Package org.apache.cassandra.config

Examples of org.apache.cassandra.config.KSMetaData.cfMetaData()

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    {
        DecoratedKey dk = Util.dk("dropKs");
        // sanity
        final KSMetaData ks = DatabaseDescriptor.getTableDefinition("Keyspace3");
        assert ks != null;
        final CFMetaData cfm = ks.cfMetaData().get("Standard1");
        assert cfm != null;

        // write some data
        RowMutation rm = new RowMutation(ks.name, dk.key);
        for (int i = 0; i < 100; i++)
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    {
        DecoratedKey dk = Util.dk("renameKs");
        final KSMetaData oldKs = DatabaseDescriptor.getTableDefinition("Keyspace2");
        assert oldKs != null;
        final String cfName = "Standard3";
        assert oldKs.cfMetaData().containsKey(cfName);
        assert oldKs.cfMetaData().get(cfName).tableName.equals(oldKs.name);
       
        // write some data that we hope to read back later.
        RowMutation rm = new RowMutation(oldKs.name, dk.key);
        for (int i = 0; i < 10; i++)
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        DecoratedKey dk = Util.dk("renameKs");
        final KSMetaData oldKs = DatabaseDescriptor.getTableDefinition("Keyspace2");
        assert oldKs != null;
        final String cfName = "Standard3";
        assert oldKs.cfMetaData().containsKey(cfName);
        assert oldKs.cfMetaData().get(cfName).tableName.equals(oldKs.name);
       
        // write some data that we hope to read back later.
        RowMutation rm = new RowMutation(oldKs.name, dk.key);
        for (int i = 0; i < 10; i++)
            rm.add(new QueryPath(cfName, null, ByteBufferUtil.bytes(("col" + i))), ByteBufferUtil.bytes("value"), 1L);
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        KSMetaData newKs = DatabaseDescriptor.getTableDefinition(newKsName);
       
        assert DatabaseDescriptor.getTableDefinition(oldKs.name) == null;
        assert newKs != null;
        assert newKs.name.equals(newKsName);
        assert newKs.cfMetaData().containsKey(cfName);
        assert newKs.cfMetaData().get(cfName).tableName.equals(newKsName);
        assert DefsTable.getFiles(newKs.name, cfName).size() > 0;
       
        // read on old should fail.
        try
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        assert DatabaseDescriptor.getTableDefinition(oldKs.name) == null;
        assert newKs != null;
        assert newKs.name.equals(newKsName);
        assert newKs.cfMetaData().containsKey(cfName);
        assert newKs.cfMetaData().get(cfName).tableName.equals(newKsName);
        assert DefsTable.getFiles(newKs.name, cfName).size() > 0;
       
        // read on old should fail.
        try
        {
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        cfm.validate();

        KSMetaData ksm = Schema.instance.getTableDefinition(cfm.ksName);
        if (ksm == null)
            throw new ConfigurationException(String.format("Cannot add column family '%s' to non existing keyspace '%s'.", cfm.cfName, cfm.ksName));
        else if (ksm.cfMetaData().containsKey(cfm.cfName))
            throw new AlreadyExistsException(cfm.ksName, cfm.cfName);

        logger.info(String.format("Create new ColumnFamily: %s", cfm));
        announce(cfm.toSchema(FBUtilities.timestampMicros()));
    }
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    private CFMetaData findIndexedCF() throws InvalidRequestException
    {
        KSMetaData ksm = Schema.instance.getKSMetaData(keyspace());
        if (ksm == null)
            throw new KeyspaceNotDefinedException("Keyspace " + keyspace() + " does not exist");
        for (CFMetaData cfm : ksm.cfMetaData().values())
        {
            if (findIndexedColumn(cfm) != null)
                return cfm;
        }
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    private static void addColumnFamily(CFMetaData cfm)
    {
        assert Schema.instance.getCFMetaData(cfm.ksName, cfm.cfName) == null;
        KSMetaData ksm = Schema.instance.getKSMetaData(cfm.ksName);
        ksm = KSMetaData.cloneWith(ksm, Iterables.concat(ksm.cfMetaData().values(), Collections.singleton(cfm)));

        logger.info("Loading {}", cfm);

        Schema.instance.load(cfm);
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    private static void dropKeyspace(String ksName)
    {
        KSMetaData ksm = Schema.instance.getKSMetaData(ksName);
        String snapshotName = Keyspace.getTimestampedSnapshotName(ksName);

        CompactionManager.instance.interruptCompactionFor(ksm.cfMetaData().values(), true);

        Keyspace keyspace = Keyspace.open(ksm.name);

        // remove all cfs from the keyspace instance.
        List<UUID> droppedCfs = new ArrayList<>();
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        Keyspace keyspace = Keyspace.open(ksm.name);

        // remove all cfs from the keyspace instance.
        List<UUID> droppedCfs = new ArrayList<>();
        for (CFMetaData cfm : ksm.cfMetaData().values())
        {
            ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfm.cfName);

            Schema.instance.purge(cfm);
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