/*
* Copyright (c) 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 David Berkman
*
* This file is part of the SmallMind Code Project.
*
* The SmallMind Code Project is free software, you can redistribute
* it and/or modify it under either, at your discretion...
*
* 1) The terms of GNU Affero General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* ...or...
*
* 2) The terms of the Apache License, Version 2.0.
*
* The SmallMind Code Project is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License or Apache License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* and the Apache License along with the SmallMind Code Project. If not, see
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*
* Additional permission under the GNU Affero GPL version 3 section 7
* ------------------------------------------------------------------
* If you modify this Program, or any covered work, by linking or
* combining it with other code, such other code is not for that reason
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package org.smallmind.persistence.nosql.spring.hector;
import java.lang.reflect.Field;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import me.prettyprint.cassandra.model.BasicKeyspaceDefinition;
import me.prettyprint.hector.api.Cluster;
import me.prettyprint.hector.api.Keyspace;
import me.prettyprint.hector.api.ddl.ColumnFamilyDefinition;
import me.prettyprint.hector.api.ddl.ColumnType;
import me.prettyprint.hector.api.ddl.ComparatorType;
import me.prettyprint.hector.api.ddl.KeyspaceDefinition;
import me.prettyprint.hector.api.factory.HFactory;
import org.smallmind.persistence.Durable;
import org.smallmind.persistence.NaturalKey;
import org.smallmind.persistence.nosql.hector.HectorType;
public class HectorSchemaVerifier {
public static void verify (Cluster cluster, Keyspace keyspace, String replicationStrategyClass, int replicationFactor) {
KeyspaceDefinition keyspaceDefinition;
List<Class> hectorTypes = new LinkedList<Class>(HectorFileSeekingBeanFactoryPostProcessor.getHectorTypes(keyspace.getKeyspaceName()));
while ((keyspaceDefinition = cluster.describeKeyspace(keyspace.getKeyspaceName())) == null) {
BasicKeyspaceDefinition avatarKeyspace = new BasicKeyspaceDefinition();
avatarKeyspace.setName(keyspace.getKeyspaceName());
avatarKeyspace.setDurableWrites(true);
avatarKeyspace.setStrategyClass(replicationStrategyClass);
avatarKeyspace.setReplicationFactor(replicationFactor);
cluster.addKeyspace(avatarKeyspace, true);
}
for (ColumnFamilyDefinition columnFamilyDefinition : keyspaceDefinition.getCfDefs()) {
Iterator<Class> hectorTypeIter = hectorTypes.iterator();
while (hectorTypeIter.hasNext()) {
if (hectorTypeIter.next().getSimpleName().equals(columnFamilyDefinition.getName())) {
hectorTypeIter.remove();
break;
}
}
}
for (Class hectorType : hectorTypes) {
ColumnFamilyDefinition attributeKeyFamilyDefinition = HFactory.createColumnFamilyDefinition(keyspace.getKeyspaceName(), hectorType.getSimpleName(), ComparatorType.COMPOSITETYPE);
attributeKeyFamilyDefinition.setColumnType(ColumnType.STANDARD);
attributeKeyFamilyDefinition.setKeyValidationClass(ComparatorType.COMPOSITETYPE.getClassName() + "(UTF8Type, UTF8Type, LongType)");
attributeKeyFamilyDefinition.setDefaultValidationClass(ComparatorType.BYTESTYPE.getClassName());
attributeKeyFamilyDefinition.setComparatorTypeAlias(composeTypeAlias(hectorType));
cluster.addColumnFamily(attributeKeyFamilyDefinition, true);
}
}
private static String composeTypeAlias (Class<? extends Durable> durableType) {
StringBuilder aliasBuilder = new StringBuilder("(");
for (Field naturalKeyField : NaturalKey.getNaturalKeyFields(durableType)) {
aliasBuilder.append(HectorType.getTranslator(naturalKeyField.getType(), naturalKeyField.getName()).getHectorType()).append(',');
}
return aliasBuilder.append("UTF8Type)").toString();
}
}