/******************************************************************************
* Copyright © 2013-2016 The Nxt Core Developers. *
* *
* See the AUTHORS.txt, DEVELOPER-AGREEMENT.txt and LICENSE.txt files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* Nxt software, including this file, may be copied, modified, propagated, *
* or distributed except according to the terms contained in the LICENSE.txt *
* file. *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
package nxt.http;
import nxt.Account;
import nxt.Attachment;
import nxt.Nxt;
import nxt.NxtException;
import nxt.TaggedData;
import nxt.Transaction;
import nxt.TransactionType;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
import static nxt.http.JSONResponses.UNKNOWN_TRANSACTION;
public final class ExtendTaggedData extends CreateTransaction {
static final ExtendTaggedData instance = new ExtendTaggedData();
private ExtendTaggedData() {
super("file", new APITag[] {APITag.DATA, APITag.CREATE_TRANSACTION}, "transaction",
"name", "description", "tags", "type", "channel", "isText", "filename", "data");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
Account account = ParameterParser.getSenderAccount(req);
long transactionId = ParameterParser.getUnsignedLong(req, "transaction", true);
TaggedData taggedData = TaggedData.getData(transactionId);
if (taggedData == null) {
Transaction transaction = Nxt.getBlockchain().getTransaction(transactionId);
if (transaction == null || transaction.getType() != TransactionType.Data.TAGGED_DATA_UPLOAD) {
return UNKNOWN_TRANSACTION;
}
Attachment.TaggedDataUpload taggedDataUpload = ParameterParser.getTaggedData(req);
taggedData = new TaggedData(transaction, taggedDataUpload);
}
Attachment.TaggedDataExtend taggedDataExtend = new Attachment.TaggedDataExtend(taggedData);
return createTransaction(req, account, taggedDataExtend);
}
}