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Add bundling flow control #213
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michaelbausor
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5cd3459
WIP: add bundling flow control
michaelbausor 540984e
Address PR comments
michaelbausor 343a24a
Add tests, add FlowControllerRuntimeException
michaelbausor 8e261d7
Addressed PR feedback
michaelbausor 86eef1a
Update FlowController with Ignore setting, and documentation.
michaelbausor f1f5422
Update documentation, address PR feedback
michaelbausor 98f2103
Apply formatting, fix tests
michaelbausor d02a888
Fix doc tags
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65 changes: 65 additions & 0 deletions
65
src/main/java/com/google/api/gax/bundling/BundlingFlowController.java
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/* | ||
* Copyright 2017, Google Inc. All rights reserved. | ||
* | ||
* Redistribution and use in source and binary forms, with or without | ||
* modification, are permitted provided that the following conditions are | ||
* met: | ||
* | ||
* * Redistributions of source code must retain the above copyright | ||
* notice, this list of conditions and the following disclaimer. | ||
* * Redistributions in binary form must reproduce the above | ||
* copyright notice, this list of conditions and the following disclaimer | ||
* in the documentation and/or other materials provided with the | ||
* distribution. | ||
* * Neither the name of Google Inc. nor the names of its | ||
* contributors may be used to endorse or promote products derived from | ||
* this software without specific prior written permission. | ||
* | ||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
*/ | ||
package com.google.api.gax.bundling; | ||
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import com.google.api.gax.core.FlowController; | ||
import com.google.api.gax.core.FlowController.FlowControlException; | ||
import com.google.common.base.Preconditions; | ||
import com.google.common.primitives.Ints; | ||
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public class BundlingFlowController<T> { | ||
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private final FlowController flowController; | ||
private final ElementCounter<T> elementCounter; | ||
private final ElementCounter<T> byteCounter; | ||
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public BundlingFlowController( | ||
FlowController flowController, | ||
ElementCounter<T> elementCounter, | ||
ElementCounter<T> byteCounter) { | ||
this.flowController = flowController; | ||
this.elementCounter = elementCounter; | ||
this.byteCounter = byteCounter; | ||
} | ||
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public void reserve(T bundle) throws FlowControlException { | ||
Preconditions.checkNotNull(bundle); | ||
int elements = Ints.checkedCast(elementCounter.count(bundle)); | ||
int bytes = Ints.checkedCast(byteCounter.count(bundle)); | ||
flowController.reserve(elements, bytes); | ||
} | ||
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public void release(T bundle) { | ||
Preconditions.checkNotNull(bundle); | ||
int elements = Ints.checkedCast(elementCounter.count(bundle)); | ||
int bytes = Ints.checkedCast(byteCounter.count(bundle)); | ||
flowController.release(elements, bytes); | ||
} | ||
} |
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