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/*
 * Copyright (c) CQSE GmbH
 *
 * 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.
 */

package org.conqat.engine.index.shared;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Set;

import org.conqat.lib.commons.collections.CollectionUtils;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

/** Result object that wraps a list of added and removed findings */
public class FindingDelta implements Serializable {

	/** Version used for serialization. */
	private static final long serialVersionUID = 1;

	/** The name of the JSON property name for {@link #addedFindings}. */
	private static final String ADDED_FINDINGS_PROPERTY = "addedFindings";

	/** The name of the JSON property name for {@link #findingsInChangedCode}. */
	private static final String FINDINGS_IN_CHANGED_CODE_PROPERTY = "findingsInChangedCode";

	/** The name of the JSON property name for {@link #removedFindings}. */
	private static final String REMOVED_FINDINGS_PROPERTY = "removedFindings";

	/** The added findings. */
	@JsonProperty(ADDED_FINDINGS_PROPERTY)
	private final List addedFindings;

	/** The findings in changed code. */
	@JsonProperty(FINDINGS_IN_CHANGED_CODE_PROPERTY)
	private final List findingsInChangedCode;

	/** The removed findings. */
	@JsonProperty(REMOVED_FINDINGS_PROPERTY)
	private final List removedFindings;

	/** Creates a {@link FindingDelta}. */
	public static FindingDelta create(Collection addedFindings,
			Collection findingsInChangedCode, Collection removedFindings) {
		return new FindingDelta(addedFindings, findingsInChangedCode, removedFindings);
	}

	@JsonCreator
	public FindingDelta(@JsonProperty(ADDED_FINDINGS_PROPERTY) Collection addedFindings,
			@JsonProperty(FINDINGS_IN_CHANGED_CODE_PROPERTY) Collection findingsInChangedCode,
			@JsonProperty(REMOVED_FINDINGS_PROPERTY) Collection removedFindings) {
		this.addedFindings = new ArrayList<>(addedFindings);
		this.findingsInChangedCode = new ArrayList<>(findingsInChangedCode);
		this.removedFindings = new ArrayList<>(removedFindings);
	}

	/** Returns addedFindings. */
	public List getAddedFindings() {
		return addedFindings;
	}

	/** Returns findingsInChangedCode. */
	public List getFindingsInChangedCode() {
		return findingsInChangedCode;
	}

	/** Returns removedFindings. */
	public List getRemovedFindings() {
		return removedFindings;
	}

	/** Returns numberOfAddedFindings. */
	public int getNumberOfAddedFindings() {
		return addedFindings.size();
	}

	/** Returns numberOfFindingsInChangedCode. */
	public int getNumberOfFindingsInChangedCode() {
		return findingsInChangedCode.size();
	}

	/** Returns numberOfRemovedFindings. */
	public int getNumberOfRemovedFindings() {
		return removedFindings.size();
	}

	/** Returns all findings that are part of this delta. */
	public Set getAllFindings() {
		return CollectionUtils.unionSet(addedFindings, findingsInChangedCode, removedFindings);
	}
}