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package org.apache.commons.ognl; |
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import java.lang.reflect.Array; |
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import java.util.Map; |
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31 | 1 | public class ArrayPropertyAccessor |
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extends ObjectPropertyAccessor |
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implements PropertyAccessor |
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{ |
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|
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@Override |
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public Object getProperty( Map<String, Object> context, Object target, Object name ) |
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throws OgnlException |
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{ |
40 | 58 | Object result = null; |
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|
42 | 58 | if ( name instanceof String ) |
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{ |
44 | 22 | if ( "length".equals( name ) ) |
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{ |
46 | 21 | result = Array.getLength( target ); |
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} |
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else |
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{ |
50 | 1 | result = super.getProperty( context, target, name ); |
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} |
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} |
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else |
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{ |
55 | 36 | Object index = name; |
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|
57 | 36 | if ( index instanceof DynamicSubscript ) |
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{ |
59 | 3 | int len = Array.getLength( target ); |
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|
61 | 3 | switch ( ( (DynamicSubscript) index ).getFlag() ) |
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{ |
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case DynamicSubscript.ALL: |
64 | 1 | result = Array.newInstance( target.getClass().getComponentType(), len ); |
65 | 1 | System.arraycopy( target, 0, result, 0, len ); |
66 | 1 | break; |
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case DynamicSubscript.FIRST: |
68 | 0 | index = ( len > 0 ) ? 0 : -1; |
69 | 0 | break; |
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case DynamicSubscript.MID: |
71 | 0 | index = ( len > 0 ) ? ( len / 2 ) : -1; |
72 | 0 | break; |
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case DynamicSubscript.LAST: |
74 | 2 | index = ( len > 0 ) ? ( len - 1 ) : -1; |
75 | 2 | break; |
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default: break; |
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} |
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} |
79 | 36 | if ( result == null ) |
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{ |
81 | 35 | if ( index instanceof Number ) |
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{ |
83 | 34 | int i = ( (Number) index ).intValue(); |
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|
85 | 34 | result = ( i >= 0 ) ? Array.get( target, i ) : null; |
86 | 34 | } |
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else |
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{ |
89 | 1 | throw new NoSuchPropertyException( target, index ); |
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} |
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} |
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} |
93 | 56 | return result; |
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} |
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|
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@Override |
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public void setProperty( Map<String, Object> context, Object target, Object name, Object value ) |
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throws OgnlException |
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{ |
100 | 0 | boolean isNumber = ( name instanceof Number ); |
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|
102 | 0 | if ( isNumber || ( name instanceof DynamicSubscript ) ) |
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{ |
104 | 0 | TypeConverter converter = ( (OgnlContext) context ).getTypeConverter(); |
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Object convertedValue; |
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|
107 | 0 | convertedValue = converter.convertValue( context, target, null, name.toString(), value, |
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target.getClass().getComponentType() ); |
109 | 0 | if ( isNumber ) |
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{ |
111 | 0 | int i = ( (Number) name ).intValue(); |
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|
113 | 0 | if ( i >= 0 ) |
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{ |
115 | 0 | Array.set( target, i, convertedValue ); |
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} |
117 | 0 | } |
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else |
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{ |
120 | 0 | int len = Array.getLength( target ); |
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|
122 | 0 | switch ( ( (DynamicSubscript) name ).getFlag() ) |
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{ |
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case DynamicSubscript.ALL: |
125 | 0 | System.arraycopy( target, 0, convertedValue, 0, len ); |
126 | 0 | return; |
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default: |
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break; |
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} |
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} |
131 | 0 | } |
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else |
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{ |
134 | 0 | if ( name instanceof String ) |
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{ |
136 | 0 | super.setProperty( context, target, name, value ); |
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} |
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else |
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{ |
140 | 0 | throw new NoSuchPropertyException( target, name ); |
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} |
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} |
143 | 0 | } |
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|
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@Override |
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public String getSourceAccessor( OgnlContext context, Object target, Object index ) |
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{ |
148 | 19 | String indexStr = getIndexString( context, index ); |
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|
150 | 19 | context.setCurrentAccessor( target.getClass() ); |
151 | 19 | context.setCurrentType( target.getClass().getComponentType() ); |
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|
153 | 19 | return "[" + indexStr + "]"; |
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} |
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@Override |
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public String getSourceSetter( OgnlContext context, Object target, Object index ) |
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{ |
159 | 12 | String indexStr = getIndexString( context, index ); |
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|
161 | 12 | Class<?> type = target.getClass().isArray() ? target.getClass().getComponentType() : target.getClass(); |
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|
163 | 12 | context.setCurrentAccessor( target.getClass() ); |
164 | 12 | context.setCurrentType( target.getClass().getComponentType() ); |
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|
166 | 12 | if ( type.isPrimitive() ) |
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{ |
168 | 10 | Class<?> wrapClass = OgnlRuntime.getPrimitiveWrapperClass( type ); |
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|
170 | 10 | return "[" + indexStr + "]=((" + wrapClass.getName() + ")org.apache.commons.ognl.OgnlOps.convertValue($3," |
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+ wrapClass.getName() + ".class, true))." + OgnlRuntime.getNumericValueGetter( wrapClass ); |
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} |
173 | 2 | return "[" + indexStr + "]=org.apache.commons.ognl.OgnlOps.convertValue($3," + type.getName() + ".class)"; |
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} |
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private static String getIndexString( OgnlContext context, Object index ) |
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{ |
178 | 31 | String indexStr = index.toString(); |
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|
185 | 31 | if ( context.getCurrentType() != null && !context.getCurrentType().isPrimitive() |
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&& Number.class.isAssignableFrom( context.getCurrentType() ) ) |
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{ |
188 | 8 | indexStr += "." + OgnlRuntime.getNumericValueGetter( context.getCurrentType() ); |
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} |
190 | 23 | else if ( context.getCurrentObject() != null && Number.class.isAssignableFrom( |
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context.getCurrentObject().getClass() ) && !context.getCurrentType().isPrimitive() ) |
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{ |
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|
195 | 2 | String toString = |
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String.class.isInstance( index ) && context.getCurrentType() != Object.class ? "" : ".toString()"; |
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|
198 | 2 | indexStr = "org.apache.commons.ognl.OgnlOps#getIntValue(" + indexStr + toString + ")"; |
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} |
200 | 31 | return indexStr; |
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} |
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} |