/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.qp.util;
import com.foundationdb.server.error.StorageKeySizeExceededException;
import com.persistit.Key;
public class PersistitKey
{
public static void appendFieldFromKey(Key targetKey, Key sourceKey, int sourceDepth, Object descForError)
{
sourceKey.indexTo(sourceDepth);
int from = sourceKey.getIndex();
sourceKey.indexTo(sourceDepth + 1);
int to = sourceKey.getIndex();
if (from >= 0 && to >= 0 && to > from) {
int newSize = targetKey.getEncodedSize() + to - from;
if(newSize > targetKey.getMaximumSize()) {
throw new StorageKeySizeExceededException(targetKey.getMaximumSize(), String.valueOf(descForError));
}
System.arraycopy(sourceKey.getEncodedBytes(), from,
targetKey.getEncodedBytes(), targetKey.getEncodedSize(), to - from);
targetKey.setEncodedSize(newSize);
}
}
}