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package org.glassfish.jersey.gson;
import com.google.gson.GsonBuilder;
import org.glassfish.jersey.CommonProperties;
import org.glassfish.jersey.gson.internal.GsonProvider;
import org.glassfish.jersey.internal.InternalProperties;
import org.glassfish.jersey.internal.util.PropertiesHelper;
import javax.ws.rs.core.Configuration;
import javax.ws.rs.core.Feature;
import javax.ws.rs.core.FeatureContext;
import javax.ws.rs.ext.ContextResolver;
/**
* Feature used to register MOXy JSON providers.
*
* @author Martin Mares (martin.mares at oracle.com)
*/
public class GsonFeature implements Feature {
private static final String JSON_FEATURE = GsonFeature.class.getSimpleName();
private final GsonBuilder gsonBuilder;
public GsonFeature(GsonBuilder gsonBuilder) {
this.gsonBuilder = gsonBuilder;
}
public GsonFeature() {
this(null);
}
@Override
public boolean configure(final FeatureContext context) {
final Configuration config = context.getConfiguration();
final String jsonFeature = CommonProperties.getValue(config.getProperties(),
config.getRuntimeType(),
InternalProperties.JSON_FEATURE,
JSON_FEATURE,
String.class);
// Other JSON providers registered.
if (!JSON_FEATURE.equalsIgnoreCase(jsonFeature)) {
return false;
}
// Disable other JSON providers.
String propName = PropertiesHelper.getPropertyNameForRuntime(InternalProperties.JSON_FEATURE,
config.getRuntimeType());
context.property(propName, JSON_FEATURE);
// Register
context.register(GsonProvider.class);
if (gsonBuilder != null) {
context.register(new ContextResolver<GsonBuilder>() {
@Override
public GsonBuilder getContext(Class type) {
return gsonBuilder;
}
});
}
return true;
}
}