X-Git-Url: http://git.argeo.org/?a=blobdiff_plain;f=org.argeo.api.acr%2Fsrc%2Forg%2Fargeo%2Fapi%2Facr%2Fspi%2FContentProvider.java;h=56610ef4b097c917ceec3a155fc59e95b1f5893d;hb=ddfa9d4306fbd4fb680cf5d969fdfc32868d60f5;hp=9d2215f6579436e14f4d5dc3d9814d51419a5184;hpb=c615307d7b87bcb260d8a9f402c6e0a880862f38;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.api.acr/src/org/argeo/api/acr/spi/ContentProvider.java b/org.argeo.api.acr/src/org/argeo/api/acr/spi/ContentProvider.java
index 9d2215f65..56610ef4b 100644
--- a/org.argeo.api.acr/src/org/argeo/api/acr/spi/ContentProvider.java
+++ b/org.argeo.api.acr/src/org/argeo/api/acr/spi/ContentProvider.java
@@ -1,14 +1,54 @@
 package org.argeo.api.acr.spi;
 
 import java.util.Iterator;
+import java.util.Spliterator;
 
 import javax.xml.namespace.NamespaceContext;
 
 import org.argeo.api.acr.Content;
+import org.argeo.api.acr.ContentNotFoundException;
+import org.argeo.api.acr.search.BasicSearch;
 
+/**
+ * A prover of {@link Content}, which can be mounted in a
+ * {@link ProvidedRepository}.
+ */
 public interface ContentProvider extends NamespaceContext {
 
-	Content get(ProvidedSession session, String mountPath, String relativePath);
+	/**
+	 * Return the content at this path, relative to the mount path.
+	 * 
+	 * @return the content at this relative path, never <code>null</code>
+	 * @throws ContentNotFoundException if there is no content at this relative path
+	 */
+	ProvidedContent get(ProvidedSession session, String relativePath) throws ContentNotFoundException;
+
+	/**
+	 * Whether a content exist at his relative path. The default implementation call
+	 * {@link #get(ProvidedSession, String)} and check whether a
+	 * {@link ContentNotFoundException} is thrown or not. It should be overridden as
+	 * soon as there is a mechanism to check existence before actually getting the
+	 * content.
+	 */
+	default boolean exists(ProvidedSession session, String relativePath) {
+		try {
+			get(session, relativePath);
+			return true;
+		} catch (ContentNotFoundException e) {
+			return false;
+		}
+	}
+
+	/** The absolute path where this provider is mounted. */
+	String getMountPath();
+
+	/**
+	 * Search content within this provider. The default implementation throws an
+	 * {@link UnsupportedOperationException}.
+	 */
+	default Spliterator<Content> search(ProvidedSession session, BasicSearch search, String relPath) {
+		throw new UnsupportedOperationException();
+	}
 
 	/*
 	 * NAMESPACE CONTEXT
@@ -19,12 +59,4 @@ public interface ContentProvider extends NamespaceContext {
 		return prefixes.hasNext() ? prefixes.next() : null;
 	}
 
-//	default ContentName parsePrefixedName(String nameWithPrefix) {
-//		return NamespaceUtils.parsePrefixedName(this, nameWithPrefix);
-//	}
-//
-//	default String toPrefixedName(QName name) {
-//		return NamespaceUtils.toPrefixedName(this, name);
-//	}
-
 }