PackagingProviderConverter.java

package org.springframework.roo.converters;

import java.util.List;

import org.apache.commons.lang3.Validate;
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.project.packaging.PackagingProvider;
import org.springframework.roo.project.packaging.PackagingProviderRegistry;
import org.springframework.roo.shell.Completion;
import org.springframework.roo.shell.Converter;
import org.springframework.roo.shell.MethodTarget;

/**
 * A {@link Converter} for {@link PackagingProvider}s
 * 
 * @author Andrew Swan
 * @since 1.2.0
 */
@Component
@Service
public class PackagingProviderConverter implements Converter<PackagingProvider> {

  @Reference
  PackagingProviderRegistry packagingProviderRegistry;

  public PackagingProvider convertFromText(final String value, final Class<?> targetType,
      final String optionContext) {
    final PackagingProvider packagingProvider =
        packagingProviderRegistry.getPackagingProvider(value);
    Validate.notNull(packagingProvider, "Unsupported packaging id '%s'", value);
    return packagingProvider;
  }

  public boolean getAllPossibleValues(final List<Completion> completions,
      final Class<?> targetType, final String existingData, final String optionContext,
      final MethodTarget target) {
    for (final PackagingProvider packagingProvider : packagingProviderRegistry
        .getAllPackagingProviders()) {
      completions.add(new Completion(packagingProvider.getId().toUpperCase()));
    }
    return true;
  }

  public boolean supports(final Class<?> type, final String optionContext) {
    return PackagingProvider.class.isAssignableFrom(type);
  }
}