com.lidroid.xutils.http.client.UploadFileEntity.java Source code

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Here is the source code for com.lidroid.xutils.http.client.UploadFileEntity.java

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/*
 * Copyright (c) 2013. wyouflf (wyouflf@gmail.com)
 *
 * 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
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 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.
 */

package com.lidroid.xutils.http.client;

import com.lidroid.xutils.http.client.callback.RequestCallBackHandler;
import com.lidroid.xutils.http.client.callback.UploadEntity;
import org.apache.http.entity.FileEntity;

import java.io.*;

/**
 * Created with IntelliJ IDEA.
 * User: wyouflf
 * Date: 13-6-24
 * Time: ?4:45
 */
public class UploadFileEntity extends FileEntity implements UploadEntity {

    public UploadFileEntity(File file, String contentType) {
        super(file, contentType);
        fileSize = file.length();
        uploadedSize = 0;
    }

    private long fileSize;
    private long uploadedSize;

    @Override
    public void writeTo(OutputStream outStream) throws IOException {
        if (outStream == null) {
            throw new IllegalArgumentException("Output stream may not be null");
        }
        InputStream inStream = new FileInputStream(this.file);
        try {
            byte[] tmp = new byte[4096];
            int len;
            while ((len = inStream.read(tmp)) != -1) {
                outStream.write(tmp, 0, len);
                uploadedSize += len;
                if (callback != null) {
                    if (!callback.updateProgress(fileSize, uploadedSize, false)) {
                        throw new IOException("stop");
                    }
                }
            }
            outStream.flush();
            if (callback != null) {
                callback.updateProgress(fileSize, uploadedSize, true);
            }
        } finally {
            inStream.close();
        }
    }

    private RequestCallBackHandler callback = null;

    @Override
    public void setCallBack(RequestCallBackHandler callBack) {
        this.callback = callBack;
    }
}