/*
* Copyright (C) 2012 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.crsh.cli.impl;
import org.crsh.cli.impl.descriptor.IllegalValueTypeException;
import org.crsh.cli.type.ValueType;
import org.crsh.cli.type.ValueTypeFactory;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
public final class ParameterType<V> {
public static ParameterType create(ValueTypeFactory factory, Type type) throws IllegalValueTypeException {
Class<?> declaredType;
Multiplicity multiplicity;
if (type instanceof Class<?>) {
declaredType = (Class<Object>)type;
multiplicity = Multiplicity.SINGLE;
} else if (type instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType)type;
Type rawType = parameterizedType.getRawType();
if (rawType instanceof Class<?>) {
Class<?> classRawType = (Class<Object>)rawType;
if (List.class.equals(classRawType)) {
Type elementType = parameterizedType.getActualTypeArguments()[0];
if (elementType instanceof Class<?>) {
declaredType = (Class<Object>)elementType;
multiplicity = Multiplicity.MULTI;
} else {
throw new IllegalValueTypeException();
}
} else {
throw new IllegalValueTypeException();
}
} else {
throw new IllegalValueTypeException();
}
} else {
throw new IllegalValueTypeException();
}
//
Class<?> effectiveType;
ValueType valueType;
if (declaredType == String.class) {
effectiveType = String.class;
valueType = ValueType.STRING;
} else if (declaredType == Integer.class || declaredType == int.class) {
effectiveType = Integer.class;
valueType = ValueType.INTEGER;
} else if (declaredType == Boolean.class || declaredType == boolean.class) {
effectiveType = Boolean.class;
valueType = ValueType.BOOLEAN;
} else if (Enum.class.isAssignableFrom(declaredType)) {
effectiveType = declaredType;
valueType = ValueType.ENUM;
} else {
effectiveType = declaredType;
valueType = factory.get(declaredType);
if (valueType == null) {
throw new IllegalValueTypeException("Type " + declaredType.getName() + " is not handled at the moment");
}
}
//
return new ParameterType(multiplicity, declaredType, effectiveType, valueType);
}
/** . */
private final Multiplicity multiplicity;
/** . */
private final Class<?> declaredType;
/** . */
private final Class<V> effectiveType;
/** . */
private final ValueType<V> valueType;
ParameterType(Multiplicity multiplicity, Class<?> declaredType, Class<V> effectiveType, ValueType<V> valueType) {
this.multiplicity = multiplicity;
this.declaredType = declaredType;
this.effectiveType = effectiveType;
this.valueType = valueType;
}
public Object parse(String s) throws Exception {
return valueType.parse(effectiveType, s);
}
public Multiplicity getMultiplicity() {
return multiplicity;
}
public Class<?> getDeclaredType() {
return declaredType;
}
public Class<V> getEffectiveType() {
return effectiveType;
}
public ValueType<V> getValueType() {
return valueType;
}
}