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/*
 * 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.Comment;
import facebook4j.FacebookException;
import facebook4j.IdNameEntity;
import facebook4j.InboxResponseList;
import facebook4j.Message;
import facebook4j.PagableList;
import facebook4j.ResponseList;
import facebook4j.conf.Configuration;
import facebook4j.internal.http.HttpResponse;
import facebook4j.internal.org.json.JSONArray;
import facebook4j.internal.org.json.JSONException;
import facebook4j.internal.org.json.JSONObject;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.List;

import static facebook4j.internal.util.z_F4JInternalParseUtil.*;

/**
 * @author Ryuji Yamashita - roundrop at gmail.com
 */
/*package*/ final class MessageJSONImpl extends FacebookResponseImpl implements Message, java.io.Serializable {
    private static final long serialVersionUID = -2666008917993827020L;

    private String id;
    private IdNameEntity from;
    private List to;
    private PagableList attachments;
    private String message;
    private Date createdTime;
    private Date updatedTime;
    private PagableList comments;
    private Integer unread;
    private Integer unseen;

    /*package*/MessageJSONImpl(HttpResponse res, Configuration conf) throws FacebookException {
        super(res);
        JSONObject json = res.asJSONObject();
        init(json);
        if (conf.isJSONStoreEnabled()) {
            DataObjectFactoryUtil.clearThreadLocalMap();
            DataObjectFactoryUtil.registerJSONObject(this, json);
        }
    }

    /*package*/MessageJSONImpl(JSONObject json) throws FacebookException {
        super();
        init(json);
    }

    private void init(JSONObject json) throws FacebookException {
        try {
            id = getRawString("id", json);
            if (!json.isNull("from")) {
                JSONObject fromJSONObject = json.getJSONObject("from");
                from = new IdNameEntityJSONImpl(fromJSONObject);
            }
            if (!json.isNull("to")) {
                JSONObject toJSONObject = json.getJSONObject("to");
                JSONArray toJSONArray = toJSONObject.getJSONArray("data");
                to = new ArrayList();
                for (int i = 0; i < toJSONArray.length(); i++) {
                    to.add(new IdNameEntityJSONImpl(toJSONArray.getJSONObject(i)));
                }
            } else {
                to = Collections.emptyList();
            }
            message = getRawString("message", json);
            createdTime = getISO8601Datetime("created_time", json);
            updatedTime = getISO8601Datetime("updated_time", json);
            if (!json.isNull("comments")) {
                JSONObject commentsJSONObject = json.getJSONObject("comments");
                if (!commentsJSONObject.isNull("data")) {
                    JSONArray list = commentsJSONObject.getJSONArray("data");
                    final int size = list.length();
                    comments = new PagableListImpl(size, commentsJSONObject);
                    for (int i = 0; i < size; i++) {
                        CommentJSONImpl comment = new CommentJSONImpl(list.getJSONObject(i));
                        comments.add(comment);
                    }
                } else {
                    comments = new PagableListImpl(1, commentsJSONObject);
                }
            } else {
                comments = new PagableListImpl(0);
            }
            if (!json.isNull("attachments")) {
                JSONObject attachmentsJSONObject = json.getJSONObject("attachments");
                if (!attachmentsJSONObject.isNull("data")) {
                    JSONArray list = attachmentsJSONObject.getJSONArray("data");
                    final int size = list.length();
                    attachments = new PagableListImpl(size, attachmentsJSONObject);
                    for (int i = 0; i < size; i++) {
                        AttachmentJSONImpl attachment = new AttachmentJSONImpl(list.getJSONObject(i));
                        attachments.add(attachment);
                    }
                } else {
                    attachments = new PagableListImpl(1, attachmentsJSONObject);
                }
            } else {
                attachments = new PagableListImpl(0);
            }
            if (!json.isNull("unread")) {
                unread = getPrimitiveInt("unread", json);
            }
            if (!json.isNull("unseen")) {
                unseen = getPrimitiveInt("unseen", json);
            }
        } catch (JSONException jsone) {
            throw new FacebookException(jsone.getMessage(), jsone);
        }
    }

    public String getId() {
        return id;
    }
    public IdNameEntity getFrom() {
        return from;
    }
    public List getTo() {
        return to;
    }
    public PagableList getAttachments() {
        return attachments;
    }
    public String getMessage() {
        return message;
    }
    public Date getCreatedTime() {
        return createdTime;
    }
    public Date getUpdatedTime() {
        return updatedTime;
    }
    public PagableList getComments() {
        return comments;
    }
    public Integer getUnread() {
        return unread;
    }

    public Integer getUnseen() {
        return unseen;
    }

    /*package*/
    static ResponseList createMessageList(HttpResponse res, Configuration conf) throws FacebookException {
        try {
            if (conf.isJSONStoreEnabled()) {
                DataObjectFactoryUtil.clearThreadLocalMap();
            }
            JSONObject json = res.asJSONObject();
            JSONArray list = json.getJSONArray("data");
            final int size = list.length();
            ResponseList messages = new ResponseListImpl(size, json);
            for (int i = 0; i < size; i++) {
                JSONObject messageJSONObject = list.getJSONObject(i);
                Message message = new MessageJSONImpl(messageJSONObject);
                if (conf.isJSONStoreEnabled()) {
                    DataObjectFactoryUtil.registerJSONObject(message, messageJSONObject);
                }
                messages.add(message);
            }
            if (conf.isJSONStoreEnabled()) {
                DataObjectFactoryUtil.registerJSONObject(messages, list);
            }
            return messages;
        } catch (JSONException jsone) {
            throw new FacebookException(jsone);
        }
    }

    /*package*/
    static InboxResponseList createInboxMessageList(HttpResponse res, Configuration conf) throws FacebookException {
        try {
            if (conf.isJSONStoreEnabled()) {
                DataObjectFactoryUtil.clearThreadLocalMap();
            }
            JSONObject json = res.asJSONObject();
            JSONArray list = json.getJSONArray("data");
            final int size = list.length();
            InboxResponseList messages = new InboxResponseListImpl(size, json);
            for (int i = 0; i < size; i++) {
                JSONObject messageJSONObject = list.getJSONObject(i);
                Message message = new MessageJSONImpl(messageJSONObject);
                if (conf.isJSONStoreEnabled()) {
                    DataObjectFactoryUtil.registerJSONObject(message, messageJSONObject);
                }
                messages.add(message);
            }
            if (conf.isJSONStoreEnabled()) {
                DataObjectFactoryUtil.registerJSONObject(messages, list);
            }
            return messages;
        } catch (JSONException jsone) {
            throw new FacebookException(jsone);
        }
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((id == null) ? 0 : id.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        MessageJSONImpl other = (MessageJSONImpl) obj;
        if (id == null) {
            if (other.id != null)
                return false;
        } else if (!id.equals(other.id))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return "MessageJSONImpl{" +
                "id='" + id + '\'' +
                ", from=" + from +
                ", to=" + to +
                ", message='" + message + '\'' +
                ", attachments='" + attachments + '\'' +
                ", createdTime=" + createdTime +
                ", updatedTime=" + updatedTime +
                ", comments=" + comments +
                ", unread=" + unread +
                ", unseen=" + unseen +
                '}';
    }

    private final class AttachmentJSONImpl implements Message.Attachment, java.io.Serializable {
        private static final long serialVersionUID = 2383005779931406513L;

        private String id;
        private String name;
        private String mime_type;
        private String url;
        private String preview_url;

        AttachmentJSONImpl(JSONObject json) throws FacebookException {
            try {
                id = getRawString("id", json);
                JSONObject mediaJson = null;
                if (!json.isNull("video_data")) {
                    mediaJson = json.getJSONObject("video_data");

                }
                else if (!json.isNull("image_data")) {
                    mediaJson = json.getJSONObject("image_data");

                }
                if(mediaJson!=null){
                    url = getRawString("url", mediaJson);
                    preview_url = getRawString("preview_url", mediaJson);
                }
                else{
                    url = getRawString("file_url", json);
                }
                name = getRawString("name", json);
                mime_type = getRawString("mime_type", json);
            } catch (JSONException jsone) {
                throw new FacebookException(jsone.getMessage(), jsone);
            }
        }

        public String getId() {
            return id;
        }

        public String getName() {
            return name;
        }

        public String getMimeType() {
            return mime_type;
        }

        public String getUrl() {
            return url;
        }

        public String getPreviewUrl() {
            return preview_url;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;

            AttachmentJSONImpl that = (AttachmentJSONImpl) o;

            return !(id != null ? !id.equals(that.id) : that.id != null);

        }

        @Override
        public int hashCode() {
            return id != null ? id.hashCode() : 0;
        }

        @Override
        public String toString() {
            return "AttachmentJSONImpl{" +
                    ", id='" + id + '\'' +
                    ", name='" + name + '\'' +
                    ", mime_type='" + mime_type + '\'' +
                    ", url='" + url + '\'' +
                    ", preview_url='" + preview_url + '\'' +
                    '}';
        }
    }
}




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