[jboss-cvs] JBossAS SVN: r75876 - projects/vfs/trunk/src/test/java/org/jboss/test/virtual/support.

[jboss-cvs-commits at lists.jboss.org]

Author: alesj
Date: 2008-07-16 03:41:58 -0400 (Wed, 16 Jul 2008)
New Revision: 75876

Added:
   projects/vfs/trunk/src/test/java/org/jboss/test/virtual/support/InputStreamCallerChecker.java
Log:
InputStream util.

Added: projects/vfs/trunk/src/test/java/org/jboss/test/virtual/support/InputStreamCallerChecker.java
===================================================================
--- projects/vfs/trunk/src/test/java/org/jboss/test/virtual/support/InputStreamCallerChecker.java	                        (rev 0)
+++ projects/vfs/trunk/src/test/java/org/jboss/test/virtual/support/InputStreamCallerChecker.java	2008-07-16 07:41:58 UTC (rev 75876)
@@ -0,0 +1,124 @@
+/*
+* JBoss, Home of Professional Open Source
+* Copyright 2006, JBoss Inc., and individual contributors as indicated
+* by the @authors tag. See the copyright.txt 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.test.virtual.support;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.util.Collection;
+import java.util.Arrays;
+import java.util.Set;
+import java.util.HashSet;
+
+/**
+ * Track down callers.
+ * Checking if they close properly.
+ *
+ * @author <a href="mailto:ales.justin at jboss.com">Ales Justin</a>
+ */
+public class InputStreamCallerChecker extends InputStream
+{
+   private static final Collection<String> excluded = Arrays.asList(
+         "java.lang.Thread",
+         "org.jboss.virtual.InputStreamDelegate",
+         "org.jboss.virtual.VirtualFile",
+         "org.jboss.virtual.plugins.vfs.VirtualFileURLConnection",
+         "java.net.URL",
+         "org.jboss.deployers.vfs.spi.deployer.SecurityActions",
+         "org.jboss.deployers.vfs.spi.deployer.SecurityActions$FileActions$1",
+         "org.jboss.deployers.vfs.spi.deployer.SecurityActions$FileActions$2",
+         "org.jboss.deployers.vfs.spi.deployer.JBossXBDeployerHelper",
+         "org.jboss.deployers.vfs.spi.deployer.AbstractVFSParsingDeployer",
+         "org.jboss.classloading.spi.visitor.ResourceContext"
+   );
+   private static final Set<String> callers = new HashSet<String>();
+   private InputStream delegate;
+
+   public InputStreamCallerChecker(InputStream delegate)
+   {
+      if (delegate == null)
+         throw new IllegalArgumentException("Null delegate");
+      this.delegate = delegate;
+
+      Thread current = Thread.currentThread();
+      StackTraceElement[] stack = current.getStackTrace();
+      int i = 0;
+      StackTraceElement caller = stack[i];
+      while(excluded.contains(caller.getClassName()))
+      {
+         caller = stack[++i];
+      }
+      callers.add(caller.getClassName());
+      System.out.println("Callers = " + callers);
+   }
+
+   public int read() throws IOException
+   {
+      return delegate.read();
+   }
+
+   public int read(byte b[]) throws IOException
+   {
+      return delegate.read(b);
+   }
+
+   public int read(byte b[], int off, int len) throws IOException
+   {
+      return delegate.read(b, off, len);
+   }
+
+   public long skip(long n) throws IOException
+   {
+      return delegate.skip(n);
+   }
+
+   public int available() throws IOException
+   {
+      return delegate.available();
+   }
+
+   public void close() throws IOException
+   {
+      Thread current = Thread.currentThread();
+      StackTraceElement[] stack = current.getStackTrace();
+      // should be at index 3, 4th in line
+      StackTraceElement caller = stack[3];
+      String className = caller.getClassName();
+      System.out.println("closer = " + className);
+      callers.remove(className);
+      delegate.close();
+   }
+
+   public synchronized void mark(int readlimit)
+   {
+      delegate.mark(readlimit);
+   }
+
+   public synchronized void reset() throws IOException
+   {
+      delegate.reset();
+   }
+
+   public boolean markSupported()
+   {
+      return delegate.markSupported();
+   }
+}
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