Commons JXPath example source code file (XMLModelTestCase.java)
The Commons JXPath XMLModelTestCase.java source code
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* this work for additional information regarding copyright ownership.
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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package org.apache.commons.jxpath.ri.model;
import org.apache.commons.jxpath.AbstractFactory;
import org.apache.commons.jxpath.IdentityManager;
import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.JXPathException;
import org.apache.commons.jxpath.JXPathTestCase;
import org.apache.commons.jxpath.Pointer;
import org.apache.commons.jxpath.Variables;
import org.apache.commons.jxpath.xml.DocumentContainer;
/**
* Abstract superclass for pure XPath 1.0. Subclasses
* apply the same XPaths to contexts using different models:
* DOM, JDOM etc.
*
* @author Dmitri Plotnikov
* @version $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
*/
public abstract class XMLModelTestCase extends JXPathTestCase {
protected JXPathContext context;
public void setUp() {
if (context == null) {
DocumentContainer docCtr = createDocumentContainer();
context = createContext();
Variables vars = context.getVariables();
vars.declareVariable("document", docCtr.getValue());
vars.declareVariable("container", docCtr);
vars.declareVariable("element", context.getPointer("vendor/location/address/street").getNode());
}
}
protected abstract String getModel();
protected DocumentContainer createDocumentContainer() {
return new DocumentContainer(
JXPathTestCase.class.getResource("Vendor.xml"),
getModel());
}
protected abstract AbstractFactory getAbstractFactory();
protected JXPathContext createContext() {
JXPathContext context =
JXPathContext.newContext(createDocumentContainer());
context.setFactory(getAbstractFactory());
context.registerNamespace("product", "productNS");
return context;
}
/**
* An XML signature is used to determine if we have the right result
* after a modification of XML by JXPath. It is basically a piece
* of simplified XML.
*/
protected abstract String getXMLSignature(
Object node,
boolean elements,
boolean attributes,
boolean text,
boolean pi);
protected void assertXMLSignature(
JXPathContext context,
String path,
String signature,
boolean elements,
boolean attributes,
boolean text,
boolean pi)
{
Object node = context.getPointer(path).getNode();
String sig = getXMLSignature(node, elements, attributes, text, pi);
assertEquals("XML Signature mismatch: ", signature, sig);
}
// ------------------------------------------------ Individual Test Methods
public void testDocumentOrder() {
assertDocumentOrder(
context,
"vendor/location",
"vendor/location/address/street",
-1);
assertDocumentOrder(
context,
"vendor/location[@id = '100']",
"vendor/location[@id = '101']",
-1);
assertDocumentOrder(
context,
"vendor//price:amount",
"vendor/location",
1);
}
public void testSetValue() {
assertXPathSetValue(
context,
"vendor/location[@id = '100']",
"New Text");
assertXMLSignature(
context,
"vendor/location[@id = '100']",
"<E>New Text",
false,
false,
true,
false);
assertXPathSetValue(
context,
"vendor/location[@id = '101']",
"Replacement Text");
assertXMLSignature(
context,
"vendor/location[@id = '101']",
"<E>Replacement Text",
false,
false,
true,
false);
}
/**
* Test JXPathContext.createPath() with various arguments
*/
public void testCreatePath() {
// Create a DOM element
assertXPathCreatePath(
context,
"/vendor[1]/location[3]",
"",
"/vendor[1]/location[3]");
// Create a DOM element with contents
assertXPathCreatePath(
context,
"/vendor[1]/location[3]/address/street",
"",
"/vendor[1]/location[3]/address[1]/street[1]");
// Create a DOM attribute
assertXPathCreatePath(
context,
"/vendor[1]/location[2]/@manager",
"",
"/vendor[1]/location[2]/@manager");
assertXPathCreatePath(
context,
"/vendor[1]/location[1]/@name",
"local",
"/vendor[1]/location[1]/@name");
assertXPathCreatePathAndSetValue(
context,
"/vendor[1]/location[4]/@manager",
"",
"/vendor[1]/location[4]/@manager");
context.registerNamespace("price", "priceNS");
// Create a DOM element
assertXPathCreatePath(
context,
"/vendor[1]/price:foo/price:bar",
"",
"/vendor[1]/price:foo[1]/price:bar[1]");
}
/**
* Test JXPath.createPathAndSetValue() with various arguments
*/
public void testCreatePathAndSetValue() {
// Create a XML element
assertXPathCreatePathAndSetValue(
context,
"vendor/location[3]",
"",
"/vendor[1]/location[3]");
// Create a DOM element with contents
assertXPathCreatePathAndSetValue(
context,
"vendor/location[3]/address/street",
"Lemon Circle",
"/vendor[1]/location[3]/address[1]/street[1]");
// Create an attribute
assertXPathCreatePathAndSetValue(
context,
"vendor/location[2]/@manager",
"John Doe",
"/vendor[1]/location[2]/@manager");
assertXPathCreatePathAndSetValue(
context,
"vendor/location[1]/@manager",
"John Doe",
"/vendor[1]/location[1]/@manager");
assertXPathCreatePathAndSetValue(
context,
"/vendor[1]/location[4]/@manager",
"James Dow",
"/vendor[1]/location[4]/@manager");
assertXPathCreatePathAndSetValue(
context,
"vendor/product/product:name/attribute::price:language",
"English",
"/vendor[1]/product[1]/product:name[1]/@price:language");
context.registerNamespace("price", "priceNS");
// Create a DOM element
assertXPathCreatePathAndSetValue(
context,
"/vendor[1]/price:foo/price:bar",
"123.20",
"/vendor[1]/price:foo[1]/price:bar[1]");
}
/**
* Test JXPathContext.removePath() with various arguments
*/
public void testRemovePath() {
// Remove XML nodes
context.removePath("vendor/location[@id = '101']//street/text()");
assertEquals(
"Remove DOM text",
"",
context.getValue("vendor/location[@id = '101']//street"));
context.removePath("vendor/location[@id = '101']//street");
assertEquals(
"Remove DOM element",
new Double(0),
context.getValue("count(vendor/location[@id = '101']//street)"));
context.removePath("vendor/location[@id = '100']/@name");
assertEquals(
"Remove DOM attribute",
new Double(0),
context.getValue("count(vendor/location[@id = '100']/@name)"));
}
public void testID() {
context.setIdentityManager(new IdentityManager() {
public Pointer getPointerByID(JXPathContext context, String id) {
NodePointer ptr = (NodePointer) context.getPointer("/");
ptr = ptr.getValuePointer(); // Unwrap the container
return ptr.getPointerByID(context, id);
}
});
assertXPathValueAndPointer(
context,
"id(101)//street",
"Tangerine Drive",
"id('101')/address[1]/street[1]");
assertXPathPointerLenient(
context,
"id(105)/address/street",
"id(105)/address/street");
}
public void testAxisChild() {
assertXPathValue(
context,
"vendor/location/address/street",
"Orchard Road");
// child:: - first child does not match, need to search
assertXPathValue(
context,
"vendor/location/address/city",
"Fruit Market");
// local-name(qualified)
assertXPathValue(
context,
"local-name(vendor/product/price:amount)",
"amount");
// local-name(non-qualified)
assertXPathValue(context, "local-name(vendor/location)", "location");
// name (qualified)
assertXPathValue(
context,
"name(vendor/product/price:amount)",
"value:amount");
// name (non-qualified)
assertXPathValue(
context,
"name(vendor/location)",
"location");
// namespace-uri (qualified)
assertXPathValue(
context,
"namespace-uri(vendor/product/price:amount)",
"priceNS");
// default namespace does not affect search
assertXPathValue(context, "vendor/product/prix", "934.99");
assertXPathValue(context, "/vendor/contact[@name='jim']", "Jim");
boolean nsv = false;
try {
context.setLenient(false);
context.getValue("/vendor/contact[@name='jane']");
}
catch (JXPathException ex) {
nsv = true;
}
assertTrue("No such value: /vendor/contact[@name='jim']", nsv);
nsv = false;
try {
context.setLenient(false);
context.getValue("/vendor/contact[@name='jane']/*");
}
catch (JXPathException ex) {
nsv = true;
}
assertTrue("No such value: /vendor/contact[@name='jane']/*", nsv);
// child:: with a wildcard
assertXPathValue(
context,
"count(vendor/product/price:*)",
new Double(2));
// child:: with the default namespace
assertXPathValue(context, "count(vendor/product/*)", new Double(4));
// child:: with a qualified name
assertXPathValue(context, "vendor/product/price:amount", "45.95");
// null default namespace
context.registerNamespace("x", "temp");
assertXPathValue(context, "vendor/x:pos//number", "109");
}
public void testAxisChildIndexPredicate() {
assertXPathValue(
context,
"vendor/location[2]/address/street",
"Tangerine Drive");
}
public void testAxisDescendant() {
// descendant::
assertXPathValue(context, "//street", "Orchard Road");
// descendent:: with a namespace and wildcard
assertXPathValue(context, "count(//price:*)", new Double(2));
assertXPathValueIterator(context, "vendor//saleEnds", list("never"));
assertXPathValueIterator(context, "vendor//promotion", list(""));
assertXPathValueIterator(
context,
"vendor//saleEnds[../@stores = 'all']",
list("never"));
assertXPathValueIterator(
context,
"vendor//promotion[../@stores = 'all']",
list(""));
}
// public void testAxisDescendantDocumentOrder() {
// Iterator iter = context.iteratePointers("//*");
// while (iter.hasNext()) {
// System.err.println(iter.next());
// }
// }
public void testAxisParent() {
// parent::
assertXPathPointer(
context,
"//street/..",
"/vendor[1]/location[1]/address[1]");
// parent:: (note reverse document order)
assertXPathPointerIterator(
context,
"//street/..",
list(
"/vendor[1]/location[2]/address[1]",
"/vendor[1]/location[1]/address[1]"));
// parent:: with a namespace and wildcard
assertXPathValue(
context,
"vendor/product/price:sale/saleEnds/parent::price:*" + "/saleEnds",
"never");
}
public void testAxisFollowingSibling() {
// following-sibling::
assertXPathValue(
context,
"vendor/location[.//employeeCount = 10]/"
+ "following-sibling::location//street",
"Tangerine Drive");
// following-sibling:: produces the correct pointer
assertXPathPointer(
context,
"vendor/location[.//employeeCount = 10]/"
+ "following-sibling::location//street",
"/vendor[1]/location[2]/address[1]/street[1]");
}
public void testAxisPrecedingSibling() {
// preceding-sibling:: produces the correct pointer
assertXPathPointer(
context,
"//location[2]/preceding-sibling::location//street",
"/vendor[1]/location[1]/address[1]/street[1]");
}
public void testAxisPreceding() {
// preceding::
assertXPathPointer(
context,
"//location[2]/preceding-sibling::location//street",
"/vendor[1]/location[1]/address[1]/street[1]");
assertXPathPointer(context, "//location[2]/preceding::*[1]", "/vendor[1]/location[1]/employeeCount[1]");
assertXPathPointer(context, "//location[2]/preceding::node()[3]", "/vendor[1]/location[1]/employeeCount[1]/text()[1]");
assertXPathPointer(context, "//location[2]/preceding::node()[4]", "/vendor[1]/location[1]/employeeCount[1]");
}
public void testAxisAttribute() {
// attribute::
assertXPathValue(context, "vendor/location/@id", "100");
// attribute:: produces the correct pointer
assertXPathPointer(
context,
"vendor/location/@id",
"/vendor[1]/location[1]/@id");
// iterate over attributes
assertXPathValueIterator(
context,
"vendor/location/@id",
list("100", "101"));
// Using different prefixes for the same namespace
assertXPathValue(
context,
"vendor/product/price:amount/@price:discount",
"10%");
// namespace uri for an attribute
assertXPathValue(
context,
"namespace-uri(vendor/product/price:amount/@price:discount)",
"priceNS");
// local name of an attribute
assertXPathValue(
context,
"local-name(vendor/product/price:amount/@price:discount)",
"discount");
// name for an attribute
assertXPathValue(
context,
"name(vendor/product/price:amount/@price:discount)",
"price:discount");
// attribute:: with the default namespace
assertXPathValue(
context,
"vendor/product/price:amount/@discount",
"20%");
// namespace uri of an attribute with the default namespace
assertXPathValue(
context,
"namespace-uri(vendor/product/price:amount/@discount)",
"");
// local name of an attribute with the default namespace
assertXPathValue(
context,
"local-name(vendor/product/price:amount/@discount)",
"discount");
// name of an attribute with the default namespace
assertXPathValue(
context,
"name(vendor/product/price:amount/@discount)",
"discount");
// attribute:: with a namespace and wildcard
assertXPathValueIterator(
context,
"vendor/product/price:amount/@price:*",
list("10%"));
// attribute:: with a wildcard
assertXPathValueIterator(
context,
"vendor/location[1]/@*",
set("100", "", "local"));
// attribute:: with default namespace and wildcard
assertXPathValueIterator(
context,
"vendor/product/price:amount/@*",
//use a set because DOM returns attrs sorted by name, JDOM by occurrence order:
set("10%", "20%"));
// attribute::node()
assertXPathValueIterator(
context,
"vendor/product/price:amount/attribute::node()",
//use a set because DOM returns attrs sorted by name, JDOM by occurrence order:
set("10%", "20%"));
// attribute:: select non-ns'd attributes only
assertXPathValueIterator(
context,
"vendor/product/price:amount/@*[namespace-uri() = '']",
list("20%"));
// Empty attribute
assertXPathValue(context, "vendor/location/@manager", "");
// Missing attribute
assertXPathValueLenient(context, "vendor/location/@missing", null);
// Missing attribute with namespace
assertXPathValueLenient(context, "vendor/location/@miss:missing", null);
// Using attribute in a predicate
assertXPathValue(
context,
"vendor/location[@id='101']//street",
"Tangerine Drive");
assertXPathValueIterator(
context,
"/vendor/location[1]/@*[name()!= 'manager']", list("100",
"local"));
}
public void testAxisNamespace() {
// namespace::
assertXPathValueAndPointer(
context,
"vendor/product/prix/namespace::price",
"priceNS",
"/vendor[1]/product[1]/prix[1]/namespace::price");
// namespace::*
assertXPathValue(
context,
"count(vendor/product/namespace::*)",
new Double(3));
// name of namespace
assertXPathValue(
context,
"name(vendor/product/prix/namespace::price)",
"price");
// local name of namespace
assertXPathValue(
context,
"local-name(vendor/product/prix/namespace::price)",
"price");
}
public void testAxisAncestor() {
// ancestor::
assertXPathValue(
context,
"vendor/product/price:sale/saleEnds/"
+ "ancestor::price:sale/saleEnds",
"never");
// ancestor:: with a wildcard
assertXPathValue(
context,
"vendor/product/price:sale/saleEnds/ancestor::price:*"
+ "/saleEnds",
"never");
}
public void testAxisAncestorOrSelf() {
// ancestor-or-self::
assertXPathValue(
context,
"vendor/product/price:sale/"
+ "ancestor-or-self::price:sale/saleEnds",
"never");
}
public void testAxisFollowing() {
assertXPathValueIterator(
context,
"vendor/contact/following::location//street",
list("Orchard Road", "Tangerine Drive"));
// following:: with a namespace
assertXPathValue(
context,
"//location/following::price:sale/saleEnds",
"never");
assertXPathPointer(context, "//location[2]/following::node()[2]", "/vendor[1]/product[1]");
}
public void testAxisSelf() {
// self:: with a namespace
assertXPathValue(
context,
"//price:sale/self::price:sale/saleEnds",
"never");
// self:: with an unmatching name
assertXPathValueLenient(context, "//price:sale/self::x/saleEnds", null);
}
public void testNodeTypeComment() {
// comment()
assertXPathValue(
context,
"//product/comment()",
"We are not buying this product, ever");
}
public void testNodeTypeText() {
// text()
//Note that this is questionable as the XPath spec tells us "." is short for self::node() and text() is by definition _not_ a node:
assertXPathValue(
context,
"//product/text()[. != '']",
"We love this product.");
// text() pointer
assertXPathPointer(
context,
"//product/text()",
"/vendor[1]/product[1]/text()[1]");
}
public void testNodeTypeProcessingInstruction() {
// processing-instruction() without an argument
assertXPathValue(
context,
"//product/processing-instruction()",
"do not show anybody");
// processing-instruction() with an argument
assertXPathValue(
context,
"//product/processing-instruction('report')",
"average only");
// processing-instruction() pointer without an argument
assertXPathPointer(
context,
"//product/processing-instruction('report')",
"/vendor[1]/product[1]/processing-instruction('report')[1]");
// processing-instruction name
assertXPathValue(
context,
"name(//product/processing-instruction()[1])",
"security");
}
public void testLang() {
// xml:lang built-in attribute
assertXPathValue(context, "//product/prix/@xml:lang", "fr");
// lang() used the built-in xml:lang attribute
assertXPathValue(context, "//product/prix[lang('fr')]", "934.99");
// Default language
assertXPathValue(
context,
"//product/price:sale[lang('en')]/saleEnds",
"never");
}
public void testDocument() {
assertXPathValue(
context,
"$document/vendor/location[1]//street",
"Orchard Road");
assertXPathPointer(
context,
"$document/vendor/location[1]//street",
"$document/vendor[1]/location[1]/address[1]/street[1]");
assertXPathValue(context, "$document/vendor//street", "Orchard Road");
}
public void testContainer() {
assertXPathValue(context, "$container/vendor//street", "Orchard Road");
assertXPathValue(context, "$container//street", "Orchard Road");
assertXPathPointer(
context,
"$container//street",
"$container/vendor[1]/location[1]/address[1]/street[1]");
// Conversion to number
assertXPathValue(
context,
"number(vendor/location/employeeCount)",
new Double(10));
}
public void testElementInVariable() {
assertXPathValue(context, "$element", "Orchard Road");
}
public void testTypeConversions() {
// Implicit conversion to number
assertXPathValue(
context,
"vendor/location/employeeCount + 1",
new Double(11));
// Implicit conversion to boolean
assertXPathValue(
context,
"vendor/location/employeeCount and true()",
Boolean.TRUE);
}
public void testBooleanFunction() {
assertXPathValue(
context,
"boolean(vendor//saleEnds[../@stores = 'all'])",
Boolean.TRUE);
assertXPathValue(
context,
"boolean(vendor//promotion[../@stores = 'all'])",
Boolean.TRUE);
assertXPathValue(
context,
"boolean(vendor//promotion[../@stores = 'some'])",
Boolean.FALSE);
}
public void testFunctionsLastAndPosition() {
assertXPathPointer(
context,
"vendor//location[last()]",
"/vendor[1]/location[2]");
}
public void testNamespaceMapping() {
context.registerNamespace("rate", "priceNS");
context.registerNamespace("goods", "productNS");
assertEquals("Context node namespace resolution",
"priceNS",
context.getNamespaceURI("price"));
assertEquals("Registered namespace resolution",
"priceNS",
context.getNamespaceURI("rate"));
// child:: with a namespace and wildcard
assertXPathValue(context,
"count(vendor/product/rate:*)",
new Double(2));
assertXPathValue(context,
"vendor[1]/product[1]/rate:amount[1]/@rate:discount", "10%");
assertXPathValue(context,
"vendor[1]/product[1]/rate:amount[1]/@price:discount", "10%");
assertXPathValue(context,
"vendor[1]/product[1]/price:amount[1]/@rate:discount", "10%");
assertXPathValue(context,
"vendor[1]/product[1]/price:amount[1]/@price:discount", "10%");
// Preference for externally registered namespace prefix
assertXPathValueAndPointer(context,
"//product:name",
"Box of oranges",
"/vendor[1]/product[1]/goods:name[1]");
// Same, but with a child context
JXPathContext childCtx =
JXPathContext.newContext(context, context.getContextBean());
assertXPathValueAndPointer(childCtx,
"//product:name",
"Box of oranges",
"/vendor[1]/product[1]/goods:name[1]");
// Same, but with a relative context
JXPathContext relativeCtx =
context.getRelativeContext(context.getPointer("/vendor"));
assertXPathValueAndPointer(relativeCtx,
"product/product:name",
"Box of oranges",
"/vendor[1]/product[1]/goods:name[1]");
}
public void testUnion() {
assertXPathValue(context, "/vendor[1]/contact[1] | /vendor[1]/contact[4]", "John");
assertXPathValue(context, "/vendor[1]/contact[4] | /vendor[1]/contact[1]", "John");
}
public void testNodes() {
Pointer pointer = context.getPointer("/vendor[1]/contact[1]");
assertFalse(pointer.getNode().equals(pointer.getValue()));
}
}
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