001 /* 002 * Licensed under the Apache License, Version 2.0 (the "License"); 003 * you may not use this file except in compliance with the License. 004 * You may obtain a copy of the License at 005 * 006 * http://www.apache.org/licenses/LICENSE-2.0 007 * 008 * Unless required by applicable law or agreed to in writing, software 009 * distributed under the License is distributed on an "AS IS" BASIS, 010 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 011 * See the License for the specific language governing permissions and 012 * limitations under the License. 013 */ 014 package org.apache.commons.classscan.bcel; 015 016 import java.util.Set; 017 018 import org.apache.bcel.classfile.ParameterAnnotationEntry; 019 import org.apache.bcel.generic.Type; 020 import org.apache.commons.classscan.model.MetaAnnotation; 021 import org.apache.commons.classscan.model.MetaType; 022 import org.apache.commons.classscan.spi.model.SpiMetaAnnotation; 023 import org.apache.commons.classscan.spi.model.SpiMetaClassLoader; 024 import org.apache.commons.classscan.spi.model.SpiMetaParameter; 025 import org.apache.commons.classscan.util.NameSet; 026 import org.slf4j.Logger; 027 import org.slf4j.LoggerFactory; 028 029 public class BcelParameter implements SpiMetaParameter { 030 031 private static final Logger logger = LoggerFactory.getLogger(BcelParameter.class); 032 033 private MetaType type; 034 private String typeName; 035 private final NameSet<? extends SpiMetaAnnotation> annotations; 036 037 public BcelParameter(Type argType, ParameterAnnotationEntry annotationEntry) { 038 typeName = argType.getSignature(); 039 annotations = AnnotationMap.createAnnotations(annotationEntry != null 040 ?annotationEntry.getAnnotationEntries() :null); 041 } 042 043 @Override 044 public boolean resolve(SpiMetaClassLoader classLoader) { 045 type = classLoader.resolveTypeForDescriptor(typeName); 046 if(type==null) { 047 logger.info("cannot resolve "+typeName+" as a parameter type"); 048 return false; 049 } 050 typeName= null; 051 return annotations.resolve(classLoader); 052 } 053 054 @Override 055 public Set<? extends MetaAnnotation> getAnnotations() { 056 return annotations; 057 } 058 059 @Override 060 public MetaAnnotation getAnnotation(String annotationName) { 061 return annotations.getValue(annotationName); 062 } 063 064 @Override 065 public MetaType getType() { 066 return type; 067 } 068 }