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Diffstat (limited to 'common/src/at/gv/egovernment/moa/util/EntityResolverChain.java')
-rw-r--r--common/src/at/gv/egovernment/moa/util/EntityResolverChain.java52
1 files changed, 52 insertions, 0 deletions
diff --git a/common/src/at/gv/egovernment/moa/util/EntityResolverChain.java b/common/src/at/gv/egovernment/moa/util/EntityResolverChain.java
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index 000000000..e7008a701
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+++ b/common/src/at/gv/egovernment/moa/util/EntityResolverChain.java
@@ -0,0 +1,52 @@
+package at.gv.egovernment.moa.util;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+
+import org.xml.sax.EntityResolver;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/**
+ * Implementation of the <code>org.xml.sax.EntityResolver</code>,
+ * for use by a <code>org.apache.xerces.parsers.DOMParser</code>.
+ *
+ * @author Patrick Peck
+ * @version $Id$
+ */
+public class EntityResolverChain implements EntityResolver {
+ /** The <code>EntityResolver</code>s in the chain. */
+ private List resolvers = new ArrayList();
+
+ /**
+ * @see org.xml.sax.EntityResolver#resolveEntity(java.lang.String, java.lang.String)
+ */
+ public InputSource resolveEntity(String publicId, String systemId)
+ throws SAXException, IOException {
+
+ Iterator iter;
+
+ for (iter = resolvers.iterator(); iter.hasNext(); ) {
+ EntityResolver resolver = (EntityResolver) iter.next();
+ InputSource is = resolver.resolveEntity(publicId, systemId);
+
+ if (is != null) {
+ return is;
+ }
+ }
+
+ return null;
+ }
+
+ /**
+ * Add an <code>EntityResolver</code> to the chain.
+ *
+ * @param entityResolver The <code>EntityResolver</code> to add.
+ */
+ public void addEntityResolver(EntityResolver entityResolver) {
+ resolvers.add(entityResolver);
+ }
+
+}