com.firefly.template.function.LengthFunction Maven / Gradle / Ivy
package com.firefly.template.function;
import java.io.OutputStream;
import java.lang.reflect.Array;
import java.util.Collection;
import com.firefly.template.Function;
import com.firefly.template.Model;
public class LengthFunction implements Function {
private String charset;
public LengthFunction(String charset) {
this.charset = charset;
}
@Override
public void render(Model model, OutputStream out, Object... obj)
throws Throwable {
Object o = obj[0];
if(o != null) {
if(o instanceof String)
out.write(String.valueOf(((String)o).length()).getBytes(charset));
else if(o instanceof Collection)
out.write(String.valueOf(((Collection)o).size()).getBytes(charset));
else if(o.getClass().isArray())
out.write(String.valueOf(Array.getLength(o)).getBytes(charset));
}
}
}