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
new file mode 100644
index 000000000..e7008a701
--- /dev/null
+++ 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);
+  }
+
+}