[Practicalxml-commits] SF.net SVN: practicalxml:[66] trunk/src
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[Practicalxml-commits] SF.net SVN: practicalxml:[66] trunk/src
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From: Auto-Generated S. C. M. <pra...@li...> - 2008-12-29 02:52:08
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Revision: 66
http://practicalxml.svn.sourceforge.net/practicalxml/?rev=66&view=rev
Author: kdgregory
Date: 2008-12-29 02:52:04 +0000 (Mon, 29 Dec 2008)
Log Message:
-----------
XsiBoolean
Added Paths:
-----------
trunk/src/main/java/net/sf/practicalxml/xpath/function/XsiBoolean.java
trunk/src/test/java/net/sf/practicalxml/xpath/function/TestXsiBoolean.java
Added: trunk/src/main/java/net/sf/practicalxml/xpath/function/XsiBoolean.java
===================================================================
--- trunk/src/main/java/net/sf/practicalxml/xpath/function/XsiBoolean.java (rev 0)
+++ trunk/src/main/java/net/sf/practicalxml/xpath/function/XsiBoolean.java 2008-12-29 02:52:04 UTC (rev 66)
@@ -0,0 +1,69 @@
+package net.sf.practicalxml.xpath.function;
+
+import org.w3c.dom.Node;
+
+import net.sf.practicalxml.xpath.AbstractFunction;
+
+
+/**
+ * Converts its argument to a boolean value, using a modification of the rules
+ * for Schema instances: true is represented by the literal values "true" or
+ * 1, ignoring case, while false is everything else. This is very different
+ * from the XPath function <code>boolean()</code>, in which any non-zero value
+ * or non-empty string/nodeset is true.
+ * <p>
+ * Note: the name of this class is <code>XsiBoolean</code>, but it's name in
+ * an XPath expression is "<code>boolean</code>". This is to prevent name
+ * collision with <code>java.lang.Boolean</code>.
+ */
+public class XsiBoolean
+extends AbstractFunction<Boolean>
+{
+ public XsiBoolean()
+ {
+ super(Constants.COMMON_NS_URI, "boolean", 1);
+ }
+
+
+ @Override
+ protected Boolean processArg(int index, Node value, Boolean helper)
+ throws Exception
+ {
+ return (value != null)
+ ? processArg(index, value.getTextContent(), helper)
+ : Boolean.FALSE;
+ }
+
+
+ @Override
+ protected Boolean processArg(int index, String value, Boolean helper)
+ throws Exception
+ {
+ return "true".equals(value.toLowerCase())
+ || "1".equals(value);
+ }
+
+
+ @Override
+ protected Boolean processArg(int index, Boolean value, Boolean helper)
+ throws Exception
+ {
+ return value;
+ }
+
+
+ @Override
+ protected Boolean processArg(int index, Number value, Boolean helper)
+ throws Exception
+ {
+ return Boolean.valueOf(value.intValue() == 1);
+ }
+
+
+ @Override
+ protected Boolean processNullArg(int index, Boolean helper)
+ throws Exception
+ {
+ return Boolean.FALSE;
+ }
+}
\ No newline at end of file
Added: trunk/src/test/java/net/sf/practicalxml/xpath/function/TestXsiBoolean.java
===================================================================
--- trunk/src/test/java/net/sf/practicalxml/xpath/function/TestXsiBoolean.java (rev 0)
+++ trunk/src/test/java/net/sf/practicalxml/xpath/function/TestXsiBoolean.java 2008-12-29 02:52:04 UTC (rev 66)
@@ -0,0 +1,183 @@
+package net.sf.practicalxml.xpath.function;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+
+import javax.xml.xpath.XPathFunctionException;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+
+import net.sf.practicalxml.AbstractTestCase;
+import net.sf.practicalxml.DomUtil;
+import net.sf.practicalxml.xpath.XPathWrapper;
+
+
+public class TestXsiBoolean
+extends AbstractTestCase
+{
+ public TestXsiBoolean(String name)
+ {
+ super(name);
+ }
+
+
+//----------------------------------------------------------------------------
+// Setup
+//----------------------------------------------------------------------------
+
+ private Element _root;
+ private Element _child1;
+ private Element _child2;
+ private Element _child3;
+ private Element _child4;
+ private Element _child5;
+
+ @Override
+ protected void setUp() throws Exception
+ {
+ _root = DomUtil.newDocument("foo");
+ _child1 = DomUtil.appendChild(_root, "bar");
+ _child2 = DomUtil.appendChild(_root, "baz");
+ _child3 = DomUtil.appendChild(_root, "false");
+ _child4 = DomUtil.appendChild(_root, "true");
+ _child5 = DomUtil.appendChild(_root, "x");
+
+ DomUtil.setText(_child1, "true");
+ DomUtil.setText(_child2, "false");
+ DomUtil.setText(_child3, "1");
+ DomUtil.setText(_child4, "0");
+
+ _child1.setAttribute("attr", "False");
+ _child2.setAttribute("attr", "True");
+ _child3.setAttribute("attr", "0");
+ _child4.setAttribute("attr", "1");
+ }
+
+
+//----------------------------------------------------------------------------
+// Test Cases
+//----------------------------------------------------------------------------
+
+ public void testConstruction() throws Exception
+ {
+ XsiBoolean fn = new XsiBoolean();
+ assertEquals(Constants.COMMON_NS_URI, fn.getNamespaceUri());
+ assertEquals("boolean", fn.getName());
+ assertEquals(1, fn.getMinArgCount());
+ assertEquals(1, fn.getMaxArgCount());
+ }
+
+
+ public void testLiteralString() throws Exception
+ {
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList("true")));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList("false")));
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList("TrUe")));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList("FaLsE")));
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList("1")));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList("0")));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList("zippy")));
+ }
+
+
+ public void testLiteralNumber() throws Exception
+ {
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList(Double.valueOf(1))));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList(Double.valueOf(0))));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList(Double.valueOf(10))));
+ }
+
+
+ public void testNodeList() throws Exception
+ {
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList(_root.getChildNodes())));
+ }
+
+
+ public void testNode() throws Exception
+ {
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList(_child1)));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList(_child2)));
+ assertEquals(
+ Boolean.TRUE,
+ new XsiBoolean().evaluate(Arrays.asList(_child3)));
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList(_child4)));
+ }
+
+
+ public void testEmptyNodeList() throws Exception
+ {
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList(_child5.getChildNodes())));
+ }
+
+
+ public void testNull() throws Exception
+ {
+ assertEquals(
+ Boolean.FALSE,
+ new XsiBoolean().evaluate(Arrays.asList((String)null)));
+ }
+
+
+ public void testEmptyArglist() throws Exception
+ {
+ try
+ {
+ new XsiBoolean().evaluate(Collections.<String>emptyList());
+ fail("didn't throw on empty list");
+ }
+ catch (XPathFunctionException e)
+ {
+ // success
+ }
+ }
+
+
+ public void testInSitu() throws Exception
+ {
+ XPathWrapper xpath1 = new XPathWrapper("//*[ns:boolean(text())]")
+ .bindFunction(new XsiBoolean(), "ns");
+ List<Node> result1 = xpath1.evaluate(_root);
+ assertEquals(2, result1.size());
+ assertSame(_child1, result1.get(0));
+ assertSame(_child3, result1.get(1));
+
+ XPathWrapper xpath2 = new XPathWrapper("//*[ns:boolean(@attr)]")
+ .bindFunction(new XsiBoolean(), "ns");
+ List<Node> result2 = xpath2.evaluate(_root);
+ assertEquals(2, result2.size());
+ assertSame(_child2, result2.get(0));
+ assertSame(_child4, result2.get(1));
+ }
+}
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