| package org.projectfloodlight.openflow.protocol.match; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.projectfloodlight.openflow.types.OFValueType; |
| |
| public class Prerequisite<T extends OFValueType<T>> { |
| private final MatchField<T> field; |
| private final Set<OFValueType<T>> values; |
| private boolean any; |
| |
| @SafeVarargs |
| public Prerequisite(MatchField<T> field, OFValueType<T>... values) { |
| this.values = new HashSet<OFValueType<T>>(); |
| this.field = field; |
| if (values == null || values.length == 0) { |
| this.any = true; |
| } else { |
| this.any = false; |
| for (OFValueType<T> value : values) { |
| this.values.add(value); |
| } |
| } |
| } |
| |
| /** |
| * Returns true if this prerequisite is satisfied by the given match object. |
| * |
| * @param match Match object |
| * @return true iff prerequisite is satisfied. |
| */ |
| public boolean isSatisfied(Match match) { |
| OFValueType<T> res = match.get(this.field); |
| if (res == null) |
| return false; |
| if (this.any) |
| return true; |
| if (this.values.contains(res)) { |
| return true; |
| } |
| return false; |
| } |
| |
| } |