Migrate manual files to logging abstraction

NEXT_CHANGELOG.md

@@ -17,5 +17,6 @@
 
 ### Internal Changes
 * Added parametrized unit tests covering PAT, Basic, OAuth M2M, GitHub OIDC, Env OIDC, File OIDC, Azure Client Secret, and Azure GitHub OIDC against six host profiles (LW, NW, LA, NA, SPOGW, SPOGA) across AWS, Azure, and GCP (138 subtests total). Mirrors databricks-sdk-go PR #1627 and databricks-sdk-py PR #1357.
+* Migrated internal SDK classes to the logging abstraction. The SDK now supports SLF4J, `java.util.logging`, or a custom backend via `LoggerFactory.setDefault()`.
 
 ### API Changes

databricks-sdk-java/src/main/java/com/databricks/sdk/core/ApiClient.java

@@ -6,6 +6,8 @@
 import com.databricks.sdk.core.http.Request;
 import com.databricks.sdk.core.http.RequestOptions;
 import com.databricks.sdk.core.http.Response;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.retry.NoRetryStrategyPicker;
 import com.databricks.sdk.core.retry.RequestBasedRetryStrategyPicker;
 import com.databricks.sdk.core.retry.RetryStrategy;
@@ -25,8 +27,6 @@
 import java.time.format.DateTimeFormatter;
 import java.util.*;
 import java.util.function.Function;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Simplified REST API client with retries, JSON POJO SerDe through Jackson and exception POJO
@@ -253,9 +253,8 @@ private Response executeInner(Request in, String path, RequestOptions options) {
 
       try {
         response = httpClient.execute(in);
-        if (LOG.isDebugEnabled()) {
-          LOG.debug(makeLogRecord(in, response));
-        }
+        Response resp = response;
+        LOG.debug(() -> makeLogRecord(in, resp));
 
         if (isResponseSuccessful(response)) {
           return response; // stop here if the request succeeded

databricks-sdk-java/src/main/java/com/databricks/sdk/core/AzureCliCredentialsProvider.java

@@ -1,14 +1,14 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.oauth.CachedTokenSource;
 import com.databricks.sdk.core.oauth.OAuthHeaderFactory;
 import com.databricks.sdk.core.oauth.Token;
 import com.databricks.sdk.core.utils.AzureUtils;
 import com.databricks.sdk.support.InternalApi;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.util.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class AzureCliCredentialsProvider implements CredentialsProvider {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/CliTokenSource.java

@@ -1,5 +1,7 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.oauth.Token;
 import com.databricks.sdk.core.oauth.TokenSource;
 import com.databricks.sdk.core.utils.Environment;
@@ -18,8 +20,6 @@
 import java.util.Arrays;
 import java.util.List;
 import org.apache.commons.io.IOUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class CliTokenSource implements TokenSource {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/ConfigLoader.java

@@ -1,5 +1,7 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.utils.Environment;
 import com.databricks.sdk.support.InternalApi;
 import java.io.FileNotFoundException;
@@ -13,8 +15,6 @@
 import org.apache.commons.configuration2.INIConfiguration;
 import org.apache.commons.configuration2.SubnodeConfiguration;
 import org.apache.commons.configuration2.ex.ConfigurationException;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class ConfigLoader {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/DatabricksCliCredentialsProvider.java

@@ -1,5 +1,7 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.oauth.CachedTokenSource;
 import com.databricks.sdk.core.oauth.OAuthHeaderFactory;
 import com.databricks.sdk.core.oauth.Token;
@@ -10,8 +12,6 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.nio.charset.StandardCharsets;
 import java.util.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class DatabricksCliCredentialsProvider implements CredentialsProvider {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/DatabricksConfig.java

@@ -4,6 +4,8 @@
 import com.databricks.sdk.core.http.HttpClient;
 import com.databricks.sdk.core.http.Request;
 import com.databricks.sdk.core.http.Response;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.oauth.ErrorTokenSource;
 import com.databricks.sdk.core.oauth.HostMetadata;
 import com.databricks.sdk.core.oauth.OAuthHeaderFactory;
@@ -19,8 +21,6 @@
 import java.time.Duration;
 import java.util.*;
 import org.apache.http.HttpMessage;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 public class DatabricksConfig {
   private static final Logger LOG = LoggerFactory.getLogger(DatabricksConfig.class);

databricks-sdk-java/src/main/java/com/databricks/sdk/core/DefaultCredentialsProvider.java

@@ -1,12 +1,12 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.oauth.*;
 import com.databricks.sdk.support.InternalApi;
 import com.google.common.base.Strings;
 import java.util.ArrayList;
 import java.util.List;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * The DefaultCredentialsProvider is the primary authentication handler for the Databricks SDK. It

databricks-sdk-java/src/main/java/com/databricks/sdk/core/GoogleCredentialsCredentialsProvider.java

@@ -3,6 +3,8 @@
 import static com.databricks.sdk.core.utils.GoogleUtils.GCP_SCOPES;
 import static com.databricks.sdk.core.utils.GoogleUtils.SA_ACCESS_TOKEN_HEADER;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import com.google.auth.oauth2.*;
 import com.google.auth.oauth2.IdTokenProvider.Option;
@@ -12,8 +14,6 @@
 import java.nio.file.Files;
 import java.nio.file.Paths;
 import java.util.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class GoogleCredentialsCredentialsProvider implements CredentialsProvider {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/GoogleIdCredentialsProvider.java

@@ -3,15 +3,15 @@
 import static com.databricks.sdk.core.utils.GoogleUtils.GCP_SCOPES;
 import static com.databricks.sdk.core.utils.GoogleUtils.SA_ACCESS_TOKEN_HEADER;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import com.google.auth.oauth2.GoogleCredentials;
 import com.google.auth.oauth2.IdTokenCredentials;
 import com.google.auth.oauth2.IdTokenProvider;
 import com.google.auth.oauth2.ImpersonatedCredentials;
 import java.io.IOException;
 import java.util.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class GoogleIdCredentialsProvider implements CredentialsProvider {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/NotebookNativeCredentialsProvider.java

@@ -1,11 +1,11 @@
 package com.databricks.sdk.core;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
 import java.util.*;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * A CredentialsProvider that uses the API token from the command context to authenticate.

databricks-sdk-java/src/main/java/com/databricks/sdk/core/commons/CommonsHttpClient.java

@@ -8,6 +8,8 @@
 import com.databricks.sdk.core.http.HttpClient;
 import com.databricks.sdk.core.http.Request;
 import com.databricks.sdk.core.http.Response;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.utils.CustomCloseInputStream;
 import com.databricks.sdk.core.utils.ProxyUtils;
 import com.databricks.sdk.support.InternalApi;
@@ -35,8 +37,6 @@
 import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
 import org.apache.http.protocol.BasicHttpContext;
 import org.apache.http.protocol.HttpContext;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 public class CommonsHttpClient implements HttpClient {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/error/AbstractErrorMapper.java

@@ -3,11 +3,11 @@
 import com.databricks.sdk.core.DatabricksError;
 import com.databricks.sdk.core.error.details.ErrorDetails;
 import com.databricks.sdk.core.http.Response;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.util.HashMap;
 import java.util.Map;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 @InternalApi
 abstract class AbstractErrorMapper {

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/AzureServicePrincipalCredentialsProvider.java

@@ -1,13 +1,13 @@
 package com.databricks.sdk.core.oauth;
 
 import com.databricks.sdk.core.*;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.utils.AzureUtils;
 import com.databricks.sdk.support.InternalApi;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.util.HashMap;
 import java.util.Map;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Adds refreshed Azure Active Directory (AAD) Service Principal OAuth tokens to every request,

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/CachedTokenSource.java

@@ -1,13 +1,13 @@
 package com.databricks.sdk.core.oauth;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.utils.ClockSupplier;
 import com.databricks.sdk.core.utils.UtcClockSupplier;
 import java.time.Duration;
 import java.time.Instant;
 import java.util.Objects;
 import java.util.concurrent.CompletableFuture;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * An OAuth TokenSource which can be refreshed.

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/Consent.java

@@ -3,6 +3,8 @@
 import com.databricks.sdk.core.DatabricksException;
 import com.databricks.sdk.core.commons.CommonsHttpClient;
 import com.databricks.sdk.core.http.HttpClient;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.sun.net.httpserver.Headers;
 import com.sun.net.httpserver.HttpExchange;
 import com.sun.net.httpserver.HttpHandler;
@@ -21,8 +23,6 @@
 import java.util.Objects;
 import java.util.Optional;
 import org.apache.commons.io.IOUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Consent provides a mechanism to retrieve an authorization code and exchange it for an OAuth token

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/DatabricksOAuthTokenSource.java

@@ -2,15 +2,15 @@
 
 import com.databricks.sdk.core.DatabricksException;
 import com.databricks.sdk.core.http.HttpClient;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.google.common.base.Strings;
 import java.time.Instant;
 import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Implementation of TokenSource that handles OAuth token exchange for Databricks authentication.

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/EndpointTokenSource.java

@@ -2,13 +2,13 @@
 
 import com.databricks.sdk.core.DatabricksException;
 import com.databricks.sdk.core.http.HttpClient;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.time.Instant;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Objects;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Represents a token source that exchanges a control plane token for an endpoint-specific dataplane

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/ExternalBrowserCredentialsProvider.java

@@ -3,6 +3,8 @@
 import com.databricks.sdk.core.CredentialsProvider;
 import com.databricks.sdk.core.DatabricksConfig;
 import com.databricks.sdk.core.DatabricksException;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.io.IOException;
 import java.nio.file.Path;
@@ -12,8 +14,6 @@
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * A {@code CredentialsProvider} which implements the Authorization Code + PKCE flow by opening a

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/FileTokenCache.java

@@ -1,5 +1,7 @@
 package com.databricks.sdk.core.oauth;
 
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.core.utils.SerDeUtils;
 import com.databricks.sdk.support.InternalApi;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -8,8 +10,6 @@
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Objects;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /** A TokenCache implementation that stores tokens as plain files. */
 @InternalApi

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/SessionCredentials.java

@@ -3,11 +3,11 @@
 import com.databricks.sdk.core.CredentialsProvider;
 import com.databricks.sdk.core.DatabricksConfig;
 import com.databricks.sdk.core.http.HttpClient;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.io.Serializable;
 import java.util.Optional;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * An implementation of RefreshableTokenSource implementing the refresh_token OAuth grant type.

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/SessionCredentialsTokenSource.java

@@ -2,12 +2,12 @@
 
 import com.databricks.sdk.core.DatabricksException;
 import com.databricks.sdk.core.http.HttpClient;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * TokenSource that handles OAuth token refresh for SessionCredentials.

databricks-sdk-java/src/main/java/com/databricks/sdk/core/oauth/TokenEndpointClient.java

@@ -6,6 +6,8 @@
 import com.databricks.sdk.core.http.HttpClient;
 import com.databricks.sdk.core.http.Request;
 import com.databricks.sdk.core.http.Response;
+import com.databricks.sdk.core.logging.Logger;
+import com.databricks.sdk.core.logging.LoggerFactory;
 import com.databricks.sdk.support.InternalApi;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import java.io.IOException;
@@ -14,8 +16,6 @@
 import java.util.Map;
 import java.util.Objects;
 import org.apache.http.HttpHeaders;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 /**
  * Client for interacting with an OAuth token endpoint.