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samples/guide/src/main/java/okhttp3/recipes/UploadProgress.java
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| /* | ||
| * Copyright (C) 2015 Square, Inc. | ||
| * | ||
| * 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 okhttp3.recipes; | ||
|
|
||
| import okhttp3.MediaType; | ||
| import okhttp3.OkHttpClient; | ||
| import okhttp3.Request; | ||
| import okhttp3.RequestBody; | ||
| import okhttp3.Response; | ||
| import okio.Buffer; | ||
| import okio.BufferedSink; | ||
| import okio.ForwardingSink; | ||
| import okio.Okio; | ||
| import okio.Sink; | ||
| import java.io.File; | ||
| import java.io.IOException; | ||
|
|
||
| public final class UploadProgress { | ||
| private static final String IMGUR_CLIENT_ID = "9199fdef135c122"; | ||
| private static final MediaType MEDIA_TYPE_PNG = MediaType.get("image/png"); | ||
|
|
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| private final OkHttpClient client = new OkHttpClient(); | ||
|
|
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| public void run() throws Exception { | ||
| // Use the imgur image upload API as documented at https://api.imgur.com/endpoints/image | ||
| final ProgressListener progressListener = new ProgressListener() { | ||
| boolean firstUpdate = true; | ||
|
|
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| @Override public void update(long bytesWritten, long contentLength, boolean done) { | ||
| if (done) { | ||
| System.out.println("completed"); | ||
| } else { | ||
| if (firstUpdate) { | ||
| firstUpdate = false; | ||
| if (contentLength == -1) { | ||
| System.out.println("content-length: unknown"); | ||
| } else { | ||
| System.out.format("content-length: %d\n", contentLength); | ||
| } | ||
| } | ||
|
|
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| System.out.println(bytesWritten); | ||
|
|
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| if (contentLength != -1) { | ||
| System.out.format("%d%% done\n", (100 * bytesWritten) / contentLength); | ||
| } | ||
| } | ||
| } | ||
| }; | ||
|
|
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| RequestBody requestBody = RequestBody.create( | ||
| new File("docs/images/logo-square.png"), | ||
| MEDIA_TYPE_PNG); | ||
|
|
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| Request request = new Request.Builder() | ||
| .header("Authorization", "Client-ID " + IMGUR_CLIENT_ID) | ||
| .url("https://api.imgur.com/3/image") | ||
| .post(new ProgressRequestBody(requestBody, progressListener)) | ||
| .build(); | ||
|
|
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| Response response = client.newCall(request).execute(); | ||
| if (!response.isSuccessful()) throw new IOException("Unexpected code " + response); | ||
|
|
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| System.out.println(response.body().string()); | ||
| } | ||
|
|
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| public static void main(String... args) throws Exception { | ||
| new UploadProgress().run(); | ||
| } | ||
|
|
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| private static class ProgressRequestBody extends RequestBody { | ||
|
|
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| private final ProgressListener progressListener; | ||
| private final RequestBody delegate; | ||
|
|
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| public ProgressRequestBody(RequestBody delegate, ProgressListener progressListener) { | ||
| this.delegate = delegate; | ||
| this.progressListener = progressListener; | ||
| } | ||
|
|
||
| @Override | ||
| public MediaType contentType() { | ||
| return delegate.contentType(); | ||
| } | ||
|
|
||
| @Override | ||
| public long contentLength() throws IOException { | ||
| return delegate.contentLength(); | ||
| } | ||
|
|
||
| @Override | ||
| public void writeTo(BufferedSink sink) throws IOException { | ||
| BufferedSink bufferedSink = Okio.buffer(sink(sink)); | ||
| delegate.writeTo(bufferedSink); | ||
| bufferedSink.flush(); | ||
| } | ||
|
|
||
| public Sink sink(Sink sink) { | ||
| return new ForwardingSink(sink) { | ||
| private long totalBytesWritten = 0L; | ||
| private boolean completed = false; | ||
|
|
||
| @Override | ||
| public void write(Buffer source, long byteCount) throws IOException { | ||
| super.write(source, byteCount); | ||
| totalBytesWritten += byteCount; | ||
| progressListener.update(totalBytesWritten, contentLength(), completed); | ||
| } | ||
|
|
||
| @Override | ||
| public void close() throws IOException { | ||
| super.close(); | ||
| if (!completed) { | ||
| completed = true; | ||
| progressListener.update(totalBytesWritten, contentLength(), completed); | ||
| } | ||
| } | ||
| }; | ||
| } | ||
| } | ||
|
|
||
| interface ProgressListener { | ||
| void update(long bytesWritten, long contentLength, boolean done); | ||
| } | ||
| } |