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/*******************************************************************************
* Copyright (c) 2011 GitHub Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Jason Tsay (GitHub Inc.) - initial API and implementation
*******************************************************************************/
package org.eclipse.egit.github.core.client;
import com.google.gson.InstanceCreator;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import java.lang.reflect.Type;
import org.eclipse.egit.github.core.event.CommitCommentPayload;
import org.eclipse.egit.github.core.event.CreatePayload;
import org.eclipse.egit.github.core.event.DeletePayload;
import org.eclipse.egit.github.core.event.DownloadPayload;
import org.eclipse.egit.github.core.event.Event;
import org.eclipse.egit.github.core.event.EventPayload;
import org.eclipse.egit.github.core.event.FollowPayload;
import org.eclipse.egit.github.core.event.ForkApplyPayload;
import org.eclipse.egit.github.core.event.ForkPayload;
import org.eclipse.egit.github.core.event.GistPayload;
import org.eclipse.egit.github.core.event.GollumPayload;
import org.eclipse.egit.github.core.event.IssueCommentPayload;
import org.eclipse.egit.github.core.event.IssuesPayload;
import org.eclipse.egit.github.core.event.MemberPayload;
import org.eclipse.egit.github.core.event.PublicPayload;
import org.eclipse.egit.github.core.event.PullRequestPayload;
import org.eclipse.egit.github.core.event.PushPayload;
import org.eclipse.egit.github.core.event.TeamAddPayload;
import org.eclipse.egit.github.core.event.WatchPayload;
/**
* Formats an event's payload with the appropriate class given a certain event
* type
*/
public class EventFormatter {
private class PayloadDeserializer implements JsonDeserializer<EventPayload> {
public EventPayload deserialize(JsonElement json, Type typeOfT,
JsonDeserializationContext context) throws JsonParseException {
String type = event.get().getType();
Class<? extends EventPayload> clazz = EventPayload.class;
if ("CommitCommentEvent".equals(type))
clazz = CommitCommentPayload.class;
else if ("CreateEvent".equals(type))
clazz = CreatePayload.class;
else if ("DeleteEvent".equals(type))
clazz = DeletePayload.class;
else if ("DownloadEvent".equals(type))
clazz = DownloadPayload.class;
else if ("FollowEvent".equals(type))
clazz = FollowPayload.class;
else if ("ForkEvent".equals(type))
clazz = ForkPayload.class;
else if ("ForkApplyEvent".equals(type))
clazz = ForkApplyPayload.class;
else if ("GistEvent".equals(type))
clazz = GistPayload.class;
else if ("GollumEvent".equals(type))
clazz = GollumPayload.class;
else if ("IssueCommentEvent".equals(type))
clazz = IssueCommentPayload.class;
else if ("IssuesEvent".equals(type))
clazz = IssuesPayload.class;
else if ("MemberEvent".equals(type))
clazz = MemberPayload.class;
else if ("PublicEvent".equals(type))
clazz = PublicPayload.class;
else if ("PullRequestEvent".equals(type))
clazz = PullRequestPayload.class;
else if ("PushEvent".equals(type))
clazz = PushPayload.class;
else if ("TeamAddEvent".equals(type))
clazz = TeamAddPayload.class;
else if ("WatchEvent".equals(type))
clazz = WatchPayload.class;
// payload not recognized
if (clazz == EventPayload.class)
return new EventPayload();
return context.deserialize(json, clazz);
}
}
private class EventCreator implements InstanceCreator<Event> {
public Event createInstance(Type type) {
final Event event = new Event();
EventFormatter.this.event.set(event);
return event;
}
}
private final ThreadLocal<Event> event = new ThreadLocal<Event>();
private final PayloadDeserializer payloadDeserializer = new PayloadDeserializer();
private final EventCreator eventCreator = new EventCreator();
/**
* Get deserializer for {@link EventPayload} objects
*
* @return deserializer
*/
public JsonDeserializer<EventPayload> getPayloadDeserializer() {
return payloadDeserializer;
}
/**
* Get instance creator for {@link Event} objects
*
* @return instance creator
*/
public InstanceCreator<Event> getEventCreator() {
return eventCreator;
}
}
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