Package org.apache.cassandra.config

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

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            rks.name = ksm.name;
            rks.replica_placement_strategy = ksm.strategyClass.getName();
            rks.replication_factor = ksm.replicationFactor;
            rks.column_families = new RawColumnFamily[ksm.cfMetaData().size()];
            int i = 0;
            for (CFMetaData cfm : ksm.cfMetaData().values())
            {
                RawColumnFamily rcf = new RawColumnFamily();
                rcf.name = cfm.cfName;
                rcf.compare_with = cfm.comparator.getClass().getName();
                rcf.default_validation_class = cfm.getDefaultValidator().getClass().getName();
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        this.metadata = CFMetaData.inflate(oldCfm.deflate());
        this.metadata.apply(cf_def);
       
        // create a copy of the old KS meta data. Use it to create a RowMutation that gets applied to schema and migrations.
        KSMetaData newKsMeta = KSMetaData.inflate(ksm.deflate());
        newKsMeta.cfMetaData().get(cf_def.name.toString()).apply(cf_def);
        rm = Migration.makeDefinitionMutation(newKsMeta, null, newVersion);
    }
   
    public void beforeApplyModels()
    {
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    {
        DecoratedKey dk = Util.dk("dropCf");
        // sanity
        final KSMetaData ks = DatabaseDescriptor.getTableDefinition("Keyspace1");
        assert ks != null;
        final CFMetaData cfm = ks.cfMetaData().get("Standard1");
        assert cfm != null;
       
        // write some data, force a flush, then verify that files exist on disk.
        RowMutation rm = new RowMutation(ks.name, dk.key);
        for (int i = 0; i < 100; i++)
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    public void renameCf() throws ConfigurationException, IOException, ExecutionException, InterruptedException
    {
        DecoratedKey dk = Util.dk("key0");
        final KSMetaData ks = DatabaseDescriptor.getTableDefinition("Keyspace2");
        assert ks != null;
        final CFMetaData oldCfm = ks.cfMetaData().get("Standard1");
        assert oldCfm != null;
       
        // write some data, force a flush, then verify that files exist on disk.
        RowMutation rm = new RowMutation(ks.name, dk.key);
        for (int i = 0; i < 100; i++)
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    {
        DecoratedKey dk = Util.dk("dropKs");
        // sanity
        final KSMetaData ks = DatabaseDescriptor.getTableDefinition("Keyspace1");
        assert ks != null;
        final CFMetaData cfm = ks.cfMetaData().get("Standard2");
        assert cfm != null;
       
        // write some data, force a flush, then verify that files exist on disk.
        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, ByteBuffer.wrap(("col" + i).getBytes())), 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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        this.cfName = cfName;
       
        KSMetaData ksm = DatabaseDescriptor.getTableDefinition(tableName);
        if (ksm == null)
            throw new ConfigurationException("Keyspace does not already exist.");
        else if (!ksm.cfMetaData().containsKey(cfName))
            throw new ConfigurationException("CF is not defined in that keyspace.");
       
        KSMetaData newKsm = makeNewKeyspaceDefinition(ksm);
        rm = Migration.makeDefinitionMutation(newKsm, null, newVersion);
    }
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