Package com.azure.data.appconfiguration

Class ConfigurationAsyncClient

java.lang.Object
com.azure.data.appconfiguration.ConfigurationAsyncClient
public final class ConfigurationAsyncClient extends Object

This class provides a client that contains all the operations for ConfigurationSettings, FeatureFlagConfigurationSetting or SecretReferenceConfigurationSetting in Azure App Configuration Store. Operations allowed by the client are adding, retrieving, deleting, set read-only status ConfigurationSettings, and listing settings or revision of a setting based on a filter.

Additionally, this class allows to add an external synchronization token to ensure service requests receive up-to-date values. Use the updateSyncToken method.

Getting Started

In order to interact with the App Configuration service you'll need to create an instance of the ConfigurationAsyncClient class. To make this possible you'll need the connection string of the configuration store. Alternatively, you can use AAD authentication via Azure Identity to connect to the service.

  1. Connection string, see connectionString.
  2. Azure Active Directory, see TokenCredential.

Instantiating an asynchronous Configuration Client

 ConfigurationAsyncClient configurationAsyncClient = new ConfigurationClientBuilder()
     .connectionString(connectionString)
     .buildAsyncClient();

View this for additional ways to construct the client.

App Configuration support multiple operations, such as create, update, retrieve, and delete a configuration setting. See methods in client level class below to explore all capabilities that library provides.

For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.


Add Configuration Setting

The addConfigurationSetting(ConfigurationSetting) method can be used to add a configuration setting in the Azure App Configuration.

The sample below shows how to add a setting with the key "prodDBConnection", label "westUS" and value "db_connection" using ConfigurationAsyncClient.

 client.addConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("db_connection"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


Update Configuration Setting

The setConfigurationSetting(ConfigurationSetting) method can be used to update a configuration setting in the Azure App Configuration.

The sample below shows how to update setting's value "db_connection" to "updated_db_connection"

 client.setConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
 // Update the value of the setting to "updated_db_connection"
 client.setConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("updated_db_connection"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


Get Configuration Setting

The getConfigurationSetting(ConfigurationSetting) method can be used to get a configuration setting in the Azure App Configuration.

The sample below shows how to retrieve the setting with the key "prodDBConnection".

 client.getConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


Delete Configuration Setting

The deleteConfigurationSetting(ConfigurationSetting) method can be used to delete a configuration setting in the Azure App Configuration.

The sample below shows how to delete the setting with the key "prodDBConnection".

 client.deleteConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


Set the Configuration Setting to read-only

The setReadOnly(ConfigurationSetting, boolean) method can be used to conditionally set a configuration setting to read-only in the Azure App Configuration.

The sample below shows how to conditionally set the setting to read-only with the key "prodDBConnection".

 client.setReadOnly(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         true)
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


Clear read-only of the Configuration Setting

The setReadOnly(ConfigurationSetting, boolean) method can be used to conditionally clear read-only of the setting in the Azure App Configuration.

The sample below shows how to conditionally clear read-only of the setting with the key "prodDBConnection".

 client.setReadOnly(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         false)
     .subscribe(response -> System.out.printf("Key: %s, Value: %s", response.getKey(), response.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


List Configuration Settings

The listConfigurationSettings(SettingSelector) method can be used to list configuration settings in the Azure App Configuration.

The sample below shows how to list all settings that use the key "prodDBConnection".

 client.listConfigurationSettings(new SettingSelector().setKeyFilter("prodDBConnection"))
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.


List revisions of a Configuration Setting

The listRevisions(SettingSelector) method can be used to list all revisions of a configuration setting in the Azure App Configuration.

The sample below shows how to list all revision of a setting that use the key "prodDBConnection".

 client.listRevisions(new SettingSelector().setKeyFilter("prodDBConnection"))
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));

Note: For synchronous sample, refer to ConfigurationClient.

See Also:

  • Method Details

    • getEndpoint

      public String getEndpoint()
      Gets the service endpoint for the Azure App Configuration instance.
      Returns:
      the service endpoint for the Azure App Configuration instance.

    • addConfigurationSetting

      public Mono<ConfigurationSetting> addConfigurationSetting(String key, String label, String value)
      Adds a configuration value in the service if that key does not exist. The label is optional.

      Code Samples

      Add a setting with the key "prodDBConnection", label "westUS" and value "db_connection".

       client.addConfigurationSetting("prodDBConnection", "westUS", "db_connection")
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      key - The key of the configuration setting to add.
      label - The label of the configuration setting to add. If null no label will be used.
      value - The value associated with this configuration setting key.
      Returns:
      The ConfigurationSetting that was created, or null if a key collision occurs or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If a ConfigurationSetting with the same key exists.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • addConfigurationSetting

      public Mono<ConfigurationSetting> addConfigurationSetting(ConfigurationSetting setting)
      Adds a configuration value in the service if that key and label does not exist. The label value of the ConfigurationSetting is optional. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Add a setting with the key "prodDBConnection", label "westUS", and value "db_connection".

       client.addConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("db_connection"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      setting - The setting to add based on its key and optional label combination.
      Returns:
      The ConfigurationSetting that was created, or null if a key collision occurs or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If a ConfigurationSetting with the same key and label exists.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • addConfigurationSettingWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSetting>> addConfigurationSettingWithResponse(ConfigurationSetting setting)
      Adds a configuration value in the service if that key and label does not exist. The label value of the ConfigurationSetting is optional. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Add a setting with the key "prodDBConnection", label "westUS", and value "db_connection".

       client.addConfigurationSettingWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("db_connection"))
     .subscribe(response -> {
         ConfigurationSetting responseSetting = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             responseSetting.getKey(), responseSetting.getLabel(), responseSetting.getValue());
     });
      Parameters:
      setting - The setting to add based on its key and optional label combination.
      Returns:
      A REST response containing the ConfigurationSetting that was created, if a key collision occurs or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If a ConfigurationSetting with the same key and label exists.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setConfigurationSetting

      public Mono<ConfigurationSetting> setConfigurationSetting(String key, String label, String value)
      Creates or updates a configuration value in the service with the given key. the label is optional.

      Code Samples

      Add a setting with the key "prodDBConnection", "westUS" and value "db_connection"

      Update setting's value "db_connection" to "updated_db_connection"

       client.setConfigurationSetting("prodDBConnection", "westUS", "db_connection")
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
 // Update the value of the setting to "updated_db_connection"
 client.setConfigurationSetting("prodDBConnection", "westUS", "updated_db_connection")
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      key - The key of the configuration setting to create or update.
      label - The label of the configuration setting to create or update, If null no label will be used.
      value - The value of this configuration setting.
      Returns:
      The ConfigurationSetting that was created or updated, or an empty Mono if the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If the setting exists and is read-only.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setConfigurationSetting

      public Mono<ConfigurationSetting> setConfigurationSetting(ConfigurationSetting setting)
      Creates or updates a configuration value in the service. Partial updates are not supported and the entire configuration setting is updated. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Add a setting with the key "prodDBConnection", "westUS" and value "db_connection"

      Update setting's value "db_connection" to "updated_db_connection"

       client.setConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
 // Update the value of the setting to "updated_db_connection"
 client.setConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("updated_db_connection"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      setting - The setting to add based on its key and optional label combination.
      Returns:
      The ConfigurationSetting that was created or updated, or an empty Mono if the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If the setting exists and is read-only.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setConfigurationSettingWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSetting>> setConfigurationSettingWithResponse(ConfigurationSetting setting, boolean ifUnchanged)
      Creates or updates a configuration value in the service. Partial updates are not supported and the entire configuration setting is updated. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting. If ETag is specified, the configuration value is updated if the current setting's ETag matches. If the ETag's value is equal to the wildcard character ("*"), the setting will always be updated.

      Code Samples

      Add a setting with the key "prodDBConnection", label "westUS", and value "db_connection".

      Update setting's value "db_connection" to "updated_db_connection"

       client.setConfigurationSettingWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("db_connection"),
         false)
     .subscribe(response -> {
         final ConfigurationSetting result = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             result.getKey(), result.getLabel(), result.getValue());
     });
 // Update the value of the setting to "updated_db_connection"
 client.setConfigurationSettingWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS")
         .setValue("updated_db_connection"),
         false)
     .subscribe(response -> {
         final ConfigurationSetting responseSetting = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             responseSetting.getKey(), responseSetting.getLabel(), responseSetting.getValue());
     });
      Parameters:
      setting - The setting to create or update based on its key, optional label and optional ETag combination.
      ifUnchanged - Flag indicating if the setting ETag is used as a IF-MATCH header.
      Returns:
      A REST response containing the ConfigurationSetting that was created or updated, if the key is an invalid value, the setting is read-only, or an ETag was provided but does not match the service's current ETag value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If the ETag was specified, is not the wildcard character, and the current configuration value's ETag does not match, or the setting exists and is read-only.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • getConfigurationSetting

      public Mono<ConfigurationSetting> getConfigurationSetting(String key, String label)
      Attempts to get a ConfigurationSetting that matches the key, and the optional label combination.

      Code Samples

      Retrieve the setting with the key "prodDBConnection".

       client.getConfigurationSetting("prodDBConnection", "westUS")
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      key - The key of the setting to retrieve.
      label - The label of the configuration setting to retrieve. If null no label will be used.
      Returns:
      The ConfigurationSetting stored in the service, or an empty Mono if the configuration value does not exist or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceNotFoundException - If a ConfigurationSetting with key does not exist.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • getConfigurationSetting

      public Mono<ConfigurationSetting> getConfigurationSetting(String key, String label, OffsetDateTime acceptDateTime)
      Attempts to get a ConfigurationSetting that matches the key, the optional label, and the optional acceptDateTime combination.

      Code Samples

      Retrieve the setting with the key "prodDBConnection" and a time that one minute before now at UTC-Zone

       client.getConfigurationSetting(
     "prodDBConnection", "westUS", OffsetDateTime.now(ZoneOffset.UTC).minusMinutes(1))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      key - The key of the setting to retrieve.
      label - The label of the configuration setting to retrieve. If null no label will be used.
      acceptDateTime - Datetime to access a past state of the configuration setting. If null then the current state of the configuration setting will be returned.
      Returns:
      The ConfigurationSetting stored in the service, or an empty Mono if the configuration value does not exist or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceNotFoundException - If a ConfigurationSetting with key does not exist.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • getConfigurationSetting

      public Mono<ConfigurationSetting> getConfigurationSetting(ConfigurationSetting setting)
      Attempts to get the ConfigurationSetting with a matching key, and optional label, optional acceptDateTime and optional ETag combination. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Retrieve the setting with the key "prodDBConnection" and a time that one minute before now at UTC-Zone

       client.getConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      setting - The setting to retrieve.
      Returns:
      The ConfigurationSetting stored in the service, or an empty Mono if the configuration value does not exist or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceNotFoundException - If a ConfigurationSetting with the same key and label does not exist.
      com.azure.core.exception.HttpResponseException - If the key is an empty string.

    • getConfigurationSettingWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSetting>> getConfigurationSettingWithResponse(ConfigurationSetting setting, OffsetDateTime acceptDateTime, boolean ifChanged)
      Attempts to get the ConfigurationSetting with a matching key, and optional label, optional acceptDateTime and optional ETag combination. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Retrieve the setting with the key-label "prodDBConnection"-"westUS".

       client.getConfigurationSettingWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         null,
         false)
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(response -> {
         ConfigurationSetting result = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             result.getKey(), result.getLabel(), result.getValue());
     });
      Parameters:
      setting - The setting to retrieve.
      acceptDateTime - Datetime to access a past state of the configuration setting. If null then the current state of the configuration setting will be returned.
      ifChanged - Flag indicating if the setting ETag is used as a If-None-Match header.
      Returns:
      A REST response containing the ConfigurationSetting stored in the service, or null if didn't exist. null is also returned if the configuration value does not exist or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      NullPointerException - If setting is null.
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceNotFoundException - If a ConfigurationSetting with the same key and label does not exist.
      com.azure.core.exception.HttpResponseException - If the key is an empty string.

    • deleteConfigurationSetting

      public Mono<ConfigurationSetting> deleteConfigurationSetting(String key, String label)
      Deletes the ConfigurationSetting with a matching key and optional label combination.

      Code Samples

      Delete the setting with the key "prodDBConnection".

       client.deleteConfigurationSetting("prodDBConnection", "westUS")
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));
      Parameters:
      key - The key of configuration setting to delete.
      label - The label of configuration setting to delete. If null no label will be used.
      Returns:
      The deleted ConfigurationSetting or an empty Mono is also returned if the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.ResourceModifiedException - If setting is read-only.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • deleteConfigurationSetting

      public Mono<ConfigurationSetting> deleteConfigurationSetting(ConfigurationSetting setting)
      Deletes the ConfigurationSetting with a matching key, and optional label and optional ETag combination from the service. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting. If ETag is specified and is not the wildcard character ("*"), then the setting is only deleted if the ETag matches the current ETag; this means that no one has updated the ConfigurationSetting yet.

      Code Samples

      Delete the setting with the key "prodDBConnection".

       client.deleteConfigurationSetting(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"))
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getValue()));
      Parameters:
      setting - The setting to delete based on its key, optional label and optional ETag combination.
      Returns:
      The deleted ConfigurationSetting or an empty Mono is also returned if the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      NullPointerException - When setting is null.
      com.azure.core.exception.ResourceModifiedException - If setting is read-only.
      com.azure.core.exception.ResourceNotFoundException - If ETag is specified, not the wildcard character, and does not match the current ETag value.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • deleteConfigurationSettingWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSetting>> deleteConfigurationSettingWithResponse(ConfigurationSetting setting, boolean ifUnchanged)
      Deletes the ConfigurationSetting with a matching key, and optional label and optional ETag combination from the service. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting. If ETag is specified and is not the wildcard character ("*"), then the setting is only deleted if the ETag matches the current ETag; this means that no one has updated the ConfigurationSetting yet.

      Code Samples

      Delete the setting with the key-label "prodDBConnection"-"westUS"

       client.deleteConfigurationSettingWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         false)
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(response -> {
         ConfigurationSetting responseSetting = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             responseSetting.getKey(), responseSetting.getLabel(), responseSetting.getValue());
     });
      Parameters:
      setting - The setting to delete based on its key, optional label and optional ETag combination.
      ifUnchanged - Flag indicating if the setting ETag is used as a IF-MATCH header.
      Returns:
      A REST response containing the deleted ConfigurationSetting or null if didn't exist. null is also returned if the key is an invalid value or ETag is set but does not match the current ETag (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      NullPointerException - When setting is null.
      com.azure.core.exception.ResourceModifiedException - If setting is read-only.
      com.azure.core.exception.ResourceNotFoundException - If ETag is specified, not the wildcard character, and does not match the current ETag value.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setReadOnly

      public Mono<ConfigurationSetting> setReadOnly(String key, String label, boolean isReadOnly)
      Sets the read-only status for the ConfigurationSetting that matches the key, the optional label.

      Code Samples

      Set the setting to read-only with the key-label "prodDBConnection"-"westUS".

       client.setReadOnly("prodDBConnection", "westUS", true)
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

      Clear read-only of the setting with the key-label "prodDBConnection"-"westUS".

       client.setReadOnly("prodDBConnection", "westUS", false)
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(response -> System.out.printf("Key: %s, Value: %s", response.getKey(), response.getValue()));
      Parameters:
      key - The key of configuration setting to set to be read-only.
      label - The label of configuration setting to read-only. If null no label will be used.
      isReadOnly - Flag used to set the read-only status of the configuration. true will put the configuration into a read-only state, false will clear the state.
      Returns:
      The ConfigurationSetting that is read-only, or an empty Mono if a key collision occurs or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setReadOnly

      public Mono<ConfigurationSetting> setReadOnly(ConfigurationSetting setting, boolean isReadOnly)
      Sets the read-only status for the ConfigurationSetting. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Set the setting to read-only with the key-label "prodDBConnection"-"westUS".

       client.setReadOnly(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         true)
     .subscribe(response -> System.out.printf("Key: %s, Label: %s, Value: %s",
         response.getKey(), response.getLabel(), response.getValue()));

      Clear read-only of the setting with the key-label "prodDBConnection"-"westUS".

       client.setReadOnly(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         false)
     .subscribe(response -> System.out.printf("Key: %s, Value: %s", response.getKey(), response.getValue()));
      Parameters:
      setting - The configuration setting to set to read-only or not read-only based on the isReadOnly.
      isReadOnly - Flag used to set the read-only status of the configuration. true will put the configuration into a read-only state, false will clear the state.
      Returns:
      The ConfigurationSetting that is read-only, or an empty Mono if a key collision occurs or the key is an invalid value (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • setReadOnlyWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSetting>> setReadOnlyWithResponse(ConfigurationSetting setting, boolean isReadOnly)
      Sets the read-only status for the ConfigurationSetting. For more configuration setting types, see FeatureFlagConfigurationSetting and SecretReferenceConfigurationSetting.

      Code Samples

      Set the setting to read-only with the key-label "prodDBConnection"-"westUS".

       client.setReadOnlyWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         true)
     .subscribe(response -> {
         ConfigurationSetting result = response.getValue();
         System.out.printf("Key: %s, Label: %s, Value: %s",
             result.getKey(), result.getLabel(), result.getValue());
     });

      Clear read-only of the setting with the key-label "prodDBConnection"-"westUS".

       client.setReadOnlyWithResponse(new ConfigurationSetting()
         .setKey("prodDBConnection")
         .setLabel("westUS"),
         false)
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(response -> {
         ConfigurationSetting result = response.getValue();
         System.out.printf("Key: %s, Value: %s", result.getKey(), result.getValue());
     });
      Parameters:
      setting - The configuration setting to set to read-only or not read-only based on the isReadOnly.
      isReadOnly - Flag used to set the read-only status of the configuration. true will put the configuration into a read-only state, false will clear the state.
      Returns:
      A REST response containing the read-only or not read-only ConfigurationSetting if isReadOnly is true or null, or false respectively. Or return null if the setting didn't exist. null is also returned if the key is an invalid value. (which will also throw HttpResponseException described below).
      Throws:
      IllegalArgumentException - If key is null.
      com.azure.core.exception.HttpResponseException - If key is an empty string.

    • listConfigurationSettings

      public com.azure.core.http.rest.PagedFlux<ConfigurationSetting> listConfigurationSettings(SettingSelector selector)
      Fetches the configuration settings that match the selector. If selector is null, then all the configuration settings are fetched with their current values.

      Code Samples

      Retrieve all settings that use the key "prodDBConnection".

       client.listConfigurationSettings(new SettingSelector().setKeyFilter("prodDBConnection"))
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));
      Parameters:
      selector - Optional. Selector to filter configuration setting results from the service.
      Returns:
      A Flux of ConfigurationSettings that matches the selector. If no options were provided, the Flux contains all of the current settings in the service.
      Throws:
      com.azure.core.exception.HttpResponseException - If a client or service error occurs, such as a 404, 409, 429 or 500.

    • listConfigurationSettingsForSnapshot

      public com.azure.core.http.rest.PagedFlux<ConfigurationSetting> listConfigurationSettingsForSnapshot(String snapshotName)
      Fetches the configuration settings in a snapshot that matches the snapshotName. If snapshotName is null, then all the configuration settings are fetched with their current values.

      Code Samples

       String snapshotName = "{snapshotName}";
 client.listConfigurationSettingsForSnapshot(snapshotName)
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));
      Parameters:
      snapshotName - Optional. A filter used get ConfigurationSettings for a snapshot. The value should be the name of the snapshot.
      Returns:
      A Flux of ConfigurationSettings that matches the selector. If no options were provided, the Flux contains all of the current settings in the service.
      Throws:
      com.azure.core.exception.HttpResponseException - If a client or service error occurs, such as a 404, 409, 429 or 500.

    • listConfigurationSettingsForSnapshot

      public com.azure.core.http.rest.PagedFlux<ConfigurationSetting> listConfigurationSettingsForSnapshot(String snapshotName, List<SettingFields> fields)
      Fetches the configuration settings in a snapshot that matches the snapshotName. If snapshotName is null, then all the configuration settings are fetched with their current values.

      Code Samples

       String snapshotName = "{snapshotName}";
 List<SettingFields> fields = Arrays.asList(SettingFields.KEY);
 client.listConfigurationSettingsForSnapshot(snapshotName, fields)
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));
      Parameters:
      snapshotName - Optional. A filter used get ConfigurationSettings for a snapshot. The value should be the name of the snapshot.
      fields - Optional. The fields to select for the query response. If none are set, the service will return the ConfigurationSettings with a default set of properties.
      Returns:
      A Flux of ConfigurationSettings that matches the selector. If no options were provided, the Flux contains all of the current settings in the service.
      Throws:
      com.azure.core.exception.HttpResponseException - If a client or service error occurs, such as a 404, 409, 429 or 500.

    • listRevisions

      public com.azure.core.http.rest.PagedFlux<ConfigurationSetting> listRevisions(SettingSelector selector)
      Lists chronological/historical representation of ConfigurationSetting resource(s). Revisions are provided in descending order from their lastModified date. Revisions expire after a period of time, see Pricing for more information. If selector is null, then all the ConfigurationSettings are fetched in their current state. Otherwise, the results returned match the parameters given in selector.

      Code Samples

      Retrieve all revisions of the setting that has the key "prodDBConnection".

       client.listRevisions(new SettingSelector().setKeyFilter("prodDBConnection"))
     .contextWrite(Context.of(key1, value1, key2, value2))
     .subscribe(setting ->
         System.out.printf("Key: %s, Value: %s", setting.getKey(), setting.getValue()));
      Parameters:
      selector - Optional. Used to filter configuration setting revisions from the service.
      Returns:
      Revisions of the ConfigurationSetting
      Throws:
      com.azure.core.exception.HttpResponseException - If a client or service error occurs, such as a 404, 409, 429 or 500.

    • beginCreateSnapshot

      public com.azure.core.util.polling.PollerFlux<com.azure.core.util.polling.PollOperationDetails,ConfigurationSnapshot> beginCreateSnapshot(String snapshotName, ConfigurationSnapshot snapshot)
      Create a ConfigurationSnapshot by providing a snapshot name and a ConfigurationSnapshot.

      Code Samples

       List<ConfigurationSettingsFilter> filters = new ArrayList<>();
 // Key Name also supports RegExp but only support prefix end with "*", such as "k*" and is case-sensitive.
 filters.add(new ConfigurationSettingsFilter("{keyName}"));
 String snapshotName = "{snapshotName}";
 client.beginCreateSnapshot(snapshotName, new ConfigurationSnapshot(filters)
         .setRetentionPeriod(Duration.ofHours(1)))
     .flatMap(result -> result.getFinalResult())
     .subscribe(
         snapshot -> System.out.printf("Snapshot name=%s is created at %s%n",
             snapshot.getName(), snapshot.getCreatedAt()),
         ex -> System.out.printf("Error on creating a snapshot=%s, with error=%s.%n", snapshotName,
             ex.getMessage()),
         () -> System.out.println("Successfully created a snapshot."));
      Parameters:
      snapshotName - The name of the ConfigurationSnapshot to create.
      snapshot - The ConfigurationSnapshot to create.
      Returns:
      A PollerFlux that polls the creating snapshot operation until it has completed or has failed. The completed operation returns a ConfigurationSnapshot.

    • getSnapshot

      public Mono<ConfigurationSnapshot> getSnapshot(String snapshotName)
      Get a ConfigurationSnapshot by given the snapshot name.

      Code Samples

       String snapshotName = "{snapshotName}";
 client.getSnapshot(snapshotName).subscribe(
     getSnapshot -> {
         System.out.printf("Snapshot name=%s is created at %s, snapshot status is %s.%n",
             getSnapshot.getName(), getSnapshot.getCreatedAt(), getSnapshot.getStatus());
     }
 );
      Parameters:
      snapshotName - the snapshot name.
      Returns:
      A Mono of ConfigurationSnapshot.

    • getSnapshotWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSnapshot>> getSnapshotWithResponse(String snapshotName, List<SnapshotFields> fields)
      Get a ConfigurationSnapshot by given the snapshot name.

      Code Samples

       String snapshotName = "{snapshotName}";

 client.getSnapshotWithResponse(snapshotName, Arrays.asList(SnapshotFields.NAME, SnapshotFields.CREATED_AT,
     SnapshotFields.STATUS, SnapshotFields.FILTERS))
     .subscribe(
         response -> {
             ConfigurationSnapshot getSnapshot = response.getValue();
             // Only properties `name`, `createAt`, `status` and `filters` have value, and expect null or
             // empty value other than the `fields` specified in the request.
             System.out.printf("Snapshot name=%s is created at %s, snapshot status is %s.%n",
                 getSnapshot.getName(), getSnapshot.getCreatedAt(), getSnapshot.getStatus());
             List<ConfigurationSettingsFilter> filters = getSnapshot.getFilters();
             for (ConfigurationSettingsFilter filter : filters) {
                 System.out.printf("Snapshot filter key=%s, label=%s.%n", filter.getKey(), filter.getLabel());
             }
         });
      Parameters:
      snapshotName - The snapshot name.
      fields - Used to select what fields are present in the returned resource(s).
      Returns:
      A Mono of Response of ConfigurationSnapshot.

    • archiveSnapshot

      public Mono<ConfigurationSnapshot> archiveSnapshot(String snapshotName)
      Update a snapshot status from ConfigurationSnapshotStatus.READY to ConfigurationSnapshotStatus.ARCHIVED.

      Code Samples

       String snapshotName = "{snapshotName}";
 client.archiveSnapshot(snapshotName).subscribe(
     archivedSnapshot -> {
         System.out.printf("Archived snapshot name=%s is created at %s, snapshot status is %s.%n",
             archivedSnapshot.getName(), archivedSnapshot.getCreatedAt(), archivedSnapshot.getStatus());
     }
 );
      Parameters:
      snapshotName - The snapshot name.
      Returns:
      A Mono of ConfigurationSnapshot.

    • archiveSnapshotWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSnapshot>> archiveSnapshotWithResponse(String snapshotName, com.azure.core.http.MatchConditions matchConditions)
      Update a snapshot status from ConfigurationSnapshotStatus.READY to ConfigurationSnapshotStatus.ARCHIVED.

      To turn on using 'if-match' header, set the second parameter 'ifUnchanged' to true. It used to perform an operation only if the targeted resource's ETag matches the value provided. Otherwise, it will throw an exception '412 Precondition Failed'.

      Code Samples

       String snapshotName = "{snapshotName}";
 MatchConditions matchConditions = new MatchConditions().setIfMatch("{etag}");
 client.archiveSnapshotWithResponse(snapshotName, matchConditions)
     .subscribe(
         response -> {
             ConfigurationSnapshot archivedSnapshot = response.getValue();
             System.out.printf("Archived snapshot name=%s is created at %s, snapshot status is %s.%n",
                 archivedSnapshot.getName(), archivedSnapshot.getCreatedAt(), archivedSnapshot.getStatus());
         }
     );
      Parameters:
      snapshotName - The snapshot name.
      matchConditions - Specifies HTTP options for conditional requests.
      Returns:
      A Mono of ConfigurationSnapshot.

    • recoverSnapshot

      public Mono<ConfigurationSnapshot> recoverSnapshot(String snapshotName)
      Update a snapshot status from ConfigurationSnapshotStatus.ARCHIVED to ConfigurationSnapshotStatus.READY.

      Code Samples

       String snapshotName = "{snapshotName}";
 client.recoverSnapshot(snapshotName).subscribe(
     recoveredSnapshot -> {
         System.out.printf("Recovered snapshot name=%s is created at %s, snapshot status is %s.%n",
             recoveredSnapshot.getName(), recoveredSnapshot.getCreatedAt(), recoveredSnapshot.getStatus());
     }
 );
      Parameters:
      snapshotName - The snapshot name.
      Returns:
      A Mono of ConfigurationSnapshot.

    • recoverSnapshotWithResponse

      public Mono<com.azure.core.http.rest.Response<ConfigurationSnapshot>> recoverSnapshotWithResponse(String snapshotName, com.azure.core.http.MatchConditions matchConditions)
      Update a snapshot status from ConfigurationSnapshotStatus.ARCHIVED to ConfigurationSnapshotStatus.READY.

      To turn on using 'if-match' header, set the second parameter 'ifUnchanged' to true. It used to perform an operation only if the targeted resource's ETag matches the value provided. Otherwise, it will throw an exception '412 Precondition Failed'.

      Code Samples

       String snapshotName = "{snapshotName}";
 MatchConditions matchConditions = new MatchConditions().setIfMatch("{etag}");
 client.recoverSnapshotWithResponse(snapshotName, matchConditions).subscribe(
     response -> {
         ConfigurationSnapshot recoveredSnapshot = response.getValue();
         System.out.printf("Recovered snapshot name=%s is created at %s, snapshot status is %s.%n",
             recoveredSnapshot.getName(), recoveredSnapshot.getCreatedAt(), recoveredSnapshot.getStatus());
     }
 );
      Parameters:
      snapshotName - The snapshot name.
      matchConditions - Specifies HTTP options for conditional requests.
      Returns:
      A Mono of ConfigurationSnapshot.

    • listSnapshots

      public com.azure.core.http.rest.PagedFlux<ConfigurationSnapshot> listSnapshots(SnapshotSelector selector)
      List snapshots by given SnapshotSelector.

      Code Samples

       String snapshotNameFilter = "{snapshotNamePrefix}*";
 client.listSnapshots(new SnapshotSelector().setNameFilter(snapshotNameFilter))
     .subscribe(recoveredSnapshot -> {
         System.out.printf("Recovered snapshot name=%s is created at %s, snapshot status is %s.%n",
             recoveredSnapshot.getName(), recoveredSnapshot.getCreatedAt(), recoveredSnapshot.getStatus());
     });
      Parameters:
      selector - Optional. Used to filter ConfigurationSnapshot from the service.
      Returns:
      A PagedFlux of ConfigurationSnapshot.

    • updateSyncToken

      public void updateSyncToken(String token)
      Adds an external synchronization token to ensure service requests receive up-to-date values.
      Parameters:
      token - an external synchronization token to ensure service requests receive up-to-date values.
      Throws:
      NullPointerException - if the given token is null.