Java ConfigurationException.initCause方法代碼示例

本文整理匯總了Java中org.apache.cassandra.exceptions.ConfigurationException.initCause方法的典型用法代碼示例。如果您正苦於以下問題：Java ConfigurationException.initCause方法的具體用法？Java ConfigurationException.initCause怎麽用？Java ConfigurationException.initCause使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.apache.cassandra.exceptions.ConfigurationException的用法示例。

在下文中一共展示了ConfigurationException.initCause方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: checkHealth

import org.apache.cassandra.exceptions.ConfigurationException; //導入方法依賴的package包/類
/**
 * One of three things will happen if you try to read the system keyspace:
 * 1. files are present and you can read them: great
 * 2. no files are there: great (new node is assumed)
 * 3. files are present but you can't read them: bad
 * @throws ConfigurationException
 */
public static void checkHealth() throws ConfigurationException
{
    Keyspace keyspace;
    try
    {
        keyspace = Keyspace.open(Keyspace.SYSTEM_KS);
    }
    catch (AssertionError err)
    {
        // this happens when a user switches from OPP to RP.
        ConfigurationException ex = new ConfigurationException("Could not read system keyspace!");
        ex.initCause(err);
        throw ex;
    }
    ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(LOCAL_CF);

    String req = "SELECT cluster_name FROM system.%s WHERE key='%s'";
    UntypedResultSet result = executeInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

    if (result.isEmpty() || !result.one().has("cluster_name"))
    {
        // this is a brand new node
        if (!cfs.getSSTables().isEmpty())
            throw new ConfigurationException("Found system keyspace files, but they couldn't be loaded!");

        // no system files.  this is a new node.
        req = "INSERT INTO system.%s (key, cluster_name) VALUES ('%s', ?)";
        executeInternal(String.format(req, LOCAL_CF, LOCAL_KEY), DatabaseDescriptor.getClusterName());
        return;
    }

    String savedClusterName = result.one().getString("cluster_name");
    if (!DatabaseDescriptor.getClusterName().equals(savedClusterName))
        throw new ConfigurationException("Saved cluster name " + savedClusterName + " != configured name " + DatabaseDescriptor.getClusterName());
}

開發者ID:vcostet，項目名稱:cassandra-kmean，代碼行數:43，代碼來源:SystemKeyspace.java

示例2: checkHealth

import org.apache.cassandra.exceptions.ConfigurationException; //導入方法依賴的package包/類
/**
 * One of three things will happen if you try to read the system keyspace:
 * 1. files are present and you can read them: great
 * 2. no files are there: great (new node is assumed)
 * 3. files are present but you can't read them: bad
 * @throws ConfigurationException
 */
public static void checkHealth() throws ConfigurationException
{
    Keyspace keyspace;
    try
    {
        keyspace = Keyspace.open(Keyspace.SYSTEM_KS);
    }
    catch (AssertionError err)
    {
        // this happens when a user switches from OPP to RP.
        ConfigurationException ex = new ConfigurationException("Could not read system keyspace!");
        ex.initCause(err);
        throw ex;
    }
    ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(LOCAL_CF);

    String req = "SELECT cluster_name FROM system.%s WHERE key='%s'";
    UntypedResultSet result = processInternal(String.format(req, LOCAL_CF, LOCAL_KEY));

    if (result.isEmpty() || !result.one().has("cluster_name"))
    {
        // this is a brand new node
        if (!cfs.getSSTables().isEmpty())
            throw new ConfigurationException("Found system keyspace files, but they couldn't be loaded!");

        // no system files.  this is a new node.
        req = "INSERT INTO system.%s (key, cluster_name) VALUES ('%s', '%s')";
        processInternal(String.format(req, LOCAL_CF, LOCAL_KEY, DatabaseDescriptor.getClusterName()));
        return;
    }

    String savedClusterName = result.one().getString("cluster_name");
    if (!DatabaseDescriptor.getClusterName().equals(savedClusterName))
        throw new ConfigurationException("Saved cluster name " + savedClusterName + " != configured name " + DatabaseDescriptor.getClusterName());
}

開發者ID:pgaref，項目名稱:ACaZoo，代碼行數:43，代碼來源:SystemKeyspace.java

示例3: checkHealth

import org.apache.cassandra.exceptions.ConfigurationException; //導入方法依賴的package包/類
/**
 * One of three things will happen if you try to read the system keyspace:
 * 1. files are present and you can read them: great
 * 2. no files are there: great (new node is assumed)
 * 3. files are present but you can't read them: bad
 * @throws ConfigurationException
 */
public static void checkHealth() throws ConfigurationException
{
    Keyspace keyspace;
    try
    {
        keyspace = Keyspace.open(NAME);
    }
    catch (AssertionError err)
    {
        // this happens when a user switches from OPP to RP.
        ConfigurationException ex = new ConfigurationException("Could not read system keyspace!");
        ex.initCause(err);
        throw ex;
    }
    ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(LOCAL);

    String req = "SELECT cluster_name FROM system.%s WHERE key='%s'";
    UntypedResultSet result = executeInternal(String.format(req, LOCAL, LOCAL));

    if (result.isEmpty() || !result.one().has("cluster_name"))
    {
        // this is a brand new node
        if (!cfs.getLiveSSTables().isEmpty())
            throw new ConfigurationException("Found system keyspace files, but they couldn't be loaded!");

        // no system files.  this is a new node.
        return;
    }

    String savedClusterName = result.one().getString("cluster_name");
    if (!DatabaseDescriptor.getClusterName().equals(savedClusterName))
        throw new ConfigurationException("Saved cluster name " + savedClusterName + " != configured name " + DatabaseDescriptor.getClusterName());
}

開發者ID:scylladb，項目名稱:scylla-tools-java，代碼行數:41，代碼來源:SystemKeyspace.java

注：本文中的org.apache.cassandra.exceptions.ConfigurationException.initCause方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。