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# deserialization for event, coursearea, venue

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This commit is contained in:
Lukas Niemeier
2013-01-16 18:04:52 +01:00
parent d7bd59a61c
commit f74af14730
9 changed files with 186 additions and 5 deletions
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.gitignore
+1
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@@ -11,3 +11,4 @@ sailing_debug0*
/mobile\com.sap.sailing.racecommittee.glue\bin/com.sap.sailing.racecommittee.glue.jar
/mobile\com.sap.sailing.racecommittee.glue\bin/jarlist.cache
/mobile/com.sap.sailing.racecommittee.glue/bin/com.sap.sailing.racecommittee.glue.jar
/java/.settings/org.eclipse.jdt.core.prefs
java/com.sap.sailing.domain/src/com/sap/sailing/domain/base/impl/EventImpl.java
+1 -1
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@@ -36,7 +36,7 @@ public class EventImpl implements Event {
this.regattas = new HashSet<Regatta>();
}
@Override
@Override
public Serializable getId() {
return id;
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/CourseAreaJsonDeserializer.java
+27
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@@ -0,0 +1,27 @@
package com.sap.sailing.server.gateway.deserialization;
import org.json.simple.JSONObject;
import com.sap.sailing.domain.base.CourseArea;
import com.sap.sailing.domain.base.impl.CourseAreaImpl;
import com.sap.sailing.server.gateway.serialization.CourseAreaJsonSerializer;
public class CourseAreaJsonDeserializer implements JsonDeserializer<CourseArea> {
@Override
public CourseArea deserialize(JSONObject object)
throws JsonDeserializationException {
String name = object.get(CourseAreaJsonSerializer.FIELD_NAME).toString();
CourseArea courseArea = new CourseAreaImpl(name);
/*JSONArray racesArray = Helpers.getNestedArraySafe(object, CourseAreaJsonSerializer.FIELD_RACES);
for (Object element : racesArray) {
/// TODO: add races to courseArea...
System.out.println(element.toString());
}*/
return courseArea;
}
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/EventJsonDeserializer.java
+46
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@@ -0,0 +1,46 @@
package com.sap.sailing.server.gateway.deserialization;
import java.util.UUID;
import org.json.simple.JSONObject;
import com.sap.sailing.domain.base.Event;
import com.sap.sailing.domain.base.Venue;
import com.sap.sailing.domain.base.impl.EventImpl;
import com.sap.sailing.server.gateway.serialization.EventJsonSerializer;
public class EventJsonDeserializer implements JsonDeserializer<Event> {
private JsonDeserializer<Venue> venueDeserializer;
public EventJsonDeserializer(JsonDeserializer<Venue> venueDeserializer) {
this.venueDeserializer = venueDeserializer;
}
public Event deserialize(JSONObject object) throws JsonDeserializationException {
String id = object.get(EventJsonSerializer.FIELD_ID).toString();
String name = object.get(EventJsonSerializer.FIELD_NAME).toString();
String publicationUrl = object.get(EventJsonSerializer.FIELD_PUBLICATION_URL).toString();
UUID uuid = null;
try {
uuid = UUID.fromString(id);
} catch (IllegalArgumentException iae) {
throw new JsonDeserializationException(
String.format("Field %s with %s couldn't be parsed as UUID.", EventJsonSerializer.FIELD_ID, id),
iae);
}
JSONObject venueObject = Helpers.getNestedObjectSafe(
object,
EventJsonSerializer.FIELD_VENUE);
Venue venue = venueDeserializer.deserialize(venueObject);
return new EventImpl(
name,
venue,
publicationUrl,
true,
uuid);
}
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/Helpers.java
+39
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@@ -0,0 +1,39 @@
package com.sap.sailing.server.gateway.deserialization;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
public class Helpers {
public static JSONObject toJSONObjectSafe(Object object)
throws JsonDeserializationException {
if (object instanceof JSONObject) {
return (JSONObject) object;
}
throw new JsonDeserializationException(
String.format("Expected a JSONObject, got %s.", object.getClass().getName()));
}
public static JSONObject getNestedObjectSafe(JSONObject parent, String fieldName)
throws JsonDeserializationException {
Object childObject = parent.get(fieldName);
if (!(childObject instanceof JSONObject)) {
throw new JsonDeserializationException(
String.format("Field %s with %s wasn't a nested JSON object.",
fieldName, childObject.toString()));
}
return (JSONObject) childObject;
}
public static JSONArray getNestedArraySafe(JSONObject parent, String fieldName)
throws JsonDeserializationException {
Object childObject = parent.get(fieldName);
if (!(childObject instanceof JSONArray)) {
throw new JsonDeserializationException(
String.format("Field %s with %s wasn't a nested JSON array.",
fieldName, childObject.toString()));
}
return (JSONArray) childObject;
}
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/JsonDeserializationException.java
+25
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@@ -0,0 +1,25 @@
package com.sap.sailing.server.gateway.deserialization;
import java.io.IOException;
public class JsonDeserializationException extends IOException {
private static final long serialVersionUID = -6725762788023063937L;
public JsonDeserializationException() {
super();
}
public JsonDeserializationException(String message, Throwable innerException) {
super(message, innerException);
}
public JsonDeserializationException(String message) {
super(message);
}
public JsonDeserializationException(Throwable innerException) {
super(innerException);
}
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/JsonDeserializer.java
+9
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@@ -0,0 +1,9 @@
package com.sap.sailing.server.gateway.deserialization;
import org.json.simple.JSONObject;
public interface JsonDeserializer<T> {
T deserialize(JSONObject object) throws JsonDeserializationException;
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/deserialization/VenueJsonDeserializer.java
+36
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@@ -0,0 +1,36 @@
package com.sap.sailing.server.gateway.deserialization;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import com.sap.sailing.domain.base.CourseArea;
import com.sap.sailing.domain.base.Venue;
import com.sap.sailing.domain.base.impl.VenueImpl;
import com.sap.sailing.server.gateway.serialization.VenueJsonSerializer;
public class VenueJsonDeserializer implements JsonDeserializer<Venue> {
private JsonDeserializer<CourseArea> courseAreaDeserializer;
public VenueJsonDeserializer(JsonDeserializer<CourseArea> courseAreaDeserializer) {
this.courseAreaDeserializer = courseAreaDeserializer;
}
@Override
public Venue deserialize(JSONObject object)
throws JsonDeserializationException {
String name = object.get(VenueJsonSerializer.FIELD_NAME).toString();
Venue venue = new VenueImpl(name);
JSONArray courseAreaArray = Helpers.getNestedArraySafe(
object,
VenueJsonSerializer.FIELD_COURSE_AREAS);
for (Object element : courseAreaArray) {
JSONObject courseAreaObject = Helpers.toJSONObjectSafe(element);
venue.addCourseArea(courseAreaDeserializer.deserialize(courseAreaObject));
}
return venue;
}
}
java/com.sap.sailing.server.gateway.serialization/src/com/sap/sailing/server/gateway/serialization/CourseAreaJsonSerializer.java
+2 -4
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@@ -1,10 +1,8 @@
package com.sap.sailing.server.gateway.serialization;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import com.sap.sailing.domain.base.CourseArea;
import com.sap.sailing.domain.base.RaceDefinition;
public class CourseAreaJsonSerializer implements JsonSerializer<CourseArea> {
public static final String FIELD_NAME = "name";
@@ -15,12 +13,12 @@ public class CourseAreaJsonSerializer implements JsonSerializer<CourseArea> {
JSONObject result = new JSONObject();
result.put(FIELD_NAME, object.getName());
JSONArray races = new JSONArray();
/*JSONArray races = new JSONArray();
for (RaceDefinition race : object.getRaces())
{
races.add(race.getId().toString());
}
result.put(FIELD_RACES, races);
result.put(FIELD_RACES, races);*/
return result;
}