[jboss-cvs] JBossAS SVN: r106074 - projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate.

jboss-cvs-commits at lists.jboss.org jboss-cvs-commits at lists.jboss.org
Tue Jun 15 16:50:48 EDT 2010


Author: alesj
Date: 2010-06-15 16:50:48 -0400 (Tue, 15 Jun 2010)
New Revision: 106074

Added:
   projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ResourceNamedInputStream.java
   projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/VirtualFileNamedInputStream.java
Modified:
   projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java
   projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/PatternVisitor.java
   projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ScannerImpl.java
Log:
Make I/O lazy.

Modified: projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java
===================================================================
--- projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java	2010-06-15 20:28:02 UTC (rev 106073)
+++ projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java	2010-06-15 20:50:48 UTC (rev 106074)
@@ -25,8 +25,6 @@
 import java.io.IOException;
 import java.io.InputStream;
 
-import org.jboss.classloading.spi.visitor.ResourceContext;
-
 import org.hibernate.ejb.packaging.NamedInputStream;
 
 /**
@@ -34,28 +32,38 @@
  *
  * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
  */
-public class LazyNamedInputStream extends NamedInputStream
+public abstract class LazyNamedInputStream extends NamedInputStream
 {
-   private ResourceContext resource;
-
-   public LazyNamedInputStream(ResourceContext resource)
+   public LazyNamedInputStream(String name)
    {
-      // null check is already done in getName
-      super(PatternFilter.getName(resource), null);
-      this.resource = resource;
+      super(name, null);
    }
 
+   /**
+    * Get lazy input stream.
+    *
+    * @return the input stream
+    * @throws IOException for any I/O error
+    */
+   protected abstract InputStream getLazyStream() throws IOException;
+
    @Override
    public InputStream getStream()
    {
-      try
+      InputStream is = super.getStream();
+      if (is == null)
       {
-         return resource.getInputStream();
+         try
+         {
+            is = getLazyStream();
+         }
+         catch (IOException e)
+         {
+            throw new RuntimeException(e);
+         }
+         super.setStream(is);
       }
-      catch (IOException e)
-      {
-         throw new RuntimeException(e);
-      }
+      return is;
    }
 
    @Override

Modified: projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/PatternVisitor.java
===================================================================
--- projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/PatternVisitor.java	2010-06-15 20:28:02 UTC (rev 106073)
+++ projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/PatternVisitor.java	2010-06-15 20:50:48 UTC (rev 106074)
@@ -59,6 +59,6 @@
    public void visit(ResourceContext resource)
    {
       URL ownerURL = scanner.getOwnerURL(resource);
-      scanner.addFile(ownerURL, pattern, new LazyNamedInputStream(resource));
+      scanner.addFile(ownerURL, pattern, new ResourceNamedInputStream(resource));
    }
 }
\ No newline at end of file

Copied: projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ResourceNamedInputStream.java (from rev 106056, projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java)
===================================================================
--- projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ResourceNamedInputStream.java	                        (rev 0)
+++ projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ResourceNamedInputStream.java	2010-06-15 20:50:48 UTC (rev 106074)
@@ -0,0 +1,50 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2010, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+
+package org.jboss.scanning.hibernate;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.jboss.classloading.spi.visitor.ResourceContext;
+
+/**
+ * Resource context named input stream.
+ *
+ * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
+ */
+public class ResourceNamedInputStream extends LazyNamedInputStream
+{
+   private ResourceContext resource;
+
+   public ResourceNamedInputStream(ResourceContext resource)
+   {
+      // null check is already done in getName
+      super(PatternFilter.getName(resource));
+      this.resource = resource;
+   }
+
+   protected InputStream getLazyStream() throws IOException
+   {
+      return resource.getInputStream();
+   }
+}
\ No newline at end of file

Modified: projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ScannerImpl.java
===================================================================
--- projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ScannerImpl.java	2010-06-15 20:28:02 UTC (rev 106073)
+++ projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/ScannerImpl.java	2010-06-15 20:50:48 UTC (rev 106074)
@@ -411,20 +411,13 @@
 
    private Set<NamedInputStream> toNIS(Iterable<VirtualFile> files)
    {
-      try
+      Set<NamedInputStream> result = new HashSet<NamedInputStream>();
+      for (VirtualFile file : files)
       {
-         Set<NamedInputStream> result = new HashSet<NamedInputStream>();
-         for (VirtualFile file : files)
-         {
-            NamedInputStream nis = new NamedInputStream(file.getName(), file.openStream());
-            result.add(nis);
-         }
-         return result;
+         NamedInputStream nis = new VirtualFileNamedInputStream(file);
+         result.add(nis);
       }
-      catch (IOException e)
-      {
-         throw new RuntimeException(e);
-      }
+      return result;
    }
 
    // For back compatible Hibernate versions

Copied: projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/VirtualFileNamedInputStream.java (from rev 106056, projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/LazyNamedInputStream.java)
===================================================================
--- projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/VirtualFileNamedInputStream.java	                        (rev 0)
+++ projects/scanning/trunk/plugins/src/main/java/org/jboss/scanning/hibernate/VirtualFileNamedInputStream.java	2010-06-15 20:50:48 UTC (rev 106074)
@@ -0,0 +1,56 @@
+/*
+ * JBoss, Home of Professional Open Source.
+ * Copyright 2010, Red Hat Middleware LLC, and individual contributors
+ * as indicated by the @author tags. See the copyright.txt file in the
+ * distribution for a full listing of individual contributors.
+ *
+ * This is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this software; if not, write to the Free
+ * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+ */
+
+package org.jboss.scanning.hibernate;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.jboss.vfs.VirtualFile;
+
+/**
+ * VFS named input stream.
+ *
+ * @author <a href="mailto:ales.justin at jboss.org">Ales Justin</a>
+ */
+public class VirtualFileNamedInputStream extends LazyNamedInputStream
+{
+   private VirtualFile file;
+
+   private static String name(VirtualFile file)
+   {
+      if (file == null)
+         throw new IllegalArgumentException("Null file");
+      return file.getName();
+   }
+
+   public VirtualFileNamedInputStream(VirtualFile file)
+   {
+      super(name(file));
+      this.file = file;
+   }
+
+   protected InputStream getLazyStream() throws IOException
+   {
+      return file.openStream();
+   }
+}
\ No newline at end of file



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