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LoadCqlVector.java
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LoadCqlVector.java
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/*
* Copyright (c) 2022 nosqlbench
*
* 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 io.nosqlbench.datamappers.functions.to_cqlvector;
import com.datastax.oss.driver.api.core.data.CqlVector;
import io.nosqlbench.virtdata.api.annotations.Categories;
import io.nosqlbench.virtdata.api.annotations.Category;
import io.nosqlbench.virtdata.api.annotations.Example;
import io.nosqlbench.virtdata.api.annotations.ThreadSafeMapper;
import io.nosqlbench.virtdata.library.basics.core.threadstate.SharedState;
import java.util.HashMap;
import java.util.function.Function;
@Categories(Category.state)
@ThreadSafeMapper
public class LoadCqlVector implements Function<Object,com.datastax.oss.driver.api.core.data.CqlVector> {
private final String name;
private final Function<Object,Object> nameFunc;
private final com.datastax.oss.driver.api.core.data.CqlVector defaultValue;
@Example({"LoadDouble('foo')","for the current thread, load a double value from the named variable."})
public LoadCqlVector(String name) {
this.name = name;
this.nameFunc=null;
this.defaultValue=com.datastax.oss.driver.api.core.data.CqlVector.newInstance(0.0f);
}
@Example({"LoadDouble('foo',23D)","for the current thread, load a double value from the named variable," +
"or the default value if the named variable is not defined."})
public LoadCqlVector(String name, int len) {
this.name = name;
this.nameFunc=null;
Double[] ary = new Double[len];
for (int i = 0; i < len; i++) {
ary[i]=(double)i;
}
this.defaultValue=com.datastax.oss.driver.api.core.data.CqlVector.newInstance(ary);
}
@Override
public com.datastax.oss.driver.api.core.data.CqlVector apply(Object o) {
HashMap<String, Object> map = SharedState.tl_ObjectMap.get();
String varname=(nameFunc!=null) ? String.valueOf(nameFunc.apply(o)) : name;
Object value = map.getOrDefault(varname, defaultValue);
if (value instanceof CqlVector<?> cqlvector) {
return cqlvector;
} else if (value instanceof float[] fa) {
Float[] ary = new Float[fa.length];
for (int i = 0; i < fa.length; i++) {
ary[i]=fa[i];
}
return com.datastax.oss.driver.api.core.data.CqlVector.newInstance(ary);
} else if (value instanceof double[] da) {
Double[] ary = new Double[da.length];
for (int i = 0; i < da.length; i++) {
ary[i]=da[i];
}
return com.datastax.oss.driver.api.core.data.CqlVector.newInstance(ary);
} else {
return (com.datastax.oss.driver.api.core.data.CqlVector) value;
}
}
}