Importing upstream Jetty jetty-9.2.1.v20140609

[gigi.git] / lib / jetty / org / eclipse / jetty / server / session / MemSession.java

diff --git a/lib/jetty/org/eclipse/jetty/server/session/MemSession.java b/lib/jetty/org/eclipse/jetty/server/session/MemSession.java
new file mode 100644 (file)
index 0000000..72dbea8
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+++ b/lib/jetty/org/eclipse/jetty/server/session/MemSession.java
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+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.server.session;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.servlet.http.HttpServletRequest;
+
+
+/**
+ * MemSession
+ *
+ * A session whose data is kept in memory
+ */
+public class MemSession extends AbstractSession
+{
+
+    private final Map<String,Object> _attributes=new HashMap<String, Object>();
+
+    protected MemSession(AbstractSessionManager abstractSessionManager, HttpServletRequest request)
+    {
+        super(abstractSessionManager, request);
+    }
+
+    public MemSession(AbstractSessionManager abstractSessionManager, long created, long accessed, String clusterId)
+    {
+        super(abstractSessionManager, created, accessed, clusterId);
+    }
+    
+    
+    /* ------------------------------------------------------------- */
+    @Override
+    public Map<String,Object> getAttributeMap()
+    {
+        return _attributes;
+    }
+   
+
+    /* ------------------------------------------------------------ */
+    @Override
+    public int getAttributes()
+    {
+        synchronized (this)
+        {
+            checkValid();
+            return _attributes.size();
+        }
+    }
+
+    /* ------------------------------------------------------------ */
+    @SuppressWarnings({ "unchecked" })
+    @Override
+    public Enumeration<String> doGetAttributeNames()
+    {
+        List<String> names=_attributes==null?Collections.EMPTY_LIST:new ArrayList<String>(_attributes.keySet());
+        return Collections.enumeration(names);
+    }
+
+    
+    /* ------------------------------------------------------------ */
+    @Override
+    public Set<String> getNames()
+    {
+        synchronized (this)
+        {
+            return new HashSet<String>(_attributes.keySet());
+        }
+    }
+   
+    
+    /* ------------------------------------------------------------- */
+    @Override
+    public void clearAttributes()
+    {
+        while (_attributes!=null && _attributes.size()>0)
+        {
+            ArrayList<String> keys;
+            synchronized(this)
+            {
+                keys=new ArrayList<String>(_attributes.keySet());
+            }
+
+            Iterator<String> iter=keys.iterator();
+            while (iter.hasNext())
+            {
+                String key=(String)iter.next();
+
+                Object value;
+                synchronized(this)
+                {
+                    value=doPutOrRemove(key,null);
+                }
+                unbindValue(key,value);
+
+                ((AbstractSessionManager)getSessionManager()).doSessionAttributeListeners(this,key,value,null);
+            }
+        }
+        if (_attributes!=null)
+            _attributes.clear();
+    }
+
+    /* ------------------------------------------------------------ */
+    public void addAttributes(Map<String,Object> map)
+    {
+        _attributes.putAll(map);
+    }
+    
+    /* ------------------------------------------------------------ */
+    @Override
+    public Object doPutOrRemove(String name, Object value)
+    {
+        return value==null?_attributes.remove(name):_attributes.put(name,value);
+    }
+
+    /* ------------------------------------------------------------ */
+    @Override
+    public Object doGet(String name)
+    {
+        return _attributes.get(name);
+    }
+    
+}