com.hazelcast.jet.sql.impl.connector.SqlConnectorCache Maven / Gradle / Ivy
/*
* Copyright 2021 Hazelcast Inc.
*
* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://hazelcast.com/hazelcast-community-license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.jet.sql.impl.connector;
import com.hazelcast.core.HazelcastException;
import com.hazelcast.internal.util.ServiceLoader;
import com.hazelcast.spi.impl.NodeEngine;
import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import static java.util.Objects.requireNonNull;
public class SqlConnectorCache {
private static final String FACTORY_ID = "com.hazelcast.sql.Connectors";
private final Map connectors = new HashMap<>();
public SqlConnectorCache(NodeEngine nodeEngine) {
try {
ServiceLoader.iterator(SqlConnector.class, FACTORY_ID, nodeEngine.getConfigClassLoader())
.forEachRemaining(this::addConnector);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void addConnector(SqlConnector connector) {
String type = connector.typeName();
String canonicalType = toCanonicalType(type);
if (connectors.putIfAbsent(canonicalType, connector) != null) {
throw new HazelcastException("Duplicate connector: " + type);
}
}
public SqlConnector forType(String type) {
String canonicalType = toCanonicalType(type);
return requireNonNull(connectors.get(canonicalType), "Unknown connector type: " + type);
}
private static String toCanonicalType(String type) {
return type.toUpperCase(Locale.ENGLISH);
}
}
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