LongObjectUnserializer.java

/**********************************************************\
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|                          hprose                          |
|                                                          |
| Official WebSite: http://www.hprose.com/                 |
|                   http://www.hprose.org/                 |
|                                                          |
\**********************************************************/
/**********************************************************\
 *                                                        *
 * LongObjectUnserializer.java                            *
 *                                                        *
 * Long unserializer class for Java.                      *
 *                                                        *
 * LastModified: Aug 3, 2016                              *
 * Author: Ma Bingyao <andot@hprose.com>                  *
 *                                                        *
\**********************************************************/

package hprose.io.unserialize;

import static hprose.io.HproseTags.TagDate;
import static hprose.io.HproseTags.TagDouble;
import static hprose.io.HproseTags.TagEmpty;
import static hprose.io.HproseTags.TagFalse;
import static hprose.io.HproseTags.TagInteger;
import static hprose.io.HproseTags.TagLong;
import static hprose.io.HproseTags.TagSemicolon;
import static hprose.io.HproseTags.TagString;
import static hprose.io.HproseTags.TagTime;
import static hprose.io.HproseTags.TagTrue;
import static hprose.io.HproseTags.TagUTF8Char;
import java.io.IOException;
import java.lang.reflect.Type;

public class LongObjectUnserializer extends BaseUnserializer<Long> {

    public final static LongObjectUnserializer instance = new LongObjectUnserializer();

    @Override
    public Long unserialize(Reader reader, int tag, Type type) throws IOException {
        if (tag >= '0' && tag <= '9') return (long)(tag - '0');
        if (tag == TagInteger || tag == TagLong) return ValueReader.readLong(reader, TagSemicolon);
        switch (tag) {
            case TagDouble: return Double.valueOf(ValueReader.readDouble(reader)).longValue();
            case TagEmpty: return 0l;
            case TagTrue: return 1l;
            case TagFalse: return 0l;
            case TagDate: return ReferenceReader.readDateTime(reader).toLong();
            case TagTime: return ReferenceReader.readTime(reader).toLong();
            case TagUTF8Char: return Long.parseLong(ValueReader.readUTF8Char(reader));
            case TagString: return Long.parseLong(ReferenceReader.readString(reader));
        }
        return super.unserialize(reader, tag, type);
    }

    public Long read(Reader reader) throws IOException {
        return read(reader, Long.class);
    }
}