Slide.java

/*
 * 
 * Copyright 2015 Andrey Yakovlev
 * 
 * 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 jodtemplate.pptx;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

import jodtemplate.Relationship;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.math.NumberUtils;

public class Slide {

    private Relationship relationship;

    private final List<Relationship> otherRelationships = new ArrayList<>();

    private Presentation presentation;

    public Presentation getPresentation() {
        return presentation;
    }

    public void setPresentation(final Presentation presentation) {
        this.presentation = presentation;
    }

    public Relationship getRelationship() {
        return relationship;
    }

    public void setRelationship(final Relationship relationship) {
        this.relationship = relationship;
    }

    public List<Relationship> getOtherRelationships() {
        return Collections.unmodifiableList(new ArrayList<>(otherRelationships));
    }

    public void addOtherRelationship(final Relationship relationship) {
        if (relationship != null) {
            otherRelationships.add(relationship);
        }
    }

    public Relationship getRelationshipById(final String rId) {
        for (final Relationship rel : otherRelationships) {
            if (rId.equals(rel.getId())) {
                return rel;
            }
        }
        return null;
    }

    public Relationship getRelationshipByTarget(final String target) {
        for (final Relationship rel : otherRelationships) {
            if (target.equals(rel.getTarget())) {
                return rel;
            }
        }
        return null;
    }

    public String getNextId() {
        int id = 1;
        for (final Relationship rel : otherRelationships) {
            final String numStr = StringUtils.removeStart(rel.getId(), Relationship.ID_PREFIX);
            if (NumberUtils.isDigits(numStr)) {
                final int num = Integer.parseInt(numStr);
                if (num >= id) {
                    id = num + 1;
                }
            }
        }
        return Relationship.ID_PREFIX + id;
    }

}