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package org.apache.commons.clazz.reflect.common; |
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import java.lang.reflect.Constructor; |
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import org.apache.commons.clazz.Clazz; |
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import org.apache.commons.clazz.ClazzAccessException; |
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import org.apache.commons.clazz.ClazzInstanceFactory; |
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import org.apache.commons.clazz.ClazzLoader; |
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import org.apache.commons.clazz.common.ClazzFeatureSupport; |
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public class ReflectedConstructorInstanceFactory extends ClazzFeatureSupport |
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implements ClazzInstanceFactory |
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{ |
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private Constructor constructor; |
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private String signature; |
37 | 0 | private static final Clazz[] EMPTY_CLAZZ_ARRAY = new Clazz[0]; |
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private Clazz[] parameterClazzes; |
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public ReflectedConstructorInstanceFactory( |
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Clazz declaringClazz, |
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Constructor constructor) |
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{ |
47 | 0 | super(declaringClazz); |
48 | 0 | this.constructor = constructor; |
49 | 0 | } |
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public Constructor getConstructor() { |
52 | 0 | return constructor; |
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} |
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public String getName() { |
56 | 0 | return null; |
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} |
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public String getSignature() { |
63 | 0 | if (signature == null) { |
64 | 0 | signature = |
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Clazz.constructSignature(null, constructor.getParameterTypes()); |
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} |
67 | 0 | return signature; |
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} |
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public Clazz[] getParameterClazzes() { |
74 | 0 | if (parameterClazzes == null) { |
75 | 0 | Class paramClasses[] = constructor.getParameterTypes(); |
76 | 0 | if (paramClasses == null) { |
77 | 0 | parameterClazzes = EMPTY_CLAZZ_ARRAY; |
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} |
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else { |
80 | 0 | parameterClazzes = new Clazz[paramClasses.length]; |
81 | 0 | ClazzLoader loader = getDeclaringClazz().getClazzLoader(); |
82 | 0 | for (int i = 0; i < paramClasses.length; i++) { |
83 | 0 | String name = Clazz.getCanonicalClassName(paramClasses[i]); |
84 | 0 | parameterClazzes[i] = loader.getClazzForName(name); |
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} |
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} |
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} |
88 | 0 | return parameterClazzes; |
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} |
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public Object newInstance(Object[] parameters) { |
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try { |
93 | 0 | return constructor.newInstance(parameters); |
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} |
95 | 0 | catch (Throwable e) { |
96 | 0 | throw new ClazzAccessException( |
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"Cannot invoke constructor " + getSignature(), |
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e); |
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} |
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} |
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public String toString() { |
103 | 0 | return getSignature(); |
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} |
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} |