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package org.apache.tapestry.listener; |
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import java.util.Map; |
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import ognl.ObjectPropertyAccessor; |
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import ognl.OgnlContext; |
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import ognl.OgnlException; |
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import ognl.OgnlRuntime; |
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import ognl.PropertyAccessor; |
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import ognl.enhance.ExpressionCompiler; |
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import ognl.enhance.UnsupportedCompilationException; |
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36 | 0 | public class ListenerMapPropertyAccessor extends ObjectPropertyAccessor implements PropertyAccessor |
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{ |
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public Object getProperty(Map context, Object target, Object name) |
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throws OgnlException |
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{ |
48 | 0 | ListenerMap map = (ListenerMap) target; |
49 | 0 | String listenerName = (String) name; |
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51 | 0 | if (map.canProvideListener(listenerName)) |
52 | 0 | return map.getListener(listenerName); |
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54 | 0 | return super.getProperty(context, target, name); |
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} |
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public boolean hasGetProperty(Map context, Object target, Object oname) |
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throws OgnlException |
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{ |
65 | 0 | ListenerMap map = (ListenerMap) target; |
66 | 0 | String listenerName = (String) oname; |
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68 | 0 | if (map.canProvideListener(listenerName)) return true; |
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70 | 0 | return super.hasGetProperty(context, target, oname); |
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} |
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public Class getPropertyClass(OgnlContext context, Object target, Object name) |
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{ |
75 | 0 | ListenerMap map = (ListenerMap) target; |
76 | 0 | String listenerName = (String) name; |
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78 | 0 | if (map.canProvideListener(listenerName)) |
79 | 0 | return map.getListener(listenerName).getClass(); |
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81 | 0 | return super.getPropertyClass(context, target, name); |
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} |
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public String getSourceAccessor(OgnlContext context, Object target, Object name) |
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{ |
86 | 0 | ListenerMap map = (ListenerMap) target; |
87 | 0 | String listenerName = ((String)name).replaceAll("\"", ""); |
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89 | 0 | if (map.canProvideListener(listenerName)) { |
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91 | 0 | Class type = OgnlRuntime.getCompiler().getInterfaceClass(map.getListener(listenerName).getClass()); |
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93 | 0 | ExpressionCompiler.addCastString(context, "((" + type.getName() + ")"); |
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95 | 0 | context.setCurrentAccessor(ListenerMap.class); |
96 | 0 | context.setCurrentType(type); |
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98 | 0 | return ".getListener(" + name + "))"; |
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} |
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101 | 0 | return super.getSourceAccessor(context, target, name); |
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} |
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public String getSourceSetter(OgnlContext context, Object target, Object name) |
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{ |
106 | 0 | throw new UnsupportedCompilationException("Can't set listeners on ListenerMap."); |
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} |
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} |