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package org.glassfish.jersey.server.internal.inject;
import java.util.List;
import java.util.function.Function;
import javax.ws.rs.MatrixParam;
import javax.ws.rs.core.PathSegment;
import javax.inject.Provider;
import javax.inject.Singleton;
import org.glassfish.jersey.internal.inject.ExtractorException;
import org.glassfish.jersey.server.ContainerRequest;
import org.glassfish.jersey.server.ParamException;
import org.glassfish.jersey.server.model.Parameter;
/**
* Value supplier provider supporting the {@link MatrixParam @MatrixParam} injection annotation.
*
* @author Paul Sandoz
* @author Marek Potociar (marek.potociar at oracle.com)
*/
@Singleton
final class MatrixParamValueParamProvider extends AbstractValueParamProvider {
/**
* Injection constructor.
*
* @param mpep multivalued map parameter extractor provider.
*/
public MatrixParamValueParamProvider(Provider mpep) {
super(mpep, Parameter.Source.MATRIX);
}
@Override
public Function createValueProvider(Parameter parameter) {
String parameterName = parameter.getSourceName();
if (parameterName == null || parameterName.length() == 0) {
// Invalid header parameter name
return null;
}
MultivaluedParameterExtractor e = get(parameter);
if (e == null) {
return null;
}
return new MatrixParamValueProvider(e, !parameter.isEncoded());
}
private static final class MatrixParamValueProvider implements Function {
private final MultivaluedParameterExtractor extractor;
private final boolean decode;
MatrixParamValueProvider(MultivaluedParameterExtractor extractor, boolean decode) {
this.extractor = extractor;
this.decode = decode;
}
@Override
public Object apply(ContainerRequest containerRequest) {
List l = containerRequest.getUriInfo().getPathSegments(decode);
PathSegment p = l.get(l.size() - 1);
try {
return extractor.extract(p.getMatrixParameters());
} catch (ExtractorException e) {
throw new ParamException.MatrixParamException(e.getCause(),
extractor.getName(), extractor.getDefaultValueString());
}
}
}
}