Package io.strimzi.kafka.oauth.common

Class HttpUtil

java.lang.Object

io.strimzi.kafka.oauth.common.HttpUtil

public class HttpUtil
extends Object

A helper class that performs all network calls using java.net.HttpURLConnection.

If application uses many concurrent threads initiating many Kafka sessions in parallel, consider setting 'http.maxConnections' system property to value closer to the number of parallel sessions.

This value controls the size of internal connection pool per destination in JDK's java.net.HttpURLConnection implementation.

See: https://docs.oracle.com/javase/8/docs/technotes/guides/net/http-keepalive.html

By default the connect timeout and read timeout are set to 60 seconds. Use system properties oauth.connect.timeout.seconds and oauth.read.timeout.seconds, or corresponding env variables to set custom timeouts in seconds.

Constructor Summary

Constructors

Constructor	Description
HttpUtil()

Method Summary

Modifier and Type	Method	Description
static void	delete(URI uri, String authorization)	Perform HTTP DELETE request using the default connect and read timeouts (60 seconds).
static void	delete(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization)	Perform HTTP DELETE request using the default connect and read timeouts (60 seconds).
static void	delete(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization, int connectTimeout, int readTimeout)	Perform HTTP DELETE request
static <T> T	doWithRetries(int retries, long retryPauseMillis, MetricsHandler metricsHandler, HttpTask<T> task)	A helper method that implements logic for retrying unsuccessful HTTP requests
static <T> T	get(URI uri, String authorization, Class<T> responseType)	Perform HTTP GET request and return the response in the specified type.
static <T> T	get(URI uri, SSLSocketFactory socketFactory, String authorization, Class<T> responseType)	Perform HTTP GET request and return the response in the specified type.
static <T> T	get(URI uri, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, Class<T> responseType)	Perform HTTP GET request and return the response in the specified type.
static <T> T	get(URI uri, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, Class<T> responseType, int connectTimeout, int readTimeout)	Perform HTTP GET request and return the response in the specified type.
static <T> T	get(URI uri, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, Class<T> responseType, int connectTimeout, int readTimeout, boolean includeAcceptHeader)	Perform HTTP GET request and return the response in the specified type.
static <T> T	post(URI uri, String authorization, String contentType, String body, Class<T> responseType)	Perform HTTP POST request and return the response in the specified type.
static <T> T	post(URI uri, SSLSocketFactory socketFactory, String authorization, String contentType, String body, Class<T> responseType)	Perform HTTP POST request and return the response in the specified type.
static <T> T	post(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization, String contentType, String body, Class<T> responseType)	Perform HTTP POST request and return the response in the specified type.
static <T> T	post(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization, String contentType, String body, Class<T> responseType, int connectTimeout, int readTimeout, boolean includeAcceptHeader)	Perform HTTP POST request and return the response in the specified type.
static void	put(URI uri, String authorization, String contentType, String body)	Perform HTTP PUT request
static void	put(URI uri, SSLSocketFactory socketFactory, String authorization, String contentType, String body)	Perform HTTP PUT request
static void	put(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization, String contentType, String body)	Perform HTTP PUT request
static void	put(URI uri, SSLSocketFactory socketFactory, HostnameVerifier verifier, String authorization, String contentType, String body, int connectTimeout, int readTimeout)	Perform HTTP PUT request
static <T> T	request(URI uri, String method, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, String contentType, String body, Class<T> responseType)	Perform an HTTP request using the default connect and read timeouts (60 seconds).
static <T> T	request(URI uri, String method, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, String contentType, String body, Class<T> responseType, int connectTimeout, int readTimeout, boolean includeAcceptHeader)	Perform an HTTP request using the default connect and read timeouts (60 seconds).
static <T> T	request(URI uri, SSLSocketFactory socketFactory, HostnameVerifier hostnameVerifier, String authorization, String contentType, String body, Class<T> responseType)	Perform an HTTP request, auto-detecting a method, and using the default connect and read timeouts (60 seconds)..

Methods inherited from class java.lang.Object

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

Constructor Details

HttpUtil

public HttpUtil()

Method Details

doWithRetries

public static <T> T doWithRetries(int retries,
 long retryPauseMillis,
 MetricsHandler metricsHandler,
 HttpTask<T> task)
                           throws ExecutionException

A helper method that implements logic for retrying unsuccessful HTTP requests

Type Parameters:

T - Generic type of the result type of the HttpTask

Parameters:

retries - a maximum number of retries to attempt

retryPauseMillis - a pause between two consecutive retries in millis

metricsHandler - a metrics handler to track request times and failures

task - the task to run with retries

Returns:

The result of the successfully completed task

Throws:

ExecutionException - The exception thrown if the last retry still failed, wrapping the cause exception

get

public static <T> T get(URI uri,
 String authorization,
 Class<T> responseType)
                 throws IOException

Perform HTTP GET request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

authorization - The Authorization header value

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

get

public static <T> T get(URI uri,
 SSLSocketFactory socketFactory,
 String authorization,
 Class<T> responseType)
                 throws IOException

Perform HTTP GET request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

authorization - The Authorization header value

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

get

public static <T> T get(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 Class<T> responseType)
                 throws IOException

Perform HTTP GET request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

get

public static <T> T get(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 Class<T> responseType,
 int connectTimeout,
 int readTimeout)
                 throws IOException

Perform HTTP GET request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

get

public static <T> T get(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 Class<T> responseType,
 int connectTimeout,
 int readTimeout,
 boolean includeAcceptHeader)
                 throws IOException

Perform HTTP GET request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

includeAcceptHeader - Determines if Accept application/json is sent to the remote server.

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

post

public static <T> T post(URI uri,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType)
                  throws IOException

Perform HTTP POST request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

post

public static <T> T post(URI uri,
 SSLSocketFactory socketFactory,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType)
                  throws IOException

Perform HTTP POST request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

post

public static <T> T post(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType)
                  throws IOException

Perform HTTP POST request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

post

public static <T> T post(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType,
 int connectTimeout,
 int readTimeout,
 boolean includeAcceptHeader)
                  throws IOException

Perform HTTP POST request and return the response in the specified type.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

includeAcceptHeader - Determines if Accept: application/json is sent to the remote server.

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

put

public static void put(URI uri,
 String authorization,
 String contentType,
 String body)
                throws IOException

Perform HTTP PUT request

Parameters:

uri - The target url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

put

public static void put(URI uri,
 SSLSocketFactory socketFactory,
 String authorization,
 String contentType,
 String body)
                throws IOException

Perform HTTP PUT request

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

put

public static void put(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization,
 String contentType,
 String body)
                throws IOException

Perform HTTP PUT request

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

put

public static void put(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization,
 String contentType,
 String body,
 int connectTimeout,
 int readTimeout)
                throws IOException

Perform HTTP PUT request

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

delete

public static void delete(URI uri,
 String authorization)
                   throws IOException

Perform HTTP DELETE request using the default connect and read timeouts (60 seconds).

Parameters:

uri - The target url

authorization - The Authorization header value

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

delete

public static void delete(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization)
                   throws IOException

Perform HTTP DELETE request using the default connect and read timeouts (60 seconds).

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

delete

public static void delete(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier verifier,
 String authorization,
 int connectTimeout,
 int readTimeout)
                   throws IOException

Perform HTTP DELETE request

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

verifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

request

public static <T> T request(URI uri,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType)
                     throws IOException

Perform an HTTP request, auto-detecting a method, and using the default connect and read timeouts (60 seconds).. If body is null the HTTP method GET is used. If responseType is null the HTTP method PUT is used. Otherwise, the HTTP method POST is used.

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

request

public static <T> T request(URI uri,
 String method,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType)
                     throws IOException

Perform an HTTP request using the default connect and read timeouts (60 seconds).

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

method - The HTTP request method

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request

request

public static <T> T request(URI uri,
 String method,
 SSLSocketFactory socketFactory,
 HostnameVerifier hostnameVerifier,
 String authorization,
 String contentType,
 String body,
 Class<T> responseType,
 int connectTimeout,
 int readTimeout,
 boolean includeAcceptHeader)
                     throws IOException

Perform an HTTP request using the default connect and read timeouts (60 seconds).

Type Parameters:

T - Generic type of the responseType

Parameters:

uri - The target url

method - The HTTP request method

socketFactory - Socket factory to use with https:// url

hostnameVerifier - HostnameVerifier to use with https:// url

authorization - The Authorization header value

contentType - MIME type of the request body

body - The request body

responseType - The type to which to convert the response (String or one of the Jackson Mapper types)

connectTimeout - Connect timeout in seconds

readTimeout - Read timeout in seconds

includeAcceptHeader - Determines if Accept: application/json is sent to the remote server.

Returns:

The response as specified by the responseType.

Throws:

IOException - A connection, timeout, or network exception that occurs while performing the request

HttpException - A runtime exception when an HTTP response status signals a failed request