| 1 | package de.uka.ipd.sdq.probespec.framework.probes; |
| 2 | |
| 3 | import java.util.HashMap; |
| 4 | import java.util.Map; |
| 5 | |
| 6 | import de.uka.ipd.sdq.probespec.framework.ProbeType; |
| 7 | import de.uka.ipd.sdq.probespec.framework.exceptions.ProbeStrategyNotFoundException; |
| 8 | |
| 9 | /** |
| 10 | * Basic implementation of the {@link IProbeStrategyRegistry} interface. |
| 11 | * |
| 12 | * @author Philipp Merkle |
| 13 | * |
| 14 | */ |
| 15 | public class ProbeStrategyRegistry implements IProbeStrategyRegistry { |
| 16 | |
| 17 | private Map<ProbeTypeEntityPair, IProbeStrategy> strategiesMap; |
| 18 | |
| 19 | public ProbeStrategyRegistry() { |
| 20 | strategiesMap = new HashMap<ProbeTypeEntityPair, IProbeStrategy>(); |
| 21 | } |
| 22 | |
| 23 | @Override |
| 24 | public IProbeStrategy getProbeStrategy(ProbeType type, |
| 25 | Object measurableEntity) { |
| 26 | ProbeTypeEntityPair pair = new ProbeTypeEntityPair(type, |
| 27 | measurableEntity); |
| 28 | IProbeStrategy strategy = strategiesMap.get(pair); |
| 29 | if (strategy == null) |
| 30 | throw new ProbeStrategyNotFoundException( |
| 31 | "Could not find a ProbeStrategy for probe type " |
| 32 | + type.name() + " that is able to measure a " |
| 33 | + measurableEntity.getClass().getSimpleName()); |
| 34 | return strategy; |
| 35 | } |
| 36 | |
| 37 | @Override |
| 38 | public void registerProbeStrategy(IProbeStrategy strategy, ProbeType type, |
| 39 | Object measurableEntity) { |
| 40 | ProbeTypeEntityPair pair = new ProbeTypeEntityPair(type, |
| 41 | measurableEntity); |
| 42 | strategiesMap.put(pair, strategy); |
| 43 | } |
| 44 | |
| 45 | private class ProbeTypeEntityPair { |
| 46 | |
| 47 | private ProbeType type; |
| 48 | |
| 49 | private Object entity; |
| 50 | |
| 51 | public ProbeTypeEntityPair(ProbeType type, Object entity) { |
| 52 | this.type = type; |
| 53 | this.entity = entity; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public int hashCode() { |
| 58 | final int prime = 31; |
| 59 | int result = 1; |
| 60 | result = prime * result + getOuterType().hashCode(); |
| 61 | result = prime * result |
| 62 | + ((entity == null) ? 0 : entity.hashCode()); |
| 63 | result = prime * result + ((type == null) ? 0 : type.hashCode()); |
| 64 | return result; |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public boolean equals(Object obj) { |
| 69 | if (this == obj) { |
| 70 | return true; |
| 71 | } |
| 72 | if (obj == null) { |
| 73 | return false; |
| 74 | } |
| 75 | if (!(obj instanceof ProbeTypeEntityPair)) { |
| 76 | return false; |
| 77 | } |
| 78 | ProbeTypeEntityPair other = (ProbeTypeEntityPair) obj; |
| 79 | if (!getOuterType().equals(other.getOuterType())) { |
| 80 | return false; |
| 81 | } |
| 82 | if (entity == null) { |
| 83 | if (other.entity != null) { |
| 84 | return false; |
| 85 | } |
| 86 | } else if (!entity.equals(other.entity)) { |
| 87 | return false; |
| 88 | } |
| 89 | if (type == null) { |
| 90 | if (other.type != null) { |
| 91 | return false; |
| 92 | } |
| 93 | } else if (!type.equals(other.type)) { |
| 94 | return false; |
| 95 | } |
| 96 | return true; |
| 97 | } |
| 98 | |
| 99 | private ProbeStrategyRegistry getOuterType() { |
| 100 | return ProbeStrategyRegistry.this; |
| 101 | } |
| 102 | |
| 103 | } |
| 104 | |
| 105 | } |