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fix: abstract the resource a batch is using
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53 changes: 53 additions & 0 deletions
53
gax-java/gax/src/main/java/com/google/api/gax/batching/BatchResource.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* | ||
| * Copyright 2023 Google LLC | ||
| * | ||
| * 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 LLC 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.batching; | ||
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| import com.google.api.core.InternalApi; | ||
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| /** | ||
| * Represent the resource used by a batch including element and byte. It can also be extended to | ||
| * other things to determine if adding a new element needs to be flow controlled or if the current | ||
| * batch needs to be flushed. | ||
| */ | ||
| @InternalApi("For google-cloud-java client use only.") | ||
| public interface BatchResource { | ||
|
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| /** Adds the additional resource. */ | ||
| BatchResource add(BatchResource resource); | ||
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| /** Returns the element count of this resource. */ | ||
| long getElementCount(); | ||
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| /** Returns the byte count of this resource. */ | ||
| long getByteCount(); | ||
|
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| /** Returns true if the resource is empty. */ | ||
| boolean isEmpty(); | ||
| } |
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71 changes: 71 additions & 0 deletions
71
gax-java/gax/src/main/java/com/google/api/gax/batching/DefaultBatchResource.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * Copyright 2023 Google LLC | ||
| * | ||
| * 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 LLC 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.batching; | ||
|
|
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| import com.google.common.base.Preconditions; | ||
|
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| /** | ||
| * The default implementation of {@link BatchResource} which tracks the elementCount and byteCount. | ||
| */ | ||
| final class DefaultBatchResource implements BatchResource { | ||
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| private long elementCount; | ||
| private long byteCount; | ||
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| DefaultBatchResource(long elementCount, long byteCount) { | ||
| this.elementCount = elementCount; | ||
| this.byteCount = byteCount; | ||
| } | ||
|
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| @Override | ||
| public BatchResource add(BatchResource resource) { | ||
| Preconditions.checkArgument( | ||
| resource instanceof DefaultBatchResource, | ||
| "BatchResource needs to be an instance of DefaultBatchResource"); | ||
| this.elementCount += ((DefaultBatchResource) resource).elementCount; | ||
| this.byteCount += ((DefaultBatchResource) resource).byteCount; | ||
| return this; | ||
| } | ||
|
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| @Override | ||
| public long getElementCount() { | ||
| return elementCount; | ||
| } | ||
|
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| @Override | ||
| public long getByteCount() { | ||
| return byteCount; | ||
| } | ||
|
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| @Override | ||
| public boolean isEmpty() { | ||
| return elementCount == 0; | ||
| } | ||
| } |
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