Branch to experiment with dynamic component interfaces and implementations.

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@965346 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 120 insertions, 0 deletions

diff --git a/sandbox/sebastien/java/dynamic/modules/common-xml/src/test/java/org/apache/tuscany/sca/common/xml/xpath/XPathHelperTestCase.java b/sandbox/sebastien/java/dynamic/modules/common-xml/src/test/java/org/apache/tuscany/sca/common/xml/xpath/XPathHelperTestCase.java
new file mode 100644
index 0000000000..a2922e9173
--- /dev/null
+++ b/sandbox/sebastien/java/dynamic/modules/common-xml/src/test/java/org/apache/tuscany/sca/common/xml/xpath/XPathHelperTestCase.java
@@ -0,0 +1,120 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.tuscany.sca.common.xml.xpath;
+
+import javax.xml.stream.XMLStreamReader;
+import javax.xml.xpath.XPath;
+import javax.xml.xpath.XPathConstants;
+import javax.xml.xpath.XPathExpression;
+
+import org.apache.tuscany.sca.common.xml.dom.DOMHelper;
+import org.apache.tuscany.sca.common.xml.stax.StAXHelper;
+import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.junit.AfterClass;
+import org.junit.Assert;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+/**
+ * 
+ */
+public class XPathHelperTestCase {
+    private static XPathHelper xpathHelper;
+    private static StAXHelper staxHelper;
+    private static DOMHelper domHelper;
+
+    private static String XML =
+        "<r:root name=\"root\" xmlns:r=\"http://root\">" + "<c:child xmlns:c=\"http://child\" name=\"child\">"
+            + "<c:child1 xmlns:c=\"http://child1\" name=\"child1\"/>"
+            + "</c:child>"
+            + "</r:root>";
+
+    private static String XPATH =
+        "<policySet attachTo=\"//c:child1[@name='child1']/self::node()\" xmlns:c=\"http://child1\" xmlns=\"http://p\">" + "<child xmlns:c=\"http://c2\"/></policySet>";
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @BeforeClass
+    public static void setUpBeforeClass() throws Exception {
+        ExtensionPointRegistry registry = new DefaultExtensionPointRegistry();
+        xpathHelper = XPathHelper.getInstance(registry);
+        domHelper = DOMHelper.getInstance(registry);
+        staxHelper = StAXHelper.getInstance(registry);
+    }
+
+    @Test
+    public void testNewXPath() {
+        XPath path = xpathHelper.newXPath();
+        Assert.assertNotNull(path);
+    }
+
+    @Test
+    public void testCompile() throws Exception {
+        XMLStreamReader reader = staxHelper.createXMLStreamReader(XPATH);
+        reader.nextTag();
+        String xpath = reader.getAttributeValue(null, "attachTo");
+        XPathExpression expression = xpathHelper.compile(reader.getNamespaceContext(), xpath);
+        // Advance the reader so that the namespace context changes its prefix/namespace mapping
+        reader.nextTag();
+        reader.close();
+
+        Document doc = domHelper.load(XML);
+        NodeList nodes = (NodeList)expression.evaluate(doc, XPathConstants.NODESET);
+        Assert.assertEquals(1, nodes.getLength());
+        Node node = nodes.item(0);
+        Assert.assertTrue(node instanceof Element);
+        Assert.assertEquals(node.getNodeName(), "c:child1");
+    }
+
+    @Test
+    public void testCompile2() throws Exception {
+        XMLStreamReader reader = staxHelper.createXMLStreamReader(XPATH);
+        reader.nextTag();
+        String xpathExp = reader.getAttributeValue(null, "attachTo");
+        XPath xpath = xpathHelper.newXPath();
+        // Compile the expression without taking a snapshot of the namespace context
+        XPathExpression expression = xpathHelper.compile(xpath, reader.getNamespaceContext(), xpathExp);
+        // Advance the reader so that the namespace context changes its prefix/namespace mapping
+        reader.nextTag();
+        reader.close();
+
+        Document doc = domHelper.load(XML);
+        NodeList nodes = (NodeList)expression.evaluate(doc, XPathConstants.NODESET);
+        Assert.assertEquals(1, nodes.getLength());
+        Node node = nodes.item(0);
+        Assert.assertTrue(node instanceof Element);
+        Assert.assertEquals(node.getNodeName(), "c:child1");
+    }
+
+    /**
+     * @throws java.lang.Exception
+     */
+    @AfterClass
+    public static void tearDownAfterClass() throws Exception {
+        xpathHelper = null;
+    }
+
+}