Introduce directory content provider

[lgpl/argeo-commons.git] / org.argeo.cms / src / org / argeo / cms / acr / AbstractContent.java

diff --git a/org.argeo.cms/src/org/argeo/cms/acr/AbstractContent.java b/org.argeo.cms/src/org/argeo/cms/acr/AbstractContent.java
index fa8062f7c12ea4fa7c596df69ffb89541112444d..18c6724ace740d6a5df99e5cf43e9126cd6c9eaf 100644 (file)
--- a/org.argeo.cms/src/org/argeo/cms/acr/AbstractContent.java
+++ b/org.argeo.cms/src/org/argeo/cms/acr/AbstractContent.java
@@ -15,16 +15,22 @@ import javax.xml.namespace.QName;
 import org.argeo.api.acr.Content;
 import org.argeo.api.acr.CrName;
 import org.argeo.api.acr.spi.ProvidedContent;
+import org.argeo.api.acr.spi.ProvidedSession;
 
 /** Partial reference implementation of a {@link ProvidedContent}. */
 public abstract class AbstractContent extends AbstractMap<QName, Object> implements ProvidedContent {
+       private final ProvidedSession session;
+
+       public AbstractContent(ProvidedSession session) {
+               this.session = session;
+       }
 
        /*
         * ATTRIBUTES OPERATIONS
         */
-       protected abstract Iterable<QName> keys();
-
-       protected abstract void removeAttr(QName key);
+//     protected abstract Iterable<QName> keys();
+//
+//     protected abstract void removeAttr(QName key);
 
        @Override
        public Set<Entry<QName, Object>> entrySet() {
@@ -106,12 +112,30 @@ public abstract class AbstractContent extends AbstractMap<QName, Object> impleme
                collectAncestors(ancestors, this);
                return ancestors.size();
        }
-       
+
        @Override
        public String getSessionLocalId() {
                return getPath();
        }
 
+       /*
+        * SESSION
+        */
+
+       @Override
+       public ProvidedSession getSession() {
+               return session;
+       }
+
+       /*
+        * TYPING
+        */
+
+       @Override
+       public List<QName> getTypes() {
+               return new ArrayList<>();
+       }
+
        /*
         * UTILITIES
         */
@@ -125,6 +149,40 @@ public abstract class AbstractContent extends AbstractMap<QName, Object> impleme
 //             return "content " + getPath();
 //     }
 
+       /*
+        * DEFAULTS
+        */
+       //      - no children
+       //      - no attributes
+       //      - cannot be modified
+       @Override
+       public Iterator<Content> iterator() {
+               return Collections.emptyIterator();
+       }
+
+       @Override
+       public Content add(QName name, QName... classes) {
+               throw new UnsupportedOperationException("Content cannot be added.");
+       }
+
+       @Override
+       public void remove() {
+               throw new UnsupportedOperationException("Content cannot be removed.");
+       }
+
+       protected Iterable<QName> keys() {
+               return Collections.emptySet();
+       }
+
+       @Override
+       public <A> Optional<A> get(QName key, Class<A> clss) {
+               return null;
+       }
+
+       protected void removeAttr(QName key) {
+               throw new UnsupportedOperationException("Attributes cannot be removed.");
+       }
+
        /*
         * SUB CLASSES
         */