Author: dkulp
Date: Mon Jan 12 13:43:13 2009
New Revision: 733915
URL: http://svn.apache.org/viewvc?rev=733915&view=rev
Log:
Fix build failure
Modified:
cxf/branches/2.1.x-fixes/common/common/src/main/java/org/apache/cxf/helpers/DOMUtils.java
Modified:
cxf/branches/2.1.x-fixes/common/common/src/main/java/org/apache/cxf/helpers/DOMUtils.java
URL:
http://svn.apache.org/viewvc/cxf/branches/2.1.x-fixes/common/common/src/main/java/org/apache/cxf/helpers/DOMUtils.java?rev=733915&r1=733914&r2=733915&view=diff
==============================================================================
---
cxf/branches/2.1.x-fixes/common/common/src/main/java/org/apache/cxf/helpers/DOMUtils.java
(original)
+++
cxf/branches/2.1.x-fixes/common/common/src/main/java/org/apache/cxf/helpers/DOMUtils.java
Mon Jan 12 13:43:13 2009
@@ -22,10 +22,13 @@
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
+import java.io.Reader;
import java.io.StringReader;
+import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
+import javax.xml.XMLConstants;
import javax.xml.namespace.QName;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
@@ -38,6 +41,7 @@
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
+import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
@@ -49,7 +53,6 @@
import org.apache.cxf.common.util.StringUtils;
-
/**
* Few simple utils to read DOM. This is originally from the Jakarta Commons
* Modeler.
@@ -57,8 +60,8 @@
* @author Costin Manolache
*/
public final class DOMUtils {
- static final DocumentBuilderFactory FACTORY =
DocumentBuilderFactory.newInstance();
- static DocumentBuilder builder;
+ private static final DocumentBuilderFactory FACTORY =
DocumentBuilderFactory.newInstance();
+ private static DocumentBuilder builder;
private static final String XMLNAMESPACE = "xmlns";
private DOMUtils() {
@@ -71,8 +74,24 @@
}
return builder;
}
+
+ /**
+ * This function is much like getAttribute, but returns null, not "", for
a nonexistent attribute.
+ * @param e
+ * @param attributeName
+ * @return
+ */
+ public static String getAttributeValueEmptyNull(Element e, String
attributeName) {
+ Attr node = e.getAttributeNode(attributeName);
+ if (node == null) {
+ return null;
+ }
+ return node.getValue();
+ }
+
+
/**
- * Get the trimed text content of a node or null if there is no text
+ * Get the trimmed text content of a node or null if there is no text
*/
public static String getContent(Node n) {
if (n == null) {
@@ -248,11 +267,25 @@
return null;
}
+ /**
+ * Return the first element child with the specified qualified name.
+ * @param parent
+ * @param q
+ * @return
+ */
public static Element getFirstChildWithName(Element parent, QName q) {
String ns = q.getNamespaceURI();
String lp = q.getLocalPart();
return getFirstChildWithName(parent, ns, lp);
}
+
+ /**
+ * Return the first element child with the specified qualified name.
+ * @param parent
+ * @param ns
+ * @param lp
+ * @return
+ */
public static Element getFirstChildWithName(Element parent, String ns,
String lp) {
for (Node n = parent.getFirstChild(); n != null; n =
n.getNextSibling()) {
if (n instanceof Element) {
@@ -263,10 +296,34 @@
}
}
}
- return (Element)n;
+ return null;
}
+
/**
- * Get the first direct child with a given type
+ * Return child elements with specified name.
+ * @param parent
+ * @param ns
+ * @param localName
+ * @return
+ */
+ public static List<Element> getChildrenWithName(Element parent, String ns,
String localName) {
+ List<Element> r = new ArrayList<Element>();
+ for (Node n = parent.getFirstChild(); n != null; n =
n.getNextSibling()) {
+ if (n instanceof Element) {
+ Element e = (Element) n;
+ if (ns.equals(e.getNamespaceURI()) &&
localName.equals(e.getLocalName())) {
+ r.add(e);
+ }
+ }
+ }
+ return r;
+ }
+
+ /**
+ * Get the first child of the specified type.
+ * @param parent
+ * @param type
+ * @return
*/
public static Node getChild(Node parent, int type) {
Node n = parent.getFirstChild();
@@ -302,8 +359,7 @@
if (type >= 0 && node.getNodeType() != type) {
continue;
}
- // System.out.println("getNode: " + name + " " +
- // node.getNodeName());
+
if (name == null) {
return node;
}
@@ -342,6 +398,25 @@
return db.parse(is);
}
+ public static Document readXml(Reader is) throws SAXException, IOException,
+ ParserConfigurationException {
+ DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
+
+ dbf.setValidating(false);
+ dbf.setIgnoringComments(false);
+ dbf.setIgnoringElementContentWhitespace(true);
+ dbf.setNamespaceAware(true);
+ // dbf.setCoalescing(true);
+ // dbf.setExpandEntityReferences(true);
+
+ DocumentBuilder db = null;
+ db = dbf.newDocumentBuilder();
+ db.setEntityResolver(new NullResolver());
+
+ // db.setErrorHandler( new MyErrorHandler());
+ InputSource ips = new InputSource(is);
+ return db.parse(ips);
+ }
public static Document readXml(StreamSource is) throws SAXException,
IOException,
ParserConfigurationException {
@@ -382,6 +457,7 @@
throw new RuntimeException("Couldn't find a DOM parser.", e);
}
}
+
public static Document createDocument() {
try {
return getBuilder().newDocument();
@@ -410,6 +486,38 @@
}
return null;
}
+
+ /**
+ * Get all prefixes defined, up to the root, for a namespace URI.
+ * @param element
+ * @param namespaceUri
+ * @param prefixes
+ */
+ public static void getPrefixesRecursive(Element element, String
namespaceUri, List<String> prefixes) {
+ getPrefixes(element, namespaceUri, prefixes);
+ Node parent = element.getParentNode();
+ if (parent instanceof Element) {
+ getPrefixesRecursive((Element)parent, namespaceUri, prefixes);
+ }
+ }
+
+ /**
+ * Get all prefixes defined on this element for the specified namespace.
+ * @param element
+ * @param namespaceUri
+ * @param prefixes
+ */
+ public static void getPrefixes(Element element, String namespaceUri,
List<String> prefixes) {
+ NamedNodeMap atts = element.getAttributes();
+ for (int i = 0; i < atts.getLength(); i++) {
+ Node node = atts.item(i);
+ String name = node.getNodeName();
+ if (namespaceUri.equals(node.getNodeValue())
+ && (name != null && (XMLNAMESPACE.equals(name) ||
name.startsWith(XMLNAMESPACE + ":")))) {
+ prefixes.add(node.getPrefix());
+ }
+ }
+ }
public static String createNamespace(Element el, String ns) {
String p = "ns1";
@@ -496,4 +604,36 @@
elem = getNextElement(elem);
}
}
+
+
+ /**
+ * Set a namespace/prefix on an element if it is not set already. First
off, it
+ * searches for the element for the prefix associated with the specified
+ * namespace. If the prefix isn't null, then this is returned. Otherwise,
it
+ * creates a new attribute using the namespace/prefix passed as parameters.
+ *
+ * @param element
+ * @param namespace
+ * @param prefix
+ * @return the prefix associated with the set namespace
+ */
+ public static String setNamespace(Element element, String namespace,
+ String prefix) {
+ String pre = getPrefixRecursive(element, namespace);
+ if (pre != null) {
+ return pre;
+ }
+ element.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:" +
prefix, namespace);
+ return prefix;
+ }
+
+ /**
+ * Add a namespace prefix definition to an element.
+ * @param element
+ * @param namespaceUri
+ * @param prefix
+ */
+ public static void addNamespacePrefix(Element element, String
namespaceUri, String prefix) {
+ element.setAttributeNS(XMLConstants.XMLNS_ATTRIBUTE_NS_URI, "xmlns:" +
prefix, namespaceUri);
+ }
}
