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 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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package org.apache.cassandra.config;

import java.util.*;

import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.cql3.QueryProcessor;
import org.apache.cassandra.cql3.UntypedResultSet;
import org.apache.cassandra.db.ColumnFamilyStore;
import org.apache.cassandra.db.Keyspace;
import org.apache.cassandra.db.Mutation;
import org.apache.cassandra.db.marshal.AsciiType;
import org.apache.cassandra.db.marshal.Int32Type;
import org.apache.cassandra.db.marshal.UTF8Type;
import org.apache.cassandra.db.partitions.PartitionUpdate;
import org.apache.cassandra.db.rows.UnfilteredRowIterators;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.schema.CompressionParams;
import org.apache.cassandra.schema.KeyspaceMetadata;
import org.apache.cassandra.schema.KeyspaceParams;
import org.apache.cassandra.schema.SchemaKeyspace;
import org.apache.cassandra.schema.TableParams;
import org.apache.cassandra.schema.Types;
import org.apache.cassandra.thrift.CfDef;
import org.apache.cassandra.thrift.ColumnDef;
import org.apache.cassandra.thrift.IndexType;
import org.apache.cassandra.thrift.ThriftConversion;
import org.apache.cassandra.utils.ByteBufferUtil;
import org.apache.cassandra.utils.FBUtilities;

import org.junit.BeforeClass;
import org.junit.Test;

import static org.junit.Assert.assertEquals;

public class CFMetaDataTest
{
    private static final String KEYSPACE1 = "CFMetaDataTest1";
    private static final String CF_STANDARD1 = "Standard1";

    private static List<ColumnDef> columnDefs = new ArrayList<ColumnDef>();

    static
    {
        columnDefs.add(new ColumnDef(ByteBufferUtil.bytes("col1"), AsciiType.class.getCanonicalName())
                                    .setIndex_name("col1Index")
                                    .setIndex_type(IndexType.KEYS));

        columnDefs.add(new ColumnDef(ByteBufferUtil.bytes("col2"), UTF8Type.class.getCanonicalName())
                                    .setIndex_name("col2Index")
                                    .setIndex_type(IndexType.KEYS));

        Map<String, String> customIndexOptions = new HashMap<>();
        customIndexOptions.put("option1", "value1");
        customIndexOptions.put("option2", "value2");
        columnDefs.add(new ColumnDef(ByteBufferUtil.bytes("col3"), Int32Type.class.getCanonicalName())
                                    .setIndex_name("col3Index")
                                    .setIndex_type(IndexType.CUSTOM)
                                    .setIndex_options(customIndexOptions));
    }

    @BeforeClass
    public static void defineSchema() throws ConfigurationException
    {
        SchemaLoader.prepareServer();
        SchemaLoader.createKeyspace(KEYSPACE1,
                                    KeyspaceParams.simple(1),
                                    SchemaLoader.standardCFMD(KEYSPACE1, CF_STANDARD1));
    }

    @Test
    public void testThriftConversion() throws Exception
    {
        CfDef cfDef = new CfDef().setDefault_validation_class(AsciiType.class.getCanonicalName())
                                 .setComment("Test comment")
                                 .setColumn_metadata(columnDefs)
                                 .setKeyspace(KEYSPACE1)
                                 .setName(CF_STANDARD1);

        // convert Thrift to CFMetaData
        CFMetaData cfMetaData = ThriftConversion.fromThrift(cfDef);

        CfDef thriftCfDef = new CfDef();
        thriftCfDef.keyspace = KEYSPACE1;
        thriftCfDef.name = CF_STANDARD1;
        thriftCfDef.default_validation_class = cfDef.default_validation_class;
        thriftCfDef.comment = cfDef.comment;
        thriftCfDef.column_metadata = new ArrayList<>();
        for (ColumnDef columnDef : columnDefs)
        {
            ColumnDef c = new ColumnDef();
            c.name = ByteBufferUtil.clone(columnDef.name);
            c.validation_class = columnDef.getValidation_class();
            c.index_name = columnDef.getIndex_name();
            c.index_type = columnDef.getIndex_type();
            if (columnDef.isSetIndex_options())
                c.setIndex_options(columnDef.getIndex_options());
            thriftCfDef.column_metadata.add(c);
        }

        CfDef converted = ThriftConversion.toThrift(cfMetaData);

        assertEquals(thriftCfDef.keyspace, converted.keyspace);
        assertEquals(thriftCfDef.name, converted.name);
        assertEquals(thriftCfDef.default_validation_class, converted.default_validation_class);
        assertEquals(thriftCfDef.comment, converted.comment);
        assertEquals(new HashSet<>(thriftCfDef.column_metadata), new HashSet<>(converted.column_metadata));
    }

    @Test
    public void testConversionsInverses() throws Exception
    {
        for (String keyspaceName : Schema.instance.getNonSystemKeyspaces())
        {
            for (ColumnFamilyStore cfs : Keyspace.open(keyspaceName).getColumnFamilyStores())
            {
                CFMetaData cfm = cfs.metadata;
                if (!cfm.isThriftCompatible())
                    continue;

                checkInverses(cfm);

                // Testing with compression to catch #3558
                CFMetaData withCompression = cfm.copy();
                withCompression.compression(CompressionParams.snappy(32768));
                checkInverses(withCompression);
            }
        }
    }

    private void checkInverses(CFMetaData cfm) throws Exception
    {
        KeyspaceMetadata keyspace = Schema.instance.getKSMetaData(cfm.ksName);

        // Test thrift conversion
        CFMetaData before = cfm;
        CFMetaData after = ThriftConversion.fromThriftForUpdate(ThriftConversion.toThrift(before), before);
        assert before.equals(after) : String.format("%n%s%n!=%n%s", before, after);

        // Test schema conversion
        Mutation rm = SchemaKeyspace.makeCreateTableMutation(keyspace, cfm, FBUtilities.timestampMicros());
        PartitionUpdate cfU = rm.getPartitionUpdate(Schema.instance.getId(SchemaKeyspace.NAME, SchemaKeyspace.TABLES));
        PartitionUpdate cdU = rm.getPartitionUpdate(Schema.instance.getId(SchemaKeyspace.NAME, SchemaKeyspace.COLUMNS));

        UntypedResultSet.Row tableRow = QueryProcessor.resultify(String.format("SELECT * FROM %s.%s", SchemaKeyspace.NAME, SchemaKeyspace.TABLES),
                                                                 UnfilteredRowIterators.filter(cfU.unfilteredIterator(), FBUtilities.nowInSeconds()))
                                                      .one();
        TableParams params = SchemaKeyspace.createTableParamsFromRow(tableRow);

        UntypedResultSet columnsRows = QueryProcessor.resultify(String.format("SELECT * FROM %s.%s", SchemaKeyspace.NAME, SchemaKeyspace.COLUMNS),
                                                                UnfilteredRowIterators.filter(cdU.unfilteredIterator(), FBUtilities.nowInSeconds()));
        Set<ColumnDefinition> columns = new HashSet<>();
        for (UntypedResultSet.Row row : columnsRows)
            columns.add(SchemaKeyspace.createColumnFromRow(row, Types.none()));

        assertEquals(cfm.params, params);
        assertEquals(new HashSet<>(cfm.allColumns()), columns);
    }
}