新版改版:
新增B站接口 测试直播WebSocket
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103
common/src/main/java/com/yutou/okhttp/FileCallback.java
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103
common/src/main/java/com/yutou/okhttp/FileCallback.java
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package com.yutou.okhttp;
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import okhttp3.Headers;
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import okhttp3.HttpUrl;
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import retrofit2.Call;
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import retrofit2.Callback;
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import retrofit2.Response;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.concurrent.ArrayBlockingQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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public abstract class FileCallback<T> implements Callback<FileBody<T>> {
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private static ThreadPoolExecutor executor;
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private final T bean;
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public FileCallback(T bean) {
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this.bean = bean;
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if (executor == null) {
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executor = new ThreadPoolExecutor(2, 4, Long.MAX_VALUE, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(100));
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}
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}
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private class DownloadTask implements Runnable {
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private T bean;
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private Headers headers;
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private HttpUrl url;
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private InputStream inputStream;
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public DownloadTask(T bean, Headers headers, HttpUrl url, InputStream inputStream) {
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this.bean = bean;
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this.headers = headers;
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this.url = url;
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this.inputStream = inputStream;
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}
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@Override
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public void run() {
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try {
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System.out.println("开始下载");
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File file = new File("download" + File.separator + System.currentTimeMillis() + ".flv");
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onStart(bean);
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if (!file.exists()) {
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boolean mkdirs = file.getParentFile().mkdirs();
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System.out.println("mkdirs = " + mkdirs);
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}
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FileOutputStream outputStream = new FileOutputStream(file);
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int len;
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long total = 0;
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byte[] bytes = new byte[4096];
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boolean isDownload = true;
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long available = inputStream.available();
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while ((len = inputStream.read(bytes)) != -1 && isDownload) {
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total += len;
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outputStream.write(bytes, 0, len);
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outputStream.flush();
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isDownload = onDownload(headers, bean, total, available);
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}
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System.out.println("下载完成");
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outputStream.close();
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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onFinish(bean);
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try {
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inputStream.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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}
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public abstract void onStart(T bean);
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public abstract boolean onDownload(Headers headers, T bean, long len, long total);
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public abstract void onFinish(T bean);
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public abstract void onFailure(T bean, Throwable throwable);
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@Override
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public void onResponse(Call<FileBody<T>> call, Response<FileBody<T>> response) {
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executor.execute(new DownloadTask(bean, response.headers(), call.request().url(), response.body().getInputStream()));
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}
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@Override
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public void onFailure(Call<FileBody<T>> call, Throwable throwable) {
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onFailure(bean, throwable);
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call.cancel();
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}
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}
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