Introduce directory content provider

[lgpl/argeo-commons.git] / org.argeo.api.acr / src / org / argeo / api / acr / NamespaceUtils.java

diff --git a/org.argeo.api.acr/src/org/argeo/api/acr/NamespaceUtils.java b/org.argeo.api.acr/src/org/argeo/api/acr/NamespaceUtils.java
index a1b4062aa3e4277e5b47606d81a2d992a1766b7f..9b5034b559c5692b3ec119f13e2b3ae5eed9c7ef 100644 (file)
--- a/org.argeo.api.acr/src/org/argeo/api/acr/NamespaceUtils.java
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/NamespaceUtils.java
@@ -1,6 +1,7 @@
 package org.argeo.api.acr;
 
 import java.util.Collections;
+import java.util.Comparator;
 import java.util.Iterator;
 import java.util.Objects;
 import java.util.Set;
@@ -39,6 +40,19 @@ public class NamespaceUtils {
                return prefix + ":" + name.getLocalPart();
        }
 
+       public final static Comparator<QName> QNAME_COMPARATOR = new Comparator<QName>() {
+       
+               @Override
+               public int compare(QName qn1, QName qn2) {
+                       if (Objects.equals(qn1.getNamespaceURI(), qn2.getNamespaceURI())) {// same namespace
+                               return qn1.getLocalPart().compareTo(qn2.getLocalPart());
+                       } else {
+                               return qn1.getNamespaceURI().compareTo(qn2.getNamespaceURI());
+                       }
+               }
+       
+       };
+
        /** singleton */
        private NamespaceUtils() {
        }