53 lines
2.0 KiB
Java
53 lines
2.0 KiB
Java
/*
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* Copyright 2020 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.buffer.api.tests.examples;
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import io.netty.buffer.api.Buffer;
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import io.netty.buffer.api.BufferAllocator;
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import io.netty.buffer.api.CompositeBuffer;
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import java.util.concurrent.ThreadLocalRandom;
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public final class ComposingAndSplittingExample {
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public static void main(String[] args) {
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try (BufferAllocator allocator = BufferAllocator.offHeapPooled();
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Buffer buf = createBigBuffer(allocator)) {
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ThreadLocalRandom tlr = ThreadLocalRandom.current();
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for (int i = 0; i < tlr.nextInt(4, 200); i++) {
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buf.writeByte((byte) tlr.nextInt());
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}
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try (Buffer split = buf.split()) {
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split.send();
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System.out.println("buf.capacity() = " + buf.capacity());
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System.out.println("buf.readableBytes() = " + buf.readableBytes());
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System.out.println("---");
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System.out.println("split.capacity() = " + split.capacity());
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System.out.println("split.readableBytes() = " + split.readableBytes());
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}
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}
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}
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private static Buffer createBigBuffer(BufferAllocator allocator) {
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return CompositeBuffer.compose(allocator,
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allocator.allocate(64).send(),
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allocator.allocate(64).send(),
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allocator.allocate(64).send(),
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allocator.allocate(64).send());
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}
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}
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