diff options
Diffstat (limited to 'src/main/java/com/c2kernel')
| -rw-r--r-- | src/main/java/com/c2kernel/persistency/outcome/Outcome.java | 68 |
1 files changed, 58 insertions, 10 deletions
diff --git a/src/main/java/com/c2kernel/persistency/outcome/Outcome.java b/src/main/java/com/c2kernel/persistency/outcome/Outcome.java index 5604332..9ad84b2 100644 --- a/src/main/java/com/c2kernel/persistency/outcome/Outcome.java +++ b/src/main/java/com/c2kernel/persistency/outcome/Outcome.java @@ -20,6 +20,7 @@ import org.w3c.dom.ls.DOMImplementationLS; import org.w3c.dom.ls.LSSerializer;
import org.xml.sax.InputSource;
+import com.c2kernel.common.InvalidDataException;
import com.c2kernel.common.ObjectNotFoundException;
import com.c2kernel.common.PersistencyException;
import com.c2kernel.entity.C2KLocalObject;
@@ -73,7 +74,7 @@ public class Outcome implements C2KLocalObject { public Outcome(String path, String data) throws PersistencyException {
// derive all the meta data from the path
StringTokenizer tok = new StringTokenizer(path,"/");
- if (tok.countTokens() != 3 && !(tok.nextToken().equals("Outcome")))
+ if (tok.countTokens() != 3 && !(tok.nextToken().equals(ClusterStorage.OUTCOME)))
throw new PersistencyException("Outcome() - Outcome path must have three components: "+path, null);
mSchemaType = tok.nextToken();
String verstring = tok.nextToken();
@@ -123,9 +124,63 @@ public class Outcome implements C2KLocalObject { mData = null;
}
- public void setFieldByXPath(String xpath, String data) throws XPathExpressionException {
+ public String getFieldByXPath(String xpath) throws XPathExpressionException, InvalidDataException {
Node field = getNodeByXPath(xpath);
- field.setNodeValue(data);
+ if (field == null)
+ throw new InvalidDataException(xpath, "");
+
+ else if (field.getNodeType()==Node.TEXT_NODE || field.getNodeType()==Node.CDATA_SECTION_NODE)
+ return field.getNodeValue();
+
+ else if (field.getNodeType()==Node.ELEMENT_NODE) {
+ NodeList fieldChildren = field.getChildNodes();
+ if (fieldChildren.getLength() == 0)
+ throw new InvalidDataException("No child node for element", "");
+
+ else if (fieldChildren.getLength() == 1) {
+ Node child = fieldChildren.item(0);
+ if (child.getNodeType()==Node.TEXT_NODE || child.getNodeType()==Node.CDATA_SECTION_NODE)
+ return child.getNodeValue();
+ else
+ throw new InvalidDataException("Can't get data from child node of type "+child.getNodeName(), "");
+ }
+ else
+ throw new InvalidDataException("Element "+xpath+" has too many children", "");
+ }
+ else if (field.getNodeType()==Node.ATTRIBUTE_NODE)
+ return field.getNodeValue();
+ else
+ throw new InvalidDataException("Don't know what to do with node "+field.getNodeName(), "");
+ }
+
+ public void setFieldByXPath(String xpath, String data) throws XPathExpressionException, InvalidDataException {
+ Node field = getNodeByXPath(xpath);
+ if (field == null)
+ throw new InvalidDataException(xpath, "");
+
+ else if (field.getNodeType()==Node.ELEMENT_NODE) {
+ NodeList fieldChildren = field.getChildNodes();
+ if (fieldChildren.getLength() == 0) {
+ field.appendChild(dom.createTextNode(data));
+ }
+ else if (fieldChildren.getLength() == 1) {
+ Node child = fieldChildren.item(0);
+ switch (child.getNodeType()) {
+ case Node.TEXT_NODE:
+ case Node.CDATA_SECTION_NODE:
+ child.setNodeValue(data);
+ break;
+ default:
+ throw new InvalidDataException("Can't set child node of type "+child.getNodeName(), "");
+ }
+ }
+ else
+ throw new InvalidDataException("Element "+xpath+" has too many children", "");
+ }
+ else if (field.getNodeType()==Node.ATTRIBUTE_NODE)
+ field.setNodeValue(data);
+ else
+ throw new InvalidDataException("Don't know what to do with node "+field.getNodeName(), "");
}
@@ -188,13 +243,6 @@ public class Outcome implements C2KLocalObject { return null;
}
- public String getFieldByXPath(String xpathExpr) throws XPathExpressionException {
-
- XPathExpression expr = xpath.compile(xpathExpr);
- return (String)expr.evaluate(getDOM(), XPathConstants.STRING);
-
- }
-
public NodeList getNodesByXPath(String xpathExpr) throws XPathExpressionException {
XPathExpression expr = xpath.compile(xpathExpr);
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