Ejemplo n.º 1
0
		/// <summary>Returns a property, but the result value can be requested.</summary>
		/// <remarks>
		/// Returns a property, but the result value can be requested. It can be one
		/// of
		/// <see cref="VALUE_STRING"/>
		/// ,
		/// <see cref="VALUE_BOOLEAN"/>
		/// ,
		/// <see cref="VALUE_INTEGER"/>
		/// ,
		/// <see cref="VALUE_LONG"/>
		/// ,
		/// <see cref="VALUE_DOUBLE"/>
		/// ,
		/// <see cref="VALUE_DATE"/>
		/// ,
		/// <see cref="VALUE_CALENDAR"/>
		/// ,
		/// <see cref="VALUE_BASE64"/>
		/// .
		/// </remarks>
		/// <seealso cref="iText.Kernel.XMP.XMPMeta.GetProperty(System.String, System.String)
		/// 	"/>
		/// <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 an <code>XMPProperty</code></returns>
		/// <exception cref="iText.Kernel.XMP.XMPException">Collects any exception that occurs.</exception>
		protected internal virtual XMPProperty GetProperty(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.GetOptions().IsCompositeProperty())
				{
					throw new XMPException("Property must be simple when a value type is requested", 
						XMPError.BADXPATH);
				}
				Object value = EvaluateNodeValue(valueType, propNode);
				return new _XMPProperty_703(value, propNode);
			}
			else
			{
				return null;
			}
		}
Ejemplo n.º 2
0
        /// <seealso cref="Com.Adobe.Xmp.XMPUtils.RemoveProperties(Com.Adobe.Xmp.XMPMeta, string, string, bool, bool)"/>
        /// <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="Com.Adobe.Xmp.XMPException">If metadata processing fails</exception>
        public static void RemoveProperties(XMPMeta xmp, string schemaNS, string propName, bool doAllProperties, bool includeAliases)
        {
            ParameterAsserts.AssertImplementation(xmp);
            XMPMetaImpl xmpImpl = (XMPMetaImpl)xmp;

            if (propName != null && propName.Length > 0)
            {
                // 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 (schemaNS == null || schemaNS.Length == 0)
                {
                    throw new XMPException("Property name requires schema namespace", XMPErrorConstants.Badparam);
                }
                XMPPath expPath  = XMPPathParser.ExpandXPath(schemaNS, propName);
                XMPNode propNode = XMPNodeUtils.FindNode(xmpImpl.GetRoot(), expPath, false, null);
                if (propNode != null)
                {
                    if (doAllProperties || !Utils.IsInternalProperty(expPath.GetSegment(XMPPath.StepSchema).GetName(), expPath.GetSegment(XMPPath.StepRootProp).GetName()))
                    {
                        XMPNode parent = propNode.GetParent();
                        parent.RemoveChild(propNode);
                        if (parent.GetOptions().IsSchemaNode() && !parent.HasChildren())
                        {
                            // remove empty schema node
                            parent.GetParent().RemoveChild(parent);
                        }
                    }
                }
            }
            else
            {
                if (schemaNS != null && schemaNS.Length > 0)
                {
                    // 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.GetRoot(), schemaNS, false);
                    if (schemaNode != null)
                    {
                        if (RemoveSchemaChildren(schemaNode, doAllProperties))
                        {
                            xmpImpl.GetRoot().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.
                        XMPAliasInfo[] aliases = XMPMetaFactory.GetSchemaRegistry().FindAliases(schemaNS);
                        for (int i = 0; i < aliases.Length; i++)
                        {
                            XMPAliasInfo info       = aliases[i];
                            XMPPath      path       = XMPPathParser.ExpandXPath(info.GetNamespace(), info.GetPropName());
                            XMPNode      actualProp = XMPNodeUtils.FindNode(xmpImpl.GetRoot(), path, false, null);
                            if (actualProp != null)
                            {
                                XMPNode parent = actualProp.GetParent();
                                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.
                    for (Iterator it = xmpImpl.GetRoot().IterateChildren(); it.HasNext();)
                    {
                        XMPNode schema = (XMPNode)it.Next();
                        if (RemoveSchemaChildren(schema, doAllProperties))
                        {
                            it.Remove();
                        }
                    }
                }
            }
        }
Ejemplo n.º 3
0
        /// <summary>Constructor with optionsl initial values.</summary>
        /// <remarks>
        /// Constructor with optionsl initial values. If <code>propName</code> is provided,
        /// <code>schemaNS</code> has also be provided.
        /// </remarks>
        /// <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
        /// <see cref="Com.Adobe.Xmp.Options.IteratorOptions"/>
        /// </param>
        /// <exception cref="Com.Adobe.Xmp.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
            this.options = options != null ? options : new IteratorOptions();
            // the start node of the iteration depending on the schema and property filter
            XMPNode startNode    = null;
            string  initialPath  = null;
            bool    baseSchema   = schemaNS != null && schemaNS.Length > 0;
            bool    baseProperty = propPath != null && propPath.Length > 0;

            if (!baseSchema && !baseProperty)
            {
                // complete tree will be iterated
                startNode = xmp.GetRoot();
            }
            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.GetRoot(), path, false, null);
                    baseNS      = schemaNS;
                    initialPath = basePath.ToString();
                }
                else
                {
                    if (baseSchema && !baseProperty)
                    {
                        // Only Schema provided
                        startNode = XMPNodeUtils.FindSchemaNode(xmp.GetRoot(), schemaNS, false);
                    }
                    else
                    {
                        // !baseSchema  &&  baseProperty
                        // No schema but property provided -> error
                        throw new XMPException("Schema namespace URI is required", XMPErrorConstants.Badschema);
                    }
                }
            }
            // create iterator
            if (startNode != null)
            {
                if (!this.options.IsJustChildren())
                {
                    nodeIterator = new XMPIteratorImpl.NodeIterator(this, startNode, initialPath, 1);
                }
                else
                {
                    nodeIterator = new XMPIteratorImpl.NodeIteratorChildren(this, startNode, initialPath);
                }
            }
            else
            {
                // create null iterator
                nodeIterator = Collections.EmptyList().ListIterator();
            }
        }
Ejemplo n.º 4
0
		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 ? iText.Kernel.XMP.Impl.Utils.NormalizeLangValue
				(genericLang) : null;
			specificLang = iText.Kernel.XMP.Impl.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);
			}
			else
			{
				if (!arrayNode.GetOptions().IsArrayAltText())
				{
					if (!arrayNode.HasChildren() && arrayNode.GetOptions().IsArrayAlternate())
					{
						arrayNode.GetOptions().SetArrayAltText(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.GetChildren())
			{
				if (!currItem.HasQualifier() || !XMPConst.XML_LANG.Equals(currItem.GetQualifier(1
					).GetName()))
				{
					throw new XMPException("Language qualifier must be first", XMPError.BADXPATH);
				}
				else
				{
					if (XMPConst.X_DEFAULT.Equals(currItem.GetQualifier(1).GetValue()))
					{
						xdItem = currItem;
						haveXDefault = true;
						break;
					}
				}
			}
			// Moves x-default to the beginning of the array
			if (xdItem != null && arrayNode.GetChildrenLength() > 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)result[0];
			XMPNode itemNode = (XMPNode)result[1];
			bool specificXDefault = XMPConst.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, XMPConst.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.GetValue().Equals
							(itemNode.GetValue()))
						{
							xdItem.SetValue(itemValue);
						}
						// ! Do this after the x-default check!
						itemNode.SetValue(itemValue);
					}
					else
					{
						// Update all items whose values match the old x-default value.
						System.Diagnostics.Debug.Assert(haveXDefault && xdItem == itemNode);
						for (IEnumerator it_1 = arrayNode.IterateChildren(); it_1.MoveNext(); )
						{
							XMPNode currItem = (XMPNode)it_1.Current;
							if (currItem == xdItem || !currItem.GetValue().Equals(xdItem != null ? xdItem.GetValue
								() : null))
							{
								continue;
							}
							currItem.SetValue(itemValue);
						}
						// And finally do the x-default item.
						if (xdItem != null)
						{
							xdItem.SetValue(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.GetValue().Equals
						(itemNode.GetValue()))
					{
						xdItem.SetValue(itemValue);
					}
					itemNode.SetValue(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.GetChildrenLength() == 1)
					{
						xdItem.SetValue(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.GetChildrenLength() == 1)
			{
				XMPNodeUtils.AppendLangItem(arrayNode, XMPConst.X_DEFAULT, itemValue);
			}
		}