Start supporting mounting of XML with FS.

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

diff --git a/org.argeo.api.acr/src/org/argeo/api/acr/Content.java b/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
index aeea27ef23ff272b2bb0fb0bf4a95c8c65336e1b..c2202b0fa31e14ad7db87a0f104390beaa792a7f 100644 (file)
--- a/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
@@ -5,6 +5,7 @@ import java.io.IOException;
 import java.util.List;
 import java.util.Map;
 import java.util.Optional;
+import java.util.concurrent.CompletableFuture;
 
 import javax.xml.XMLConstants;
 import javax.xml.namespace.QName;
@@ -50,6 +51,7 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
 
        <A> Optional<List<A>> getMultiple(QName key, Class<A> clss);
 
+       @SuppressWarnings("unchecked")
        default <A> List<A> getMultiple(QName key) {
                Class<A> type;
                try {
@@ -70,6 +72,13 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
        /*
         * CONTENT OPERATIONS
         */
+//     default CompletionStage<Content> edit(Consumer<Content> work) {
+//             return CompletableFuture.supplyAsync(() -> {
+//                     work.accept(this);
+//                     return this;
+//             }).minimalCompletionStage();
+//     }
+
        Content add(QName name, QName... classes);
 
        default Content add(String name, QName... classes) {
@@ -84,11 +93,15 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
         * DEFAULT METHODS
         */
        default <A> A adapt(Class<A> clss) throws IllegalArgumentException {
-               throw new IllegalArgumentException("Cannot adapt content " + this + " to " + clss.getName());
+               throw new UnsupportedOperationException("Cannot adapt content " + this + " to " + clss.getName());
+       }
+
+       default <C extends Closeable> C open(Class<C> clss) throws IOException {
+               throw new UnsupportedOperationException("Cannot open content " + this + " as " + clss.getName());
        }
 
-       default <C extends Closeable> C open(Class<C> clss) throws IOException, IllegalArgumentException {
-               throw new IllegalArgumentException("Cannot open content " + this + " as " + clss.getName());
+       default <A> CompletableFuture<A> write(Class<A> clss) {
+               throw new UnsupportedOperationException("Cannot write content " + this + " as " + clss.getName());
        }
 
        /*