X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.api.acr%2Fsrc%2Forg%2Fargeo%2Fapi%2Facr%2FContent.java;h=4aac92de75b2317f78b83bea56329535c630ff81;hb=c0342975a37c70895c2e8f6b341d790700168d7f;hp=aeea27ef23ff272b2bb0fb0bf4a95c8c65336e1b;hpb=750a3e154c078d6e9fd72d8da950cb325b8ab012;p=lgpl%2Fargeo-commons.git

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 aeea27ef2..4aac92de7 100644
--- a/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/Content.java
@@ -2,9 +2,11 @@ package org.argeo.api.acr;
 
 import java.io.Closeable;
 import java.io.IOException;
+import java.util.Collection;
 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 +52,7 @@ 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 +73,13 @@ 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) {
@@ -80,23 +90,92 @@ public interface Content extends Iterable<Content>, Map<QName, Object> {
 
 	void remove();
 
+	/*
+	 * TYPING
+	 */
+	List<QName> getContentClasses();
+
+	/** AND */
+	default boolean isContentClass(QName... contentClass) {
+		List<QName> contentClasses = getContentClasses();
+		for (QName cClass : contentClass) {
+			if (!contentClasses.contains(cClass))
+				return false;
+		}
+		return true;
+	}
+
+	/** OR */
+	default boolean hasContentClass(QName... contentClass) {
+		List<QName> contentClasses = getContentClasses();
+		for (QName cClass : contentClass) {
+			if (contentClasses.contains(cClass))
+				return true;
+		}
+		return false;
+	}
+
 	/*
 	 * DEFAULT METHODS
 	 */
-	default <A> A adapt(Class<A> clss) throws IllegalArgumentException {
-		throw new IllegalArgumentException("Cannot adapt content " + this + " to " + clss.getName());
+	default <A> A adapt(Class<A> clss) {
+		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());
+	}
+
+	/*
+	 * CHILDREN
+	 */
+
+	default boolean hasChild(QName name) {
+		for (Content child : this) {
+			if (child.getName().equals(name))
+				return true;
+		}
+		return false;
+	}
+
+	default Content anyOrAddChild(QName name, QName... classes) {
+		Content child = anyChild(name);
+		if (child != null)
+			return child;
+		return this.add(name, classes);
+	}
+
+	/** Any child with this name, or null if there is none */
+	default Content anyChild(QName name) {
+		for (Content child : this) {
+			if (child.getName().equals(name))
+				return child;
+		}
+		return null;
 	}
 
 	/*
 	 * CONVENIENCE METHODS
 	 */
-//	default String attr(String key) {
-//		return get(key, String.class);
-//	}
+	default String attr(String key) {
+		Object obj = get(key);
+		if (obj == null)
+			return null;
+		return obj.toString();
+
+	}
+
+	default String attr(QName key) {
+		Object obj = get(key);
+		if (obj == null)
+			return null;
+		return obj.toString();
+
+	}
 //
 //	default String attr(Object key) {
 //		return key != null ? attr(key.toString()) : attr(null);