package io.openliberty.guides.inventory.client; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.lang.annotation.Annotation; import java.lang.reflect.Type; import java.util.Properties; import javax.json.Json; import javax.json.JsonObject; import javax.json.JsonReader; import javax.json.JsonString; import javax.json.JsonValue; import javax.ws.rs.WebApplicationException; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.MultivaluedMap; import javax.ws.rs.ext.MessageBodyReader; import javax.ws.rs.ext.MessageBodyWriter; public class PropertiesReader implements MessageBodyReader<Properties>, MessageBodyWriter<Properties> { @Override public boolean isReadable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) { return true; } @Override public Properties readFrom(Class<Properties> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, String> httpHeaders, InputStream entityStream) throws IOException, WebApplicationException { JsonReader jr = Json.createReader(entityStream); JsonObject json = jr.readObject(); Properties retVal = new Properties(); json.keySet().forEach(key -> { JsonValue value = json.get(key); if (!JsonValue.NULL.equals(value)) { if (value.getValueType() != JsonValue.ValueType.STRING) { throw new IllegalArgumentException( "Non-String JSON prop value found in payload. Sample data is more than this sample can deal with. It's not intended to handle any payload."); } JsonString jstr = (JsonString) value; retVal.setProperty(key, jstr.getString()); } }); return retVal; } @Override public boolean isWriteable(Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType) { // TODO Auto-generated method stub return true; } @Override public void writeTo(Properties t, Class<?> type, Type genericType, Annotation[] annotations, MediaType mediaType, MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) throws IOException, WebApplicationException { // TODO Auto-generated method stub } }