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package org.glassfish.jersey.server.internal.inject;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.List;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.PathSegment;
import javax.inject.Inject;
import javax.inject.Singleton;
import org.glassfish.jersey.server.ParamException.PathParamException;
import org.glassfish.jersey.server.model.Parameter;
import org.glassfish.hk2.api.ServiceLocator;
/**
* {@link PathParam @PathParam} injection value factory provider.
*
* @author Paul Sandoz
*/
@Singleton
final class PathParamValueFactoryProvider extends AbstractValueFactoryProvider {
/**
* {@link PathParam @PathParam} injection resolver.
*/
@Singleton
static final class InjectionResolver extends ParamInjectionResolver<PathParam> {
/**
* Create new {@link PathParam @PathParam} injection resolver.
*/
public InjectionResolver() {
super(PathParamValueFactoryProvider.class);
}
}
private static final class PathParamValueFactory extends AbstractContainerRequestValueFactory<Object> {
private final MultivaluedParameterExtractor<?> extractor;
private final boolean decode;
PathParamValueFactory(MultivaluedParameterExtractor<?> extractor, boolean decode) {
this.extractor = extractor;
this.decode = decode;
}
@Override
public Object provide() {
try {
return extractor.extract(getContainerRequest().getUriInfo().getPathParameters(decode));
} catch (ExtractorException e) {
throw new PathParamException(e.getCause(), extractor.getName(), extractor.getDefaultValueString());
}
}
}
private static final class PathParamPathSegmentValueFactory extends AbstractContainerRequestValueFactory<PathSegment> {
private final String name;
private final boolean decode;
PathParamPathSegmentValueFactory(String name, boolean decode) {
this.name = name;
this.decode = decode;
}
@Override
public PathSegment provide() {
List<PathSegment> ps = getContainerRequest().getUriInfo().getPathSegments(name, decode);
if (ps.isEmpty()) {
return null;
}
return ps.get(ps.size() - 1);
}
}
private static final class PathParamListPathSegmentValueFactory extends AbstractContainerRequestValueFactory<List<PathSegment>> {
private final String name;
private final boolean decode;
PathParamListPathSegmentValueFactory(String name, boolean decode) {
this.name = name;
this.decode = decode;
}
@Override
public List<PathSegment> provide() {
return getContainerRequest().getUriInfo().getPathSegments(name, decode);
}
}
/**
* Injection constructor.
*
* @param mpep multivalued map parameter extractor provider.
* @param locator HK2 service locator.
*/
@Inject
public PathParamValueFactoryProvider(MultivaluedParameterExtractorProvider mpep, ServiceLocator locator) {
super(mpep, locator, Parameter.Source.PATH);
}
@Override
public AbstractContainerRequestValueFactory<?> createValueFactory(Parameter parameter) {
String parameterName = parameter.getSourceName();
if (parameterName == null || parameterName.length() == 0) {
// Invalid URI parameter name
return null;
}
final Class<?> rawParameterType = parameter.getRawType();
if (rawParameterType == PathSegment.class) {
return new PathParamPathSegmentValueFactory(parameterName, !parameter.isEncoded());
} else if (rawParameterType == List.class && parameter.getType() instanceof ParameterizedType) {
ParameterizedType pt = (ParameterizedType) parameter.getType();
Type[] targs = pt.getActualTypeArguments();
if (targs.length == 1 && targs[0] == PathSegment.class) {
return new PathParamListPathSegmentValueFactory(
parameterName, !parameter.isEncoded());
}
}
MultivaluedParameterExtractor<?> e = get(parameter);
if (e == null) {
return null;
}
return new PathParamValueFactory(e, !parameter.isEncoded());
}
}