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/**
* Copyright 2010-present Facebook.
*
* 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.facebook;
import android.os.Handler;
import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Map;
class ProgressOutputStream extends FilterOutputStream implements RequestOutputStream {
private final Map progressMap;
private final RequestBatch requests;
private final long threshold;
private long batchProgress, lastReportedProgress, maxProgress;
private RequestProgress currentRequestProgress;
ProgressOutputStream(OutputStream out, RequestBatch requests, Map progressMap, long maxProgress) {
super(out);
this.requests = requests;
this.progressMap = progressMap;
this.maxProgress = maxProgress;
this.threshold = Settings.getOnProgressThreshold();
}
private void addProgress(long size) {
if (currentRequestProgress != null) {
currentRequestProgress.addProgress(size);
}
batchProgress += size;
if (batchProgress >= lastReportedProgress + threshold || batchProgress >= maxProgress) {
reportBatchProgress();
}
}
private void reportBatchProgress() {
if (batchProgress > lastReportedProgress) {
for (RequestBatch.Callback callback : requests.getCallbacks()) {
if (callback instanceof RequestBatch.OnProgressCallback) {
final Handler callbackHandler = requests.getCallbackHandler();
// Keep copies to avoid threading issues
final RequestBatch.OnProgressCallback progressCallback = (RequestBatch.OnProgressCallback) callback;
if (callbackHandler == null) {
progressCallback.onBatchProgress(requests, batchProgress, maxProgress);
}
else {
callbackHandler.post(new Runnable() {
@Override
public void run() {
progressCallback.onBatchProgress(requests, batchProgress, maxProgress);
}
});
}
}
}
lastReportedProgress = batchProgress;
}
}
public void setCurrentRequest(Request request) {
currentRequestProgress = request != null? progressMap.get(request) : null;
}
long getBatchProgress() {
return batchProgress;
}
long getMaxProgress() {
return maxProgress;
}
@Override
public void write(byte[] buffer) throws IOException {
out.write(buffer);
addProgress(buffer.length);
}
@Override
public void write(byte[] buffer, int offset, int length) throws IOException {
out.write(buffer, offset, length);
addProgress(length);
}
@Override
public void write(int oneByte) throws IOException {
out.write(oneByte);
addProgress(1);
}
@Override
public void close() throws IOException {
super.close();
for (RequestProgress p : progressMap.values()) {
p.reportProgress();
}
reportBatchProgress();
}
}
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