That is because @PropertyInject is IoC injected by Camel or Spring
when you use it to setup the beans. But in your unit test you create
that class yourself with the new constructor, then its not dependency
injection for such things.
Instead use Camel to create it with
return context().getInjector().newInstance(MyRouteBuilder.class);
On Wed, Nov 16, 2016 at 6:51 PM, Steve Huston <shus...@riverace.com> wrote:
> Thank you for the responses thus far. I still have some confusion and an
> observation.
>
> First, I find it very confusing and non-intuitive that the "properties" in
> CamelContext are apparently not the "properties" in property placeholder.
> From my reading of the various doc pages it seemed like property placeholders
> are ways to get values from the properties substituted into routes. But it
> seems like maybe there are more than one set, or type, of properties. Is this
> true?
>
> My observation... in my test below I added @PropertyInject("datafile") on the
> line above "private String filename;" and that _did_ get the value set via
> useOverridePropertiesWithPropertiesComponent(). However, if I add the same
> @PropertyInject to a member in the MyRouteBuilder class, that _does not_ get
> the value.
>
> Can someone please help me understand what's going on here?
>
> Thanks,
> -Steve
>
>> -----Original Message-----
>> From: Claus Ibsen [mailto:claus.ib...@gmail.com]
>> Sent: Wednesday, November 16, 2016 9:59 AM
>> To: users@camel.apache.org
>> Subject: Re: Seeking to understand properties
>>
>> Hi
>>
>> context().getProperty("dataFile");
>>
>> is not property placeholders. Its just generic key/value pairs on
>> CamelContext. See the javadoc of the API.
>>
>> For property placeholders take a look at http://camel.apache.org/using-
>> propertyplaceholder.html
>>
>> On Tue, Nov 15, 2016 at 11:58 PM, Steve Huston <shus...@riverace.com>
>> wrote:
>> > I am struggling to understand something I fear is very basic, but I just
>> > don't
>> see it. Hoping someone can help me understand this.
>> >
>> > Properties... I can use them in route definitions, but I don't seem to be
>> > able
>> to obtain their values in regular Java code.
>> >
>> > Example (using Camel 2.16.3):
>> >
>> > I have a route builder:
>> >
>> > public class MyRouteBuilder extends RouteBuilder {
>> > public void configure() {
>> > from("file:{{dataFile}}?noop=true")
>> > .to("file:target/messages/others");
>> > }
>> > }
>> >
>> > And a unit test:
>> >
>> > @RunWith(JUnit4.class)
>> > public class UnitTest extends CamelTestSupport {
>> >
>> > private String fileName;
>> >
>> > @Override
>> > protected RouteBuilder createRouteBuilder() {
>> > return new MyRouteBuilder();
>> > }
>> >
>> > @Override
>> > public Boolean ignoreMissingLocationWithPropertiesComponent() {
>> > return true;
>> > }
>> >
>> > @Override
>> > protected Properties
>> useOverridePropertiesWithPropertiesComponent() {
>> > Properties override = new Properties();
>> > override.put("dataFile", "overridden-file");
>> > return override;
>> > }
>> >
>> > @Test
>> > public void testPropertyGetting() throws Exception {
>> > fileName = context().getProperty("dataFile");
>> > assert(fileName != null);
>> > }
>> > }
>> >
>> > When I run this test, the output includes:
>> >
>> > INFO Route: route1 started and consuming from:
>> > Endpoint[file://overridden-file?noop=true]
>> >
>> > So the override property set above did get filled into the route
>> > definition.
>> > However, when I try to get the property in the testPropertyGetting()
>> > method, the value is null
>> >
>> > Why???
>> >
>> > -Steve
>> >
>>
>>
>>
>> --
>> Claus Ibsen
>> -----------------
>> http://davsclaus.com @davsclaus
>> Camel in Action 2: https://www.manning.com/ibsen2
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
