xhttp "github.com/minio/minio/internal/http"
)

// AWS Signature Version '4' constants.
const (
	signV4Algorithm = "AWS4-HMAC-SHA256"
	iso8601Format   = "20060102T150405Z"
	yyyymmdd        = "20060102"
)

type serviceType string

const (
	serviceS3  serviceType = "s3"
	serviceSTS serviceType = "sts"
)

// getCanonicalHeaders generate a list of request headers with their values

/**
 */
@Named("snapshot")
@Singleton
@Deprecated
public class SnapshotTransformation extends AbstractVersionTransformation {
    private static final String DEFAULT_SNAPSHOT_TIMESTAMP_FORMAT = "yyyyMMdd.HHmmss";

    private static final TimeZone DEFAULT_SNAPSHOT_TIME_ZONE = TimeZone.getTimeZone("Etc/UTC");

    private String deploymentTimestamp;

    @Override

		<Property name="log.pattern" value="%d [%t] %-5p %msg%n" />
		<Property name="log.file.basedir" value="${sys:fess.log.path:-target/logs}" />
		<Property name="backup.date.suffix" value="_%d{yyyyMMdd}" />
		<Property name="backup.max.history" value="10" />
		<Property name="backup.max.age" value="90" />
		<Property name="backup.audit.max.age" value="360" />
		<Property name="backup.searchlog.max.age" value="90" />

		currTime.Format(yyyymmdd),
		globalMinioDefaultRegion,
		string(serviceS3),
		"aws4_request",
	}, SlashSeparator)

	stringToSign := "AWS4-HMAC-SHA256" + "\n" + currTime.Format(iso8601Format) + "\n"
	stringToSign += scope + "\n"
	stringToSign += getSHA256Hash([]byte(canonicalRequest))

	date := sumHMAC([]byte("AWS4"+secretKey), []byte(currTime.Format(yyyymmdd)))

      <fields>
        <field>
          <name>timestamp</name>
          <version>1.0.0+</version>
          <description>The timestamp when this version was deployed. The timestamp is expressed using UTC in the format yyyyMMdd.HHmmss.</description>
          <type>String</type>
        </field>
        <field>
          <name>buildNumber</name>
          <version>1.0.0+</version>

	},
	ErrCredMalformed: {
		Code:           "AuthorizationQueryParametersError",
		Description:    "Error parsing the X-Amz-Credential parameter; the Credential is mal-formed; expecting \"<YOUR-AKID>/YYYYMMDD/REGION/SERVICE/aws4_request\".",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrMalformedDate: {
		Code:           "MalformedDate",

		"User-Agent":                   []string{"A malicious request"},
		"X-Amz-Decoded-Content-Length": []string{"8"},
		"Content-Encoding":             []string{"aws-chunked"},

D",/[+-]\d{6}-\d\d-\d\d/],["YYYY-MM-DD",/\d{4}-\d\d-\d\d/],["GGGG-[W]WW-E",/\d{4}-W\d\d-\d/],["GGGG-[W]WW",/\d{4}-W\d\d/,!1],["YYYY-DDD",/\d{4}-\d{3}/],["YYYY-MM",/\d{4}-\d\d/,!1],["YYYYYYMMDD",/[+-]\d{10}/],["YYYYMMDD",/\d{8}/],["GGGG[W]WWE",/\d{4}W\d{3}/],["GGGG[W]WW",/\d{4}W\d{2}/,!1],["YYYYDDD",/\d{7}/],["YYYYMM",/\d{6}/,!1],["YYYY",/\d{4}/,!1]],Ya=[["HH:mm:ss.SSSS",/\d\d:\d\d:\d\d\.\d+/],["HH:mm:ss,SSSS",/\d\d:\d\d:\d\d,\d+/],["HH:mm:ss",/\d\d:\d\d:\d\d/],["HH:mm",/\d\d:\d\d/],["HHmmss.SSSS...

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToPlainPattern() throws Exception {
        assertThat(toPlainPattern("y/M/d"), is("yyMMdd"));
    }

    }

    /**
     * @throws Exception
     */
    @Test
    public void testToPlainPattern() throws Exception {
        assertThat(toPlainPattern("y/M/d H:m:s"), is("yyMMdd HHmmss"));
    }