More efficient DOM handling, getField() utility method for scripts

1 files changed, 16 insertions, 1 deletions

diff --git a/source/com/c2kernel/persistency/outcome/Outcome.java b/source/com/c2kernel/persistency/outcome/Outcome.java
index a5ecb29..d321f69 100644
--- a/source/com/c2kernel/persistency/outcome/Outcome.java
+++ b/source/com/c2kernel/persistency/outcome/Outcome.java
@@ -11,6 +11,8 @@ import org.apache.xml.serialize.Method;
 import org.apache.xml.serialize.OutputFormat;

 import org.apache.xml.serialize.XMLSerializer;

 import org.w3c.dom.Document;

+import org.w3c.dom.NodeList;

+import org.w3c.dom.Text;

 import org.xml.sax.InputSource;

 

 import com.c2kernel.common.PersistencyException;

@@ -23,6 +25,7 @@ public class Outcome implements C2KLocalObject {
     String mData;

     String mSchemaType;

     int mSchemaVersion;

+    Document dom;

     static DocumentBuilder parser;

 

     static {

@@ -89,10 +92,12 @@ public class Outcome implements C2KLocalObject {
 

     public void setData(String data) {

         mData = data;

+        dom = null;

     }

 

     public void setData(Document data) {

         mData = serialize(data, false);

+        dom = data;

     }

 

     public String getData() {

@@ -131,14 +136,24 @@ public class Outcome implements C2KLocalObject {
      * @return a DOM Document

      */

     public Document getDOM() {

+    	if (dom == null)

         try {

             synchronized (parser) {

-                return parser.parse(new InputSource(new StringReader(mData)));

+                dom = parser.parse(new InputSource(new StringReader(mData)));

             }

         } catch (Exception e) {

             Logger.error(e);

             return null;

         }

+    	return dom;

+    }

+    

+    public String getField(String name) {

+    	 NodeList elements = getDOM().getDocumentElement().getElementsByTagName(name);

+    	 if (elements.getLength() == 1 && elements.item(0).hasChildNodes() && elements.item(0).getFirstChild() instanceof Text)

+    		 return ((Text)elements.item(0).getFirstChild()).getData();

+    	 else

+    		 return null;

     }

 

     static public String serialize(Document doc, boolean prettyPrint)