49 lines
1.1 KiB
Java
49 lines
1.1 KiB
Java
/**
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* Copyright (C) 2008 Happy Fish / YuQing
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* <p>
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* FastDFS Java Client may be copied only under the terms of the GNU Lesser
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* General Public License (LGPL).
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* Please visit the FastDFS Home Page http://www.csource.org/ for more detail.
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*/
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package org.csource.fastdfs;
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import java.io.IOException;
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import java.lang.reflect.Array;
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/**
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* C struct body decoder
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*
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* @author Happy Fish / YuQing
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* @version Version 1.17
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*/
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public class ProtoStructDecoder<T extends StructBase> {
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/**
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* Constructor
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*/
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public ProtoStructDecoder() {
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}
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/**
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* decode byte buffer
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*/
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public T[] decode(byte[] bs, Class<T> clazz, int fieldsTotalSize) throws Exception {
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if (bs.length % fieldsTotalSize != 0) {
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throw new IOException("byte array length: " + bs.length + " is invalid!");
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}
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int count = bs.length / fieldsTotalSize;
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int offset;
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T[] results = (T[]) Array.newInstance(clazz, count);
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offset = 0;
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for (int i = 0; i < results.length; i++) {
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results[i] = clazz.newInstance();
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results[i].setFields(bs, offset);
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offset += fieldsTotalSize;
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}
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return results;
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}
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}
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