/**
* XPath composition utilities using the <code>XmpPathFactory</code>.
* @throws XmpException Forwards exceptions
*/
private static void CoverPathCreation()
{
writeMajorLabel("XPath composition utilities");
var meta = XmpMetaFactory.Create();
meta.AppendArrayItem(TestData.NS1, "ArrayProp", new PropertyOptions {
IsArray = true
}, "Item 1", null);
string path = XmpPathFactory.ComposeArrayItemPath("ArrayProp", 2);
log.WriteLine("composeArrayItemPath ArrayProp[2] = " + path);
meta.SetProperty(TestData.NS1, path, "new ns1:ArrayProp[2] value");
path = "StructProperty";
path += XmpPathFactory.ComposeStructFieldPath(TestData.NS2, "Field3");
log.WriteLine("composeStructFieldPath StructProperty/ns2:Field3 = " + path);
meta.SetProperty(TestData.NS1, path, "new ns1:StructProp/ns2:Field3 value");
path = "QualProp";
path += XmpPathFactory.ComposeQualifierPath(TestData.NS2, "Qual");
log.WriteLine("composeStructFieldPath QualProp/?ns2:Qual = " + path);
meta.SetProperty(TestData.NS1, path, "new ns1:QualProp/?ns2:Qual value");
meta.SetLocalizedText(TestData.NS1, "AltTextProp", null, "en-US", "initival value");
path = "AltTextProp";
path += XmpPathFactory.ComposeQualifierPath(XmpConstants.NsXml, "lang");
log.WriteLine("composeQualifierPath ns1:AltTextProp/?xml:lang = " + path);
meta.SetProperty(TestData.NS1, path, "new ns1:AltTextProp/?xml:lang value");
printXmpMeta(meta, "Modified simple RDF");
}
/// <exception cref="XmpException"/>
public IXmpProperty GetArrayItem(string schemaNs, string arrayName, int itemIndex)
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
var itemPath = XmpPathFactory.ComposeArrayItemPath(arrayName, itemIndex);
return(GetProperty(schemaNs, itemPath));
}
/// <seealso cref= XMPMeta#doesArrayItemExist(String, String, int) </seealso>
public virtual bool DoesArrayItemExist(string schemaNs, string arrayName, int itemIndex)
{
try {
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
string path = XmpPathFactory.ComposeArrayItemPath(arrayName, itemIndex);
return(DoesPropertyExist(schemaNs, path));
}
catch (XmpException) {
return(false);
}
}
/// <seealso cref= XMPMeta#deleteArrayItem(String, String, int) </seealso>
public virtual void DeleteArrayItem(string schemaNs, string arrayName, int itemIndex)
{
try {
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
string itemPath = XmpPathFactory.ComposeArrayItemPath(arrayName, itemIndex);
DeleteProperty(schemaNs, itemPath);
}
catch (XmpException) {
// EMPTY, exceptions are ignored within delete
}
}
public void DeleteArrayItem(string schemaNs, string arrayName, int itemIndex)
{
try
{
ParameterAsserts.AssertSchemaNs(schemaNs);
ParameterAsserts.AssertArrayName(arrayName);
var itemPath = XmpPathFactory.ComposeArrayItemPath(arrayName, itemIndex);
DeleteProperty(schemaNs, itemPath);
}
catch (XmpException)
{
}
}