/** * Generated from platform:/resource/hu.bme.mit.inf.dslreasoner.domains.satellite/src/hu/bme/mit/inf/dslreasoner/domains/satellite/queries/SatelliteQueries.vql */ package hu.bme.mit.inf.dslreasoner.domains.satellite.queries; import hu.bme.mit.inf.dslreasoner.domains.satellite.CubeSat3U; import hu.bme.mit.inf.dslreasoner.domains.satellite.queries.internal.CommSubsystemBandUhf; import hu.bme.mit.inf.dslreasoner.domains.satellite.queries.internal.GroundStationNetwork; import java.util.Arrays; import java.util.Collection; import java.util.LinkedHashSet; import java.util.List; import java.util.Objects; import java.util.Optional; import java.util.Set; import java.util.function.Consumer; import java.util.stream.Collectors; import java.util.stream.Stream; import org.apache.log4j.Logger; import org.eclipse.emf.ecore.EClass; import org.eclipse.viatra.query.runtime.api.IPatternMatch; import org.eclipse.viatra.query.runtime.api.IQuerySpecification; import org.eclipse.viatra.query.runtime.api.ViatraQueryEngine; import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFPQuery; import org.eclipse.viatra.query.runtime.api.impl.BaseGeneratedEMFQuerySpecification; import org.eclipse.viatra.query.runtime.api.impl.BaseMatcher; import org.eclipse.viatra.query.runtime.api.impl.BasePatternMatch; import org.eclipse.viatra.query.runtime.emf.types.EClassTransitiveInstancesKey; import org.eclipse.viatra.query.runtime.emf.types.EStructuralFeatureInstancesKey; import org.eclipse.viatra.query.runtime.matchers.backend.QueryEvaluationHint; import org.eclipse.viatra.query.runtime.matchers.psystem.PBody; import org.eclipse.viatra.query.runtime.matchers.psystem.PVariable; import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.PAnnotation; import org.eclipse.viatra.query.runtime.matchers.psystem.annotations.ParameterReference; import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.Equality; import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.ExportedParameter; import org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.NegativePatternCall; import org.eclipse.viatra.query.runtime.matchers.psystem.basicenumerables.TypeConstraint; import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameter; import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PParameterDirection; import org.eclipse.viatra.query.runtime.matchers.psystem.queries.PVisibility; import org.eclipse.viatra.query.runtime.matchers.tuple.Tuple; import org.eclipse.viatra.query.runtime.matchers.tuple.Tuples; import org.eclipse.viatra.query.runtime.util.ViatraQueryLoggingUtil; /** * A pattern-specific query specification that can instantiate Matcher in a type-safe way. * *

Original source: *

 *         // 3U CubeSats are assumed to only be able to downlink to Earth using an X-band trasmitter,
 *         // but cross-link using UHF
 *         
 *         {@literal @}Constraint(severity = "error", key = {Sat},
 *         	message = "3U CubeSats can only cross-link using UHF.")
 *         pattern threeUCubeSatWithNonUhfCrossLink(Sat : CubeSat3U) {
 *         	CommunicatingElement.commSubsystem(Sat, SourceComm);
 *         	neg find commSubsystemBandUhf(SourceComm);
 *         	DirectedCommunicationLink.source(Link, SourceComm);
 *         	DirectedCommunicationLink.target(Link, TargetComm);
 *         	CommunicatingElement.commSubsystem(Target, TargetComm);
 *         	neg find groundStationNetwork(Target);
 *         }
 * 
* * @see Matcher * @see Match * */ @SuppressWarnings("all") public final class ThreeUCubeSatWithNonUhfCrossLink extends BaseGeneratedEMFQuerySpecification { /** * Pattern-specific match representation of the hu.bme.mit.inf.dslreasoner.domains.satellite.queries.threeUCubeSatWithNonUhfCrossLink pattern, * to be used in conjunction with {@link Matcher}. * *

Class fields correspond to parameters of the pattern. Fields with value null are considered unassigned. * Each instance is a (possibly partial) substitution of pattern parameters, * usable to represent a match of the pattern in the result of a query, * or to specify the bound (fixed) input parameters when issuing a query. * * @see Matcher * */ public static abstract class Match extends BasePatternMatch { private CubeSat3U fSat; private static List parameterNames = makeImmutableList("Sat"); private Match(final CubeSat3U pSat) { this.fSat = pSat; } @Override public Object get(final String parameterName) { if ("Sat".equals(parameterName)) return this.fSat; return null; } public CubeSat3U getSat() { return this.fSat; } @Override public boolean set(final String parameterName, final Object newValue) { if (!isMutable()) throw new java.lang.UnsupportedOperationException(); if ("Sat".equals(parameterName) ) { this.fSat = (CubeSat3U) newValue; return true; } return false; } public void setSat(final CubeSat3U pSat) { if (!isMutable()) throw new java.lang.UnsupportedOperationException(); this.fSat = pSat; } @Override public String patternName() { return "hu.bme.mit.inf.dslreasoner.domains.satellite.queries.threeUCubeSatWithNonUhfCrossLink"; } @Override public List parameterNames() { return ThreeUCubeSatWithNonUhfCrossLink.Match.parameterNames; } @Override public Object[] toArray() { return new Object[]{fSat}; } @Override public ThreeUCubeSatWithNonUhfCrossLink.Match toImmutable() { return isMutable() ? newMatch(fSat) : this; } @Override public String prettyPrint() { StringBuilder result = new StringBuilder(); result.append("\"Sat\"=" + prettyPrintValue(fSat)); return result.toString(); } @Override public int hashCode() { return Objects.hash(fSat); } @Override public boolean equals(final Object obj) { if (this == obj) return true; if (obj == null) { return false; } if ((obj instanceof ThreeUCubeSatWithNonUhfCrossLink.Match)) { ThreeUCubeSatWithNonUhfCrossLink.Match other = (ThreeUCubeSatWithNonUhfCrossLink.Match) obj; return Objects.equals(fSat, other.fSat); } else { // this should be infrequent if (!(obj instanceof IPatternMatch)) { return false; } IPatternMatch otherSig = (IPatternMatch) obj; return Objects.equals(specification(), otherSig.specification()) && Arrays.deepEquals(toArray(), otherSig.toArray()); } } @Override public ThreeUCubeSatWithNonUhfCrossLink specification() { return ThreeUCubeSatWithNonUhfCrossLink.instance(); } /** * Returns an empty, mutable match. * Fields of the mutable match can be filled to create a partial match, usable as matcher input. * * @return the empty match. * */ public static ThreeUCubeSatWithNonUhfCrossLink.Match newEmptyMatch() { return new Mutable(null); } /** * Returns a mutable (partial) match. * Fields of the mutable match can be filled to create a partial match, usable as matcher input. * * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return the new, mutable (partial) match object. * */ public static ThreeUCubeSatWithNonUhfCrossLink.Match newMutableMatch(final CubeSat3U pSat) { return new Mutable(pSat); } /** * Returns a new (partial) match. * This can be used e.g. to call the matcher with a partial match. *

The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return the (partial) match object. * */ public static ThreeUCubeSatWithNonUhfCrossLink.Match newMatch(final CubeSat3U pSat) { return new Immutable(pSat); } private static final class Mutable extends ThreeUCubeSatWithNonUhfCrossLink.Match { Mutable(final CubeSat3U pSat) { super(pSat); } @Override public boolean isMutable() { return true; } } private static final class Immutable extends ThreeUCubeSatWithNonUhfCrossLink.Match { Immutable(final CubeSat3U pSat) { super(pSat); } @Override public boolean isMutable() { return false; } } } /** * Generated pattern matcher API of the hu.bme.mit.inf.dslreasoner.domains.satellite.queries.threeUCubeSatWithNonUhfCrossLink pattern, * providing pattern-specific query methods. * *

Use the pattern matcher on a given model via {@link #on(ViatraQueryEngine)}, * e.g. in conjunction with {@link ViatraQueryEngine#on(QueryScope)}. * *

Matches of the pattern will be represented as {@link Match}. * *

Original source: *

   * // 3U CubeSats are assumed to only be able to downlink to Earth using an X-band trasmitter,
   * // but cross-link using UHF
   * 
   * {@literal @}Constraint(severity = "error", key = {Sat},
   * 	message = "3U CubeSats can only cross-link using UHF.")
   * pattern threeUCubeSatWithNonUhfCrossLink(Sat : CubeSat3U) {
   * 	CommunicatingElement.commSubsystem(Sat, SourceComm);
   * 	neg find commSubsystemBandUhf(SourceComm);
   * 	DirectedCommunicationLink.source(Link, SourceComm);
   * 	DirectedCommunicationLink.target(Link, TargetComm);
   * 	CommunicatingElement.commSubsystem(Target, TargetComm);
   * 	neg find groundStationNetwork(Target);
   * }
   * 
* * @see Match * @see ThreeUCubeSatWithNonUhfCrossLink * */ public static class Matcher extends BaseMatcher { /** * Initializes the pattern matcher within an existing VIATRA Query engine. * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned. * * @param engine the existing VIATRA Query engine in which this matcher will be created. * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation * */ public static ThreeUCubeSatWithNonUhfCrossLink.Matcher on(final ViatraQueryEngine engine) { // check if matcher already exists Matcher matcher = engine.getExistingMatcher(querySpecification()); if (matcher == null) { matcher = (Matcher)engine.getMatcher(querySpecification()); } return matcher; } /** * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation * @return an initialized matcher * @noreference This method is for internal matcher initialization by the framework, do not call it manually. * */ public static ThreeUCubeSatWithNonUhfCrossLink.Matcher create() { return new Matcher(); } private static final int POSITION_SAT = 0; private static final Logger LOGGER = ViatraQueryLoggingUtil.getLogger(ThreeUCubeSatWithNonUhfCrossLink.Matcher.class); /** * Initializes the pattern matcher within an existing VIATRA Query engine. * If the pattern matcher is already constructed in the engine, only a light-weight reference is returned. * * @param engine the existing VIATRA Query engine in which this matcher will be created. * @throws ViatraQueryRuntimeException if an error occurs during pattern matcher creation * */ private Matcher() { super(querySpecification()); } /** * Returns the set of all matches of the pattern that conform to the given fixed values of some parameters. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return matches represented as a Match object. * */ public Collection getAllMatches(final CubeSat3U pSat) { return rawStreamAllMatches(new Object[]{pSat}).collect(Collectors.toSet()); } /** * Returns a stream of all matches of the pattern that conform to the given fixed values of some parameters. *

* NOTE: It is important not to modify the source model while the stream is being processed. * If the match set of the pattern changes during processing, the contents of the stream is undefined. * In such cases, either rely on {@link #getAllMatches()} or collect the results of the stream in end-user code. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return a stream of matches represented as a Match object. * */ public Stream streamAllMatches(final CubeSat3U pSat) { return rawStreamAllMatches(new Object[]{pSat}); } /** * Returns an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters. * Neither determinism nor randomness of selection is guaranteed. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return a match represented as a Match object, or null if no match is found. * */ public Optional getOneArbitraryMatch(final CubeSat3U pSat) { return rawGetOneArbitraryMatch(new Object[]{pSat}); } /** * Indicates whether the given combination of specified pattern parameters constitute a valid pattern match, * under any possible substitution of the unspecified parameters (if any). * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return true if the input is a valid (partial) match of the pattern. * */ public boolean hasMatch(final CubeSat3U pSat) { return rawHasMatch(new Object[]{pSat}); } /** * Returns the number of all matches of the pattern that conform to the given fixed values of some parameters. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return the number of pattern matches found. * */ public int countMatches(final CubeSat3U pSat) { return rawCountMatches(new Object[]{pSat}); } /** * Executes the given processor on an arbitrarily chosen match of the pattern that conforms to the given fixed values of some parameters. * Neither determinism nor randomness of selection is guaranteed. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @param processor the action that will process the selected match. * @return true if the pattern has at least one match with the given parameter values, false if the processor was not invoked * */ public boolean forOneArbitraryMatch(final CubeSat3U pSat, final Consumer processor) { return rawForOneArbitraryMatch(new Object[]{pSat}, processor); } /** * Returns a new (partial) match. * This can be used e.g. to call the matcher with a partial match. *

The returned match will be immutable. Use {@link #newEmptyMatch()} to obtain a mutable match object. * @param pSat the fixed value of pattern parameter Sat, or null if not bound. * @return the (partial) match object. * */ public ThreeUCubeSatWithNonUhfCrossLink.Match newMatch(final CubeSat3U pSat) { return ThreeUCubeSatWithNonUhfCrossLink.Match.newMatch(pSat); } /** * Retrieve the set of values that occur in matches for Sat. * @return the Set of all values or empty set if there are no matches * */ protected Stream rawStreamAllValuesOfSat(final Object[] parameters) { return rawStreamAllValues(POSITION_SAT, parameters).map(CubeSat3U.class::cast); } /** * Retrieve the set of values that occur in matches for Sat. * @return the Set of all values or empty set if there are no matches * */ public Set getAllValuesOfSat() { return rawStreamAllValuesOfSat(emptyArray()).collect(Collectors.toSet()); } /** * Retrieve the set of values that occur in matches for Sat. * @return the Set of all values or empty set if there are no matches * */ public Stream streamAllValuesOfSat() { return rawStreamAllValuesOfSat(emptyArray()); } @Override protected ThreeUCubeSatWithNonUhfCrossLink.Match tupleToMatch(final Tuple t) { try { return ThreeUCubeSatWithNonUhfCrossLink.Match.newMatch((CubeSat3U) t.get(POSITION_SAT)); } catch(ClassCastException e) { LOGGER.error("Element(s) in tuple not properly typed!",e); return null; } } @Override protected ThreeUCubeSatWithNonUhfCrossLink.Match arrayToMatch(final Object[] match) { try { return ThreeUCubeSatWithNonUhfCrossLink.Match.newMatch((CubeSat3U) match[POSITION_SAT]); } catch(ClassCastException e) { LOGGER.error("Element(s) in array not properly typed!",e); return null; } } @Override protected ThreeUCubeSatWithNonUhfCrossLink.Match arrayToMatchMutable(final Object[] match) { try { return ThreeUCubeSatWithNonUhfCrossLink.Match.newMutableMatch((CubeSat3U) match[POSITION_SAT]); } catch(ClassCastException e) { LOGGER.error("Element(s) in array not properly typed!",e); return null; } } /** * @return the singleton instance of the query specification of this pattern * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded * */ public static IQuerySpecification querySpecification() { return ThreeUCubeSatWithNonUhfCrossLink.instance(); } } private ThreeUCubeSatWithNonUhfCrossLink() { super(GeneratedPQuery.INSTANCE); } /** * @return the singleton instance of the query specification * @throws ViatraQueryRuntimeException if the pattern definition could not be loaded * */ public static ThreeUCubeSatWithNonUhfCrossLink instance() { try{ return LazyHolder.INSTANCE; } catch (ExceptionInInitializerError err) { throw processInitializerError(err); } } @Override protected ThreeUCubeSatWithNonUhfCrossLink.Matcher instantiate(final ViatraQueryEngine engine) { return ThreeUCubeSatWithNonUhfCrossLink.Matcher.on(engine); } @Override public ThreeUCubeSatWithNonUhfCrossLink.Matcher instantiate() { return ThreeUCubeSatWithNonUhfCrossLink.Matcher.create(); } @Override public ThreeUCubeSatWithNonUhfCrossLink.Match newEmptyMatch() { return ThreeUCubeSatWithNonUhfCrossLink.Match.newEmptyMatch(); } @Override public ThreeUCubeSatWithNonUhfCrossLink.Match newMatch(final Object... parameters) { return ThreeUCubeSatWithNonUhfCrossLink.Match.newMatch((hu.bme.mit.inf.dslreasoner.domains.satellite.CubeSat3U) parameters[0]); } /** * Inner class allowing the singleton instance of {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.satellite.queries.ThreeUCubeSatWithNonUhfCrossLink (visibility: PUBLIC, simpleName: ThreeUCubeSatWithNonUhfCrossLink, identifier: hu.bme.mit.inf.dslreasoner.domains.satellite.queries.ThreeUCubeSatWithNonUhfCrossLink, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.satellite.queries) (interface: false, strictFloatingPoint: false, anonymous: false)} to be created * not at the class load time of the outer class, * but rather at the first call to {@link JvmGenericType: hu.bme.mit.inf.dslreasoner.domains.satellite.queries.ThreeUCubeSatWithNonUhfCrossLink (visibility: PUBLIC, simpleName: ThreeUCubeSatWithNonUhfCrossLink, identifier: hu.bme.mit.inf.dslreasoner.domains.satellite.queries.ThreeUCubeSatWithNonUhfCrossLink, deprecated: ) (abstract: false, static: false, final: true, packageName: hu.bme.mit.inf.dslreasoner.domains.satellite.queries) (interface: false, strictFloatingPoint: false, anonymous: false)#instance()}. * *

This workaround is required e.g. to support recursion. * */ private static class LazyHolder { private static final ThreeUCubeSatWithNonUhfCrossLink INSTANCE = new ThreeUCubeSatWithNonUhfCrossLink(); /** * Statically initializes the query specification after the field {@link #INSTANCE} is assigned. * This initialization order is required to support indirect recursion. * *

The static initializer is defined using a helper field to work around limitations of the code generator. * */ private static final Object STATIC_INITIALIZER = ensureInitialized(); public static Object ensureInitialized() { INSTANCE.ensureInitializedInternal(); return null; } } private static class GeneratedPQuery extends BaseGeneratedEMFPQuery { private static final ThreeUCubeSatWithNonUhfCrossLink.GeneratedPQuery INSTANCE = new GeneratedPQuery(); private final PParameter parameter_Sat = new PParameter("Sat", "hu.bme.mit.inf.dslreasoner.domains.satellite.CubeSat3U", new EClassTransitiveInstancesKey((EClass)getClassifierLiteralSafe("http://www.example.org/satellite", "CubeSat3U")), PParameterDirection.INOUT); private final List parameters = Arrays.asList(parameter_Sat); private GeneratedPQuery() { super(PVisibility.PUBLIC); } @Override public String getFullyQualifiedName() { return "hu.bme.mit.inf.dslreasoner.domains.satellite.queries.threeUCubeSatWithNonUhfCrossLink"; } @Override public List getParameterNames() { return Arrays.asList("Sat"); } @Override public List getParameters() { return parameters; } @Override public Set doGetContainedBodies() { setEvaluationHints(new QueryEvaluationHint(null, QueryEvaluationHint.BackendRequirement.UNSPECIFIED)); Set bodies = new LinkedHashSet<>(); { PBody body = new PBody(this); PVariable var_Sat = body.getOrCreateVariableByName("Sat"); PVariable var_SourceComm = body.getOrCreateVariableByName("SourceComm"); PVariable var_Link = body.getOrCreateVariableByName("Link"); PVariable var_TargetComm = body.getOrCreateVariableByName("TargetComm"); PVariable var_Target = body.getOrCreateVariableByName("Target"); new TypeConstraint(body, Tuples.flatTupleOf(var_Sat), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CubeSat3U"))); body.setSymbolicParameters(Arrays.asList( new ExportedParameter(body, var_Sat, parameter_Sat) )); // CommunicatingElement.commSubsystem(Sat, SourceComm) new TypeConstraint(body, Tuples.flatTupleOf(var_Sat), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommunicatingElement"))); PVariable var__virtual_0_ = body.getOrCreateVariableByName(".virtual{0}"); new TypeConstraint(body, Tuples.flatTupleOf(var_Sat, var__virtual_0_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/satellite", "CommunicatingElement", "commSubsystem"))); new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_0_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommSubsystem"))); new Equality(body, var__virtual_0_, var_SourceComm); // neg find commSubsystemBandUhf(SourceComm) new NegativePatternCall(body, Tuples.flatTupleOf(var_SourceComm), CommSubsystemBandUhf.instance().getInternalQueryRepresentation()); // DirectedCommunicationLink.source(Link, SourceComm) new TypeConstraint(body, Tuples.flatTupleOf(var_Link), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "DirectedCommunicationLink"))); PVariable var__virtual_1_ = body.getOrCreateVariableByName(".virtual{1}"); new TypeConstraint(body, Tuples.flatTupleOf(var_Link, var__virtual_1_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/satellite", "DirectedCommunicationLink", "source"))); new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_1_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommSubsystem"))); new Equality(body, var__virtual_1_, var_SourceComm); // DirectedCommunicationLink.target(Link, TargetComm) new TypeConstraint(body, Tuples.flatTupleOf(var_Link), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "DirectedCommunicationLink"))); PVariable var__virtual_2_ = body.getOrCreateVariableByName(".virtual{2}"); new TypeConstraint(body, Tuples.flatTupleOf(var_Link, var__virtual_2_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/satellite", "DirectedCommunicationLink", "target"))); new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_2_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommSubsystem"))); new Equality(body, var__virtual_2_, var_TargetComm); // CommunicatingElement.commSubsystem(Target, TargetComm) new TypeConstraint(body, Tuples.flatTupleOf(var_Target), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommunicatingElement"))); PVariable var__virtual_3_ = body.getOrCreateVariableByName(".virtual{3}"); new TypeConstraint(body, Tuples.flatTupleOf(var_Target, var__virtual_3_), new EStructuralFeatureInstancesKey(getFeatureLiteral("http://www.example.org/satellite", "CommunicatingElement", "commSubsystem"))); new TypeConstraint(body, Tuples.flatTupleOf(var__virtual_3_), new EClassTransitiveInstancesKey((EClass)getClassifierLiteral("http://www.example.org/satellite", "CommSubsystem"))); new Equality(body, var__virtual_3_, var_TargetComm); // neg find groundStationNetwork(Target) new NegativePatternCall(body, Tuples.flatTupleOf(var_Target), GroundStationNetwork.instance().getInternalQueryRepresentation()); bodies.add(body); } { PAnnotation annotation = new PAnnotation("Constraint"); annotation.addAttribute("severity", "error"); annotation.addAttribute("key", Arrays.asList(new Object[] { new ParameterReference("Sat") })); annotation.addAttribute("message", "3U CubeSats can only cross-link using UHF."); addAnnotation(annotation); } return bodies; } } }