com.github.davidmoten.aws.lw.client.internal.util

Class Util

java.lang.Object

com.github.davidmoten.aws.lw.client.internal.util.Util

public final class Util
extends Object

Utilities for encoding and decoding binary data to and from different forms.

Method Summary

Modifier and Type	Method and Description
static String	canonicalMetadataKey(String meta)
static HttpURLConnection	createHttpConnection(URL endpointUrl, String httpMethod, Map<String,String> headers, int connectTimeoutMs, int readTimeoutMs)
static InputStream	emptyInputStream()
static Optional<String>	jsonFieldText(String json, String fieldName)
static byte[]	readBytesAndClose(InputStream in)
static byte[]	sha256(byte[] data)
static byte[]	sha256(String text) Hashes the string contents (assumed to be UTF-8) using the SHA-256 algorithm.
static String	toHex(byte[] data) Converts byte data to a Hex-encoded string.
static URL	toUrl(String url)
static String	urlEncode(String url, boolean keepPathSlash)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createHttpConnection

public static HttpURLConnection createHttpConnection(URL endpointUrl,
                                                     String httpMethod,
                                                     Map<String,String> headers,
                                                     int connectTimeoutMs,
                                                     int readTimeoutMs)
                                              throws IOException

Throws:

IOException

canonicalMetadataKey

public static String canonicalMetadataKey(String meta)

toHex

public static String toHex(byte[] data)

Converts byte data to a Hex-encoded string.

Parameters:

data - data to hex encode.

Returns:

hex-encoded string.

toUrl

public static URL toUrl(String url)

urlEncode

public static String urlEncode(String url,
                               boolean keepPathSlash)

sha256

public static byte[] sha256(String text)

Hashes the string contents (assumed to be UTF-8) using the SHA-256 algorithm.

sha256

public static byte[] sha256(byte[] data)

readBytesAndClose

public static byte[] readBytesAndClose(InputStream in)

emptyInputStream

public static final InputStream emptyInputStream()

jsonFieldText

public static Optional<String> jsonFieldText(String json,
                                             String fieldName)