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veraPDF PDF/A validation model implementation based on PDF parser.
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/**
 * This file is part of veraPDF Validation, a module of the veraPDF project.
 * Copyright (c) 2015, veraPDF Consortium 
 * All rights reserved.
 *
 * veraPDF Validation is free software: you can redistribute it and/or modify
 * it under the terms of either:
 *
 * The GNU General public license GPLv3+.
 * You should have received a copy of the GNU General Public License
 * along with veraPDF Validation as the LICENSE.GPL file in the root of the source
 * tree.  If not, see http://www.gnu.org/licenses/ or
 * https://www.gnu.org/licenses/gpl-3.0.en.html.
 *
 * The Mozilla Public License MPLv2+.
 * You should have received a copy of the Mozilla Public License along with
 * veraPDF Validation as the LICENSE.MPL file in the root of the source tree.
 * If a copy of the MPL was not distributed with this file, you can obtain one at
 * http://mozilla.org/MPL/2.0/.
 */
package org.verapdf.gf.model.impl.arlington;

import org.verapdf.cos.*;
import org.verapdf.model.alayer.*;
import org.verapdf.gf.model.impl.containers.StaticContainers;
import org.verapdf.tools.StaticResources;
import java.util.*;
import org.verapdf.pd.PDNameTreeNode;
import org.verapdf.as.ASAtom;
import java.util.stream.Collectors;
import org.verapdf.pd.structure.PDNumberTreeNode;

public class GFABead extends GFAObject implements ABead {

	public GFABead(COSBase baseObject, COSBase parentObject, String keyName) {
		super(baseObject, parentObject, keyName, "ABead");
	}

	@Override
	public List getLinkedObjects(String link) {
		switch (link) {
			case "N":
				return getN();
			case "P":
				return getP();
			case "T":
				return getT();
			case "V":
				return getV();
			default:
				return super.getLinkedObjects(link);
		}
	}

	private List getN() {
		switch (StaticContainers.getFlavour()) {
			case ARLINGTON1_1:
			case ARLINGTON1_2:
			case ARLINGTON1_3:
			case ARLINGTON1_4:
			case ARLINGTON1_5:
			case ARLINGTON1_6:
			case ARLINGTON1_7:
			case ARLINGTON2_0:
				return getN1_1();
			default:
				return Collections.emptyList();
		}
	}

	private List getN1_1() {
		COSObject object = getNValue();
		if (object == null) {
			return Collections.emptyList();
		}
		if (object.getType() == COSObjType.COS_DICT) {
			org.verapdf.model.baselayer.Object result = getNDictionary1_1(object.getDirectBase(), "N");
			List list = new ArrayList<>(1);
			if (result != null) {
				list.add(result);
			}
			return Collections.unmodifiableList(list);
		}
		return Collections.emptyList();
	}

	private org.verapdf.model.baselayer.Object getNDictionary1_1(COSBase base, String keyName) {
		switch (keyName) {
			case "0":
				return new GFABeadFirst(base, this.baseObject, keyName);
			default:
				return new GFABead(base, this.baseObject, keyName);
		}
	}

	private List getP() {
		switch (StaticContainers.getFlavour()) {
			case ARLINGTON1_1:
			case ARLINGTON1_2:
			case ARLINGTON1_3:
			case ARLINGTON1_4:
			case ARLINGTON1_5:
			case ARLINGTON1_6:
			case ARLINGTON1_7:
			case ARLINGTON2_0:
				return getP1_1();
			default:
				return Collections.emptyList();
		}
	}

	private List getP1_1() {
		COSObject object = getPValue();
		if (object == null) {
			return Collections.emptyList();
		}
		if (object.getType() == COSObjType.COS_DICT) {
			List list = new ArrayList<>(1);
			list.add(new GFAPageObject((COSDictionary)object.getDirectBase(), this.baseObject, "P"));
			return Collections.unmodifiableList(list);
		}
		return Collections.emptyList();
	}

	private List getT() {
		switch (StaticContainers.getFlavour()) {
			case ARLINGTON1_1:
			case ARLINGTON1_2:
			case ARLINGTON1_3:
			case ARLINGTON1_4:
			case ARLINGTON1_5:
			case ARLINGTON1_6:
			case ARLINGTON1_7:
			case ARLINGTON2_0:
				return getT1_1();
			default:
				return Collections.emptyList();
		}
	}

	private List getT1_1() {
		COSObject object = getTValue();
		if (object == null) {
			return Collections.emptyList();
		}
		if (object.getType() == COSObjType.COS_DICT) {
			List list = new ArrayList<>(1);
			list.add(new GFAThread((COSDictionary)object.getDirectBase(), this.baseObject, "T"));
			return Collections.unmodifiableList(list);
		}
		return Collections.emptyList();
	}

	private List getV() {
		switch (StaticContainers.getFlavour()) {
			case ARLINGTON1_1:
			case ARLINGTON1_2:
			case ARLINGTON1_3:
			case ARLINGTON1_4:
			case ARLINGTON1_5:
			case ARLINGTON1_6:
			case ARLINGTON1_7:
			case ARLINGTON2_0:
				return getV1_1();
			default:
				return Collections.emptyList();
		}
	}

	private List getV1_1() {
		COSObject object = getVValue();
		if (object == null) {
			return Collections.emptyList();
		}
		if (object.getType() == COSObjType.COS_DICT) {
			org.verapdf.model.baselayer.Object result = getVDictionary1_1(object.getDirectBase(), "V");
			List list = new ArrayList<>(1);
			if (result != null) {
				list.add(result);
			}
			return Collections.unmodifiableList(list);
		}
		return Collections.emptyList();
	}

	private org.verapdf.model.baselayer.Object getVDictionary1_1(COSBase base, String keyName) {
		switch (keyName) {
			case "0":
				return new GFABeadFirst(base, this.baseObject, keyName);
			default:
				return new GFABead(base, this.baseObject, keyName);
		}
	}

	@Override
	public Boolean getcontainsN() {
		return this.baseObject.knownKey(ASAtom.getASAtom("N"));
	}

	public COSObject getNValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("N"));
		return object;
	}

	@Override
	public Boolean getisNIndirect() {
		COSObject N = getNValue();
		return getisIndirect(N);
	}

	@Override
	public String getNType() {
		COSObject N = getNValue();
		return getObjectType(N);
	}

	@Override
	public Boolean getNHasTypeDictionary() {
		COSObject N = getNValue();
		return getHasTypeDictionary(N);
	}

	@Override
	public Boolean getcontainsP() {
		return this.baseObject.knownKey(ASAtom.getASAtom("P"));
	}

	public COSObject getPValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("P"));
		return object;
	}

	@Override
	public Boolean getisPIndirect() {
		COSObject P = getPValue();
		return getisIndirect(P);
	}

	@Override
	public String getPType() {
		COSObject P = getPValue();
		return getObjectType(P);
	}

	@Override
	public Boolean getPHasTypeDictionary() {
		COSObject P = getPValue();
		return getHasTypeDictionary(P);
	}

	@Override
	public Boolean getcontainsR() {
		return this.baseObject.knownKey(ASAtom.getASAtom("R"));
	}

	public COSObject getRValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("R"));
		return object;
	}

	@Override
	public String getRType() {
		COSObject R = getRValue();
		return getObjectType(R);
	}

	@Override
	public Boolean getRHasTypeRectangle() {
		COSObject R = getRValue();
		return getHasTypeRectangle(R);
	}

	@Override
	public Boolean getcontainsT() {
		return this.baseObject.knownKey(ASAtom.getASAtom("T"));
	}

	public COSObject getTValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("T"));
		return object;
	}

	@Override
	public Boolean getisTIndirect() {
		COSObject T = getTValue();
		return getisIndirect(T);
	}

	@Override
	public String getTType() {
		COSObject T = getTValue();
		return getObjectType(T);
	}

	@Override
	public Boolean getTHasTypeDictionary() {
		COSObject T = getTValue();
		return getHasTypeDictionary(T);
	}

	@Override
	public Boolean getcontainsType() {
		return this.baseObject.knownKey(ASAtom.getASAtom("Type"));
	}

	public COSObject getTypeValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("Type"));
		return object;
	}

	@Override
	public String getTypeType() {
		COSObject Type = getTypeValue();
		return getObjectType(Type);
	}

	@Override
	public Boolean getTypeHasTypeName() {
		COSObject Type = getTypeValue();
		return getHasTypeName(Type);
	}

	@Override
	public String getTypeNameValue() {
		COSObject Type = getTypeValue();
		return getNameValue(Type);
	}

	@Override
	public Boolean getcontainsV() {
		return this.baseObject.knownKey(ASAtom.getASAtom("V"));
	}

	public COSObject getVValue() {
		COSObject object = this.baseObject.getKey(ASAtom.getASAtom("V"));
		return object;
	}

	@Override
	public Boolean getisVIndirect() {
		COSObject V = getVValue();
		return getisIndirect(V);
	}

	@Override
	public String getVType() {
		COSObject V = getVValue();
		return getObjectType(V);
	}

	@Override
	public Boolean getVHasTypeDictionary() {
		COSObject V = getVValue();
		return getHasTypeDictionary(V);
	}

}