com.icosilune.fnexample.simple.TimestampFn.java Source code

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Here is the source code for com.icosilune.fnexample.simple.TimestampFn.java

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/*
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package com.icosilune.fnexample.simple;

import com.google.common.collect.ImmutableMap;
import com.icosilune.fn.AbstractFn;
import com.icosilune.fn.EvaluationContext;
import com.icosilune.fn.FnType;
import java.util.Map;

/**
 *
 * @author ashmore
 */
public class TimestampFn extends AbstractFn {

    @Override
    public Map<String, FnType> getInputTypes() {
        return ImmutableMap.of();
    }

    @Override
    public Map<String, FnType> getOutputTypes() {
        return ImmutableMap.of("timestamp", FnType.fromString("double"));
    }

    @Override
    public Map<String, Object> evaluateWrapper(EvaluationContext context, Map<String, Object> args) {
        double timestamp = (Double) context.getValue("timestamp");
        return ImmutableMap.of("timestamp", timestamp);
    }

    @Override
    public boolean isContextDependent() {
        return true;
    }
}