X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=org.argeo.cms%2Fsrc%2Forg%2Fargeo%2Fcms%2Facr%2Ffs%2FFsContentProvider.java;h=65bdd343ef72b213289e982008f917940877c8c2;hb=c615307d7b87bcb260d8a9f402c6e0a880862f38;hp=99ed3a8ca61689c11d89f139aad9f2ad8984e5ff;hpb=da848d7b6bcf3e509890bdd42c3c59fba1adbe14;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms/src/org/argeo/cms/acr/fs/FsContentProvider.java b/org.argeo.cms/src/org/argeo/cms/acr/fs/FsContentProvider.java
index 99ed3a8ca..65bdd343e 100644
--- a/org.argeo.cms/src/org/argeo/cms/acr/fs/FsContentProvider.java
+++ b/org.argeo.cms/src/org/argeo/cms/acr/fs/FsContentProvider.java
@@ -1,25 +1,77 @@
 package org.argeo.cms.acr.fs;
 
 import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.nio.file.attribute.UserDefinedFileAttributeView;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.NavigableMap;
+import java.util.TreeMap;
+import java.util.stream.Collectors;
 
 import org.argeo.api.acr.Content;
 import org.argeo.api.acr.ContentResourceException;
+import org.argeo.api.acr.CrName;
+import org.argeo.api.acr.NamespaceUtils;
 import org.argeo.api.acr.spi.ContentProvider;
 import org.argeo.api.acr.spi.ProvidedSession;
 
+/** Access a file system as a {@link ContentProvider}. */
 public class FsContentProvider implements ContentProvider {
+	final static String XMLNS_ = "xmlns:";
+
 	private final Path rootPath;
+	private final boolean isRoot;
+
+	private NavigableMap<String, String> prefixes = new TreeMap<>();
 
-	public FsContentProvider(Path rootPath) {
-		super();
+	public FsContentProvider(Path rootPath, boolean isRoot) {
 		this.rootPath = rootPath;
+		this.isRoot = isRoot;
+		initNamespaces();
+	}
+
+	protected void initNamespaces() {
+		try {
+			UserDefinedFileAttributeView udfav = Files.getFileAttributeView(rootPath,
+					UserDefinedFileAttributeView.class);
+			for (String name : udfav.list()) {
+				if (name.startsWith(XMLNS_)) {
+					ByteBuffer buf = ByteBuffer.allocate(udfav.size(name));
+					udfav.read(name, buf);
+					buf.flip();
+					String namespace = StandardCharsets.UTF_8.decode(buf).toString();
+					String prefix = name.substring(XMLNS_.length());
+					prefixes.put(prefix, namespace);
+				}
+			}
+
+			// defaults
+			addDefaultNamespace(udfav, CrName.CR_DEFAULT_PREFIX, CrName.CR_NAMESPACE_URI);
+			addDefaultNamespace(udfav, "basic", CrName.CR_NAMESPACE_URI);
+			addDefaultNamespace(udfav, "owner", CrName.CR_NAMESPACE_URI);
+			addDefaultNamespace(udfav, "posix", CrName.CR_NAMESPACE_URI);
+		} catch (IOException e) {
+			throw new RuntimeException("Cannot read namespaces from " + rootPath, e);
+		}
+
+	}
+
+	protected void addDefaultNamespace(UserDefinedFileAttributeView udfav, String prefix, String namespace)
+			throws IOException {
+		if (!prefixes.containsKey(prefix)) {
+			ByteBuffer bb = ByteBuffer.wrap(namespace.getBytes(StandardCharsets.UTF_8));
+			int size = udfav.write(XMLNS_ + prefix, bb);
+			prefixes.put(prefix, namespace);
+		}
 	}
 
 	boolean isRoot(Path path) {
 		try {
-			return Files.isSameFile(rootPath, path);
+			return isRoot && Files.isSameFile(rootPath, path);
 		} catch (IOException e) {
 			throw new ContentResourceException(e);
 		}
@@ -29,4 +81,20 @@ public class FsContentProvider implements ContentProvider {
 	public Content get(ProvidedSession session, String mountPath, String relativePath) {
 		return new FsContent(session, this, rootPath.resolve(relativePath));
 	}
+
+	/*
+	 * NAMESPACE CONTEXT
+	 */
+
+	@Override
+	public String getNamespaceURI(String prefix) {
+		return NamespaceUtils.getNamespaceURI((p) -> prefixes.get(p), prefix);
+	}
+
+	@Override
+	public Iterator<String> getPrefixes(String namespaceURI) {
+		return NamespaceUtils.getPrefixes((ns) -> prefixes.entrySet().stream().filter(e -> e.getValue().equals(ns))
+				.map(Map.Entry::getKey).collect(Collectors.toUnmodifiableSet()), namespaceURI);
+	}
+
 }