BaseUnserializer.java

/**********************************************************\
|                                                          |
|                          hprose                          |
|                                                          |
| Official WebSite: http://www.hprose.com/                 |
|                   http://www.hprose.org/                 |
|                                                          |
\**********************************************************/
/**********************************************************\
 *                                                        *
 * BaseUnserializer.java                                  *
 *                                                        *
 * hprose base unserializer class for Java.               *
 *                                                        *
 * LastModified: Aug 4, 2016                              *
 * Author: Ma Bingyao <andot@hprose.com>                  *
 *                                                        *
\**********************************************************/

package hprose.io.unserialize;

import static hprose.io.HproseTags.TagClass;
import static hprose.io.HproseTags.TagNull;
import static hprose.io.HproseTags.TagRef;
import hprose.util.ClassUtil;
import java.io.IOException;
import java.lang.reflect.Type;

public abstract class BaseUnserializer<T> implements Unserializer<T> {

    public T unserialize(Reader reader, int tag, Type type) throws IOException {
        throw ValueReader.castError(reader.tagToString(tag), ClassUtil.toClass(type));
    }

    @SuppressWarnings({"unchecked"})
    public T read(Reader reader, int tag, Type type) throws IOException {
        if (tag == TagNull) return null;
        if (tag == TagRef) return (T) reader.readRef(type);
        if (tag == TagClass) {
            reader.readClass();
            return read(reader, type);
        }
        return unserialize(reader, tag, type);
    }

    public T read(Reader reader, Type type) throws IOException {
        return read(reader, reader.stream.read(), type);
    }
}