792f606a64
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
95 lines
3.4 KiB
Java
95 lines
3.4 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.cql3.functions;
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import java.nio.ByteBuffer;
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import java.util.Date;
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import java.util.List;
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import org.apache.cassandra.db.marshal.TimestampType;
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import org.apache.cassandra.db.marshal.TimeUUIDType;
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import org.apache.cassandra.db.marshal.LongType;
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import org.apache.cassandra.utils.ByteBufferUtil;
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import org.apache.cassandra.utils.UUIDGen;
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public abstract class TimeuuidFcts
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{
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public static final Function nowFct = new NativeScalarFunction("now", TimeUUIDType.instance)
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{
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public ByteBuffer execute(int protocolVersion, List<ByteBuffer> parameters)
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{
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return ByteBuffer.wrap(UUIDGen.getTimeUUIDBytes());
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}
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@Override
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public boolean isPure()
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{
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return false;
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}
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};
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public static final Function minTimeuuidFct = new NativeScalarFunction("mintimeuuid", TimeUUIDType.instance, TimestampType.instance)
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{
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public ByteBuffer execute(int protocolVersion, List<ByteBuffer> parameters)
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{
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ByteBuffer bb = parameters.get(0);
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if (bb == null)
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return null;
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return ByteBuffer.wrap(UUIDGen.decompose(UUIDGen.minTimeUUID(TimestampType.instance.compose(bb).getTime())));
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}
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};
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public static final Function maxTimeuuidFct = new NativeScalarFunction("maxtimeuuid", TimeUUIDType.instance, TimestampType.instance)
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{
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public ByteBuffer execute(int protocolVersion, List<ByteBuffer> parameters)
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{
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ByteBuffer bb = parameters.get(0);
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if (bb == null)
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return null;
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return ByteBuffer.wrap(UUIDGen.decompose(UUIDGen.maxTimeUUID(TimestampType.instance.compose(bb).getTime())));
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}
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};
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public static final Function dateOfFct = new NativeScalarFunction("dateof", TimestampType.instance, TimeUUIDType.instance)
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{
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public ByteBuffer execute(int protocolVersion, List<ByteBuffer> parameters)
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{
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ByteBuffer bb = parameters.get(0);
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if (bb == null)
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return null;
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return TimestampType.instance.decompose(new Date(UUIDGen.unixTimestamp(UUIDGen.getUUID(bb))));
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}
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};
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public static final Function unixTimestampOfFct = new NativeScalarFunction("unixtimestampof", LongType.instance, TimeUUIDType.instance)
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{
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public ByteBuffer execute(int protocolVersion, List<ByteBuffer> parameters)
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{
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ByteBuffer bb = parameters.get(0);
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if (bb == null)
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return null;
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return ByteBufferUtil.bytes(UUIDGen.unixTimestamp(UUIDGen.getUUID(bb)));
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}
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};
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}
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