// -------------------------------------------------------------------------------------
// private
/// <summary>
/// Locate or create the item node and set the value. Note the index
/// parameter is one-based! The index can be in the range [1..size + 1] or
/// "last()", normalize it and check the insert flags. The order of the
/// normalization checks is important. If the array is empty we end up with
/// an index and location to set item size + 1.
/// </summary>
/// <param name="arrayNode"> an array node </param>
/// <param name="itemIndex"> the index where to insert the item </param>
/// <param name="itemValue"> the item value </param>
/// <param name="itemOptions"> the options for the new item </param>
/// <param name="insert"> insert oder overwrite at index position? </param>
/// <exception cref="XmpException"> </exception>
private void DoSetArrayItem(XmpNode arrayNode, int itemIndex, string itemValue, PropertyOptions itemOptions,
bool insert)
{
XmpNode itemNode = new XmpNode(ARRAY_ITEM_NAME, null);
itemOptions = XmpNodeUtils.VerifySetOptions(itemOptions, itemValue);
// in insert mode the index after the last is allowed,
// even ARRAY_LAST_ITEM points to the index *after* the last.
int maxIndex = insert ? arrayNode.ChildrenLength + 1 : arrayNode.ChildrenLength;
if (itemIndex == ARRAY_LAST_ITEM)
{
itemIndex = maxIndex;
}
if (1 <= itemIndex && itemIndex <= maxIndex)
{
if (!insert)
{
arrayNode.RemoveChild(itemIndex);
}
arrayNode.AddChild(itemIndex, itemNode);
SetNode(itemNode, itemValue, itemOptions, false);
}
else
{
throw new XmpException("Array index out of bounds", XmpError.BADINDEX);
}
}
/// <summary>
/// Tweak old XMP: Move an instance ID from rdf:about to the
/// <em>xmpMM:InstanceID</em> property. An old instance ID usually looks
/// like "uuid:bac965c4-9d87-11d9-9a30-000d936b79c4", plus InDesign
/// 3.0 wrote them like "bac965c4-9d87-11d9-9a30-000d936b79c4". If
/// the name looks like a UUID simply move it to <em>xmpMM:InstanceID</em>,
/// don't worry about any existing <em>xmpMM:InstanceID</em>. Both will
/// only be present when a newer file with the <em>xmpMM:InstanceID</em>
/// property is updated by an old app that uses <em>rdf:about</em>.
/// </summary>
/// <param name="tree"> the root of the metadata tree </param>
/// <exception cref="XmpException"> Thrown if tweaking fails. </exception>
private static void TweakOldXmp(XmpNode tree)
{
if (tree.Name != null && tree.Name.Length >= Utils.UUID_LENGTH)
{
string nameStr = tree.Name.ToLower();
if (nameStr.StartsWith("uuid:"))
{
nameStr = nameStr.Substring(5);
}
if (Utils.CheckUuidFormat(nameStr))
{
// move UUID to xmpMM:InstanceID and remove it from the root node
XmpPath path = XmpPathParser.ExpandXPath(XmpConst.NS_XMP_MM, "InstanceID");
XmpNode idNode = XmpNodeUtils.FindNode(tree, path, true, null);
if (idNode != null)
{
idNode.Options = null; // Clobber any existing xmpMM:InstanceID.
idNode.Value = "uuid:" + nameStr;
idNode.RemoveChildren();
idNode.RemoveQualifiers();
tree.Name = null;
}
else
{
throw new XmpException("Failure creating xmpMM:InstanceID", XmpError.INTERNALFAILURE);
}
}
}
}
/// <summary>
/// Fixes the GPS Timestamp in EXIF. </summary>
/// <param name="exifSchema"> the EXIF schema node </param>
/// <exception cref="XmpException"> Thrown if the date conversion fails. </exception>
private static void FixGpsTimeStamp(XmpNode exifSchema)
{
// Note: if dates are not found the convert-methods throws an exceptions,
// and this methods returns.
XmpNode gpsDateTime = XmpNodeUtils.FindChildNode(exifSchema, "exif:GPSTimeStamp", false);
if (gpsDateTime == null)
{
return;
}
try {
XMPDateTime binGpsStamp = XMPUtils.ConvertToDate(gpsDateTime.Value);
if (binGpsStamp.Year != 0 || binGpsStamp.Month != 0 || binGpsStamp.Day != 0)
{
return;
}
XmpNode otherDate = XmpNodeUtils.FindChildNode(exifSchema, "exif:DateTimeOriginal", false);
otherDate = otherDate ?? XmpNodeUtils.FindChildNode(exifSchema, "exif:DateTimeDigitized", false);
XMPDateTime binOtherDate = XMPUtils.ConvertToDate(otherDate.Value);
XmpCalendar cal = binGpsStamp.Calendar;
DateTime dt = new DateTime(binOtherDate.Year, binOtherDate.Month, binOtherDate.Day, cal.DateTime.Hour,
cal.DateTime.Minute, cal.DateTime.Second, cal.DateTime.Millisecond);
cal.DateTime = dt;
binGpsStamp = new XmpDateTimeImpl(cal);
gpsDateTime.Value = XMPUtils.ConvertFromDate(binGpsStamp);
}
catch (XmpException) {
}
}
/// <exception cref="XmpException"> </exception>
/// <seealso cref= XMPMeta#getLocalizedText(String, String, String, String) </seealso>
public virtual IXmpProperty GetLocalizedText(string schemaNs, string altTextName, string genericLang,
string specificLang)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(altTextName);
ParameterAsserts.AssertSpecificLang(specificLang);
genericLang = genericLang != null?Utils.NormalizeLangValue(genericLang) : null;
specificLang = Utils.NormalizeLangValue(specificLang);
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, altTextName);
XmpNode arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, false, null);
if (arrayNode == null)
{
return(null);
}
object[] result = XmpNodeUtils.ChooseLocalizedText(arrayNode, genericLang, specificLang);
int match = (int)((int?)result[0]);
XmpNode itemNode = (XmpNode)result[1];
if (match != XmpNodeUtils.CLT_NO_VALUES)
{
return(new XmpPropertyImpl1(itemNode));
}
return(null);
}
/// <summary>
/// The internals for SetProperty() and related calls, used after the node is
/// found or created.
/// </summary>
/// <param name="node">
/// the newly created node </param>
/// <param name="value">
/// the node value, can be <code>null</code> </param>
/// <param name="newOptions">
/// options for the new node, must not be <code>null</code>. </param>
/// <param name="deleteExisting"> flag if the existing value is to be overwritten </param>
/// <exception cref="XmpException"> thrown if options and value do not correspond </exception>
internal virtual void SetNode(XmpNode node, object value, PropertyOptions newOptions, bool deleteExisting)
{
if (deleteExisting)
{
node.Clear();
}
// its checked by setOptions(), if the merged result is a valid options set
node.Options.MergeWith(newOptions);
if (!node.Options.CompositeProperty)
{
// This is setting the value of a leaf node.
XmpNodeUtils.SetNodeValue(node, value);
}
else
{
if (value != null && value.ToString().Length > 0)
{
throw new XmpException("Composite nodes can't have values", XmpError.BADXPATH);
}
node.RemoveChildren();
}
}
/// <summary>
/// Constructor with optionsl initial values. If <code>propName</code> is provided,
/// <code>schemaNs</code> has also be provided. </summary>
/// <param name="xmp"> the iterated metadata object. </param>
/// <param name="schemaNs"> the iteration is reduced to this schema (optional) </param>
/// <param name="propPath"> the iteration is redurce to this property within the <code>schemaNs</code> </param>
/// <param name="options"> advanced iteration options, see <seealso cref="IteratorOptions"/> </param>
/// <exception cref="XmpException"> If the node defined by the paramters is not existing. </exception>
public XmpIteratorImpl(XmpMetaImpl xmp, string schemaNs, string propPath, IteratorOptions options)
{
// make sure that options is defined at least with defaults
_options = options ?? new IteratorOptions();
// the start node of the iteration depending on the schema and property filter
XmpNode startNode;
string initialPath = null;
bool baseSchema = !String.IsNullOrEmpty(schemaNs);
bool baseProperty = !String.IsNullOrEmpty(propPath);
if (!baseSchema && !baseProperty)
{
// complete tree will be iterated
startNode = xmp.Root;
}
else if (baseSchema && baseProperty)
{
// Schema and property node provided
XmpPath path = XmpPathParser.ExpandXPath(schemaNs, propPath);
// base path is the prop path without the property leaf
XmpPath basePath = new XmpPath();
for (int i = 0; i < path.Size() - 1; i++)
{
basePath.Add(path.GetSegment(i));
}
startNode = XmpNodeUtils.FindNode(xmp.Root, path, false, null);
_baseNs = schemaNs;
initialPath = basePath.ToString();
}
else if (baseSchema && !baseProperty)
{
// Only Schema provided
startNode = XmpNodeUtils.FindSchemaNode(xmp.Root, schemaNs, false);
}
else // !baseSchema && baseProperty
{
// No schema but property provided -> error
throw new XmpException("Schema namespace URI is required", XmpError.BADSCHEMA);
}
// create iterator
if (startNode != null)
{
_nodeIterator = (!_options.JustChildren)
? new NodeIterator(this, startNode, initialPath, 1)
: new NodeIteratorChildren(this, startNode, initialPath);
}
else
{
// create null iterator
_nodeIterator = EmptyList.GetEnumerator();
}
}
private void RegisterAlias(string aliasNs, string aliasProp, string actualNs, string actualProp,
AliasOptions aliasForm)
{
ParameterAsserts.AssertSchemaNs(aliasNs);
ParameterAsserts.AssertPropName(aliasProp);
ParameterAsserts.AssertSchemaNs(actualNs);
ParameterAsserts.AssertPropName(actualProp);
// Fix the alias options
AliasOptions aliasOpts = aliasForm != null
? new AliasOptions(
XmpNodeUtils.VerifySetOptions(aliasForm.ToPropertyOptions(), null).
Options)
: new AliasOptions();
if (_regex.IsMatch(aliasProp) || _regex.IsMatch(actualProp))
{
throw new XmpException("Alias and actual property names must be simple", XmpError.BADXPATH);
}
// check if both namespaces are registered
string aliasPrefix = GetNamespacePrefix(aliasNs);
string actualPrefix = GetNamespacePrefix(actualNs);
if (aliasPrefix == null)
{
throw new XmpException("Alias namespace is not registered", XmpError.BADSCHEMA);
}
if (actualPrefix == null)
{
throw new XmpException("Actual namespace is not registered", XmpError.BADSCHEMA);
}
string key = aliasPrefix + aliasProp;
// check if alias is already existing
if (_aliasMap.Contains(key))
{
throw new XmpException("Alias is already existing", XmpError.BADPARAM);
}
if (_aliasMap.Contains(actualPrefix + actualProp))
{
throw new XmpException("Actual property is already an alias, use the base property",
XmpError.BADPARAM);
}
IXmpAliasInfo aliasInfo = new XmpAliasInfoImpl(actualNs, actualPrefix, actualProp, aliasOpts);
_aliasMap[key] = aliasInfo;
}
/// <seealso cref= XMPMeta#doesPropertyExist(String, String) </seealso>
public virtual bool DoesPropertyExist(string schemaNs, string propName)
{
try {
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertPropName(propName);
XmpPath expPath = XmpPathParser.ExpandXPath(schemaNs, propName);
XmpNode propNode = XmpNodeUtils.FindNode(_tree, expPath, false, null);
return(propNode != null);
}
catch (XmpException) {
return(false);
}
}
/// <seealso cref= XMPUtils#appendProperties(XMPMeta, XMPMeta, boolean, boolean) </seealso>
/// <param name="source"> The source XMP object. </param>
/// <param name="destination"> The destination XMP object. </param>
/// <param name="doAllProperties"> Do internal properties in addition to external properties. </param>
/// <param name="replaceOldValues"> Replace the values of existing properties. </param>
/// <param name="deleteEmptyValues"> Delete destination values if source property is empty. </param>
/// <exception cref="XmpException"> Forwards the Exceptions from the metadata processing </exception>
public static void AppendProperties(IXmpMeta source, IXmpMeta destination, bool doAllProperties,
bool replaceOldValues, bool deleteEmptyValues)
{
ParameterAsserts.AssertImplementation(source);
ParameterAsserts.AssertImplementation(destination);
XmpMetaImpl src = (XmpMetaImpl)source;
XmpMetaImpl dest = (XmpMetaImpl)destination;
for (IEnumerator it = src.Root.IterateChildren(); it.MoveNext();)
{
XmpNode sourceSchema = (XmpNode)it.Current;
if (sourceSchema == null)
{
continue;
}
// Make sure we have a destination schema node
XmpNode destSchema = XmpNodeUtils.FindSchemaNode(dest.Root, sourceSchema.Name, false);
bool createdSchema = false;
if (destSchema == null)
{
PropertyOptions propertyOptions = new PropertyOptions();
propertyOptions.SchemaNode = true;
destSchema = new XmpNode(sourceSchema.Name, sourceSchema.Value,
propertyOptions);
dest.Root.AddChild(destSchema);
createdSchema = true;
}
// Process the source schema's children.
for (IEnumerator ic = sourceSchema.IterateChildren(); ic.MoveNext();)
{
XmpNode sourceProp = (XmpNode)ic.Current;
if (sourceProp == null)
{
continue;
}
if (doAllProperties || !Utils.IsInternalProperty(sourceSchema.Name, sourceProp.Name))
{
AppendSubtree(dest, sourceProp, destSchema, replaceOldValues, deleteEmptyValues);
}
}
if (!destSchema.HasChildren() && (createdSchema || deleteEmptyValues))
{
// Don't create an empty schema / remove empty schema.
dest.Root.RemoveChild(destSchema);
}
}
}
/// <summary>
/// Visit all schemas to do general fixes and handle special cases.
/// </summary>
/// <param name="xmp"> the metadata object implementation </param>
/// <exception cref="XmpException"> Thrown if the normalisation fails. </exception>
private static void TouchUpDataModel(XmpMetaImpl xmp)
{
// make sure the DC schema is existing, because it might be needed within the normalization
// if not touched it will be removed by removeEmptySchemas
XmpNodeUtils.FindSchemaNode(xmp.Root, XmpConst.NS_DC, true);
// Do the special case fixes within each schema.
IEnumerator it = xmp.Root.IterateChildren();
while (it.MoveNext())
{
XmpNode currSchema = (XmpNode)it.Current;
if (currSchema != null && XmpConst.NS_DC.Equals(currSchema.Name))
{
NormalizeDcArrays(currSchema);
}
else if (currSchema != null && XmpConst.NS_EXIF.Equals(currSchema.Name))
{
// Do a special case fix for exif:GPSTimeStamp.
FixGpsTimeStamp(currSchema);
XmpNode arrayNode = XmpNodeUtils.FindChildNode(currSchema, "exif:UserComment", false);
if (arrayNode != null)
{
RepairAltText(arrayNode);
}
}
else if (currSchema != null && XmpConst.NS_DM.Equals(currSchema.Name))
{
// Do a special case migration of xmpDM:copyright to
// dc:rights['x-default'].
XmpNode dmCopyright = XmpNodeUtils.FindChildNode(currSchema, "xmpDM:copyright", false);
if (dmCopyright != null)
{
MigrateAudioCopyright(xmp, dmCopyright);
}
}
else if (currSchema != null && XmpConst.NS_XMP_RIGHTS.Equals(currSchema.Name))
{
XmpNode arrayNode = XmpNodeUtils.FindChildNode(currSchema, "xmpRights:UsageTerms", false);
if (arrayNode != null)
{
RepairAltText(arrayNode);
}
}
}
}
/// <seealso cref= XMPMeta#deleteProperty(String, String) </seealso>
public virtual void DeleteProperty(string schemaNs, string propName)
{
try {
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertPropName(propName);
XmpPath expPath = XmpPathParser.ExpandXPath(schemaNs, propName);
XmpNode propNode = XmpNodeUtils.FindNode(_tree, expPath, false, null);
if (propNode != null)
{
XmpNodeUtils.DeleteNode(propNode);
}
}
catch (XmpException) {
// EMPTY, exceptions are ignored within delete
}
}
/// <exception cref="XmpException"> </exception>
/// <seealso cref= XMPMeta#insertArrayItem(String, String, int, String,
/// PropertyOptions) </seealso>
public virtual void InsertArrayItem(string schemaNs, string arrayName, int itemIndex, string itemValue,
PropertyOptions options)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
// Just lookup, don't try to create.
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, arrayName);
XmpNode arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, false, null);
if (arrayNode != null)
{
DoSetArrayItem(arrayNode, itemIndex, itemValue, options, true);
}
else
{
throw new XmpException("Specified array does not exist", XmpError.BADXPATH);
}
}
/// <exception cref="XmpException"> </exception>
/// <seealso cref= XMPMeta#countArrayItems(String, String) </seealso>
public virtual int CountArrayItems(string schemaNs, string arrayName)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, arrayName);
XmpNode arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, false, null);
if (arrayNode == null)
{
return(0);
}
if (arrayNode.Options.Array)
{
return(arrayNode.ChildrenLength);
}
throw new XmpException("The named property is not an array", XmpError.BADXPATH);
}
/// <summary>
/// Utility to find or create the array used by <code>separateArrayItems()</code>. </summary>
/// <param name="schemaNs"> a the namespace fo the array </param>
/// <param name="arrayName"> the name of the array </param>
/// <param name="arrayOptions"> the options for the array if newly created </param>
/// <param name="xmp"> the xmp object </param>
/// <returns> Returns the array node. </returns>
/// <exception cref="XmpException"> Forwards exceptions </exception>
private static XmpNode SeparateFindCreateArray(string schemaNs, string arrayName, PropertyOptions arrayOptions,
XmpMetaImpl xmp)
{
arrayOptions = XmpNodeUtils.VerifySetOptions(arrayOptions, null);
if (!arrayOptions.OnlyArrayOptions)
{
throw new XmpException("Options can only provide array form", XmpError.BADOPTIONS);
}
// Find the array node, make sure it is OK. Move the current children
// aside, to be readded later if kept.
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, arrayName);
XmpNode arrayNode = XmpNodeUtils.FindNode(xmp.Root, arrayPath, false, null);
if (arrayNode != null)
{
// The array exists, make sure the form is compatible. Zero
// arrayForm means take what exists.
PropertyOptions arrayForm = arrayNode.Options;
if (!arrayForm.Array || arrayForm.ArrayAlternate)
{
throw new XmpException("Named property must be non-alternate array", XmpError.BADXPATH);
}
if (arrayOptions.EqualArrayTypes(arrayForm))
{
throw new XmpException("Mismatch of specified and existing array form", XmpError.BADXPATH);
// *** Right error?
}
}
else
{
// The array does not exist, try to create it.
// don't modify the options handed into the method
arrayOptions.Array = true;
arrayNode = XmpNodeUtils.FindNode(xmp.Root, arrayPath, true, arrayOptions);
if (arrayNode == null)
{
throw new XmpException("Failed to create named array", XmpError.BADXPATH);
}
}
return(arrayNode);
}
/// <exception cref="XmpException"> </exception>
/// <seealso cref= XMPMeta#SetProperty(String, String, Object, PropertyOptions) </seealso>
public virtual void SetProperty(string schemaNs, string propName, object propValue, PropertyOptions options)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertPropName(propName);
options = XmpNodeUtils.VerifySetOptions(options, propValue);
XmpPath expPath = XmpPathParser.ExpandXPath(schemaNs, propName);
XmpNode propNode = XmpNodeUtils.FindNode(_tree, expPath, true, options);
if (propNode != null)
{
SetNode(propNode, propValue, options, false);
}
else
{
throw new XmpException("Specified property does not exist", XmpError.BADXPATH);
}
}
/// <summary>
/// Returns a property, but the result value can be requested.
/// </summary>
/// <seealso cref= XMPMeta#GetProperty(String, String) </seealso>
/// <param name="schemaNs">
/// a schema namespace </param>
/// <param name="propName">
/// a property name or path </param>
/// <param name="valueType">
/// the type of the value, see VALUE_... </param>
/// <returns> Returns the node value as an object according to the
/// <code>valueType</code>. </returns>
/// <exception cref="XmpException">
/// Collects any exception that occurs. </exception>
protected internal virtual object GetPropertyObject(string schemaNs, string propName, int valueType)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertPropName(propName);
XmpPath expPath = XmpPathParser.ExpandXPath(schemaNs, propName);
XmpNode propNode = XmpNodeUtils.FindNode(_tree, expPath, false, null);
if (propNode != null)
{
if (valueType != VALUE_STRING && propNode.Options.CompositeProperty)
{
throw new XmpException("Property must be simple when a value type is requested",
XmpError.BADXPATH);
}
return(evaluateNodeValue(valueType, propNode));
}
return(null);
}
/// <seealso cref= XMPMeta#appendArrayItem(String, String, PropertyOptions, String,
/// PropertyOptions) </seealso>
public virtual void AppendArrayItem(string schemaNs, string arrayName, PropertyOptions arrayOptions,
string itemValue, PropertyOptions itemOptions)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
if (arrayOptions == null)
{
arrayOptions = new PropertyOptions();
}
if (!arrayOptions.OnlyArrayOptions)
{
throw new XmpException("Only array form flags allowed for arrayOptions", XmpError.BADOPTIONS);
}
// Check if array options are set correctly.
arrayOptions = XmpNodeUtils.VerifySetOptions(arrayOptions, null);
// Locate or create the array. If it already exists, make sure the array
// form from the options
// parameter is compatible with the current state.
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, arrayName);
// Just lookup, don't try to create.
XmpNode arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, false, null);
if (arrayNode != null)
{
// The array exists, make sure the form is compatible. Zero
// arrayForm means take what exists.
if (!arrayNode.Options.Array)
{
throw new XmpException("The named property is not an array", XmpError.BADXPATH);
}
// if (arrayOptions != null && !arrayOptions.equalArrayTypes(arrayNode.getOptions()))
// {
// throw new XmpException("Mismatch of existing and specified array form", BADOPTIONS);
// }
}
else
{
// The array does not exist, try to create it.
if (arrayOptions.Array)
{
arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, true, arrayOptions);
if (arrayNode == null)
{
throw new XmpException("Failure creating array node", XmpError.BADXPATH);
}
}
else
{
// array options missing
throw new XmpException("Explicit arrayOptions required to create new array",
XmpError.BADOPTIONS);
}
}
DoSetArrayItem(arrayNode, ARRAY_LAST_ITEM, itemValue, itemOptions, true);
}
/// <seealso cref= XMPMeta#setLocalizedText(String, String, String, String, String,
/// PropertyOptions) </seealso>
public virtual void SetLocalizedText(string schemaNs, string altTextName, string genericLang,
string specificLang, string itemValue, PropertyOptions options)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(altTextName);
ParameterAsserts.AssertSpecificLang(specificLang);
genericLang = genericLang != null?Utils.NormalizeLangValue(genericLang) : null;
specificLang = Utils.NormalizeLangValue(specificLang);
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, altTextName);
// Find the array node and set the options if it was just created.
XmpNode arrayNode = XmpNodeUtils.FindNode(_tree, arrayPath, true,
new PropertyOptions(PropertyOptions.ARRAY |
PropertyOptions.ARRAY_ORDERED |
PropertyOptions.ARRAY_ALTERNATE |
PropertyOptions.ARRAY_ALT_TEXT));
if (arrayNode == null)
{
throw new XmpException("Failed to find or create array node", XmpError.BADXPATH);
}
if (!arrayNode.Options.ArrayAltText)
{
if (!arrayNode.HasChildren() && arrayNode.Options.ArrayAlternate)
{
arrayNode.Options.ArrayAltText = true;
}
else
{
throw new XmpException("Specified property is no alt-text array", XmpError.BADXPATH);
}
}
// Make sure the x-default item, if any, is first.
bool haveXDefault = false;
XmpNode xdItem = null;
foreach (XmpNode currItem in arrayNode.Children)
{
if (!currItem.HasQualifier() || !XML_LANG.Equals(currItem.GetQualifier(1).Name))
{
throw new XmpException("Language qualifier must be first", XmpError.BADXPATH);
}
if (X_DEFAULT.Equals(currItem.GetQualifier(1).Value))
{
xdItem = currItem;
haveXDefault = true;
break;
}
}
// Moves x-default to the beginning of the array
if (xdItem != null && arrayNode.ChildrenLength > 1)
{
arrayNode.RemoveChild(xdItem);
arrayNode.AddChild(1, xdItem);
}
// Find the appropriate item.
// chooseLocalizedText will make sure the array is a language
// alternative.
object[] result = XmpNodeUtils.ChooseLocalizedText(arrayNode, genericLang, specificLang);
int match = (int)((int?)result[0]);
XmpNode itemNode = (XmpNode)result[1];
bool specificXDefault = X_DEFAULT.Equals(specificLang);
switch (match)
{
case XmpNodeUtils.CLT_NO_VALUES:
// Create the array items for the specificLang and x-default, with
// x-default first.
XmpNodeUtils.AppendLangItem(arrayNode, X_DEFAULT, itemValue);
haveXDefault = true;
if (!specificXDefault)
{
XmpNodeUtils.AppendLangItem(arrayNode, specificLang, itemValue);
}
break;
case XmpNodeUtils.CLT_SPECIFIC_MATCH:
if (!specificXDefault)
{
// Update the specific item, update x-default if it matches the
// old value.
if (haveXDefault && xdItem != itemNode && xdItem != null && xdItem.Value.Equals(itemNode.Value))
{
xdItem.Value = itemValue;
}
// ! Do this after the x-default check!
itemNode.Value = itemValue;
}
else
{
// Update all items whose values match the old x-default value.
Debug.Assert(haveXDefault && xdItem == itemNode);
foreach (XmpNode currItem in arrayNode.Children)
{
if (currItem == xdItem || !currItem.Value.Equals(xdItem != null ? xdItem.Value : null))
{
continue;
}
currItem.Value = itemValue;
}
// And finally do the x-default item.
if (xdItem != null)
{
xdItem.Value = itemValue;
}
}
break;
case XmpNodeUtils.CLT_SINGLE_GENERIC:
// Update the generic item, update x-default if it matches the old
// value.
if (haveXDefault && xdItem != itemNode && xdItem != null && xdItem.Value.Equals(itemNode.Value))
{
xdItem.Value = itemValue;
}
itemNode.Value = itemValue; // ! Do this after
// the x-default
// check!
break;
case XmpNodeUtils.CLT_MULTIPLE_GENERIC:
// Create the specific language, ignore x-default.
XmpNodeUtils.AppendLangItem(arrayNode, specificLang, itemValue);
if (specificXDefault)
{
haveXDefault = true;
}
break;
case XmpNodeUtils.CLT_XDEFAULT:
// Create the specific language, update x-default if it was the only
// item.
if (xdItem != null && arrayNode.ChildrenLength == 1)
{
xdItem.Value = itemValue;
}
XmpNodeUtils.AppendLangItem(arrayNode, specificLang, itemValue);
break;
case XmpNodeUtils.CLT_FIRST_ITEM:
// Create the specific language, don't add an x-default item.
XmpNodeUtils.AppendLangItem(arrayNode, specificLang, itemValue);
if (specificXDefault)
{
haveXDefault = true;
}
break;
default:
// does not happen under normal circumstances
throw new XmpException("Unexpected result from ChooseLocalizedText",
XmpError.INTERNALFAILURE);
}
// Add an x-default at the front if needed.
if (!haveXDefault && arrayNode.ChildrenLength == 1)
{
XmpNodeUtils.AppendLangItem(arrayNode, X_DEFAULT, itemValue);
}
}
/// <summary>
/// The initial support for WAV files mapped a legacy ID3 audio copyright
/// into a new xmpDM:copyright property. This is special case code to migrate
/// that into dc:rights['x-default']. The rules:
///
/// <pre>
/// 1. If there is no dc:rights array, or an empty array -
/// Create one with dc:rights['x-default'] set from double linefeed and xmpDM:copyright.
///
/// 2. If there is a dc:rights array but it has no x-default item -
/// Create an x-default item as a copy of the first item then apply rule #3.
///
/// 3. If there is a dc:rights array with an x-default item,
/// Look for a double linefeed in the value.
/// A. If no double linefeed, compare the x-default value to the xmpDM:copyright value.
/// A1. If they match then leave the x-default value alone.
/// A2. Otherwise, append a double linefeed and
/// the xmpDM:copyright value to the x-default value.
/// B. If there is a double linefeed, compare the trailing text to the xmpDM:copyright value.
/// B1. If they match then leave the x-default value alone.
/// B2. Otherwise, replace the trailing x-default text with the xmpDM:copyright value.
///
/// 4. In all cases, delete the xmpDM:copyright property.
/// </pre>
/// </summary>
/// <param name="xmp"> the metadata object </param>
/// <param name="dmCopyright"> the "dm:copyright"-property </param>
private static void MigrateAudioCopyright(XMPMeta xmp, XmpNode dmCopyright)
{
try {
XmpNode dcSchema = XmpNodeUtils.FindSchemaNode(((XmpMetaImpl)xmp).Root, XmpConst.NS_DC, true);
string dmValue = dmCopyright.Value;
const string doubleLf = "\n\n";
XmpNode dcRightsArray = XmpNodeUtils.FindChildNode(dcSchema, "dc:rights", false);
if (dcRightsArray == null || !dcRightsArray.HasChildren())
{
// 1. No dc:rights array, create from double linefeed and xmpDM:copyright.
dmValue = doubleLf + dmValue;
xmp.SetLocalizedText(XmpConst.NS_DC, "rights", "", XmpConst.X_DEFAULT, dmValue, null);
}
else
{
int xdIndex = XmpNodeUtils.LookupLanguageItem(dcRightsArray, XmpConst.X_DEFAULT);
if (xdIndex < 0)
{
// 2. No x-default item, create from the first item.
string firstValue = dcRightsArray.GetChild(1).Value;
xmp.SetLocalizedText(XmpConst.NS_DC, "rights", "", XmpConst.X_DEFAULT, firstValue, null);
xdIndex = XmpNodeUtils.LookupLanguageItem(dcRightsArray, XmpConst.X_DEFAULT);
}
// 3. Look for a double linefeed in the x-default value.
XmpNode defaultNode = dcRightsArray.GetChild(xdIndex);
string defaultValue = defaultNode.Value;
int lfPos = defaultValue.IndexOf(doubleLf);
if (lfPos < 0)
{
// 3A. No double LF, compare whole values.
if (!dmValue.Equals(defaultValue))
{
// 3A2. Append the xmpDM:copyright to the x-default
// item.
defaultNode.Value = defaultValue + doubleLf + dmValue;
}
}
else
{
// 3B. Has double LF, compare the tail.
if (!defaultValue.Substring(lfPos + 2).Equals(dmValue))
{
// 3B2. Replace the x-default tail.
defaultNode.Value = defaultValue.Substring(0, lfPos + 2) + dmValue;
}
}
}
// 4. Get rid of the xmpDM:copyright.
dmCopyright.Parent.RemoveChild(dmCopyright);
}
catch (XmpException) {
// Don't let failures (like a bad dc:rights form) stop other
// cleanup.
}
}
/// <seealso cref= XMPUtils#catenateArrayItems(XMPMeta, String, String, String, String,
/// boolean)
/// </seealso>
/// <param name="xmp">
/// The XMP object containing the array to be catenated. </param>
/// <param name="schemaNs">
/// The schema namespace URI for the array. Must not be null or
/// the empty string. </param>
/// <param name="arrayName">
/// The name of the array. May be a general path expression, must
/// not be null or the empty string. Each item in the array must
/// be a simple string value. </param>
/// <param name="separator">
/// The string to be used to separate the items in the catenated
/// string. Defaults to "; ", ASCII semicolon and space
/// (U+003B, U+0020). </param>
/// <param name="quotes">
/// The characters to be used as quotes around array items that
/// contain a separator. Defaults to '"' </param>
/// <param name="allowCommas">
/// Option flag to control the catenation. </param>
/// <returns> Returns the string containing the catenated array items. </returns>
/// <exception cref="XmpException">
/// Forwards the Exceptions from the metadata processing </exception>
public static string CatenateArrayItems(IXmpMeta xmp, string schemaNs, string arrayName, string separator,
string quotes, bool allowCommas)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
ParameterAsserts.AssertImplementation(xmp);
if (string.IsNullOrEmpty(separator))
{
separator = "; ";
}
if (string.IsNullOrEmpty(quotes))
{
quotes = "\"";
}
XmpMetaImpl xmpImpl = (XmpMetaImpl)xmp;
// Return an empty result if the array does not exist,
// hurl if it isn't the right form.
XmpPath arrayPath = XmpPathParser.ExpandXPath(schemaNs, arrayName);
XmpNode arrayNode = XmpNodeUtils.FindNode(xmpImpl.Root, arrayPath, false, null);
if (arrayNode == null)
{
return("");
}
if (!arrayNode.Options.Array || arrayNode.Options.ArrayAlternate)
{
throw new XmpException("Named property must be non-alternate array", XmpError.BADPARAM);
}
// Make sure the separator is OK.
CheckSeparator(separator);
// Make sure the open and close quotes are a legitimate pair.
char openQuote = quotes[0];
char closeQuote = CheckQuotes(quotes, openQuote);
// Build the result, quoting the array items, adding separators.
// Hurl if any item isn't simple.
StringBuilder catinatedString = new StringBuilder();
for (IEnumerator it = arrayNode.IterateChildren(); it.MoveNext();)
{
XmpNode currItem = (XmpNode)it.Current;
if (currItem == null)
{
continue;
}
if (currItem.Options.CompositeProperty)
{
throw new XmpException("Array items must be simple", XmpError.BADPARAM);
}
string str = ApplyQuotes(currItem.Value, openQuote, closeQuote, allowCommas);
catinatedString.Append(str);
if (it.MoveNext())
{
catinatedString.Append(separator);
}
}
return(catinatedString.ToString());
}
/// <summary>
/// Compares two nodes including its children and qualifier. </summary>
/// <param name="leftNode"> an <code>XMPNode</code> </param>
/// <param name="rightNode"> an <code>XMPNode</code> </param>
/// <returns> Returns true if the nodes are equal, false otherwise. </returns>
/// <exception cref="XmpException"> Forwards exceptions to the calling method. </exception>
private static bool ItemValuesMatch(XmpNode leftNode, XmpNode rightNode)
{
PropertyOptions leftForm = leftNode.Options;
PropertyOptions rightForm = rightNode.Options;
if (leftForm.Equals(rightForm))
{
return(false);
}
if (leftForm.Options == 0)
{
// Simple nodes, check the values and xml:lang qualifiers.
if (!leftNode.Value.Equals(rightNode.Value))
{
return(false);
}
if (leftNode.Options.HasLanguage != rightNode.Options.HasLanguage)
{
return(false);
}
if (leftNode.Options.HasLanguage &&
!leftNode.GetQualifier(1).Value.Equals(rightNode.GetQualifier(1).Value))
{
return(false);
}
}
else if (leftForm.Struct)
{
// Struct nodes, see if all fields match, ignoring order.
if (leftNode.ChildrenLength != rightNode.ChildrenLength)
{
return(false);
}
for (IEnumerator it = leftNode.IterateChildren(); it.MoveNext();)
{
XmpNode leftField = (XmpNode)it.Current;
if (leftField == null)
{
continue;
}
XmpNode rightField = XmpNodeUtils.FindChildNode(rightNode, leftField.Name, false);
if (rightField == null || !ItemValuesMatch(leftField, rightField))
{
return(false);
}
}
}
else
{
// Array nodes, see if the "leftNode" values are present in the
// "rightNode", ignoring order, duplicates,
// and extra values in the rightNode-> The rightNode is the
// destination for AppendProperties.
Debug.Assert(leftForm.Array);
for (IEnumerator il = leftNode.IterateChildren(); il.MoveNext();)
{
XmpNode leftItem = (XmpNode)il.Current;
if (leftItem == null)
{
continue;
}
bool match = false;
for (IEnumerator ir = rightNode.IterateChildren(); ir.MoveNext();)
{
XmpNode rightItem = (XmpNode)ir.Current;
if (rightItem == null)
{
continue;
}
if (ItemValuesMatch(leftItem, rightItem))
{
match = true;
break;
}
}
if (!match)
{
return(false);
}
}
}
return(true); // All of the checks passed.
}
/// <seealso cref= XMPUtilsImpl#appendProperties(XMPMeta, XMPMeta, boolean, boolean, boolean) </seealso>
/// <param name="destXmp"> The destination XMP object. </param>
/// <param name="sourceNode"> the source node </param>
/// <param name="destParent"> the parent of the destination node </param>
/// <param name="replaceOldValues"> Replace the values of existing properties. </param>
/// <param name="deleteEmptyValues"> flag if properties with empty values should be deleted
/// in the destination object. </param>
/// <exception cref="XmpException"> </exception>
private static void AppendSubtree(XmpMetaImpl destXmp, XmpNode sourceNode, XmpNode destParent,
bool replaceOldValues, bool deleteEmptyValues)
{
XmpNode destNode = XmpNodeUtils.FindChildNode(destParent, sourceNode.Name, false);
bool valueIsEmpty = false;
if (deleteEmptyValues)
{
valueIsEmpty = sourceNode.Options.Simple
? string.IsNullOrEmpty(sourceNode.Value)
: !sourceNode.HasChildren();
}
if (deleteEmptyValues && valueIsEmpty)
{
if (destNode != null)
{
destParent.RemoveChild(destNode);
}
}
else if (destNode == null)
{
// The one easy case, the destination does not exist.
destParent.AddChild((XmpNode)sourceNode.Clone());
}
else if (replaceOldValues)
{
// The destination exists and should be replaced.
destXmp.SetNode(destNode, sourceNode.Value, sourceNode.Options, true);
destParent.RemoveChild(destNode);
destNode = (XmpNode)sourceNode.Clone();
destParent.AddChild(destNode);
}
else
{
// The destination exists and is not totally replaced. Structs and
// arrays are merged.
PropertyOptions sourceForm = sourceNode.Options;
PropertyOptions destForm = destNode.Options;
if (sourceForm != destForm)
{
return;
}
if (sourceForm.Struct)
{
// To merge a struct process the fields recursively. E.g. add simple missing fields.
// The recursive call to AppendSubtree will handle deletion for fields with empty
// values.
for (IEnumerator it = sourceNode.IterateChildren(); it.MoveNext();)
{
XmpNode sourceField = (XmpNode)it.Current;
if (sourceField == null)
{
continue;
}
AppendSubtree(destXmp, sourceField, destNode, replaceOldValues, deleteEmptyValues);
if (deleteEmptyValues && !destNode.HasChildren())
{
destParent.RemoveChild(destNode);
}
}
}
else if (sourceForm.ArrayAltText)
{
// Merge AltText arrays by the "xml:lang" qualifiers. Make sure x-default is first.
// Make a special check for deletion of empty values. Meaningful in AltText arrays
// because the "xml:lang" qualifier provides unambiguous source/dest correspondence.
for (IEnumerator it = sourceNode.IterateChildren(); it.MoveNext();)
{
XmpNode sourceItem = (XmpNode)it.Current;
if (sourceItem == null)
{
continue;
}
if (!sourceItem.HasQualifier() || !XML_LANG.Equals(sourceItem.GetQualifier(1).Name))
{
continue;
}
int destIndex = XmpNodeUtils.LookupLanguageItem(destNode, sourceItem.GetQualifier(1).Value);
if (deleteEmptyValues && (string.IsNullOrEmpty(sourceItem.Value)))
{
if (destIndex != -1)
{
destNode.RemoveChild(destIndex);
if (!destNode.HasChildren())
{
destParent.RemoveChild(destNode);
}
}
}
else if (destIndex == -1)
{
// Not replacing, keep the existing item.
if (!X_DEFAULT.Equals(sourceItem.GetQualifier(1).Value) || !destNode.HasChildren())
{
sourceItem.CloneSubtree(destNode);
}
else
{
XmpNode destItem = new XmpNode(sourceItem.Name, sourceItem.Value, sourceItem.Options);
sourceItem.CloneSubtree(destItem);
destNode.AddChild(1, destItem);
}
}
}
}
else if (sourceForm.Array)
{
// Merge other arrays by item values. Don't worry about order or duplicates. Source
// items with empty values do not cause deletion, that conflicts horribly with
// merging.
for (IEnumerator @is = sourceNode.IterateChildren(); @is.MoveNext();)
{
XmpNode sourceItem = (XmpNode)@is.Current;
if (sourceItem == null)
{
continue;
}
bool match = false;
for (IEnumerator id = destNode.IterateChildren(); id.MoveNext();)
{
XmpNode destItem = (XmpNode)id.Current;
if (destItem == null)
{
continue;
}
if (ItemValuesMatch(sourceItem, destItem))
{
match = true;
}
}
if (!match)
{
destNode = (XmpNode)sourceItem.Clone();
destParent.AddChild(destNode);
}
}
}
}
}
/// <summary>
/// Visit all of the top level nodes looking for aliases. If there is
/// no base, transplant the alias subtree. If there is a base and strict
/// aliasing is on, make sure the alias and base subtrees match.
/// </summary>
/// <param name="tree"> the root of the metadata tree </param>
/// <param name="options"> th parsing options </param>
/// <exception cref="XmpException"> Forwards XMP errors </exception>
private static void MoveExplicitAliases(XmpNode tree, ParseOptions options)
{
if (!tree.HasAliases)
{
return;
}
tree.HasAliases = false;
bool strictAliasing = options.StrictAliasing;
IEnumerator schemaIt = tree.UnmodifiableChildren.GetEnumerator();
while (schemaIt.MoveNext())
{
XmpNode currSchema = (XmpNode)schemaIt.Current;
if (currSchema == null)
{
continue;
}
if (!currSchema.HasAliases)
{
continue;
}
ArrayList currPropsToRemove = new ArrayList();
IEnumerator propertyIt = currSchema.IterateChildren();
while (propertyIt.MoveNext())
{
XmpNode currProp = (XmpNode)propertyIt.Current;
if (currProp == null)
{
continue;
}
if (!currProp.Alias)
{
continue;
}
currProp.Alias = false;
// Find the base path, look for the base schema and root node.
XMPAliasInfo info = XMPMetaFactory.SchemaRegistry.FindAlias(currProp.Name);
if (info != null)
{
// find or create schema
XmpNode baseSchema = XmpNodeUtils.FindSchemaNode(tree, info.Namespace, null, true);
baseSchema.Implicit = false;
XmpNode baseNode = XmpNodeUtils.FindChildNode(baseSchema, info.Prefix + info.PropName, false);
if (baseNode == null)
{
if (info.AliasForm.Simple)
{
// A top-to-top alias, transplant the property.
// change the alias property name to the base name
string qname = info.Prefix + info.PropName;
currProp.Name = qname;
baseSchema.AddChild(currProp);
}
else
{
// An alias to an array item,
// create the array and transplant the property.
baseNode = new XmpNode(info.Prefix + info.PropName, info.AliasForm.ToPropertyOptions());
baseSchema.AddChild(baseNode);
TransplantArrayItemAlias(currProp, baseNode);
}
currPropsToRemove.Add(currProp);
}
else if (info.AliasForm.Simple)
{
// The base node does exist and this is a top-to-top alias.
// Check for conflicts if strict aliasing is on.
// Remove and delete the alias subtree.
if (strictAliasing)
{
CompareAliasedSubtrees(currProp, baseNode, true);
}
currPropsToRemove.Add(currProp);
}
else
{
// This is an alias to an array item and the array exists.
// Look for the aliased item.
// Then transplant or check & delete as appropriate.
XmpNode itemNode = null;
if (info.AliasForm.ArrayAltText)
{
int xdIndex = XmpNodeUtils.LookupLanguageItem(baseNode, XmpConst.X_DEFAULT);
if (xdIndex != -1)
{
itemNode = baseNode.GetChild(xdIndex);
}
}
else if (baseNode.HasChildren())
{
itemNode = baseNode.GetChild(1);
}
if (itemNode == null)
{
TransplantArrayItemAlias(currProp, baseNode);
}
else
{
if (strictAliasing)
{
CompareAliasedSubtrees(currProp, itemNode, true);
}
}
currPropsToRemove.Add(currProp);
}
}
}
foreach (object o in currPropsToRemove)
{
currSchema.Children.Remove(o);
}
currPropsToRemove.Clear();
currSchema.HasAliases = false;
}
}
/// <seealso cref= XMPUtils#removeProperties(XMPMeta, String, String, boolean, boolean)
/// </seealso>
/// <param name="xmp">
/// The XMP object containing the properties to be removed.
/// </param>
/// <param name="schemaNs">
/// Optional schema namespace URI for the properties to be
/// removed.
/// </param>
/// <param name="propName">
/// Optional path expression for the property to be removed.
/// </param>
/// <param name="doAllProperties">
/// Option flag to control the deletion: do internal properties in
/// addition to external properties. </param>
/// <param name="includeAliases">
/// Option flag to control the deletion: Include aliases in the
/// "named schema" case above. </param>
/// <exception cref="XmpException"> If metadata processing fails </exception>
public static void RemoveProperties(IXmpMeta xmp, string schemaNs, string propName, bool doAllProperties,
bool includeAliases)
{
ParameterAsserts.AssertImplementation(xmp);
XmpMetaImpl xmpImpl = (XmpMetaImpl)xmp;
if (!string.IsNullOrEmpty(propName))
{
// Remove just the one indicated property. This might be an alias,
// the named schema might not actually exist. So don't lookup the
// schema node.
if (string.IsNullOrEmpty(schemaNs))
{
throw new XmpException("Property name requires schema namespace", XmpError.BADPARAM);
}
XmpPath expPath = XmpPathParser.ExpandXPath(schemaNs, propName);
XmpNode propNode = XmpNodeUtils.FindNode(xmpImpl.Root, expPath, false, null);
if (propNode != null)
{
if (doAllProperties ||
!Utils.IsInternalProperty(expPath.GetSegment((int)XmpPath.STEP_SCHEMA).Name,
expPath.GetSegment((int)XmpPath.STEP_ROOT_PROP).Name))
{
XmpNode parent = propNode.Parent;
parent.RemoveChild(propNode);
if (parent.Options.SchemaNode && !parent.HasChildren())
{
// remove empty schema node
parent.Parent.RemoveChild(parent);
}
}
}
}
else if (!string.IsNullOrEmpty(schemaNs))
{
// Remove all properties from the named schema. Optionally include
// aliases, in which case
// there might not be an actual schema node.
// XMP_NodePtrPos schemaPos;
XmpNode schemaNode = XmpNodeUtils.FindSchemaNode(xmpImpl.Root, schemaNs, false);
if (schemaNode != null)
{
if (RemoveSchemaChildren(schemaNode, doAllProperties))
{
xmpImpl.Root.RemoveChild(schemaNode);
}
}
if (includeAliases)
{
// We're removing the aliases also. Look them up by their
// namespace prefix.
// But that takes more code and the extra speed isn't worth it.
// Lookup the XMP node
// from the alias, to make sure the actual exists.
IXmpAliasInfo[] aliases = XmpMetaFactory.SchemaRegistry.FindAliases(schemaNs);
for (int i = 0; i < aliases.Length; i++)
{
IXmpAliasInfo info = aliases[i];
XmpPath path = XmpPathParser.ExpandXPath(info.Namespace, info.PropName);
XmpNode actualProp = XmpNodeUtils.FindNode(xmpImpl.Root, path, false, null);
if (actualProp != null)
{
XmpNode parent = actualProp.Parent;
parent.RemoveChild(actualProp);
}
}
}
}
else
{
// Remove all appropriate properties from all schema. In this case
// we don't have to be
// concerned with aliases, they are handled implicitly from the
// actual properties.
ArrayList schemasToRemove = new ArrayList();
for (IEnumerator it = xmpImpl.Root.IterateChildren(); it.MoveNext();)
{
XmpNode schema = (XmpNode)it.Current;
if (schema == null)
{
continue;
}
if (RemoveSchemaChildren(schema, doAllProperties))
{
schemasToRemove.Add(schema);
}
}
foreach (XmpNode xmpNode in schemasToRemove)
{
xmpImpl.Root.Children.Remove(xmpNode);
}
schemasToRemove.Clear();
}
}