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Jinja templating engine implemented in Java

There is a newer version: 2.8.0

package com.hubspot.jinjava.lib.exptest;

import com.hubspot.jinjava.doc.annotations.JinjavaDoc;
import com.hubspot.jinjava.doc.annotations.JinjavaParam;
import com.hubspot.jinjava.doc.annotations.JinjavaSnippet;
import com.hubspot.jinjava.interpret.JinjavaInterpreter;

@JinjavaDoc(
  value = "Return true if the given object is null / none",
  input = @JinjavaParam(value = "object", type = "object", required = true),
  snippets = {
    @JinjavaSnippet(
      code = "{% unless variable is none %}\n" +
      "     \n" +
      "{% endunless %}"
    ),
  }
)
public class IsNoneExpTest implements ExpTest {

  @Override
  public String getName() {
    return "none";
  }

  @Override
  public boolean evaluate(Object var, JinjavaInterpreter interpreter, Object... args) {
    return var == null;
  }
}