org.springframework.remoting.httpinvoker
Class AbstractHttpInvokerRequestExecutor

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

All Implemented Interfaces:

HttpInvokerRequestExecutor

Direct Known Subclasses:

CommonsHttpInvokerRequestExecutor, SimpleHttpInvokerRequestExecutor

public abstract class AbstractHttpInvokerRequestExecutor

extends java.lang.Object

implements HttpInvokerRequestExecutor

Abstract base implementation of the HttpInvokerRequestExecutor interface.

Preimplements serialization of RemoteInvocation objects and deserialization of RemoteInvocationResults objects.

Since:

1.1

Author:

Juergen Hoeller

See Also:

doExecuteRequest(org.springframework.remoting.httpinvoker.HttpInvokerClientConfiguration, java.io.ByteArrayOutputStream)

Field Summary

protected static java.lang.String	CONTENT_TYPE_SERIALIZED_OBJECT
protected static java.lang.String	HTTP_HEADER_CONTENT_LENGTH
protected static java.lang.String	HTTP_HEADER_CONTENT_TYPE
protected static java.lang.String	HTTP_METHOD_POST
protected org.apache.commons.logging.Log	logger

Constructor Summary

AbstractHttpInvokerRequestExecutor()

Method Summary

protected abstract RemoteInvocationResult	doExecuteRequest(HttpInvokerClientConfiguration config, java.io.ByteArrayOutputStream baos) Execute a request to send the given serialized remote invocation.
RemoteInvocationResult	executeRequest(HttpInvokerClientConfiguration config, RemoteInvocation invocation) Execute a request to send the given remote invocation.
protected java.io.ByteArrayOutputStream	getByteArrayOutputStream(RemoteInvocation invocation) Serialize the given RemoteInvocation into a ByteArrayOutputStream.
protected RemoteInvocationResult	readRemoteInvocationResult(java.io.InputStream is) Deserialize a RemoteInvocationResult from the given InputStream.
protected void	writeRemoteInvocation(RemoteInvocation invocation, java.io.OutputStream os) Serialize the given RemoteInvocation to the given OutputStream.

Methods inherited from class java.lang.Object

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

Field Detail

CONTENT_TYPE_SERIALIZED_OBJECT

protected static final java.lang.String CONTENT_TYPE_SERIALIZED_OBJECT

See Also:

Constant Field Values

HTTP_HEADER_CONTENT_TYPE

protected static final java.lang.String HTTP_HEADER_CONTENT_TYPE

See Also:

Constant Field Values

HTTP_HEADER_CONTENT_LENGTH

protected static final java.lang.String HTTP_HEADER_CONTENT_LENGTH

See Also:

Constant Field Values

HTTP_METHOD_POST

protected static final java.lang.String HTTP_METHOD_POST

See Also:

Constant Field Values

logger

protected final org.apache.commons.logging.Log logger

Constructor Detail

AbstractHttpInvokerRequestExecutor

public AbstractHttpInvokerRequestExecutor()

Method Detail

executeRequest

public final RemoteInvocationResult executeRequest(HttpInvokerClientConfiguration config,
                                                   RemoteInvocation invocation)
                                            throws java.io.IOException,
                                                   java.lang.ClassNotFoundException

Description copied from interface: HttpInvokerRequestExecutor

Execute a request to send the given remote invocation.

Specified by:

executeRequest in interface HttpInvokerRequestExecutor

Parameters:

config - the HTTP invoker configuration that specifies the target service

invocation - the RemoteInvocation to execute

Returns:

the RemoteInvocationResult object

Throws:

java.lang.ClassNotFoundException - if thrown during deserialization

java.io.IOException - if thrown by I/O operations

getByteArrayOutputStream

protected java.io.ByteArrayOutputStream getByteArrayOutputStream(RemoteInvocation invocation)
                                                          throws java.io.IOException

Serialize the given RemoteInvocation into a ByteArrayOutputStream.

Parameters:

invocation - the RemoteInvocation object

Returns:

a ByteArrayOutputStream with the serialized RemoteInvocation

Throws:

java.io.IOException - if thrown by I/O methods

writeRemoteInvocation

protected void writeRemoteInvocation(RemoteInvocation invocation,
                                     java.io.OutputStream os)
                              throws java.io.IOException

Serialize the given RemoteInvocation to the given OutputStream.

Parameters:

invocation - the RemoteInvocation object

os - the OutputStream to write to

Throws:

java.io.IOException - if thrown by I/O methods

doExecuteRequest

protected abstract RemoteInvocationResult doExecuteRequest(HttpInvokerClientConfiguration config,
                                                           java.io.ByteArrayOutputStream baos)
                                                    throws java.io.IOException,
                                                           java.lang.ClassNotFoundException

Execute a request to send the given serialized remote invocation.

Implementations will usually call readRemoteInvocationResult to deserialize a returned RemoteInvocationResult object.

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:

java.io.IOException - if thrown by I/O operations

java.lang.ClassNotFoundException - if thrown during deserialization

See Also:

readRemoteInvocationResult(java.io.InputStream)

readRemoteInvocationResult

protected RemoteInvocationResult readRemoteInvocationResult(java.io.InputStream is)
                                                     throws java.io.IOException,
                                                            java.lang.ClassNotFoundException

Deserialize a RemoteInvocationResult from the given InputStream.

Parameters:

is - the InputStream to read from

Returns:

the RemoteInvocationResult object

Throws:

java.io.IOException - if thrown by I/O methods

java.lang.ClassNotFoundException