io.virtdata.libbasics.shared.from_long.to_collection.HashedLineToStringList Maven / Gradle / Ivy
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With inspiration from other libraries
package io.virtdata.libbasics.shared.from_long.to_collection;
import io.virtdata.annotations.Categories;
import io.virtdata.annotations.Category;
import io.virtdata.annotations.ThreadSafeMapper;
import io.virtdata.libbasics.shared.from_long.to_long.HashRange;
import io.virtdata.libbasics.shared.from_long.to_string.HashedLineToString;
import java.util.ArrayList;
import java.util.List;
import java.util.function.LongFunction;
/**
* Creates a List<String> from a list of words in a file.
*/
@ThreadSafeMapper
@Categories({Category.collections})
public class HashedLineToStringList implements LongFunction {
private final HashedLineToString hashedLineToString;
private final HashRange hashRange;
public HashedLineToStringList(String filename, int minSize, int maxSize) {
this.hashedLineToString = new HashedLineToString(filename);
this.hashRange = new HashRange(minSize,maxSize);
}
@Override
public List apply(long value) {
long size = hashRange.applyAsLong(value);
List list = new ArrayList<>();
for (int i = 0; i < size; i++) {
list.add(hashedLineToString.apply(value+i));
}
return list;
}
}