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add new AWSResourceManager.EnsureControllerTags() method (#90)
Issue #, if available: aws-controllers-k8s/community#1261 Description of changes: * Adds new `AWSResourceManager.EnsureTags()` method * `EnsureTags` method will be called before invoking `reconcile` method to update the desired resource with the ACK controller tags * This change also introduces a new `Tags` shape, which will be used as mediator/hub to merge AWS tags represented using different go types. * code-generator will generate the logic of conversion to/from `Tags` By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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| Original file line number | Diff line number | Diff line change |
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| // Copyright Amazon.com Inc. or its affiliates. All Rights Reserved. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"). You may | ||
| // not use this file except in compliance with the License. A copy of the | ||
| // License is located at | ||
| // | ||
| // http://aws.amazon.com/apache2.0/ | ||
| // | ||
| // or in the "license" file accompanying this file. This file 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. | ||
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| package tags | ||
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| // Tags represents the AWS tags which will be added to the AWS resource. | ||
| // Inside aws-sdk-go, Tags are represented using multiple types, Ex: map of | ||
| // string, list of structs etc... | ||
| // Tags type will be used as a hub/mediator to merge tags represented | ||
| // using different types. | ||
| type Tags map[string]string | ||
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| // NewTags returns Tags with empty tags | ||
| func NewTags() Tags { | ||
| return map[string]string{} | ||
| } | ||
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| // Merge merges two set of Tags and returns the merge result. | ||
| // In case of collision precedence is given to tags present in the first | ||
| // parameter 'a'. | ||
| func Merge(a Tags, b Tags) Tags { | ||
| var result Tags | ||
| // Initialize result with the first set of tags 'a'. | ||
| // If first set is nil, initialize result with empty set of tags. | ||
| if a == nil { | ||
| result = NewTags() | ||
| } else { | ||
| result = a | ||
| } | ||
| if b != nil && len(b) > 0 { | ||
| // Add all the tags which are not already present in result | ||
| for tk, tv := range b { | ||
| if _, found := result[tk]; !found { | ||
| result[tk] = tv | ||
| } | ||
| } | ||
| } | ||
| return result | ||
| } |
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