//	x-amz-copy-source-if-unmodified-since
//	x-amz-copy-source-if-match
//	x-amz-copy-source-if-none-match
func checkCopyObjectPartPreconditions(ctx context.Context, w http.ResponseWriter, r *http.Request, objInfo ObjectInfo) bool {
	return checkCopyObjectPreconditions(ctx, w, r, objInfo)
}

// Validates the preconditions for CopyObject, returns true if CopyObject operation should not proceed.
// Preconditions supported are:

pkg net/http, const StatusVariantAlsoNegotiates = 506
pkg net/http, const StatusVariantAlsoNegotiates ideal-int
pkg net/http, method (*Request) Context() context.Context
pkg net/http, method (*Request) WithContext(context.Context) *Request
pkg net/http, type Request struct, Response *Response
pkg net/http, type Response struct, Uncompressed bool

				if r.TLS != nil {
					scheme = "https"
				}
				return scheme
			}(),
		}
	}
	return nil
}

// guessIsHealthCheckReq - returns true if incoming request looks
// like healthCheck request
func guessIsHealthCheckReq(req *http.Request) bool {
	if req == nil {
		return false
	}
	aType := getRequestAuthType(req)

import okhttp3.HttpUrl;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;

public class SampleHttpClient {
  private final OkHttpClient client;

  public SampleHttpClient() {
    client = new OkHttpClient.Builder().build();
  }

  public void makeCall(HttpUrl url) throws IOException {
    try (Response response = client.newCall(new Request(url, Headers.EMPTY, "GET", null)).execute()) {

Logging Interceptor
===================

An [OkHttp interceptor][interceptors] which logs HTTP request and response data.

```java
HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
logging.setLevel(Level.BASIC);
OkHttpClient client = new OkHttpClient.Builder()
  .addInterceptor(logging)
  .build();
```

You can change the log level at any time by calling `setLevel()`.

import jcifs.internal.fscc.FileSystemInformation;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.util.SMBUtil;
import jcifs.util.Hexdump;

/**
 * Trans2 QueryFSInformation request message for querying file system information.
 * This class implements the TRANS2_QUERY_FS_INFORMATION transaction to retrieve
 * various file system attributes such as volume information, size, and capabilities.
 */

            try {
                webAuthService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;
        }).orElseGet(() -> {

            try {
                accessTokenService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);
                throwValidationErrorApi(messages -> messages.addErrorsCrudFailedToCreateCrudTable(GLOBAL, buildThrowableMessage(e)));
            }
            return entity;
        }).orElseGet(() -> {

import jcifs.Configuration;
import jcifs.RuntimeCIFSException;
import jcifs.internal.SmbNegotiationRequest;
import jcifs.internal.smb1.ServerMessageBlock;
import jcifs.util.Strings;

/**
 * SMB1 Negotiate Protocol request message.
 *
 * This command is used to negotiate the SMB protocol dialect
 * and security parameters between client and server.
 */
public class SmbComNegotiate extends ServerMessageBlock implements SmbNegotiationRequest {

A "middleware" is a function that works with every **request** before it is processed by any specific *path operation*. And also with every **response** before returning it.

* It takes each **request** that comes to your application.
* It can then do something to that **request** or run any needed code.
* Then it passes the **request** to be processed by the rest of the application (by some *path operation*).