of
* the ModificationItems.
* @param modificationItem
* the ModificationItem to create a rollback item for.
* @return A ModificationItem to use for rollback of the supplied
* ModificationItem.
*/
protected ModificationItem getCompensatingModificationItem(
Attributes originalAttributes, ModificationItem modificationItem) {
Attribute modificationAttribute = modificationItem.getAttribute();
Attribute originalAttribute = originalAttributes
.get(modificationAttribute.getID());
if (modificationItem.getModificationOp() == DirContext.REMOVE_ATTRIBUTE) {
if (modificationAttribute.size() == 0) {
// If the modification attribute size it means that the
// Attribute should be removed entirely - we should store a
// ModificationItem to restore all present values for rollback.
return new ModificationItem(DirContext.ADD_ATTRIBUTE,
(Attribute) originalAttribute.clone());
} else {
// The rollback modification will be to re-add the removed
// attribute values.
return new ModificationItem(DirContext.ADD_ATTRIBUTE,
(Attribute) modificationAttribute.clone());
}
} else if (modificationItem.getModificationOp() == DirContext.REPLACE_ATTRIBUTE) {
if (originalAttribute != null) {
return new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
(Attribute) originalAttribute.clone());
} else {
// The attribute doesn't previously exist - the rollback
// operation will be to remove the attribute.
return new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
new BasicAttribute(modificationAttribute.getID()));
}
} else {
// An ADD_ATTRIBUTE operation
if (originalAttribute == null) {
// The attribute doesn't previously exist - the rollback
// operation will be to remove the attribute.
return new ModificationItem(DirContext.REMOVE_ATTRIBUTE,
new BasicAttribute(modificationAttribute.getID()));
} else {
// The attribute does exist before - we should store the
// previous value and it should be used for replacing in
// rollback.
return new ModificationItem(DirContext.REPLACE_ATTRIBUTE,
(Attribute) originalAttribute.clone());
}
}
}