package org.springframework.roo.classpath.operations;
import java.util.List;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;
import org.springframework.roo.shell.Completion;
import org.springframework.roo.shell.Converter;
import org.springframework.roo.shell.MethodTarget;
/**
* {@link Converter} for {@link String} that understands the "topics" option
* context.
*
* @author Ben Alex
* @since 1.1
*/
@Service
@Component
public class HintConverter implements Converter<String> {
@Reference private HintOperations hintOperations;
public String convertFromText(final String value,
final Class<?> requiredType, final String optionContext) {
return value;
}
public boolean getAllPossibleValues(final List<Completion> completions,
final Class<?> requiredType, final String existingData,
final String optionContext, final MethodTarget target) {
for (final String currentTopic : hintOperations.getCurrentTopics()) {
completions.add(new Completion(currentTopic));
}
return false;
}
public boolean supports(final Class<?> requiredType,
final String optionContext) {
return String.class.isAssignableFrom(requiredType)
&& optionContext.contains("topics");
}
}