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package org.apache.myfaces.el; |
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import java.util.List; |
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import javax.el.ELContext; |
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import javax.el.ELException; |
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import javax.el.ELResolver; |
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import javax.faces.context.FacesContext; |
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import javax.faces.el.EvaluationException; |
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import javax.faces.el.PropertyNotFoundException; |
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import javax.faces.el.PropertyResolver; |
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@SuppressWarnings("deprecation") |
37 | 0 | public final class PropertyResolverImpl extends PropertyResolver |
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{ |
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@Override |
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public Object getValue(final Object base, final Object property) throws EvaluationException, |
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PropertyNotFoundException |
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{ |
46 | 0 | return invokeResolver(new ResolverInvoker<Object>(base, property) |
47 | 0 | { |
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public Object invoke(ELResolver resolver, ELContext context) |
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{ |
50 | 0 | return getELResolver().getValue(getELContext(), base, property); |
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} |
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}); |
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} |
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|
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@Override |
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public Object getValue(final Object base, final int index) throws EvaluationException, PropertyNotFoundException |
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{ |
58 | 0 | return getValue(base, Integer.valueOf(index)); |
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} |
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|
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@Override |
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public void setValue(final Object base, final Object property, final Object newValue) throws EvaluationException, |
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PropertyNotFoundException |
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{ |
65 | 0 | if (base == null || property == null) |
66 | 0 | throw new PropertyNotFoundException(); |
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|
68 | 0 | invokeResolver(new ResolverInvoker<Object>(base, property) |
69 | 0 | { |
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@Override |
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public Object invoke(ELResolver resolver, ELContext context) |
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{ |
73 | 0 | resolver.setValue(context, base, property, newValue); |
74 | 0 | return null; |
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} |
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|
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@Override |
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String getMessage() |
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{ |
80 | 0 | return super.getMessage() + " newValue: '" + newValue + "'"; |
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} |
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}); |
83 | 0 | } |
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|
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@Override |
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public void setValue(Object base, int index, Object newValue) throws EvaluationException, PropertyNotFoundException |
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{ |
88 | 0 | if (base == null) |
89 | 0 | throw new PropertyNotFoundException(); |
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|
91 | 0 | if (base instanceof Object[]) { |
92 | 0 | if (index < 0 || index>=((Object[])base).length) { |
93 | 0 | throw new PropertyNotFoundException(); |
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} |
95 | 0 | } else if (base instanceof List) { |
96 | 0 | if (index < 0 || index>=((List)base).size()) { |
97 | 0 | throw new PropertyNotFoundException(); |
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} |
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} |
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|
101 | 0 | setValue(base, Integer.valueOf(index), newValue); |
102 | 0 | } |
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@Override |
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public boolean isReadOnly(final Object base, final Object property) |
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{ |
107 | 0 | return invokeResolver(new ResolverInvoker<Boolean>(base, property) |
108 | 0 | { |
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public Boolean invoke(ELResolver resolver, ELContext context) |
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{ |
111 | 0 | return Boolean.valueOf(getELResolver().isReadOnly(getELContext(), base, property)); |
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} |
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}); |
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} |
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@Override |
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public boolean isReadOnly(final Object base, final int index) |
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{ |
119 | 0 | return isReadOnly(base, Integer.valueOf(index)); |
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} |
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@Override |
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public Class getType(final Object base, final Object property) |
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{ |
125 | 0 | if (base == null || property == null) |
126 | 0 | throw new PropertyNotFoundException(); |
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|
128 | 0 | return invokeResolver(new ResolverInvoker<Class>(base, property) |
129 | 0 | { |
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public Class invoke(final ELResolver resolver, final ELContext context) |
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{ |
132 | 0 | return resolver.getType(context, base, property); |
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} |
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}); |
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} |
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|
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@Override |
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public Class getType(Object base, int index) |
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{ |
140 | 0 | if (base == null) |
141 | 0 | throw new PropertyNotFoundException(); |
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|
143 | 0 | if (base instanceof Object[]) { |
144 | 0 | if (index < 0 || index>=((Object[])base).length) { |
145 | 0 | throw new PropertyNotFoundException(); |
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} |
147 | 0 | } else if (base instanceof List) { |
148 | 0 | if (index < 0 || index>=((List)base).size()) { |
149 | 0 | throw new PropertyNotFoundException(); |
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} |
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} |
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|
153 | 0 | return getType(base, Integer.valueOf(index)); |
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} |
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ELContext getELContext() |
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{ |
161 | 0 | return getFacesContext().getELContext(); |
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} |
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|
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ELResolver getELResolver() |
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{ |
166 | 0 | return getFacesContext().getApplication().getELResolver(); |
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} |
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FacesContext getFacesContext() |
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{ |
171 | 0 | return FacesContext.getCurrentInstance(); |
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} |
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|
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<T> T invokeResolver(ResolverInvoker<T> invoker) throws EvaluationException, PropertyNotFoundException |
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{ |
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try |
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{ |
178 | 0 | return invoker.invoke(getELResolver(), getELContext()); |
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} |
180 | 0 | catch (javax.el.PropertyNotFoundException e) |
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{ |
182 | 0 | throw new PropertyNotFoundException("property not found: " + invoker.getMessage() + ": " + e.getMessage(), |
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e); |
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} |
185 | 0 | catch (ELException e) |
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{ |
187 | 0 | throw new EvaluationException("exception: " + invoker.getMessage() + ": " + e.getMessage(), e); |
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} |
189 | 0 | catch (RuntimeException e) |
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{ |
191 | 0 | throw new RuntimeException("runtime exception: " + invoker.getMessage() + ": " + e.getMessage(), e); |
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} |
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} |
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|
195 | 0 | abstract static class ResolverInvoker<T> |
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{ |
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private final Object _base; |
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private final Object _property; |
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ResolverInvoker(final Object base, final Object property) |
201 | 0 | { |
202 | 0 | _base = base; |
203 | 0 | _property = property; |
204 | 0 | } |
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abstract T invoke(ELResolver resolver, ELContext context); |
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String getMessage() |
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{ |
210 | 0 | return "base: '" + _base + "' property/index: '" + _property + "'"; |
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} |
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} |
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} |