com.cedarsoftware.io.factory.ArrayFactory Maven / Gradle / Ivy
package com.cedarsoftware.io.factory;
import java.lang.reflect.Array;
import com.cedarsoftware.io.JsonObject;
import com.cedarsoftware.io.JsonReader;
import com.cedarsoftware.io.Resolver;
import com.cedarsoftware.util.convert.Converter;
/**
* @author John DeRegnaucourt ([email protected])
*
* Copyright (c) Cedar Software LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* License
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
public class ArrayFactory implements JsonReader.ClassFactory {
private final Class type;
public ArrayFactory(Class c) {
this.type = c;
}
public T newInstance(Class c, JsonObject jObj, Resolver resolver) {
Object[] items = jObj.getJsonArray();
Converter converter = resolver.getConverter();
if (items == null) {
jObj.setTarget(null);
return null;
}
int len = items.length;
Class arrayType = getType();
Class componentType = arrayType.getComponentType();
Object array = Array.newInstance(componentType, len);
for (int i = 0; i < len; i++) {
Object val = items[i];
if (val == null) {
} else if (val instanceof JsonObject) {
Class type;
do {
// Allow for {@type:long, value:{@type:int, value:3}} (and so on...)
JsonObject jsonObject = (JsonObject) val;
type = jsonObject.getJavaType();
if (!jsonObject.hasValue()) {
break;
}
val = jsonObject.getValue();
} while (val instanceof JsonObject);
if (type == null) {
type = componentType;
}
val = resolver.getConverter().convert(val, type);
} else {
val = resolver.getConverter().convert(val, componentType);
}
try {
Array.set(array, i, val);
} catch (Exception e) {
Array.set(array, i, converter.convert(val, componentType));
}
}
jObj.setTarget(array);
return (T) jObj.getTarget();
}
public Class getType() {
return type;
}
/**
* @return true. Strings are always immutable, final.
*/
public boolean isObjectFinal() {
return true;
}
}