/*
* Copyright 2012 Ryuji Yamashita
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package facebook4j.internal.json;
import facebook4j.FacebookException;
import facebook4j.Paging;
import facebook4j.internal.org.json.JSONException;
import facebook4j.internal.org.json.JSONObject;
import java.net.URL;
import static facebook4j.internal.util.z_F4JInternalParseUtil.*;
/**
* @author Ryuji Yamashita - roundrop at gmail.com
*/
/*package*/ final class PagingJSONImpl<T> implements Paging<T>, java.io.Serializable {
private static final long serialVersionUID = 4741821984775700187L;
private final Class<?> jsonObjectType;
private final Cursors cursors;
private final URL previous;
private final URL next;
/*pakcage*/PagingJSONImpl(JSONObject json, Class<?> type) throws FacebookException {
this.jsonObjectType = type;
try {
if (!json.isNull("cursors")) {
cursors = new CursorsJSONImpl(json.getJSONObject("cursors"));
} else {
cursors = null;
}
previous = getURL("previous", json);
next = getURL("next", json);
} catch (JSONException jsone) {
throw new FacebookException(jsone);
}
}
public Class<?> getJSONObjectType() {
return jsonObjectType;
}
public URL getPrevious() {
return previous;
}
public URL getNext() {
return next;
}
public Cursors getCursors() {
return cursors;
}
@Override
public String toString() {
return "PagingJSONImpl [previous=" + previous + ", next=" + next
+ ", jsonObjectType=" + jsonObjectType + "]";
}
private final class CursorsJSONImpl implements Cursors, java.io.Serializable {
private static final long serialVersionUID = -4827220838408801570L;
private final String after;
private final String before;
CursorsJSONImpl(JSONObject json) throws FacebookException {
after = getRawString("after", json);
before = getRawString("before", json);
}
public String getAfter() {
return after;
}
public String getBefore() {
return before;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof PagingJSONImpl.CursorsJSONImpl)) return false;
CursorsJSONImpl that = (CursorsJSONImpl) o;
if (after != null ? !after.equals(that.after) : that.after != null) return false;
if (before != null ? !before.equals(that.before) : that.before != null) return false;
return true;
}
@Override
public int hashCode() {
int result = after != null ? after.hashCode() : 0;
result = 31 * result + (before != null ? before.hashCode() : 0);
return result;
}
@Override
public String toString() {
return "CursorsJSONImpl{" +
"after='" + after + '\'' +
", before='" + before + '\'' +
'}';
}
}
}