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Tip

If you try to match a pattern on an exact endpoint uri, then mind that URI options ordering may influence, and hence its best to match by wildcard. For example:

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mockEndpointsAndSkip("activemq:queue:foo?*")

To match the foo queue and disregard any options.

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	java
title	Route
	java


from("direct:start")
    .to("mock:foo")
    .to("mock:bar").id("bar")
    .to("mock:result");

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Selector	Description
`selectFirst`	Will only select the first matched node.
`selectLast`	Will only select the last matched node.
`selectIndex(index)`	Will only select the n'th matched node. The index is zero-based.
`selectRange(from, to)`	Will only select the matches node within the given range by index (both inclusive). The index is zero-based.
`maxDeep(to)`	Camel 2.14.2/2.15: To limit the selection to at most N level deep in the Camel route tree. The first level is starting from number 1. So number 2 is the children of the 1st level nodes.

For example to remove the first .to node in route you can do as follows:

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context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() {
    @Override
    public void configure() throws Exception {
        // only remove the first to node in the route
        weaveByType(ToDefinition.class).selectFirst().remove();
    }
});

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For example if you want to send a message to a mock:input endpoint you can do as follows:

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context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() {
    @Override
    public void configure() throws Exception {
        // send the incoming message to mock:input
        weaveAddFirst().to("mock:input");
    }
});

Likewise if you want to easily send a message to a mock:output endpoint you can do as follows:

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context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() {
    @Override
    public void configure() throws Exception {
        // send the outgoing message to mock:output
        weaveAddLast().to("mock:output");
    }
});

You can of course combine those in the same advice with:

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context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() {
    @Override
    public void configure() throws Exception {
        weaveAddFirst().to("mock:input");
        weaveAddLast().to("mock:output");
    }
});

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You may have routes which consumes messages from endpoints which you want to substitute with another endpoint for easier unit testing. For example a JMS endpoint could be replaced with a SEDA or Direct for unit testing a route, as shown below where we replace the input of the route to a "seda:foo" endpoint:

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context.getRouteDefinitions().get(0).adviceWith(context, new AdviceWithRouteBuilder() { @Override public void configure() throws Exception { replaceFromWith("seda:foo"); } });

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