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Add support for
AppConfigDataClient in AWS SDK (#60)
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40 changes: 40 additions & 0 deletions
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...main/java/io/github/lavenderses/aws_app_config_openfeature_provider/model/Credential.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| package io.github.lavenderses.aws_app_config_openfeature_provider.model; | ||
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| import lombok.AllArgsConstructor; | ||
| import lombok.Builder; | ||
| import lombok.Getter; | ||
| import lombok.NonNull; | ||
| import org.jetbrains.annotations.NotNull; | ||
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| /** | ||
| * A class to mask secret string to avoid it appeared in logging or something. | ||
| * This works completely exactly except {@code toString} method. For example, comparison or equality. | ||
| */ | ||
| @Getter | ||
| @AllArgsConstructor | ||
| @Builder(toBuilder = true) | ||
| public final class Credential implements Comparable<Credential> { | ||
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| @NotNull | ||
| @NonNull | ||
| private final String rawValue; | ||
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| @Override | ||
| public String toString() { | ||
| return "Masked credentials(***)"; | ||
| } | ||
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| @Override | ||
| public boolean equals(Object obj) { | ||
| if (obj instanceof Credential credential) { | ||
| return rawValue.equals(credential.rawValue); | ||
| } else { | ||
| return false; | ||
| } | ||
| } | ||
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| @Override | ||
| public int compareTo(@NotNull Credential o) { | ||
| return rawValue.compareTo(o.rawValue); | ||
| } | ||
| } |
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85 changes: 85 additions & 0 deletions
85
..._config_openfeature_provider/proxy/appconfig_data_client/AwsAppConfigDataClientProxy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| package io.github.lavenderses.aws_app_config_openfeature_provider.proxy.appconfig_data_client; | ||
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| import com.fasterxml.jackson.databind.JsonNode; | ||
| import io.github.lavenderses.aws_app_config_openfeature_provider.AwsAppConfigClientOptions; | ||
| import io.github.lavenderses.aws_app_config_openfeature_provider.app_config_model.AppConfigValue; | ||
| import io.github.lavenderses.aws_app_config_openfeature_provider.proxy.AbstractAwsAppConfigProxy; | ||
| import io.github.lavenderses.aws_app_config_openfeature_provider.proxy.config.AwsAppConfigDataClientProxyConfig; | ||
| import jakarta.annotation.PreDestroy; | ||
| import org.intellij.lang.annotations.Language; | ||
| import org.jetbrains.annotations.NotNull; | ||
| import org.jetbrains.annotations.Nullable; | ||
| import org.jetbrains.annotations.VisibleForTesting; | ||
| import software.amazon.awssdk.services.appconfigdata.AppConfigDataClient; | ||
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| import static java.util.Objects.isNull; | ||
| import static java.util.Objects.requireNonNull; | ||
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| /** | ||
| * Provider implementation proxy for accessing AWS AppConfig instance via AWS AppConfig client from SDK. | ||
| * <br/> | ||
| * You can use this with the client instance you prepared. Or just pass the configuration class, then this class creates | ||
| * and manages it. | ||
| */ | ||
| public final class AwsAppConfigDataClientProxy extends AbstractAwsAppConfigProxy { | ||
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| private final CachedFeatureFlagManager cachedFeatureFlagManager; | ||
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| @VisibleForTesting | ||
| AwsAppConfigDataClientProxy( | ||
| @NotNull final CachedFeatureFlagManager cachedFeatureFlagManager | ||
| ) { | ||
| super(); | ||
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| this.cachedFeatureFlagManager = requireNonNull(cachedFeatureFlagManager, "cachedFeatureFlagManager"); | ||
| } | ||
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| /** | ||
| * Constructor for configuring {@link AppConfigDataClient} with your own configuration. | ||
| * <br/> | ||
| * When you use this constructor, this provider implementation library is responsible for closing | ||
| * {@link AppConfigDataClient} resource. You don't have to worry about. | ||
| * | ||
| * @param config a configuration to {@link AppConfigDataClient} | ||
| */ | ||
| public AwsAppConfigDataClientProxy( | ||
| @NotNull final AwsAppConfigClientOptions options, | ||
| @NotNull final AwsAppConfigDataClientProxyConfig config | ||
| ) { | ||
| super(); | ||
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| cachedFeatureFlagManager = new CachedFeatureFlagManager( | ||
| /* options = */ options, | ||
| /* config = */ config, | ||
| /* startSession = */ true | ||
| ); | ||
| } | ||
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| @PreDestroy | ||
| @Override | ||
| public void close() throws Exception { | ||
| cachedFeatureFlagManager.close(); | ||
| } | ||
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| /** | ||
| * Get the feature flag value as JSON schema (see {@link AppConfigValue} for the schema).<br/> | ||
| * Note that return value is not validated, this is just raw value from AWS AppConfig. | ||
| * | ||
| * @param key feature flag key | ||
| * @return JSON schema response from AWS AppConfigInstance | ||
| */ | ||
| @Language("json") | ||
| @Nullable | ||
| @Override | ||
| public String getRawFlagObject(@NotNull final String key) { | ||
| final JsonNode featureFlagJsonValue = cachedFeatureFlagManager.getCachedFeatureFlagByKeyFrom( | ||
| /* key = */ requireNonNull(key, "key") | ||
| ); | ||
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| if (isNull(featureFlagJsonValue)) { | ||
| return null; | ||
| } else { | ||
| return featureFlagJsonValue.toString(); | ||
| } | ||
| } | ||
| } |
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