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ByteArrayBodyHandler.java
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ByteArrayBodyHandler.java
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/**
* Copyright (C) 2015 Red Hat, 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 io.fabric8.kubernetes.client.http;
import io.fabric8.kubernetes.client.http.HttpClient.AsyncBody;
import io.fabric8.kubernetes.client.http.HttpClient.BodyConsumer;
import java.nio.ByteBuffer;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.stream.Collectors;
public class ByteArrayBodyHandler implements BodyConsumer<List<ByteBuffer>> {
private final LinkedList<ByteBuffer> buffers = new LinkedList<>();
private final CompletableFuture<byte[]> result = new CompletableFuture<>();
@Override
public synchronized void consume(List<ByteBuffer> value, AsyncBody asyncBody) throws Exception {
this.buffers.addAll(value);
asyncBody.consume();
}
protected void onResponse(HttpResponse<AsyncBody> response) {
AsyncBody asyncBody = response.body();
asyncBody.done().whenComplete(this::onBodyDone);
asyncBody.consume();
}
private synchronized void onBodyDone(Void v, Throwable t) {
if (t != null) {
result.completeExceptionally(t);
} else {
int size = buffers.stream().map(ByteBuffer::remaining).collect(Collectors.summingInt(Integer::intValue)).intValue();
byte[] res = new byte[size];
int from = 0;
for (ByteBuffer b : buffers) {
int l = b.remaining();
b.get(res, from, l);
from += l;
}
result.complete(res);
}
buffers.clear();
}
public CompletableFuture<byte[]> getResult() {
return result;
}
}