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TypeHelper.java
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TypeHelper.java
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/*
* Copyright 2013 Nate McCall and Edward Capriolo
*
* Licensed 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 under the License.
*/
package org.usergrid.vx.experimental;
import java.nio.ByteBuffer;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.db.marshal.TypeParser;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.exceptions.SyntaxException;
public class TypeHelper {
public static Object getTypedIfPossible(IntraState state, String type, ByteBuffer bb, IntraOp op){
IntraMetaData imd = new IntraMetaData(IntraService.determineKs(null ,op, state),IntraService.determineCf(null, op, state),type);
String s = state.meta.get(imd);
if (s == null) {
return bb;
}
return compose(bb, s);
}
public static Object getTyped(String type, ByteBuffer bb) {
return compose(bb, type);
}
public static Object getCqlTyped(String type, ByteBuffer bb) {
if (bb == null) {
return null;
}
return compose(bb, type);
}
private static Object compose(ByteBuffer bb, String s) {
try {
AbstractType<?> abstractType = TypeParser.parse(s);
return abstractType.compose(bb);
} catch (SyntaxException | ConfigurationException e) {
throw new RuntimeException("Failed to parse type [" + s + "]", e);
}
}
}