| package net.onrc.onos.core.topology.web.serializers; |
| |
| import java.io.IOException; |
| import java.util.Map.Entry; |
| |
| import net.onrc.onos.core.topology.MastershipEvent; |
| import net.onrc.onos.core.topology.TopologyElement; |
| |
| import org.codehaus.jackson.JsonGenerator; |
| import org.codehaus.jackson.map.SerializerProvider; |
| import org.codehaus.jackson.map.ser.std.SerializerBase; |
| |
| /** |
| * JSON serializer for MastershipEvent objects. |
| */ |
| public class MastershipEventSerializer extends SerializerBase<MastershipEvent> { |
| /** |
| * Default constructor. |
| */ |
| public MastershipEventSerializer() { |
| super(MastershipEvent.class); |
| } |
| |
| /** |
| * Serializes a MastershipEvent object in JSON. |
| * |
| * @param mastershipEvent the MastershipEvent that is being converted to |
| * JSON |
| * @param jsonGenerator generator to place the serialized JSON into |
| * @param serializerProvider unused but required for method override |
| * @throws IOException if the JSON serialization process fails |
| */ |
| @Override |
| public void serialize(final MastershipEvent mastershipEvent, |
| final JsonGenerator jsonGenerator, |
| final SerializerProvider serializerProvider) |
| throws IOException { |
| |
| // |
| // TODO: For now, the JSON format of the serialized output should |
| // be same as the JSON format of the corresponding class Mastership |
| // (if such class exists). |
| // In the future, we will use a single serializer. |
| // |
| |
| jsonGenerator.writeStartObject(); |
| jsonGenerator.writeStringField(TopologyElement.TYPE, mastershipEvent.getType()); |
| jsonGenerator.writeStringField("dpid", |
| mastershipEvent.getDpid().toString()); |
| jsonGenerator.writeStringField("onosInstanceId", |
| mastershipEvent.getOnosInstanceId().toString()); |
| jsonGenerator.writeStringField("role", |
| mastershipEvent.getRole().name()); |
| jsonGenerator.writeObjectFieldStart("stringAttributes"); |
| for (Entry<String, String> entry : mastershipEvent.getAllStringAttributes().entrySet()) { |
| jsonGenerator.writeStringField(entry.getKey(), entry.getValue()); |
| } |
| jsonGenerator.writeEndObject(); // stringAttributes |
| jsonGenerator.writeEndObject(); |
| } |
| } |