This tutorial aims to guide the reader through the stages of creating a project which uses Camel to facilitate the routing of messages from a JMS queue to a Spring service. The route works in a synchronous fashion returning a response to the client.

Dependencies

File Expression Language

The File Expression Language is an extension to the Simple language, adding file related capabilities. These capabilities are related to common use cases working with file path and names. The goal is to allow expressions to be used with the File and FTP components for setting dynamic file patte rns for both consumer and producer.

Syntax

This language is an extension to the Simple language so the Simple syntax applies also. So the table below only lists the additional.
As opposed to Simple language File Language also supports Constant expressions so you can enter a fixed filename.

All the file tokens use the same expression name as the method on the java.io.File object, for instance file:absolute refers to the java.io.File.getAbsolute() method. Notice that not all expressions are supported by the current Exchange. For instance the FTP component supports some of the options, where as the File component supports all of them.

File token example

Relative paths

We have a java.io.File handle for the file hello.txt in the following relative directory: .\filelanguage\test. And we configure our endpoint to use this starting directory .\filelanguage. The file tokens will return as:

Absolute paths

We have a java.io.File handle for the file hello.txt in the following absolute directory: \workspace\camel\camel-core\target\filelanguage\test. And we configure out endpoint to use the absolute starting directory \workspace\camel\camel-core\target\filelanguage. The file tokens will return as:

Samples

File Expression Language

File language is now merged with Simple language

From Camel 2.2 onwards, the file language is now merged with Simple language which means you can use all the file syntax directly within the simple language.

Syntax

Expression	Type	File Consumer	File Producer	FTP Consumer	FTP Producer	Description
file:name	String	yes	no	yes	no	refers to the file name (is relative to the starting directory, see note below)
file:name.ext	String	yes	no	yes	no	Camel 2.3: refers to the file extension only
file:name.singleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file extension. If the file extension has mutiple dots, then this expression strips and only returns the last part.
file:name.noext	String	yes	no	yes	no	refers to the file name with no extension (is relative to the starting directory, see note below)
file:name.nosingleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file name with no extension (is relative to the starting directory, see note below). If the file extension has multiple dots, then this expression strips only the last part, and keep the others.
file:onlyname	String	yes	no	yes	no	refers to the file name only with no leading paths.
file:onlyname.noext	String	yes	no	yes	no	refers to the file name only with no extension and with no leading paths.
file:onlyname.nosingleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file name only with no extension and with no leading paths. If the file extension has multiple dots, then this expression strips only the last part, and keep the others.
file:ext	String	yes	no	yes	no	refers to the file extension only
file:parent	String	yes	no	yes	no	refers to the file parent
file:path	String	yes	no	yes	no	refers to the file path
file:absolute	Boolean	yes	no	no	no	refers to whether the file is regarded as absolute or relative
file:absolute.path	String	yes	no	no	no	refers to the absolute file path
file:length	Long	yes	no	yes	no	refers to the file length returned as a Long type
file:size	Long	yes	no	yes	no	Camel 2.5: refers to the file length returned as a Long type
file:modified	Date	yes	no	yes	no	efers to the file last modified returned as a Date type
date:command:pattern	String	yes	yes	yes	yes	for date formatting using the `java.text.SimpleDateFormat` patterns. Is an extension to the Simple language. Additional command is: file (consumers only) for the l ast modified timestamp of the file. Notice: all the commands from the Simple language can also be used.

File token example

Relative paths

Expression	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	filelanguage\test
file:path	filelanguage\test\hello.txt
file:absolute	false
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Absolute paths

Expression	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	\workspace\cam el\camel-core\target\filelanguage\test
file:path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt
file:absolute	true
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Samples

You can enter a fixed Constant expression such as myfile.txt:

Lets assume we use the file consumer to read files and want to move the read files to backup folder with the current date as a sub folder. This can be archieved using an expression like:

@@ -17599,11 +17599,11 @@ template.send("direct:alias-verify&
 ]]>
 

CXF Component

When using CXF as a consumer, the CXF Bean Component allows you to factor out how message payloads are received from their processing as a RESTful or SOAP web service. This has the potential of using a multitude of transports to consume web services. The bean component's configuration is also simpler and provides the fastest method to implement web services using Camel and CXF.

When using CXF in streaming modes (see DataFormat option), then also read about Stream caching.

The cxf: component provides integration with Apache CXF for connecting to JAX-WS services hosted in CXF.

+/*]]>*/

CXF Component
- URI format
- Options
  - The descriptions of the dataformats Modified: websites/production/camel/content/book-languages-appendix.html ============================================================================== --- websites/production/camel/content/book-languages-appendix.html (original) +++ websites/production/camel/content/book-languages-appendix.html Sat Aug 8 10:20:10 2015 @@ -1166,7 +1166,7 @@ from("direct:start") </route> ]]>

Dependencies

The Simple language is part of camel-core.

File Expression Language

File language is now merged with Simple language

From Camel 2.2 onwards, the file language is now merged with Simple language which means you can use all the file syntax directly within the simple language.

Syntax

Expression	Type	File Consumer	File Producer	FTP Consumer	FTP Producer	Description
file:name	String	yes	no	yes	no	refers to the file name (is relative to the starting directory, see note below)
file:name.ext	String	yes	no	yes	no	Camel 2.3: refers to the file extension only
file:name.noext	String	yes	no	yes	no	refers to the file name with no extension (is relative to the starting directory, see note below)
file:onlyname	String	yes	no	yes	no	refers to the file name only with no leading paths.
file:onlyname.noext	String	yes	no	yes	no	refers to the file name only with no extension and with no leading paths.
file:ext	String	yes	no	yes	no	refers to the file extension only
file:parent	String	yes	no	yes	no	refers to the file parent
file:path	String	yes	no	yes	no	refers to the file path
file:absolute	Boolean	yes	no	no	no	refers to whether the file is regarded as absolute or relative
file:absolute.path	String	yes	no	no	no	refers to the absolute file path
file:length	Long	yes	no	yes	no	refers to the file length returned as a Long type
file:size	Long	yes	no	yes	no	Camel 2.5: refers to the file length returned as a Long type
file:modified	Date	yes	no	yes	no	efers to the file last modified returned as a Date type
date:command:pattern	String	yes	yes	yes	yes	for date formatting using the `java.text.SimpleDateFormat` patterns. Is an extension to the Simple language. Addition al command is: file (consumers only) for the last modified timestamp of the file. Notice: all the commands from the Simple language can also be used.

File token example

Relative paths

Expression	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	filelanguage\test
file:path	filelanguage\test\hello.txt
file:absolute	false
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Absolute paths

Expressi on	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	\workspace\camel\camel-core\target\filelanguage\test
file:path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt
file:absolute	true
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Samples

You can enter a fixed Constant expression such as myfile.txt:

File Expression Language

File language is now merged with Simple language

From Camel 2.2 onwards, the file language is now merged with Simple language which means you can use all the file syntax directly within the simple language.

Syntax

Expression	Type	File Consumer	File Producer	FTP Consumer	FTP Producer	Description
file:name	String	yes	no	yes	no	refers to the file name (is relative to the starting directory, see note below)
file:name.ext	String	yes	no	yes	no	Camel 2.3: refers to the file extension only
file:name.singleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file extension. If the file extension has mutiple dots, then this expression strips and only returns the last part.
file:name.noext	String	yes	no	yes	no	refers to the file name with no extension (is relative to the starting directory, see note below)
file:name.nosingleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file name with no extension (is relative to the starting directory, see note below). If the file extension has multiple dots, then this expression strips only the last part, and keep the others.
file:onlyname	String	yes	no	yes	no	refers to the file name only with no leading paths.
file:onlyname.noext	String	yes	no	yes	no	refers to the file name only with no extension and with no leading paths.
file:onlyname.nosingleext	String	yes	no	yes	no	Camel 2.14.4/2.15.3: refers to the file name only with no extension and with no leading paths. If the file extension has multiple dots, then this expression strips only the last part, and keep the others.
file:ext	String	yes	no	yes	no	refers to the file extension only
file:parent	String	yes	no	yes	no	refers to the file parent
file:path	String	yes	no	yes	no	refers to the file path
file:absolute	Boolean	yes	no	no	no	refers to whether the file is regarded as absolute or relative
file:absolute.path	String	yes	no	no	no	refers to the absolute file path
file:length	Long	yes	no	yes	no	refers to the file length returned as a Long type
file:size	Long	yes	no	yes	no	Camel 2.5: refers to the file length returned as a Long type
file:modified	Date	yes	no	yes	no	efers to the file last modified returned as a Date type
date:command:pattern	String	yes	yes	yes	yes	for date formatting using the `java.text.SimpleDateFormat` patterns. Is an extension to the Simple language. Additional command is: file (consumers only) for the last modified timestamp of the file. Notice: all the commands from the Simple language can also be used.

File token example

Relative paths

Expression	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	filelanguage\test
file:path	filelanguage\test\ hello.txt
file:absolute	false
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Absolute paths

Expression	Returns
file:name	test\hello.txt
file:name.ext	txt
file:name.noext	test\hello
file:onlyname	hello.txt
file:onlyname.noext	hello
file:ext	txt
file:parent	\workspace\camel\camel-core\target\filelanguage\test
file:path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt
file:absolute	true
file:absolute.path	\workspace\camel\camel-core\target\filelanguage\test\hello.txt

Samples

You can enter a fixed Constant expression such as myfile.txt:

Lets assume we use the file consumer to read files and want to move the read files to backup folder with the current date as a sub folder. This can be archieved using an expression like:

Modified: websites/production/camel/content/cache/main.pageCache
==============================================================================
Binary files - no diff available.

Tutorial on Spring Remoting with JMS

Preface

Dependencies

File Expression Language

Syntax

File token example

Relative paths

Absolute paths

Samples

File Expression Language

Syntax

File token example

Relative paths

Absolute paths

Samples

See Also

CXF Component

Dependencies

File Expression Language

Syntax

File token example

Relative paths

Absolute paths

Samples

File Expression Language

Syntax

File token example

Relative paths

Absolute paths

Samples