Examples with StellarResult org.apache.metron.stellar.common.shell.StellarResult used on opensource projects

Example 6 with StellarResult

use of org.apache.metron.stellar.common.shell.StellarResult in project metron by apache.

the class MagicListGlobalsTest method testWithNoGlobals.

@Test
public void testWithNoGlobals() {
    // get all globals
    StellarResult result = executor.execute("%globals");
    // validate the result
    assertTrue(result.isSuccess());
    assertTrue(result.getValue().isPresent());
    String out = ConversionUtils.convert(result.getValue().get(), String.class);
    assertEquals("{}", out);
}

Example 7 with StellarResult

use of org.apache.metron.stellar.common.shell.StellarResult in project metron by apache.

the class MagicListGlobalsTest method test.

@Test
public void test() {
    // define some globals
    executor.getGlobalConfig().put("x", 2);
    // get all globals
    StellarResult result = executor.execute("%globals");
    // validate the result
    assertTrue(result.isSuccess());
    assertTrue(result.getValue().isPresent());
    String out = ConversionUtils.convert(result.getValue().get(), String.class);
    assertEquals("{x=2}", out);
}

Example 8 with StellarResult

use of org.apache.metron.stellar.common.shell.StellarResult in project metron by apache.

the class MagicListVariablesTest method test.

@Test
public void test() {
    // define some vars
    executor.execute("x := 2 + 2");
    StellarResult result = executor.execute("%vars");
    // validate the result
    assertTrue(result.isSuccess());
    assertTrue(result.getValue().isPresent());
    // validate the list of vars
    String vars = ConversionUtils.convert(result.getValue().get(), String.class);
    assertEquals("x = 4 via `2 + 2`", vars);
}

Example 9 with StellarResult

use of org.apache.metron.stellar.common.shell.StellarResult in project metron by apache.

the class MagicListVariablesTest method testWithNoVars.

@Test
public void testWithNoVars() {
    // there are no vars defined
    StellarResult result = executor.execute("%vars");
    // validate the result
    assertTrue(result.isSuccess());
    assertTrue(result.getValue().isPresent());
    // validate the list of vars
    String vars = ConversionUtils.convert(result.getValue().get(), String.class);
    assertEquals("", vars);
}

Example 10 with StellarResult

use of org.apache.metron.stellar.common.shell.StellarResult in project metron by apache.

the class AssignmentCommand method execute.

/**
 * Handles variable assignment.
 * @param input The assignment expression to execute.
 * @param executor A stellar execution environment.
 * @return
 */
@Override
public StellarResult execute(String input, StellarShellExecutor executor) {
    assert StellarAssignment.isAssignment(input);
    // extract the variable and assignment expression
    StellarAssignment assignment = StellarAssignment.from(input);
    String varName = assignment.getVariable();
    String varExpr = assignment.getStatement();
    // execute the stellar expression
    StellarResult result = executor.execute(varExpr);
    if (result.isSuccess()) {
        Object value = null;
        if (result.getValue().isPresent()) {
            value = result.getValue().get();
        } else if (result.isValueNull()) {
            value = null;
        }
        // variable assignment
        executor.assign(varName, value, Optional.of(varExpr));
        return result;
    } else {
        return result;
    }
}