From: Kim Nguyễn <kn@lri.fr>
Date: Fri, 4 Mar 2016 17:52:16 +0000 (+0100)
Subject: Add Saxon evaluator.
X-Git-Url: http://git.nguyen.vg/gitweb/?p=tatoo.git;a=commitdiff_plain;h=664f69cd4642ecd088df72d21228fbec81d0030d

Add Saxon evaluator.
---

diff --git a/tests/xpath/XPathEvalSaxon.java b/tests/xpath/XPathEvalSaxon.java
new file mode 100644
index 0000000..0f8fd2e
--- /dev/null
+++ b/tests/xpath/XPathEvalSaxon.java
@@ -0,0 +1,59 @@
+//import javax.xml.xpath.*;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathException;
+import net.sf.saxon.xpath.XPathFactoryImpl;
+import net.sf.saxon.om.NodeInfo;
+import org.xml.sax.*;
+import org.w3c.dom.*;
+import javax.xml.transform.*;
+import javax.xml.transform.dom.*;
+import javax.xml.transform.stream.*;
+import java.util.ArrayList;
+import net.sf.saxon.type.Type;
+
+
+public class XPathEvalSaxon {
+
+
+  public static void main(String args[]) {
+    try {
+
+
+      XPath xpath = (new XPathFactoryImpl()).newXPath();
+      String expression = args[1];
+      InputSource inputSource = new InputSource(args[0]);
+      long startTime = System.nanoTime();
+      @SuppressWarnings("unchecked")
+      ArrayList<NodeInfo> nodes = (ArrayList<NodeInfo>) xpath.evaluate(expression, inputSource, XPathConstants.NODESET);
+      long evalTime = (System.nanoTime() - startTime) / 1000000;
+      Transformer serializer = TransformerFactory.newInstance().newTransformer();
+      serializer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
+      StreamResult o = new StreamResult(System.out);
+      startTime = System.nanoTime();
+      System.out.println("<xml_result num=\"1\">");
+      for(int i = 0; i < nodes.size(); i++){
+        NodeInfo n = nodes.get(i);
+        switch (n.getNodeKind()) {
+        case net.sf.saxon.type.Type.ATTRIBUTE:
+          System.out.print (n.getLocalPart() + "=" + n.getStringValue());
+          break;
+        default:
+          serializer.transform(n, o);
+          break;
+        };
+        System.out.println();
+      };
+      System.out.println("</xml_result>");
+      long printTime = (System.nanoTime() - startTime) / 1000000;
+      System.err.println("evaluation time: " + evalTime + "ms");
+      System.err.println("serialization time: " + printTime + "ms");
+    } catch (XPathException e) {
+      System.out.println (e.getCause());
+    } catch (Exception e) {
+      System.out.println(e);
+    };
+
+
+  }
+}
diff --git a/tests/xpath/XPathExample.java b/tests/xpath/XPathExample.java
new file mode 100644
index 0000000..326cb03
--- /dev/null
+++ b/tests/xpath/XPathExample.java
@@ -0,0 +1,105 @@
+import org.xml.sax.*;
+import org.w3c.dom.*;
+import javax.xml.transform.*;
+import javax.xml.transform.dom.*;
+import javax.xml.transform.stream.*;
+import java.util.ArrayList;
+import net.sf.saxon.Configuration;
+import net.sf.saxon.lib.NamespaceConstant;
+import net.sf.saxon.om.DocumentInfo;
+import net.sf.saxon.om.NodeInfo;
+import net.sf.saxon.xpath.XPathFactoryImpl;
+import org.xml.sax.InputSource;
+
+import javax.xml.namespace.QName;
+import javax.xml.transform.sax.SAXSource;
+import javax.xml.xpath.*;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+import java.util.Iterator;
+import java.util.List;
+import net.sf.saxon.type.Type;
+
+
+public class XPathExample {
+
+
+    public static void main (String args[])   {
+
+        if (args.length != 2) {
+            System.err.println("Usage: java XPathEvalSaxon input-file '/xpath/expression'");
+            System.exit(1);
+        }
+
+	try {
+
+	  System.setProperty("javax.xml.xpath.XPathFactory:"+NamespaceConstant.OBJECT_MODEL_SAXON,
+			   "net.sf.saxon.xpath.XPathFactoryImpl");
+
+	  XPathFactory xpf = XPathFactory.newInstance(NamespaceConstant.OBJECT_MODEL_SAXON);
+
+	  XPath xpe = xpf.newXPath();
+
+	  System.err.println("Loaded XPath Provider " + xpe.getClass().getName());
+
+	  long startTime = System.nanoTime ();
+	  InputSource is = new InputSource(args[0]);
+	  SAXSource ss = new SAXSource(is);
+	  Configuration config = ((XPathFactoryImpl) xpf).getConfiguration();
+	  NodeInfo doc = config.buildDocumentTree(ss).getRootNode();
+	  long stopTime = System.nanoTime ();
+	  System.err.println ("Loading document : " + (stopTime - startTime) / 1000000 + "ms");
+
+	  startTime = System.nanoTime ();
+	  XPathExpression cexpr = xpe.compile(args[1]);
+	  stopTime = System.nanoTime ();
+	  System.err.println ("Compiling XPath expression : " + (stopTime - startTime) / 1000000 + "ms");
+
+	  startTime = System.nanoTime ();
+	  @SuppressWarnings("unchecked")
+	    ArrayList<NodeInfo> nodes = (ArrayList<NodeInfo>) cexpr.evaluate(doc, XPathConstants.NODESET);
+	  stopTime = System.nanoTime ();
+	  long firstRun = (stopTime - startTime);
+	  System.err.println ("Evaluating XPath expression (1st run): " + firstRun / 1000000 + "ms");
+
+	  startTime = System.nanoTime ();
+	  for (int i = 1; i < 10; i++) {
+
+	    cexpr.evaluate(doc, XPathConstants.NODESET);
+
+	  };
+
+	  stopTime = System.nanoTime ();
+	  System.err.println ("Evaluating XPath expression (average 10 runs): " + (stopTime - startTime + firstRun) / (10 * 1000000) + "ms");
+
+	  Transformer serializer = TransformerFactory.newInstance().newTransformer();
+	  serializer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
+	  StreamResult o = new StreamResult(System.out);
+	  startTime = System.nanoTime();
+	  System.out.println("<xml_result num=\"1\">");
+	  for(int i = 0; i < nodes.size(); i++){
+	    NodeInfo n = nodes.get(i);
+	    switch (n.getNodeKind()) {
+	    case Type.ATTRIBUTE:
+	      System.out.print (n.getLocalPart() + "=" + n.getStringValue());
+	      break;
+	    default:
+	      serializer.transform(n, o);
+	      break;
+	    };
+	    System.out.println();
+	  };
+	  System.out.println("</xml_result>");
+	  stopTime = System.nanoTime();
+	  System.err.println ("Serializing document : " + (stopTime - startTime) / 1000000 + "ms");
+
+	} catch (XPathException e) {
+	  System.out.println (e.getCause());
+	} catch (Exception e) {
+	  System.out.println(e);
+	};
+
+    }
+
+}