Package org.apache.camel.http.common

Class CamelServlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.apache.camel.http.common.CamelServlet

All Implemented Interfaces:

Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig, HttpRegistryProvider

public class CamelServlet
extends javax.servlet.http.HttpServlet
implements HttpRegistryProvider

A servlet to use as a Camel route as entry.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ASYNC_PARAM
static final String	EXECUTOR_REF_PARAM
static final String	FORCE_AWAIT_PARAM
protected final org.slf4j.Logger	log
static final List<String>	METHODS

Constructor Summary

Constructors

Constructor	Description
CamelServlet()

Method Summary

Modifier and Type	Method	Description
protected void	afterProcess(javax.servlet.http.HttpServletResponse res, HttpConsumer consumer, org.apache.camel.Exchange exchange, boolean rethrow)
void	connect(HttpConsumer consumer)
void	disconnect(HttpConsumer consumer)
protected void	doService(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)	This is the logical implementation to handle request with CamelServlet This is where most exceptions should be handled
protected void	doServiceAsync(javax.servlet.AsyncContext context)	This is used to handle request asynchronously
Map<String,HttpConsumer>	getConsumers()
protected Executor	getExecutorService(HttpConsumer consumer)
String	getServletName()
ServletResolveConsumerStrategy	getServletResolveConsumerStrategy()
protected void	handleService(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse resp)
void	init(javax.servlet.ServletConfig config)
boolean	isAsync()
protected ClassLoader	overrideTccl(org.apache.camel.Exchange exchange)	Override the Thread Context ClassLoader if need be.
protected HttpConsumer	resolve(javax.servlet.http.HttpServletRequest request)	Deprecated. use ServletResolveConsumerStrategy.resolve(javax.servlet.http.HttpServletRequest, java.util.Map)
protected void	restoreTccl(org.apache.camel.Exchange exchange, ClassLoader oldTccl)	Restore the Thread Context ClassLoader if the old TCCL is not null.
protected void	service(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	setAsync(boolean async)
void	setServletName(String servletName)
void	setServletResolveConsumerStrategy(ServletResolveConsumerStrategy servletResolveConsumerStrategy)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doGet, doHead, doOptions, doPost, doPut, doTrace, getLastModified, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, init, log, log

Methods inherited from class java.lang.Object

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

Field Details

ASYNC_PARAM

public static final String ASYNC_PARAM

See Also:

• Constant Field Values

FORCE_AWAIT_PARAM

public static final String FORCE_AWAIT_PARAM

See Also:

• Constant Field Values

EXECUTOR_REF_PARAM

public static final String EXECUTOR_REF_PARAM

See Also:

• Constant Field Values

METHODS

public static final List<String> METHODS

log

protected final org.slf4j.Logger log

Constructor Details

CamelServlet

public CamelServlet()

Method Details

init

public void init(javax.servlet.ServletConfig config)
          throws javax.servlet.ServletException

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

Throws:

javax.servlet.ServletException

service

protected void service(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)

Overrides:

service in class javax.servlet.http.HttpServlet

handleService

protected void handleService(javax.servlet.http.HttpServletRequest req,
 javax.servlet.http.HttpServletResponse resp)
                      throws javax.servlet.ServletException,
IOException

Throws:

javax.servlet.ServletException

IOException

getExecutorService

protected Executor getExecutorService(HttpConsumer consumer)

doServiceAsync

protected void doServiceAsync(javax.servlet.AsyncContext context)

This is used to handle request asynchronously

Parameters:

context - the AsyncContext

doService

protected void doService(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
                  throws javax.servlet.ServletException,
IOException

This is the logical implementation to handle request with CamelServlet This is where most exceptions should be handled

Parameters:

request - the HttpServletRequest

response - the HttpServletResponse

Throws:

javax.servlet.ServletException

IOException

afterProcess

protected void afterProcess(javax.servlet.http.HttpServletResponse res,
 HttpConsumer consumer,
 org.apache.camel.Exchange exchange,
 boolean rethrow)
                     throws IOException,
javax.servlet.ServletException

Throws:

IOException

javax.servlet.ServletException

resolve

@Deprecated
protected HttpConsumer resolve(javax.servlet.http.HttpServletRequest request)

Deprecated.

use ServletResolveConsumerStrategy.resolve(javax.servlet.http.HttpServletRequest, java.util.Map)

connect

public void connect(HttpConsumer consumer)

Specified by:

connect in interface HttpRegistryProvider

disconnect

public void disconnect(HttpConsumer consumer)

Specified by:

disconnect in interface HttpRegistryProvider

getServletName

public String getServletName()

Specified by:

getServletName in interface HttpRegistryProvider

Specified by:

getServletName in interface javax.servlet.ServletConfig

Overrides:

getServletName in class javax.servlet.GenericServlet

setServletName

public void setServletName(String servletName)

getServletResolveConsumerStrategy

public ServletResolveConsumerStrategy getServletResolveConsumerStrategy()

setServletResolveConsumerStrategy

public void setServletResolveConsumerStrategy(ServletResolveConsumerStrategy servletResolveConsumerStrategy)

isAsync

public boolean isAsync()

setAsync

public void setAsync(boolean async)

getConsumers

public Map<String,HttpConsumer> getConsumers()

overrideTccl

protected ClassLoader overrideTccl(org.apache.camel.Exchange exchange)

Override the Thread Context ClassLoader if need be.

Returns:

old classloader if overridden; otherwise returns null

restoreTccl

protected void restoreTccl(org.apache.camel.Exchange exchange,
 ClassLoader oldTccl)

Restore the Thread Context ClassLoader if the old TCCL is not null.