/
InjectBySetter.java
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/
InjectBySetter.java
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package org.nutz.lang.inject;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.Map;
import org.nutz.castor.Castors;
import org.nutz.json.Json;
import org.nutz.lang.Lang;
import org.nutz.log.Log;
import org.nutz.log.Logs;
public class InjectBySetter implements Injecting {
private static final Log log = Logs.get();
private Method setter;
private Class<?> valueType;
private Type type;
private boolean isMapCollection;
public InjectBySetter(Method setter) {
this.setter = setter;
valueType = setter.getParameterTypes()[0];
type = setter.getGenericParameterTypes()[0];
isMapCollection = Map.class.isAssignableFrom(valueType) ||
Collection.class.isAssignableFrom(valueType);
}
public void inject(Object obj, Object value) {
Object v = null;
try {
if (isMapCollection && value != null && value instanceof String) {
v = Json.fromJson(type, value.toString());
} else {
v = Castors.me().castTo(value, valueType);
}
setter.invoke(obj, v);
}
catch (Exception e) {
if (log.isInfoEnabled())
log.info("Fail to value by setter", e);
throw Lang.makeThrow( "Fail to set '%s'[ %s ] by setter %s.'%s()' because [%s]: %s",
value,
v,
setter.getDeclaringClass().getName(),
setter.getName(),
Lang.unwrapThrow(e),
Lang.unwrapThrow(e).getMessage());
}
}
}