antville/helma
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removed memory leak where XmlUtil held strong static

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references on transactor threads.
This commit is contained in:
hns 2002-06-07 18:31:54 +00:00
parent 11ba081196
commit 61fd1966c1
1 changed files with 13 additions and 12 deletions
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25
src/helma/objectmodel/dom/XmlUtil.java
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@ -2,7 +2,7 @@ package helma.objectmodel.dom;
import java.io.InputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.WeakHashMap;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.DocumentBuilder;
@ -22,22 +22,23 @@ import helma.objectmodel.TransientNode;
public class XmlUtil {
private static final DocumentBuilderFactory domBuilderFactory = javax.xml.parsers.DocumentBuilderFactory.newInstance();
private static final HashMap domBuilders = new HashMap();
private static final WeakHashMap domBuilders = new WeakHashMap();
private static synchronized DocumentBuilder getDocumentBuilder() {
if ( domBuilders.containsKey (Thread.currentThread()) ) {
return (DocumentBuilder)domBuilders.get (Thread.currentThread());
} else {
try {
DocumentBuilder d = domBuilderFactory.newDocumentBuilder();
domBuilders.put (Thread.currentThread(),d);
return d;
} catch ( ParserConfigurationException e ) {
private static synchronized DocumentBuilder getDocumentBuilder() {
DocumentBuilder domBuilder = (DocumentBuilder) domBuilders.get (Thread.currentThread());
if (domBuilder != null) {
return domBuilder;
} else {
try {
domBuilder = domBuilderFactory.newDocumentBuilder();
domBuilders.put (Thread.currentThread(), domBuilder);
return domBuilder;
} catch ( ParserConfigurationException e ) {
throw new RuntimeException ("Cannot build parser: "+e.toString());
}
}
}
public static Document newDocument() {
DocumentBuilder d = getDocumentBuilder();
return d.newDocument();