/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.camp.spi.pdp;
import java.util.Map;
import org.apache.brooklyn.camp.BasicCampPlatform;
import org.apache.brooklyn.camp.spi.resolve.PlanInterpreter.PlanInterpreterAdapter;
import org.apache.brooklyn.camp.spi.resolve.interpret.PlanInterpretationNode;
import org.apache.brooklyn.util.stream.Streams;
import org.apache.brooklyn.util.text.Strings;
import org.apache.brooklyn.util.yaml.Yamls;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.Test;
@Test
public class DeploymentPlanToyInterpreterTest {
private static final Logger log = LoggerFactory.getLogger(DeploymentPlanToyInterpreterTest.class);
/**
* Allows testing:
*
* $sample:foo becomes "bar"
* $sample:caps:x capitalises the argument x
* $sample:ignore as key causes key-value to be dropped (and value 0 for good measure)
* $sample:reset causes containing map or list to be cleared at that point
* $sample:remove as key causes argument as map to be dropped
*/
public static class ToyInterpreter extends PlanInterpreterAdapter {
@Override
public boolean isInterestedIn(PlanInterpretationNode node) {
return node.matchesPrefix("$sample:");
}
@Override
public void applyYamlPrimitive(PlanInterpretationNode node) {
if (node.matchesLiteral("$sample:foo")) node.setNewValue("bar").exclude();
if (node.matchesPrefix("$sample:caps:")) {
node.setNewValue(Strings.removeFromStart(node.getNewValue().toString(), "$sample:caps:").toUpperCase()).exclude();
}
}
@Override
public boolean applyMapBefore(PlanInterpretationNode node, Map<Object, Object> mapIn) {
if (node.matchesLiteral("$sample:ignore"))
// replace
mapIn.put("$sample:ignore", 0);
return super.applyMapBefore(node, mapIn);
}
@Override
public boolean applyMapEntry(PlanInterpretationNode node, Map<Object, Object> mapIn, Map<Object, Object> mapOut,
PlanInterpretationNode key, PlanInterpretationNode value) {
if (key.matchesLiteral("$sample:ignore")) {
Assert.assertEquals(value.getNewValue(), 0);
return false;
}
if (key.matchesLiteral("$sample:reset")) {
mapOut.clear();
return false;
}
return super.applyMapEntry(node, mapIn, mapOut, key, value);
}
@SuppressWarnings("rawtypes")
@Override
public void applyMapAfter(PlanInterpretationNode node, Map<Object, Object> mapIn, Map<Object, Object> mapOut) {
if (mapOut.containsKey("$sample:remove")) {
Map toRemove = (Map) mapOut.get("$sample:remove");
for (Object vv: toRemove.keySet()) mapOut.remove(vv);
mapOut.remove("$sample:remove");
}
}
}
@SuppressWarnings("unchecked")
public void testToyInterpreter() {
@SuppressWarnings("rawtypes")
Map y1 = Yamls.getAs( Yamls.parseAll( Streams.reader(getClass().getResourceAsStream("yaml-sample-toy-interpreter.yaml"))), Map.class );
log.info("pre-interpreter have: "+y1);
BasicCampPlatform p = new BasicCampPlatform();
p.pdp().addInterpreter(new ToyInterpreter());
Map<String, Object> y2 = p.pdp().applyInterpreters(y1);
log.info("interpreter gives: "+y2);
Map<String, Object> y3 = Yamls.getAs( Yamls.parseAll( Streams.reader(getClass().getResourceAsStream("yaml-sample-toy-interpreter-result.yaml"))), Map.class );
Assert.assertEquals(y2, y3);
}
}