com.datastax.dse.driver.internal.core.graph.binary.GeometrySerializer Maven / Gradle / Ivy
The newest version!
/*
* Licensed to the Apache Software Foundation (ASF) under one
* 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 under the License.
*/
package com.datastax.dse.driver.internal.core.graph.binary;
import com.datastax.dse.driver.api.core.data.geometry.Geometry;
import com.datastax.dse.driver.internal.core.graph.TinkerpopBufferUtil;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.tinkerpop.gremlin.structure.io.Buffer;
import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryReader;
import org.apache.tinkerpop.gremlin.structure.io.binary.GraphBinaryWriter;
public abstract class GeometrySerializer
extends AbstractSimpleGraphBinaryCustomSerializer {
public abstract T fromWellKnownBinary(ByteBuffer buffer);
@Override
protected T readCustomValue(int valueLength, Buffer buffer, GraphBinaryReader context)
throws IOException {
return fromWellKnownBinary(TinkerpopBufferUtil.readBytes(buffer, valueLength));
}
@Override
protected void writeCustomValue(T value, Buffer buffer, GraphBinaryWriter context)
throws IOException {
ByteBuffer bb = value.asWellKnownBinary();
// writing the {value_length}
context.writeValue(bb.remaining(), buffer, false);
buffer.writeBytes(bb);
}
}