[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] IBM xml4j parser vs. Datachannel
At our firm we are considering using the XML4j parser. The XML4j parser has gotten some excellent reviews. That is why I cannot understand the test results that I've done myself. For example: IBM XML4j --------- Time to File size | Tags | visit all -------------------------------- 3kb 100 .55s 2,229kb 7000 8.51s 6,368 20000 115.29s and the Datachannel Datachannel ----------- Time to File size | Tags | visit all ------------------------------- 3kb 100 .13 2,229kb 7000 2.99s 6,368kb 20000 9.76s And I have many more data points all the way to a 10MB file. Has anyone else experienced such poor results with the IBM parser? Why is there such a difference? I've included my sample code for the XML4j parser. Thanks in advance! Mike --------------------------------- import java.io.*; import java.net.*; import com.ibm.xml.parsers.*; // For the IBM Parser stuff import org.w3c.dom.Attr; import org.w3c.dom.Document; import org.w3c.dom.NamedNodeMap; import org.w3c.dom.Node; // The W3C definition of a node import org.w3c.dom.NodeList; public class DOMibm4j { int ELEMENT_NODE = 1; public static String szText = ""; Document doc; public DOMibm4j (String file, String sch /**, RichEdit re */) { try com.ibm.xml.parsers.DOMParser parser = new com.ibm.xml.parsers.DOMParser (); parser.setValidating (false); parser.parse (file + ".x"); doc = parser.getDocument (); } catch (Exception e) { e.printStackTrace(); return; } // Let's loop through all the nodes and look at them... for (int i=0; i < doc.getChildNodes().getLength (); i++) { Visit (doc.getChildNodes ().item(i), 0); } } public void Visit (Node node, int spaces) { // Recursively visits every node under this top node // Make sure that it's not an attribute or CDATA or processing instruction, etc. if (node.getNodeType () == ELEMENT_NODE) { int length = node.getChildNodes().getLength (); for (int i=0; i < length; i++) { Visit (node.getChildNodes().item(i), spaces+5); } } } } xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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