EDOBE XDOM TAKE 6 IR - PRODUCTSHEET Especificaciones descargar pdf (Pagina 259)

CHAPTER 10: Scripting Access to XMP Metadata Accessing the XMP scripting API 259

// retrieve property

prop = xmp.getProperty(XMPConst.NS_XMP, "CreatorTool");

$.writeln("namespace: " + prop.namespace + \n + "property path + name: " +

prop.path + \n + "value: " + prop); // same as prop.value

Modifying existing metadata

This code accesses an existing XMP packet, assuming the location has been assigned to a string variable. It

sets the modification-date property to the current date and time, and stores the updated XMP packet back

to the string, making it as small as possible.

xmp = new XMPMeta(xmpStr); // object initialized with xmp packet as string

dateTime = new XMPDateTime(new Date()); // now

$.writeln("old modification date: " +

xmp.getProperty(XMPConst.NS_XMP, "ModifyDate", "xmpdate"));

xmp.setProperty(XMPConst.NS_XMP, "ModifyDate", dateTime, "xmpdate");

// serialize to XML, in compact style

xmpStr = xmp.serialize(XMPConst.SERIALIZE_USE_COMPACT_FORMAT);

Using XMPFile for batch processing

This example iterates through a folder of image files and processes the metadata. The script processes

each picture as follows:

X Reads and parses the metadata. If an image file does not contain XMP metadata, the legacy metadata

is automatically converted to XMP.

X Deletes the list of existing creators, and adds a new creator value.

X Writes the modified metadata back to the file.

$.writeln("XMPFiles batch processing example");

// define folder containing images (make sure that you use copies)

var picFolder = "/c/temp/photos";

// load the XMPScript library

if (ExternalObject.AdobeXMPScript == undefined)

ExternalObject.AdobeXMPScript =

new ExternalObject(’lib:AdobeXMPScript’);

// iterate through the photos in the folder

var pics = Folder(picFolder).getFiles();

for (f in pics) {

var file = pics[f];

$.writeln("process file: " + file.fsName);

// applies only to files, not to folders

if (file instanceof File) {

var xmpFile = new XMPFile(file.fsName, XMPConst.UNKNOWN,

XMPConst.OPEN_FOR_UPDATE);

var xmp = xmpFile.getXMP();

// delete existing authors and add a new one

// existing metadata stays untouched

xmp.deleteProperty(XMPConst.NS_DC, "creator");

xmp.appendArrayItem(XMPConst.NS_DC, "creator", "Judy", 0,

XMPConst.ARRAY_IS_ORDERED);

// write updated metadata into the file

if (xmpFile.canPutXMP(xmp)) {

xmpFile.putXMP(xmp);

}

xmpFile.closeFile(XMPConst.CLOSE_UPDATE_SAFELY);

}

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