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Utilities to present tracing results (encoded proofs) to the user
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package org.semanticweb.elk.matching.conclusions;

import org.semanticweb.elk.matching.root.IndexedContextRootMatchChain;

/*
 * #%L
 * ELK Proofs Package
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2011 - 2016 Department of Computer Science, University of Oxford
 * %%
 * Licensed 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.
 * #L%
 */

public class ConclusionMatchEquality
		implements ConclusionMatch.Visitor {

	private static class DefaultVisitor
			extends ConclusionMatchDummyVisitor {

		static boolean equals(IndexedContextRootMatchChain first,
				IndexedContextRootMatchChain second) {
			for (;;) {
				if (first == null) {
					return (second == null);
				}
				// else
				if (second == null) {
					return false;
				}
				// else
				if (!equals(first.getHead(), second.getHead())) {
					return false;
				}
				// else
				first = first.getTail();
				second = second.getTail();
			}
		}

		static boolean equals(int first, int second) {
			return first == second;
		}

		static boolean equals(Object first, Object second) {
			return first.equals(second);
		}

		@Override
		protected Boolean defaultVisit(ConclusionMatch conclusionMatch) {
			return false;
		}

	}

	public static boolean equals(ConclusionMatch first,
			ConclusionMatch second) {
		return first.accept(new ConclusionMatchEquality(second));
	}

	private final ConclusionMatch other_;

	private ConclusionMatchEquality(ConclusionMatch other) {
		this.other_ = other;
	}

	@Override
	public Boolean visit(final BackwardLinkMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(BackwardLinkMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getSourceMatch(),
								conclusionMatch.getSourceMatch());
			}
		});
	}

	@Override
	public Boolean visit(final BackwardLinkMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(BackwardLinkMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getRelationMatch(),
								conclusionMatch.getRelationMatch())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final BackwardLinkMatch3 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(BackwardLinkMatch3 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDestinationMatch(),
								conclusionMatch.getExtendedDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final BackwardLinkMatch4 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(BackwardLinkMatch4 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedSourceMatch(),
								conclusionMatch.getExtendedSourceMatch());
			}
		});
	}

	@Override
	public Boolean visit(final ClassInconsistencyMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ClassInconsistencyMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final ClassInconsistencyMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ClassInconsistencyMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDestinationMatch(),
								conclusionMatch.getExtendedDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final DisjointSubsumerMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(DisjointSubsumerMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final DisjointSubsumerMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(DisjointSubsumerMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDestinationMatch(),
								conclusionMatch.getExtendedDestinationMatch())
						&& equals(other.getDisjointExpressionsMatch(),
								conclusionMatch.getDisjointExpressionsMatch());
			}
		});
	}

	@Override
	public Boolean visit(final ForwardLinkMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ForwardLinkMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch())
						&& equals(other.getFullChainMatch(),
								conclusionMatch.getFullChainMatch())
						&& equals(other.getChainStartPos(),
								conclusionMatch.getChainStartPos());
			}
		});
	}

	@Override
	public Boolean visit(final ForwardLinkMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ForwardLinkMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getTargetMatch(),
								conclusionMatch.getTargetMatch());
			}
		});
	}

	@Override
	public Boolean visit(final ForwardLinkMatch3 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ForwardLinkMatch3 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedTargetMatch(),
								conclusionMatch.getExtendedTargetMatch());
			}
		});
	}

	@Override
	public Boolean visit(final ForwardLinkMatch4 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(ForwardLinkMatch4 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDomains(),
								conclusionMatch.getExtendedDomains());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedDisjointClassesAxiomMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedDisjointClassesAxiomMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedDisjointClassesAxiomMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedDisjointClassesAxiomMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getMemberMatches(),
								conclusionMatch.getMemberMatches());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedEquivalentClassesAxiomMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedEquivalentClassesAxiomMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedEquivalentClassesAxiomMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedEquivalentClassesAxiomMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getFirstMemberMatch(),
								conclusionMatch.getFirstMemberMatch())
						&& equals(other.getSecondMemberMatch(),
								conclusionMatch.getSecondMemberMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedObjectPropertyRangeAxiomMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedObjectPropertyRangeAxiomMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedObjectPropertyRangeAxiomMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedObjectPropertyRangeAxiomMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getPropertyMatch(),
								conclusionMatch.getPropertyMatch())
						&& equals(other.getRangeMatch(),
								conclusionMatch.getRangeMatch());
			}
		});
	}

	@Override
	public Boolean visit(final IndexedSubClassOfAxiomMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedSubClassOfAxiomMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(final IndexedSubClassOfAxiomMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedSubClassOfAxiomMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getSubClassMatch(),
								conclusionMatch.getSubClassMatch())
						&& equals(other.getSuperClassMatch(),
								conclusionMatch.getSuperClassMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedSubObjectPropertyOfAxiomMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedSubObjectPropertyOfAxiomMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(
			final IndexedSubObjectPropertyOfAxiomMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(IndexedSubObjectPropertyOfAxiomMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getSubPropertyChainMatch(),
								conclusionMatch.getSubPropertyChainMatch())
						&& equals(other.getSuperPropertyMatch(),
								conclusionMatch.getSuperPropertyMatch());
			}
		});
	}

	@Override
	public Boolean visit(final PropagationMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(PropagationMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch())
						&& equals(other.getSubDestinationMatch(),
								conclusionMatch.getSubDestinationMatch())
						&& equals(other.getCarryMatch(),
								conclusionMatch.getCarryMatch());
			}
		});
	}

	@Override
	public Boolean visit(final PropagationMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(PropagationMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDestinationMatch(),
								conclusionMatch.getExtendedDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(final PropertyRangeMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(PropertyRangeMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent());
			}
		});
	}

	@Override
	public Boolean visit(final PropertyRangeMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(PropertyRangeMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getPropertyMatch(),
								conclusionMatch.getPropertyMatch())
						&& equals(other.getRangeMatch(),
								conclusionMatch.getRangeMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final SubClassInclusionComposedMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubClassInclusionComposedMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch())
						&& equals(other.getSubsumerMatch(),
								conclusionMatch.getSubsumerMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final SubClassInclusionComposedMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubClassInclusionComposedMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getExtendedDestinationMatch(),
								conclusionMatch.getExtendedDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final SubClassInclusionDecomposedMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubClassInclusionDecomposedMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getDestinationMatch(),
								conclusionMatch.getDestinationMatch());
			}
		});
	}

	@Override
	public Boolean visit(
			final SubClassInclusionDecomposedMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubClassInclusionDecomposedMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getParent(),
								conclusionMatch.getParent())
						&& equals(other.getSubsumerMatch(),
								conclusionMatch.getSubsumerMatch());
			}
		});
	}

	@Override
	public Boolean visit(final SubPropertyChainMatch1 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubPropertyChainMatch1 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getFullSuperChainMatch(),
								conclusionMatch.getFullSuperChainMatch())
						&& equals(other.getSuperChainStartPos(),
								conclusionMatch.getSuperChainStartPos());
			}
		});
	}

	@Override
	public Boolean visit(final SubPropertyChainMatch2 conclusionMatch) {
		return other_.accept(new DefaultVisitor() {
			@Override
			public Boolean visit(SubPropertyChainMatch2 other) {
				return equals(other.getParent(), conclusionMatch.getParent())
						&& equals(other.getFullSubChainMatch(),
								conclusionMatch.getFullSubChainMatch())
						&& equals(other.getSubChainStartPos(),
								conclusionMatch.getSubChainStartPos());
			}
		});
	}

}