[#IDEADEV-13534] Support for "Resource" properties / "classpath:..." syntax

IDEA: Development

Support for "Resource" properties / "classpath:..." syntax

Created: 20 Jan 07 01:02 Updated: 28 Feb 07 13:08

Component/s:

J2EE.Spring

Fix Version/s:

Selena 6733

Original Estimate:

Unknown

Remaining Estimate:

Unknown

Time Spent:

Unknown

Build:	6,656
Fixed in build:	6,732
Severity:	High

Description

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For an introduction, see http://static.springframework.org/spring/docs/2.0.x/reference/resources.html
In particular, check section 4.6: Resources as dependencies

When a property/constructor argument is of type Resource, the string value assigned should be treated in a special way:
A value "classpath:some/resource/path/myTemplate.txt" should resolve to a project classpath resource.

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Taras Tielkes - 20 Jan 07 01:07

IDEA should also recognize Resource[] type. For instance, the project I have open right now has a bean that takes Resource[] as a constructor argument, and has a context declaration similar to:

...
    <constructor-arg>
      <list>
        <value>classpath:/definitions/small.xml</value>
        <value>classpath:/definitions/expanded.xml</value>
      </list>
    </constructor-arg>
...

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Taras Tielkes - 26 Jan 07 21:39

Apart from full resolving (which would be very nice), injection of Resource properties is actually a "good code red" issue at the moment.

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Dmitry Avdeev - 30 Jan 07 17:11

What code is red in your example?

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Taras Tielkes - 30 Jan 07 17:27

Dmitry, here is minimal "good code red" sample (using #6667)

import org.springframework.core.io.Resource;

public class FooBar {
    public FooBar(Resource resource) {}
}

...
  <bean id="fooBar" class="foo.test.FooBar">
    <constructor-arg value="classpath:/test/config.abc"/>
  </bean>
...

Bean definition is marked with "No matching constructor found is class FooBar" warning. (Because IDEA thinks I want to assign java.lang.String type to org.springframework.core.io.Resource type?)

Spring by default registers PropertyEditors for Resource and Resource[] types to use during context parsing. These take care of conversion between String/String[] and Resource/Resource[].