Example usage for java.util AbstractQueue size

Introduction

In this page you can find the example usage for java.util AbstractQueue size.

Prototype

int size();

Source Link

Document

Returns the number of elements in this collection.

Usage

From source file:com.google.code.fqueue.memcached.storage.FSStorage.java

/**
 * get???/*w ww .j a v a2s . c  o m*/
 * 
 * @param keystring
 * @return
 * @throws ClientException
 */
private LocalCacheElement getProtocol(String keystring) throws ClientException {
    // ?
    if (keystring.startsWith("size")) {
        try {
            // size|bbs
            // size?????????
            String[] clientInfo = QueueClient.parse(keystring, '|');
            if (clientInfo.length < 2 || authorizationMap.containsKey(clientInfo[1]) == false) {
                return null;
            }
            AbstractQueue<byte[]> sizeQueue = getClientQueue(clientInfo[1]);
            if (sizeQueue == null) {
                return null;
            }
            int size = sizeQueue.size();
            LocalCacheElement element = new LocalCacheElement(keystring, 0, 0, 0);
            element.setData(String.valueOf(size).getBytes());
            return element;
        } catch (Exception e) {
            log.error("getsize " + keystring + "error", e);
            return null;
        }
    }
    // 
    if (keystring.startsWith("clear")) {
        try {
            // clear|bbs|pass
            String[] clientInfo = QueueClient.parse(keystring, '|');
            if (clientInfo.length < 3 || valid(clientInfo[1], clientInfo[2]) == false) {
                throw new ClientException("Authorization error");
            }
            AbstractQueue<byte[]> queue = getClientQueue(clientInfo[1]);
            queue.clear();
            LocalCacheElement element = new LocalCacheElement(keystring, 0, 0, 0);
            element.setData(String.valueOf(queue.size()).getBytes());
            return element;
        } catch (Exception e) {
            log.error("getsize " + keystring + "error", e);
            return null;
        }
    }
    // ????
    if (keystring.startsWith("reload")) {
        try {
            // reload|bbs|pass
            String[] clientInfo = QueueClient.parse(keystring, '|');
            if (clientInfo.length < 3 || valid(clientInfo[1], clientInfo[2]) == false) {
                throw new ClientException("Authorization error");
            }
            reloadAuthorization();
            LocalCacheElement element = new LocalCacheElement(keystring, 0, 0, 0);
            element.setData("reloadAuthorization".getBytes());
            return element;
        } catch (ConfigException e) {
            log.error(e.getMessage(), e);
        } catch (Exception e) {
            log.error("reloadAuthorization error", e);
            return null;
        }
    }
    // ????
    if (keystring.startsWith("monitor")) {
        try {
            // size|bbs
            // size?????????
            String[] clientInfo = QueueClient.parse(keystring, '|');
            if (clientInfo.length < 2) {
                return null;
            }
            String items = clientInfo[1];
            StringBuilder stats = new StringBuilder();
            if (items != null) {
                String[] itemList = StringUtils.split(items, ",");
                for (int i = 0, len = itemList.length; i < len; i++) {
                    if (i > 0) {
                        stats.append("\r\n");
                    }
                    String data = JVMMonitor.getMonitorStats(itemList[i]);
                    stats.append(data);
                }
            } else {
                stats.append("need items");
            }

            LocalCacheElement element = new LocalCacheElement(keystring, 0, 0, 0);
            element.setData(stats.toString().getBytes());
            return element;
        } catch (Exception e) {
            log.error("monitor " + keystring + "error", e);
            return null;
        }
    }
    throw new ClientException(keystring + " command Unsupported now");
}

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