NotificationAttachmentWithExtension.java

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package com.netease.nimlib.sdk.msg.attachment;

import com.netease.nimlib.session.MsgHelper;
import com.netease.nimlib.util.JSONHelper;

import org.json.JSONObject;

import java.util.Map;

public abstract class NotificationAttachmentWithExtension extends NotificationAttachment {
    private static final String TAG_ATTACH = "attach";

    protected Map<String, Object> extension;

    public Map<String, Object> getExtension() {
        return extension;
    }

    @Override
    public void parse(JSONObject json) {
        if (json.has(TAG_ATTACH)) {
            extension = MsgHelper.getMapFromJsonString(JSONHelper.getString(json, TAG_ATTACH));
        }
    }
}