com.net.plus.common.Utils.Util.java Source code

Introduction

Here is the source code for com.net.plus.common.Utils.Util.java

Source

/*
 * @(#)Util.java 2013-7-12
 * Copyright 2008 Client Service International, Inc. All rights reserved.
 * CSII PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.net.plus.common.Utils;

import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpEntity;
import org.apache.http.util.ByteArrayBuffer;

/**
 * Util.java
 * 
 * <p>
 * Created on 2013-7-12 Modification history
 * <p>
 *
 * @author yixx
 * @version 1.0
 * @since 1.0
 */
public class Util {

    public static byte[] toByteArray(HttpEntity entity) {
        InputStream instream = null;
        byte[] ret = null;
        try {
            if (entity == null) {
                throw new IllegalArgumentException("HTTP entity may not be null");
            }
            instream = entity.getContent();
            if (instream == null) {
                return null;
            }
            int i = (int) entity.getContentLength();
            if (i < 0) {
                i = 4096;
            }
            ByteArrayBuffer buffer = new ByteArrayBuffer(i);
            byte tmp[] = new byte[4096];
            int l;
            while ((l = instream.read(tmp)) != -1) {
                buffer.append(tmp, 0, l);
            }
            ret = buffer.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (instream != null) {
                    instream.close();
                }
            } catch (IOException e) {

            }
        }

        return ret;
    }

    public static byte[] getBytesFromFile(String file) {
        if (file == null) {
            return null;
        }
        byte[] ret = null;
        FileInputStream in = null;
        try {
            in = new FileInputStream(file);
            ByteArrayOutputStream out = new ByteArrayOutputStream(4096);
            byte[] b = new byte[4096];
            int n;
            while ((n = in.read(b)) != -1) {
                out.write(b, 0, n);
            }
            ret = out.toByteArray();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException e) {

                }
            }
        }
        return ret;
    }

}