Examples with RelJson org.apache.calcite.rel.externalize.RelJson used on opensource projects

Example 1 with RelJson

use of org.apache.calcite.rel.externalize.RelJson in project calcite by apache.

the class RelOptPlanReaderTest method testTypeToClass.

@Test
public void testTypeToClass() {
    RelJson relJson = new RelJson(null);
    // in org.apache.calcite.rel package
    assertThat(relJson.classToTypeName(LogicalProject.class), is("LogicalProject"));
    assertThat(relJson.typeNameToClass("LogicalProject"), sameInstance((Class) LogicalProject.class));
    // in org.apache.calcite.adapter.jdbc.JdbcRules outer class
    assertThat(relJson.classToTypeName(JdbcRules.JdbcProject.class), is("JdbcProject"));
    assertThat(relJson.typeNameToClass("JdbcProject"), equalTo((Class) JdbcRules.JdbcProject.class));
    try {
        Class clazz = relJson.typeNameToClass("NonExistentRel");
        fail("expected exception, got " + clazz);
    } catch (RuntimeException e) {
        assertThat(e.getMessage(), is("unknown type NonExistentRel"));
    }
    try {
        Class clazz = relJson.typeNameToClass("org.apache.calcite.rel.NonExistentRel");
        fail("expected exception, got " + clazz);
    } catch (RuntimeException e) {
        assertThat(e.getMessage(), is("unknown type org.apache.calcite.rel.NonExistentRel"));
    }
    // In this class; no special treatment. Note: '$MyRel' not '.MyRel'.
    assertThat(relJson.classToTypeName(MyRel.class), is("org.apache.calcite.plan.RelOptPlanReaderTest$MyRel"));
    assertThat(relJson.typeNameToClass(MyRel.class.getName()), equalTo((Class) MyRel.class));
    // Using canonical name (with '$'), not found
    try {
        Class clazz = relJson.typeNameToClass(MyRel.class.getCanonicalName());
        fail("expected exception, got " + clazz);
    } catch (RuntimeException e) {
        assertThat(e.getMessage(), is("unknown type org.apache.calcite.plan.RelOptPlanReaderTest.MyRel"));
    }
}