Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.common / src / org / simantics / db / common / uri / URIToResource.java

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/URIToResource.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/URIToResource.java
new file mode 100644 (file)
index 0000000..d8e1539
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/uri/URIToResource.java
@@ -0,0 +1,104 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.db.common.uri;\r
+\r
+import java.util.Arrays;\r
+import java.util.Map;\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.Queries;\r
+import org.simantics.db.exception.ResourceNotFoundException;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.db.request.AsyncRead;\r
+\r
+/**\r
+ * TODO: should this be considered deprecated and favor {@link Queries#resource(String)} ?\r
+ */\r
+public class URIToResource implements AsyncRead<Resource> {\r
+       String[] nameSequence;\r
+       \r
+       public URIToResource(String[] nameSequence) {\r
+               this.nameSequence = nameSequence;\r
+       }\r
+       \r
+       public URIToResource(String uri) {\r
+               this.nameSequence = URIEscape.splitURI(uri);\r
+       }\r
+\r
+       @Override\r
+       public void perform(AsyncReadGraph g, final AsyncProcedure<Resource> procedure) {\r
+               if(nameSequence.length == 0)\r
+                       procedure.execute(g, g.getRootLibrary());\r
+               else\r
+                       g.asyncRequest(new URIToResource(Arrays.copyOf(nameSequence, nameSequence.length-1)),\r
+                               new AsyncProcedure<Resource>() {\r
+\r
+                                       @Override\r
+                                       public void execute(AsyncReadGraph g, Resource result) {\r
+                                               g.asyncRequest(new EscapedChildMapOfResource(result),\r
+                                                       new AsyncProcedure<Map<String, Resource>>() {\r
+\r
+                                                               @Override\r
+                                                               public void execute(AsyncReadGraph g, Map<String, Resource> map) {\r
+                                                                       Resource r = map.get(nameSequence[nameSequence.length-1]);\r
+                                                                       if(r != null)\r
+                                                                               procedure.execute(g, r);\r
+                                                                       else\r
+                                                                               procedure.exception(g, new ResourceNotFoundException(\r
+                                                                                               URIEscape.joinURI(nameSequence)));\r
+                                                               }\r
+                                                       \r
+                                                               @Override\r
+                                                               public void exception(AsyncReadGraph g, Throwable t) {\r
+                                                                       procedure.exception(g, t);                                                                                                                      \r
+                                                               }\r
+                                                       \r
+                                                       }\r
+                                               );\r
+                                       }\r
+                               \r
+                                       @Override\r
+                                       public void exception(AsyncReadGraph g, Throwable t) {\r
+                                               procedure.exception(g, t);                                              \r
+                                       }\r
+                               \r
+                               }\r
+                       );\r
+               \r
+       }\r
+       \r
+       @Override\r
+       public int hashCode() {\r
+               return Arrays.hashCode(nameSequence);\r
+       }\r
+\r
+    @Override\r
+    public int threadHash() {\r
+       return hashCode();\r
+    }\r
+\r
+       @Override\r
+       public boolean equals(Object obj) {\r
+               if(this == obj)\r
+                       return true;\r
+               if(!(obj instanceof URIToResource))\r
+                       return false;\r
+               return Arrays.equals(nameSequence, ((URIToResource)obj).nameSequence);\r
+       }\r
+    \r
+    @Override\r
+    public int getFlags() {\r
+        return 0;\r
+    }\r
+\r
+}\r