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Flatpack
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Component
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The
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Flatpack
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component
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supports
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fixed
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width
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and
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delimited
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file
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parsing
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via
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the
...
...
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.
Notice:
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This
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component
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only
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supports
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consuming
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from
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flatpack
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files
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to
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Object
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model.
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You
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can
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not
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(yet)
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write
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from
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Object
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model
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to
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flatpack
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format.
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Maven
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users
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will
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need
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to
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add
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the
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following
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dependency
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to
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their
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pom.xml
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for
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this
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component:
Code Block | ||||
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{code:xml} <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-flatpack</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> {code} h3. URI format {code} |
URI format
Code Block |
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flatpack:[delim|fixed]:flatPackConfig.pzmap.xml[?options]
{code}
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Or
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for
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a
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delimited
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file
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handler
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with
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no
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configuration
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file
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just
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use
Code Block |
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} flatpack:someName[?options] {code} |
You
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can
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append
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query
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options
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to
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the
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URI
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in
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the
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following
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format,
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?option=value&option=value&...
...
URI Options
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Examples
flatpack:fixed:foo.pzmap.xml
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- creates
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- a
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- fixed-width
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- endpoint
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- using
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- the
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foo.pzmap.xml
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- file
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- configuration.
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flatpack:delim:bar.pzmap.xml
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- creates
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- a
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- delimited
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- endpoint
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- using
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- the
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bar.pzmap.xml
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- file
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- configuration.
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flatpack:foo
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- creates
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- a
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- delimited
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- endpoint
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- called
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foo
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- with
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- no
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- file
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- configuration.
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Message
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Headers
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Camel
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will
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store
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the
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following
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headers
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on
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the
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IN
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message:
Div | ||||
---|---|---|---|---|
| =confluenceTableSmall}
|| Header || Description ||
| {{camelFlatpackCounter}} | The current row index. For {{splitRows=false}} the counter is the total number of rows. |
{div}
h3. Message Body
The component delivers the data in the IN message as a {{
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Message Body
The component delivers the data in the IN message as a org.apache.camel.component.flatpack.DataSetList
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object
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that
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has
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converters
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for
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java.util.Map
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or
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java.util.List
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.
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Usually
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you
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want
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the
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Map
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if
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you
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process
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one
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row
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at
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a
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time
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(
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splitRows=true
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).
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Use
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List
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for
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the
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entire
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content
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(
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splitRows=false
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),
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where
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each
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element
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in
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the
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list
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is
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a
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Map
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.
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Each
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Map
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contains
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the
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key
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for
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the
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column
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name
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and
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its
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corresponding
...
value.
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For
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example
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to
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get
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the
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firstname
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from
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the
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sample
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below:
Code Block | ||||
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{code:java} Map row = exchange.getIn().getBody(Map.class); String firstName = row.get("FIRSTNAME"); {code} |
However,
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you
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can
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also
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always
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get
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it
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as
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a
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List
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(even
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for
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splitRows=true
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).
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The
...
same
...
example:
Code Block | ||||
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{code:java}
List data = exchange.getIn().getBody(List.class);
Map row = (Map)data.get(0);
String firstName = row.get("FIRSTNAME");
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Header and Trailer records
The header and trailer notions in Flatpack are supported. However, you must use fixed record IDs:
header
for the header record (must be lowercase)trailer
for the trailer record (must be lowercase)
The example below illustrates this fact that we have a header and a trailer. You can omit one or both of them if not needed.
Code Block | ||||
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{code} h3. Header and Trailer records In Camel 1.5 onwards the header and trailer notions in Flatpack are supported. However, you *must* use fixed record IDs: * {{header}} for the header record (must be lowercase) * {{trailer}} for the trailer record (must be lowercase) The example below illustrates this fact that we have a header and a trailer. You can omit one or both of them if not needed. {code:xml} <RECORD id="header" startPosition="1" endPosition="3" indicator="HBT"> <COLUMN name="INDICATOR" length="3"/> <COLUMN name="DATE" length="8"/> </RECORD> <COLUMN name="FIRSTNAME" length="35" /> <COLUMN name="LASTNAME" length="35" /> <COLUMN name="ADDRESS" length="100" /> <COLUMN name="CITY" length="100" /> <COLUMN name="STATE" length="2" /> <COLUMN name="ZIP" length="5" /> <RECORD id="trailer" startPosition="1" endPosition="3" indicator="FBT"> <COLUMN name="INDICATOR" length="3"/> <COLUMN name="STATUS" length="7"/> </RECORD> {code} h3. Using the endpoint A common use case is sending a file to this endpoint for further processing in a separate route. For example: {code:xml} |
Using the endpoint
A common use case is sending a file to this endpoint for further processing in a separate route. For example:
Code Block | ||||
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<camelContext xmlns="http://activemq.apache.org/camel/schema/spring">
<route>
<from uri="file://someDirectory"/>
<to uri="flatpack:foo"/>
</route>
<route>
<from uri="flatpack:foo"/>
...
</route>
</camelContext>
{code}
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You
...
can
...
also
...
convert
...
the
...
payload
...
of
...
each
...
message
...
created
...
to
...
a
...
Map
...
for
...
easy
...
...
...
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