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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.remoting.httpinvoker

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Class Diagram

Java Document (Java Doc)

java.lang .Object

org.springframework.remoting.httpinvoker .AbstractHttpInvokerRequestExecutor

org.springframework.remoting.httpinvoker .SimpleHttpInvokerRequestExecutor

SimpleHttpInvokerRequestExecutor
public class SimpleHttpInvokerRequestExecutor extends AbstractHttpInvokerRequestExecutor (Code)
	HttpInvokerRequestExecutor implementation that uses standard J2SE facilities to execute POST requests, without support for HTTP authentication or advanced configuration options. Designed for easy subclassing, customizing specific template methods. However, consider CommonsHttpInvokerRequestExecutor for more sophisticated needs: The J2SE HttpURLConnection is rather limited in its capabilities. author: Juergen Hoeller since: 1.1 See Also: CommonsHttpInvokerRequestExecutor See Also: java.net.HttpURLConnection

Method Summary
protected RemoteInvocationResult	doExecuteRequest(HttpInvokerClientConfiguration config, ByteArrayOutputStream baos) Execute the given request through a standard J2SE 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 con, 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. The default implementation simply reads the serialized invocation from the HttpURLConnection's InputStream.
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. The default implementation simply write the serialized invocation to the HttpURLConnection's OutputStream.

Method Detail

doExecuteRequest
protected RemoteInvocationResult doExecuteRequest(HttpInvokerClientConfiguration config, ByteArrayOutputStream baos) throws IOException, ClassNotFoundException(Code)
	Execute the given request through a standard J2SE HttpURLConnection. This method implements the basic processing workflow: The actual work happens in this class's template methods. See Also: SimpleHttpInvokerRequestExecutor.openConnection See Also: SimpleHttpInvokerRequestExecutor.prepareConnection See Also: SimpleHttpInvokerRequestExecutor.writeRequestBody See Also: SimpleHttpInvokerRequestExecutor.validateResponse See Also: SimpleHttpInvokerRequestExecutor.readResponseBody

isGzipResponse
protected boolean isGzipResponse(HttpURLConnection con)(Code)
	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

openConnection
protected HttpURLConnection openConnection(HttpInvokerClientConfiguration config) throws IOException(Code)
	Open an HttpURLConnection for the given remote invocation request. Parameters: config - the HTTP invoker configuration that specifies thetarget service the HttpURLConnection for the given request throws: IOException - if thrown by I/O methods See Also: java.net.URL.openConnection

prepareConnection
protected void prepareConnection(HttpURLConnection con, int contentLength) throws IOException(Code)
	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: con - the HTTP connection to prepare Parameters: contentLength - the length of the content to send throws: IOException - if thrown by HttpURLConnection methods See Also: java.net.HttpURLConnection.setRequestMethod See Also: java.net.HttpURLConnection.setRequestProperty

readResponseBody
protected InputStream readResponseBody(HttpInvokerClientConfiguration config, HttpURLConnection con) throws IOException(Code)
	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 Parameters: con - the HttpURLConnection to read the response body from an InputStream for the response body throws: IOException - if thrown by I/O methods See Also: SimpleHttpInvokerRequestExecutor.isGzipResponse See Also: java.util.zip.GZIPInputStream See Also: java.net.HttpURLConnection.getInputStream See Also: java.net.HttpURLConnection.getHeaderField(int) See Also: java.net.HttpURLConnection.getHeaderFieldKey(int)

validateResponse
protected void validateResponse(HttpInvokerClientConfiguration config, HttpURLConnection con) throws IOException(Code)
	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 Parameters: con - the HttpURLConnection to validate throws: IOException - if validation failed See Also: java.net.HttpURLConnection.getResponseCode

writeRequestBody
protected void writeRequestBody(HttpInvokerClientConfiguration config, HttpURLConnection con, ByteArrayOutputStream baos) throws IOException(Code)
	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 Parameters: con - the HttpURLConnection to write the request body to Parameters: baos - the ByteArrayOutputStream that contains the serializedRemoteInvocation object throws: IOException - if thrown by I/O methods See Also: java.net.HttpURLConnection.getOutputStream See Also: java.net.HttpURLConnection.setRequestProperty

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

final public static String CONTENT_TYPE_SERIALIZED_OBJECT(Code)(Java Doc)
final protected static String ENCODING_GZIP(Code)(Java Doc)
final protected static String HTTP_HEADER_ACCEPT_ENCODING(Code)(Java Doc)
final protected static String HTTP_HEADER_CONTENT_ENCODING(Code)(Java Doc)
final protected static String HTTP_HEADER_CONTENT_LENGTH(Code)(Java Doc)
final protected static String HTTP_HEADER_CONTENT_TYPE(Code)(Java Doc)
final protected static String HTTP_METHOD_POST(Code)(Java Doc)
final protected Log logger(Code)(Java Doc)

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

protected ObjectInputStream createObjectInputStream(InputStream is, String codebaseUrl) throws IOException(Code)(Java Doc)
protected InputStream decorateInputStream(InputStream is) throws IOException(Code)(Java Doc)
protected OutputStream decorateOutputStream(OutputStream os) throws IOException(Code)(Java Doc)
abstract protected RemoteInvocationResult doExecuteRequest(HttpInvokerClientConfiguration config, ByteArrayOutputStream baos) throws Exception(Code)(Java Doc)
protected RemoteInvocationResult doReadRemoteInvocationResult(ObjectInputStream ois) throws IOException, ClassNotFoundException(Code)(Java Doc)
protected void doWriteRemoteInvocation(RemoteInvocation invocation, ObjectOutputStream oos) throws IOException(Code)(Java Doc)
final public RemoteInvocationResult executeRequest(HttpInvokerClientConfiguration config, RemoteInvocation invocation) throws Exception(Code)(Java Doc)
protected ClassLoader getBeanClassLoader()(Code)(Java Doc)
protected ByteArrayOutputStream getByteArrayOutputStream(RemoteInvocation invocation) throws IOException(Code)(Java Doc)
public String getContentType()(Code)(Java Doc)
public boolean isAcceptGzipEncoding()(Code)(Java Doc)
protected RemoteInvocationResult readRemoteInvocationResult(InputStream is, String codebaseUrl) throws IOException, ClassNotFoundException(Code)(Java Doc)
public void setAcceptGzipEncoding(boolean acceptGzipEncoding)(Code)(Java Doc)
public void setBeanClassLoader(ClassLoader classLoader)(Code)(Java Doc)
public void setContentType(String contentType)(Code)(Java Doc)
protected void writeRemoteInvocation(RemoteInvocation invocation, OutputStream os) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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