001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.mina.integration.ognl; 018 019import java.util.Map; 020import java.util.TreeMap; 021 022import ognl.OgnlContext; 023import ognl.OgnlException; 024import ognl.OgnlRuntime; 025import ognl.PropertyAccessor; 026 027import org.apache.mina.core.session.IoSession; 028 029/** 030 * An OGNL {@link PropertyAccessor} for {@link IoSession}. 031 * 032 * @author <a href="http://mina.apache.org">Apache MINA Project</a> 033 */ 034public class IoSessionPropertyAccessor extends AbstractPropertyAccessor { 035 036 @Override 037 protected Object getProperty0(OgnlContext context, Object target, String name) throws OgnlException { 038 if (target instanceof IoSession && "attributes".equals(name)) { 039 Map<String, Object> attributes = new TreeMap<String, Object>(); 040 IoSession s = (IoSession) target; 041 for (Object key : s.getAttributeKeys()) { 042 Object value = s.getAttribute(key); 043 if (value == null) { 044 continue; 045 } 046 attributes.put(String.valueOf(key), value); 047 } 048 return attributes; 049 } 050 051 return OgnlRuntime.NotFound; 052 } 053 054 @Override 055 protected boolean hasGetProperty0(OgnlContext context, Object target, String name) throws OgnlException { 056 return target instanceof IoSession && "attributes".equals(name); 057 } 058 059 @Override 060 protected boolean hasSetProperty0(OgnlContext context, Object target, String name) throws OgnlException { 061 return false; 062 } 063 064 @Override 065 protected Object setProperty0(OgnlContext context, Object target, String name, Object value) throws OgnlException { 066 return OgnlRuntime.NotFound; 067 } 068}