java.lang.Object
- org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor
- - org.springframework.remoting.httpinvoker.SimpleHttpInvokerRequestExecutor

All Implemented Interfaces:
Aware, BeanClassLoaderAware, HttpInvokerRequestExecutor
```
public class SimpleHttpInvokerRequestExecutor
extends AbstractHttpInvokerRequestExecutor
```
HttpInvokerRequestExecutor implementation that uses standard Java facilities to execute POST requests, without support for HTTP authentication or advanced configuration options.
Designed for easy subclassing, customizing specific template methods. However, consider HttpComponentsHttpInvokerRequestExecutor for more sophisticated needs: The standard HttpURLConnection class is rather limited in its capabilities.
Since:
1.1
Author:
Juergen Hoeller
See Also:
HttpURLConnection

Field Summary
- Fields inherited from class org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor
  CONTENT_TYPE_SERIALIZED_OBJECT, ENCODING_GZIP, HTTP_HEADER_ACCEPT_ENCODING, HTTP_HEADER_ACCEPT_LANGUAGE, HTTP_HEADER_CONTENT_ENCODING, HTTP_HEADER_CONTENT_LENGTH, HTTP_HEADER_CONTENT_TYPE, HTTP_METHOD_POST, logger

Constructor Summary
Constructors
Constructor Description
SimpleHttpInvokerRequestExecutor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected RemoteInvocationResult`	`doExecuteRequest(HttpInvokerClientConfiguration config, ByteArrayOutputStream baos)`	Execute the given request through a standard `HttpURLConnection`.
`protected boolean`	`isGzipResponse(HttpURLConnection con)`	Determine whether the given response is a GZIP response.
`protected HttpURLConnection`	`openConnection(HttpInvokerClientConfiguration config)`	Open an `HttpURLConnection` for the given remote invocation request.
`protected void`	`prepareConnection(HttpURLConnection connection, int contentLength)`	Prepare the given HTTP connection.
`protected InputStream`	`readResponseBody(HttpInvokerClientConfiguration config, HttpURLConnection con)`	Extract the response body from the given executed remote invocation request.
`void`	`setConnectTimeout(int connectTimeout)`	Set the underlying URLConnection's connect timeout (in milliseconds).
`void`	`setReadTimeout(int readTimeout)`	Set the underlying URLConnection's read timeout (in milliseconds).
`protected void`	`validateResponse(HttpInvokerClientConfiguration config, HttpURLConnection con)`	Validate the given response as contained in the `HttpURLConnection` object, throwing an exception if it does not correspond to a successful HTTP response.
`protected void`	`writeRequestBody(HttpInvokerClientConfiguration config, HttpURLConnection con, ByteArrayOutputStream baos)`	Set the given serialized remote invocation as request body.

Methods inherited from class org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor
createObjectInputStream, decorateInputStream, decorateOutputStream, doReadRemoteInvocationResult, doWriteRemoteInvocation, executeRequest, getBeanClassLoader, getByteArrayOutputStream, getContentType, isAcceptGzipEncoding, readRemoteInvocationResult, setAcceptGzipEncoding, setBeanClassLoader, setContentType, writeRemoteInvocation

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - SimpleHttpInvokerRequestExecutor
```
public SimpleHttpInvokerRequestExecutor()
```
- Method Detail
  - setConnectTimeout
```
public void setConnectTimeout(int connectTimeout)
```
    Set the underlying URLConnection's connect timeout (in milliseconds). A timeout value of 0 specifies an infinite timeout.
    Default is the system's default timeout.
    See Also:
    URLConnection.setConnectTimeout(int)
  - setReadTimeout
```
public void setReadTimeout(int readTimeout)
```
    Set the underlying URLConnection's read timeout (in milliseconds). A timeout value of 0 specifies an infinite timeout.
    Default is the system's default timeout.
    See Also:
    URLConnection.setReadTimeout(int)
  - doExecuteRequest
```
protected RemoteInvocationResult doExecuteRequest(HttpInvokerClientConfiguration config,
                                                  ByteArrayOutputStream baos)
                                           throws IOException,
                                                  ClassNotFoundException
```
    Execute the given request through a standard HttpURLConnection.
    This method implements the basic processing workflow: The actual work happens in this class's template methods.
    Specified by:
    doExecuteRequest in class AbstractHttpInvokerRequestExecutor
    Parameters:
    config - the HTTP invoker configuration that specifies the target service
    baos - the ByteArrayOutputStream that contains the serialized RemoteInvocation object
    Returns:
    the RemoteInvocationResult object
    Throws:
    IOException - if thrown by I/O operations
    ClassNotFoundException - if thrown during deserialization
    See Also:
    openConnection(org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration), prepareConnection(java.net.HttpURLConnection, int), writeRequestBody(org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration, java.net.HttpURLConnection, java.io.ByteArrayOutputStream), validateResponse(org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration, java.net.HttpURLConnection), readResponseBody(org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration, java.net.HttpURLConnection)
  - openConnection
```
protected HttpURLConnection openConnection(HttpInvokerClientConfiguration config)
                                    throws IOException
```
    Open an HttpURLConnection for the given remote invocation request.
    Parameters:
    config - the HTTP invoker configuration that specifies the target service
    Returns:
    the HttpURLConnection for the given request
    Throws:
    IOException - if thrown by I/O methods
    See Also:
    URL.openConnection()
  - prepareConnection
```
protected void prepareConnection(HttpURLConnection connection,
                                 int contentLength)
                          throws IOException
```
    Prepare the given HTTP connection.
    The default implementation specifies POST as method, "application/x-java-serialized-object" as "Content-Type" header, and the given content length as "Content-Length" header.
    Parameters:
    connection - the HTTP connection to prepare
    contentLength - the length of the content to send
    Throws:
    IOException - if thrown by HttpURLConnection methods
    See Also:
    HttpURLConnection.setRequestMethod(java.lang.String), URLConnection.setRequestProperty(java.lang.String, java.lang.String)
  - writeRequestBody
```
protected void writeRequestBody(HttpInvokerClientConfiguration config,
                                HttpURLConnection con,
                                ByteArrayOutputStream baos)
                         throws IOException
```
    Set the given serialized remote invocation as request body.
    The default implementation simply write the serialized invocation to the HttpURLConnection's OutputStream. This can be overridden, for example, to write a specific encoding and potentially set appropriate HTTP request headers.
    Parameters:
    config - the HTTP invoker configuration that specifies the target service
    con - the HttpURLConnection to write the request body to
    baos - the ByteArrayOutputStream that contains the serialized RemoteInvocation object
    Throws:
    IOException - if thrown by I/O methods
    See Also:
    URLConnection.getOutputStream(), URLConnection.setRequestProperty(java.lang.String, java.lang.String)
  - validateResponse
```
protected void validateResponse(HttpInvokerClientConfiguration config,
                                HttpURLConnection con)
                         throws IOException
```
    Validate the given response as contained in the HttpURLConnection object, throwing an exception if it does not correspond to a successful HTTP response.
    Default implementation rejects any HTTP status code beyond 2xx, to avoid parsing the response body and trying to deserialize from a corrupted stream.
    Parameters:
    config - the HTTP invoker configuration that specifies the target service
    con - the HttpURLConnection to validate
    Throws:
    IOException - if validation failed
    See Also:
    HttpURLConnection.getResponseCode()
  - readResponseBody
```
protected InputStream readResponseBody(HttpInvokerClientConfiguration config,
                                       HttpURLConnection con)
                                throws IOException
```
    Extract the response body from the given executed remote invocation request.
    The default implementation simply reads the serialized invocation from the HttpURLConnection's InputStream. If the response is recognized as GZIP response, the InputStream will get wrapped in a GZIPInputStream.
    Parameters:
    config - the HTTP invoker configuration that specifies the target service
    con - the HttpURLConnection to read the response body from
    Returns:
    an InputStream for the response body
    Throws:
    IOException - if thrown by I/O methods
    See Also:
    isGzipResponse(java.net.HttpURLConnection), GZIPInputStream, URLConnection.getInputStream(), HttpURLConnection.getHeaderField(int), HttpURLConnection.getHeaderFieldKey(int)
  - isGzipResponse
```
protected boolean isGzipResponse(HttpURLConnection con)
```
    Determine whether the given response is a GZIP response.
    Default implementation checks whether the HTTP "Content-Encoding" header contains "gzip" (in any casing).
    Parameters:
    con - the HttpURLConnection to check

Class SimpleHttpInvokerRequestExecutor

Field Summary

Fields inherited from class org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor

Constructor Summary

Method Summary

Methods inherited from class org.springframework.remoting.httpinvoker.AbstractHttpInvokerRequestExecutor

Methods inherited from class java.lang.Object

Constructor Detail

SimpleHttpInvokerRequestExecutor

Method Detail

setConnectTimeout

setReadTimeout

doExecuteRequest

openConnection

prepareConnection

writeRequestBody

validateResponse

readResponseBody

isGzipResponse