/**
* Configure the package.
*
* @param pkg
*/
private static void ConfigurePackage(Package pkg)
{
// Content type manager
pkg.contentTypeManager = new ZipContentTypeManager(null, pkg);
// Add default content types for .xml and .rels
pkg.contentTypeManager
.AddContentType(
PackagingUriHelper
.CreatePartName(PackagingUriHelper.PACKAGE_RELATIONSHIPS_ROOT_URI),
ContentTypes.RELATIONSHIPS_PART);
pkg.contentTypeManager
.AddContentType(PackagingUriHelper
.CreatePartName("/default.xml"),
ContentTypes.PLAIN_OLD_XML);
// Init some Package properties
pkg.packageProperties = new PackagePropertiesPart(pkg,
PackagingUriHelper.CORE_PROPERTIES_PART_NAME);
pkg.packageProperties.SetCreatorProperty("Generated by OpenXml4Net");
pkg.packageProperties.SetCreatedProperty(new Nullable <DateTime>(
new DateTime()));
}
/**
* Builds a PackagePartName for the given ZipEntry,
* or null if it's the content types / invalid part
*/
private PackagePartName BuildPartName(ZipEntry entry)
{
try
{
// We get an error when we parse [Content_Types].xml
// because it's not a valid URI.
if (entry.Name.Equals(
ContentTypeManager.CONTENT_TYPES_PART_NAME))
{
return(null);
}
return(PackagingUriHelper.CreatePartName(ZipHelper
.GetOPCNameFromZipItemName(entry.Name)));
}
catch (Exception)
{
// We assume we can continue, even in degraded mode ...
//logger.log(POILogger.WARN,"Entry "
// + entry.getName()
// + " is not valid, so this part won't be add to the package.");
return(null);
}
}
/**
* Get the PackagePart that is the target of a relationship.
*
* @param rel A relationship from this part to another one
* @return The target part of the relationship
*/
public PackagePart GetRelatedPart(PackageRelationship rel)
{
// Ensure this is one of ours
if (!IsRelationshipExists(rel))
{
throw new ArgumentException("Relationship " + rel + " doesn't start with this part " + _partName);
}
// Get the target URI, excluding any relative fragments
Uri target = rel.TargetUri;
if (target.OriginalString.IndexOf('#') >= 0)
{
String t = target.ToString();
try
{
target = PackagingUriHelper.ParseUri(t.Substring(0, t.IndexOf('#')), UriKind.Absolute);
}
// ElectricSquare: The value e is declared but never used
// catch (InvalidFormatException e) { }
catch (InvalidFormatException) { }
// ElectricSquare
{
throw new InvalidFormatException("Invalid target URI: " + t);
}
}
// Turn that into a name, and fetch
PackagePartName relName = PackagingUriHelper.CreatePartName(target);
PackagePart part = _container.GetPart(relName);
if (part == null)
{
throw new ArgumentException("No part found for relationship " + rel);
}
return(part);
}
/**
* Parse the relationship part and add all relationship in this collection.
*
* @param relPart
* The package part to parse.
* @throws InvalidFormatException
* Throws if the relationship part is invalid.
*/
private void ParseRelationshipsPart(PackagePart relPart)
{
try
{
logger.Log(POILogger.DEBUG, "Parsing relationship: " + relPart.PartName);
XPathDocument xmlRelationshipsDoc = DocumentHelper.ReadDocument(relPart.GetInputStream());
// Check OPC compliance M4.1 rule
bool fCorePropertiesRelationship = false;
///xmlRelationshipsDoc.ChildNodes.GetEnumerator();
XPathNavigator xpathnav = xmlRelationshipsDoc.CreateNavigator();
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xpathnav.NameTable);
nsMgr.AddNamespace("x", PackageNamespaces.RELATIONSHIPS);
XPathNodeIterator iterator = xpathnav.Select("//x:" + PackageRelationship.RELATIONSHIP_TAG_NAME, nsMgr);
while (iterator.MoveNext())
{
// Relationship ID
String id = iterator.Current.GetAttribute(PackageRelationship.ID_ATTRIBUTE_NAME, xpathnav.NamespaceURI);
// Relationship type
String type = iterator.Current.GetAttribute(
PackageRelationship.TYPE_ATTRIBUTE_NAME, xpathnav.NamespaceURI);
/* Check OPC Compliance */
// Check Rule M4.1
if (type.Equals(PackageRelationshipTypes.CORE_PROPERTIES))
{
if (!fCorePropertiesRelationship)
{
fCorePropertiesRelationship = true;
}
else
{
throw new InvalidFormatException(
"OPC Compliance error [M4.1]: there is more than one core properties relationship in the package !");
}
}
/* End OPC Compliance */
// TargetMode (default value "Internal")
string targetModeAttr = iterator.Current.GetAttribute(PackageRelationship.TARGET_MODE_ATTRIBUTE_NAME, xpathnav.NamespaceURI);
TargetMode targetMode = TargetMode.Internal;
if (targetModeAttr != string.Empty)
{
targetMode = targetModeAttr.ToLower()
.Equals("internal") ? TargetMode.Internal
: TargetMode.External;
}
// Target converted in URI
Uri target = PackagingUriHelper.ToUri("http://invalid.uri"); // dummy url
String value = iterator.Current.GetAttribute(
PackageRelationship.TARGET_ATTRIBUTE_NAME, xpathnav.NamespaceURI);;
try
{
// when parsing of the given uri fails, we can either
// ignore this relationship, which leads to InvalidOperationException
// later on, or use a dummy value and thus enable processing of the
// package
target = PackagingUriHelper.ToUri(value);
}
catch (UriFormatException e)
{
logger.Log(POILogger.ERROR, "Cannot convert " + value
+ " in a valid relationship URI-> dummy-URI used", e);
}
AddRelationship(target, targetMode, type, id);
}
}
catch (Exception e)
{
logger.Log(POILogger.ERROR, e);
throw new InvalidFormatException(e.Message);
}
}
