Example usage for java.util.concurrent ConcurrentHashMap size

Introduction

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

Prototype

public int size() 

Source Link

Usage

From source file:hu.sztaki.lpds.pgportal.services.asm.ASMService.java

public String getRuntimeID(String userID, String workflowID) {

    ConcurrentHashMap runtimes = ((ConcurrentHashMap) PortalCacheService.getInstance().getUser(userID)
            .getWorkflow(workflowID).getAllRuntimeInstance());

    if (runtimes.size() > 0) {

        Object firstID = runtimes.keySet().iterator().next();

        return firstID.toString();

    }/*  w w w  .  ja va  2s.c  om*/

    return null;

}

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From source file:com.pari.nm.utils.db.InventoryDBHelper.java

public static void insertExternalDeviceDetails(int nccmId, int customerId, String ipAddress, Long externalId,
        String serviceName, int wingId, boolean replace) throws Exception {
    Connection c = DBHelper.getConnection();
    PreparedStatement ps = null;/*www  .  j  av a2  s.c om*/

    try {
        ConcurrentHashMap<Integer, String> nodeMap = getExternalNodeInfo(serviceName, externalId);
        if (nodeMap != null && nodeMap.size() > 0) {
            if (replace) {
                try {
                    String query = "delete from external_device where EXTERNAL_ID=" + externalId
                            + " and SERVICE_NAME='" + serviceName + "'";
                    DBHelper.executeUpdate(query);
                } catch (Exception ex) {
                    logger.error("Exception while deleting external_device: EXTERNAL_ID=" + externalId
                            + " and SERVICE_NAME='" + serviceName + "'", ex);
                }
            } else {
                throw new Exception("An Entry already Exist with the same EXTERNALID=" + externalId
                        + " and SERVICENAME='" + serviceName + "'");
            }
        }
    } catch (SQLException e) {
        logger.error("Exception while retrieving external_device: EXTERNAL_ID=" + externalId
                + " and SERVICE_NAME='" + serviceName + "'", e);
    }

    try {
        ps = c.prepareStatement(
                "insert into external_device(NCCM_ID, CUSTOMER_ID, IPADDRESS, EXTERNAL_ID, SERVICE_NAME, WING_INSTANCE_ID) values (?,?,?,?,?,?)");
        ps.setInt(1, nccmId);
        ps.setInt(2, customerId);
        ps.setString(3, ipAddress);
        ps.setLong(4, externalId);
        ps.setString(5, serviceName);
        ps.setInt(6, wingId);

        ps.executeUpdate();
    } catch (Exception ex) {
        ex.printStackTrace();
    } finally {
        try {
            ps.close();
        } catch (Exception ex) {
        }
        DBHelper.releaseConnection(c);
    }
}

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