Thanks, I have some reading up to do on OGNL (and file language).
To my initial question, sorry, I'm still not able to get my test working.
Basically, nothing is output if I put a value in the name with the
expression you provided. When I put a value in the name, I get the
following output depending on the contents of the Otherwise statement
(below):
Do you have any more insight as to the issue? Here are some of the
expressions I tested and their results:
1) <camel:simple>${headerAs("name",String)}</camel:simple>
and also
<camel:simple>${headerAs("name",String).length()}</camel:simple>
both output: John
2) <camel:simple>${header("name").toString()}</camel:simple>
and also
<camel:simple>${header("name").toString().length()}</camel:simple>
both output: (nothing)
3) <camel:simple>${header("name")}</camel:simple>
outputs: (nothing)
4) <camel:simple>${in.headers.name}</camel:simple>
outputs: John
5) <camel:javaScript>(request.headers.get('name')).length.toString()
outputs: function length() {/* int length() */}
6) <camel:groovy>'hello'.toString().length()</camel:groovy>
outputs: TypeConversionException (..."Error during type conversion from
type: java.lang.Integer to the requried typoe: byte[] with value 4 due to
java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/util/Bytes.... at
org.apache.camel.imple.converter.BaseTypeConverterRegistry.convertTo(BaseTypeConverterRegistry.java:126)
7) <camel:groovy>'hello'.toString().length().toString()</camel:groovy>
outputs: 5
my route:
<camel:route>
<camel:from uri="direct:t1">
<camel:choice>
<camel:when>
<camel:javaScript>request.headers.get('name')==null</camel:javaScript>
<camel:setBody>
<camel:constant>Is Null</camel:constant>
</camel:setBody>
</camel:when>
<camel:otherwise>
<camel:setBody>
<camel:simple>${header("name").toString().length()}</camel:simple>
</camel:setBody>
</camel:otherwise>
</camel:choice>
<camel:to uri="stream:out"/>
</camel:route>
my test code:
public class CamelStringTest extends CamelStringTestSupport {
@Override
protected AbstractApplicationContext createApplicationContext() {
return new ClassPathXmlApplicationContext("context.xml");
}
@Test
public void testName() throws Exception {
Map<String,Object> headers = new HashMap<String,Object>();
headers.put("name","John");
template.sendBodyAndHeaders("direct:t1","Hello there",headers);
Thread.sleep(3000);
assertNotNull(context.getEndpoint("direct:t1"));
}
}
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