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author | gregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d> | 2003-12-01 09:29:01 +0000 |
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committer | gregor <gregor@d688527b-c9ab-4aba-bd8d-4036d912da1d> | 2003-12-01 09:29:01 +0000 |
commit | 1bfa47c942022dbf4b294cdd494b728deb84298b (patch) | |
tree | 0cbd96b0997f1c3ddbd0fe5b8ab6305a58a2281d /spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java | |
parent | 75181af53bbe97bee472e5e8923c54bbd06ac32b (diff) | |
download | moa-id-spss-1bfa47c942022dbf4b294cdd494b728deb84298b.tar.gz moa-id-spss-1bfa47c942022dbf4b294cdd494b728deb84298b.tar.bz2 moa-id-spss-1bfa47c942022dbf4b294cdd494b728deb84298b.zip |
Zwischenstand
git-svn-id: https://joinup.ec.europa.eu/svn/moa-idspss/trunk@65 d688527b-c9ab-4aba-bd8d-4036d912da1d
Diffstat (limited to 'spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java')
-rw-r--r-- | spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java b/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java new file mode 100644 index 000000000..8bc23efa9 --- /dev/null +++ b/spss.slinterface/WEB-INF/src/at/gv/egovernment/moa/spss/slinterface/DOMUtils.java @@ -0,0 +1,126 @@ +/* + * Created on 28.11.2003 + * + * (c) Stabsstelle IKT-Strategie des Bundes + */ +package at.gv.egovernment.moa.spss.slinterface; + +import java.util.ArrayList; +import java.util.List; + +import org.w3c.dom.Element; +import org.w3c.dom.Node; +import org.w3c.dom.NodeList; + +/** + * @author Gregor Karlinger (mailto:gregor.karlinger@cio.gv.at) + */ +public class DOMUtils +{ + /* ---------------------------------------------------------------------------------------------------- */ + + /** + * Gets the first text node of the specified element. + * + * @param elem The element. + * + * @return the first text node of the specified element, or <code>null</code> if <code>element</code> + * equals <code>null</code>, or if the element has no text node. + */ + public static String getText(Element elem) + { + if (elem == null) return null; + NodeList childNodes = elem.getChildNodes(); + for (int i = 0; i < childNodes.getLength(); i++) + { + Node currNode = childNodes.item(i); + if (currNode.getNodeType() == Node.TEXT_NODE) return currNode.getNodeValue(); + } + return null; + } + + /* ---------------------------------------------------------------------------------------------------- */ + + /** + * Gets the first text node of the specified child element from the specified parent element. + * + * @param parent The parent. + * + * @param childNS The namespace of the child element. + * + * @param childLocName The local name of the child element. + * + * @return the first text node of the specified child, or <code>null</code> if <code>parent</code> equals + * <code>null</code> or has no child element with the specified namespace and local name, or if + * the child element has no text node. + */ + public static String getChildText(Element parent, String childNS, String childLocName) + { + if (parent == null) return null; + Element child = getChildElem(parent, childNS, childLocName); + if (child == null) return null; + return getText(child); + } + + /* ---------------------------------------------------------------------------------------------------- */ + + /** + * Gets the first child element of the specified parent with the specified namspace and local name. + * + * @param parent The parent. + * + * @param childNS The namespace of the child element to be searched for. + * + * @param childLocName The local name of the child element to be searched for. + * + * @return the first child element as described above, or <code>null</code> if <code>parent</code> is + * null or has no child elements with for the specified namespace and local name. + */ + public static Element getChildElem(Element parent, String childNS, String childLocName) + { + List childElems = getChildElems(parent, childNS, childLocName, true); + return (childElems == null) ? null : (Element) childElems.get(0); + } + + /* ---------------------------------------------------------------------------------------------------- */ + + /** + * Gets all or the first child element(s) of the specified parent with the specified namspace and local + * name. + * + * @param parent The parent. + * + * @param childNS The namespace of the child elements to be searched for. + * + * @param childLocName The local name of the child elements to be searched for. + * + * @param firstOnly Specifies wheter only the first or all child elements with the specified namespace and + * local name should be returned. + * + * @return a <code>java.util.List</code> with objects of type <code>org.w3c.dom.Element</code>; each + * element in the list represents a child element as specified above. If <code>parent</code> + * equals <code>null</code>, or if there are no child elements as specified above, <code>null + * </code> will be returned. + */ + public static List getChildElems(Element parent, String childNS, String childLocName, boolean firstOnly) + { + if (parent == null) return null; + + ArrayList childElems = new ArrayList(); + NodeList childNodes = parent.getChildNodes(); + for (int i = 0; i < childNodes.getLength(); i++) + { + Node currNode = childNodes.item(i); + if (currNode.getNodeType() == Node.ELEMENT_NODE) + { + Element currElem = (Element) currNode; + if (childNS.equals(currElem.getNamespaceURI()) && childLocName.equals(currElem.getLocalName())) + { + childElems.add(currElem); + if (firstOnly) break; + } + } + } + return (childElems.size() == 0) ? null : childElems; + } +} |