private static String getExtraInfo(SrmPrepareToPutRequest request, String key) { ArrayOfTExtraInfo storageSystemInfo = request.getStorageSystemInfo(); if (storageSystemInfo == null) { return null; } TExtraInfo[] extraInfoArray = storageSystemInfo.getExtraInfoArray(); if (extraInfoArray == null || extraInfoArray.length <= 0) { return null; } for (TExtraInfo extraInfo : extraInfoArray) { if (extraInfo.getKey().equals(key)) { return extraInfo.getValue(); } } return null; }