How to return enum value by 2 parameters in java

I have such enum class in java

    public enum MockTypes
    {
        // Atlantis mocks
        ATLANTIS_VERIFY("ATLANTIS", "verify"),
        ATLANTIS_CREATE_RECORD("ATLANTIS", "createRecord"),

    ...

        private String m_adaptor;

        private String m_step;

private MockTypes( String adaptor, String step)
    {
        m_adaptor = adaptor;
        m_step = step;
    }

             public String getAdaptor()
        {
            return m_adaptor;
        }

        public String getStep()
        {
            return m_step;
        }

I have to implement method that returns enum value by adaptor and step parameter.

public MockTypes getMockTypeByName(String adaptor, String step)

but I have no idea how. Could someone help me?