Added XPath template.

xml/src/test/java/org/springframework/xml/xpath/AbstractXPathTemplateTestCase.java

@@ -0,0 +1,158 @@
+/*
+ * Copyright 2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      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,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.xml.xpath;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.List;
+import javax.xml.parsers.DocumentBuilder;
+import javax.xml.parsers.DocumentBuilderFactory;
+import javax.xml.parsers.ParserConfigurationException;
+import javax.xml.transform.Source;
+import javax.xml.transform.dom.DOMSource;
+import javax.xml.transform.stream.StreamSource;
+
+import junit.framework.TestCase;
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.xml.sax.SaxUtils;
+import org.springframework.xml.transform.ResourceSource;
+import org.w3c.dom.DOMException;
+import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.xml.sax.SAXException;
+
+public abstract class AbstractXPathTemplateTestCase extends TestCase {
+
+    XPathOperations template;
+
+    private Source namespaces;
+
+    private Source nonamespaces;
+
+    protected final void setUp() throws Exception {
+        template = createTemplate();
+        namespaces = new ResourceSource(new ClassPathResource("namespaces.xml", AbstractXPathTemplateTestCase.class));
+        nonamespaces =
+                new ResourceSource(new ClassPathResource("nonamespaces.xml", AbstractXPathTemplateTestCase.class));
+    }
+
+    protected abstract XPathOperations createTemplate() throws Exception;
+
+    public void testEvaluateAsBoolean() {
+        boolean result = template.evaluateAsBoolean("/root/child/boolean", nonamespaces);
+        assertTrue("Invalid result", result);
+    }
+
+    public void testEvaluateAsBooleanNamespaces() {
+        boolean result = template.evaluateAsBoolean("/prefix1:root/prefix2:child/prefix2:boolean", namespaces);
+        assertTrue("Invalid result", result);
+    }
+
+    public void testEvaluateAsDouble() {
+        double result = template.evaluateAsDouble("/root/child/number", nonamespaces);
+        assertEquals("Invalid result", 42D, result, 0D);
+    }
+
+    public void testEvaluateAsDoubleNamespaces() {
+        double result = template.evaluateAsDouble("/prefix1:root/prefix2:child/prefix2:number", namespaces);
+        assertEquals("Invalid result", 42D, result, 0D);
+    }
+
+    public void testEvaluateAsNode() {
+        Node result = template.evaluateAsNode("/root/child", nonamespaces);
+        assertNotNull("Invalid result", result);
+        assertEquals("Invalid localname", "child", result.getLocalName());
+    }
+
+    public void testEvaluateAsNodeNamespaces() {
+        Node result = template.evaluateAsNode("/prefix1:root/prefix2:child", namespaces);
+        assertNotNull("Invalid result", result);
+        assertEquals("Invalid localname", "child", result.getLocalName());
+    }
+
+    public void testEvaluateAsNodes() {
+        List results = template.evaluateAsNodeList("/root/child/*", nonamespaces);
+        assertNotNull("Invalid result", results);
+        assertEquals("Invalid amount of results", 3, results.size());
+    }
+
+    public void testEvaluateAsNodesNamespaces() {
+        List results = template.evaluateAsNodeList("/prefix1:root/prefix2:child/*", namespaces);
+        assertNotNull("Invalid result", results);
+        assertEquals("Invalid amount of results", 3, results.size());
+    }
+
+    public void testEvaluateAsStringNamespaces() throws IOException, SAXException {
+        String result = template.evaluateAsString("/prefix1:root/prefix2:child/prefix2:text", namespaces);
+        assertEquals("Invalid result", "text", result);
+    }
+
+    public void testEvaluateAsString() throws IOException, SAXException {
+        String result = template.evaluateAsString("/root/child/text", nonamespaces);
+        assertEquals("Invalid result", "text", result);
+    }
+
+    public void testEvaluateDomSource() throws IOException, SAXException, ParserConfigurationException {
+        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();
+        documentBuilderFactory.setNamespaceAware(true);
+        DocumentBuilder documentBuilder = documentBuilderFactory.newDocumentBuilder();
+        Document document = documentBuilder.parse(SaxUtils.createInputSource(
+                new ClassPathResource("nonamespaces.xml", AbstractXPathTemplateTestCase.class)));
+
+        String result = template.evaluateAsString("/root/child/text", new DOMSource(document));
+        assertEquals("Invalid result", "text", result);
+    }
+
+    public void testEvaluateStreamSource() throws IOException, SAXException, ParserConfigurationException {
+        InputStream in = AbstractXPathTemplateTestCase.class.getResourceAsStream("nonamespaces.xml");
+        String result = template.evaluateAsString("/root/child/text", new StreamSource(in));
+        assertEquals("Invalid result", "text", result);
+    }
+
+    public void testInvalidExpression() {
+        try {
+            template.evaluateAsBoolean("\\", namespaces);
+            fail("No XPathException thrown");
+        }
+        catch (XPathException ex) {
+            // Expected behaviour
+        }
+    }
+
+    public void testEvaluateAsObject() throws Exception {
+        String result = (String) template.evaluateAsObject("/root/child", nonamespaces, new NodeMapper() {
+            public Object mapNode(Node node, int nodeNum) throws DOMException {
+                return node.getLocalName();
+            }
+        });
+        assertNotNull("Invalid result", result);
+        assertEquals("Invalid localname", "child", result);
+    }
+
+    public void testEvaluate() throws Exception {
+        List results = template.evaluate("/root/child/*", nonamespaces, new NodeMapper() {
+            public Object mapNode(Node node, int nodeNum) throws DOMException {
+                return node.getLocalName();
+            }
+        });
+        assertNotNull("Invalid result", results);
+        assertEquals("Invalid amount of results", 3, results.size());
+        assertEquals("Invalid first result", "text", results.get(0));
+        assertEquals("Invalid first result", "number", results.get(1));
+        assertEquals("Invalid first result", "boolean", results.get(2));
+    }
+}

xml/src/test/java/org/springframework/xml/xpath/JaxenXPathTemplateTest.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      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,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.xml.xpath;
+
+import java.util.Properties;
+
+public class JaxenXPathTemplateTest extends AbstractXPathTemplateTestCase {
+
+    protected XPathOperations createTemplate() throws Exception {
+        JaxenXPathTemplate template = new JaxenXPathTemplate();
+        Properties namespaces = new Properties();
+        namespaces.setProperty("prefix1", "namespace1");
+        namespaces.setProperty("prefix2", "namespace2");
+        template.setNamespaces(namespaces);
+        return template;
+    }
+
+}

xml/src/test/java/org/springframework/xml/xpath/Jaxp13XPathTemplateTest.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      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,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.xml.xpath;
+
+import java.util.Properties;
+
+public class Jaxp13XPathTemplateTest extends AbstractXPathTemplateTestCase {
+
+    protected XPathOperations createTemplate() throws Exception {
+        Jaxp13XPathTemplate template = new Jaxp13XPathTemplate();
+        Properties namespaces = new Properties();
+        namespaces.setProperty("prefix1", "namespace1");
+        namespaces.setProperty("prefix2", "namespace2");
+        template.setNamespaces(namespaces);
+        return template;
+    }
+
+}