Page.java

/*
documentr - Edit, maintain, and present software documentation on the web.
Copyright (C) 2012-2013 Maik Schreiber

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
package de.blizzy.documentr.page;

import java.util.Collections;
import java.util.Set;

import javax.validation.constraints.NotNull;

import lombok.AccessLevel;
import lombok.Getter;
import lombok.Setter;

import org.apache.commons.lang3.builder.EqualsBuilder;
import org.apache.commons.lang3.builder.HashCodeBuilder;
import org.springframework.util.Assert;

import de.blizzy.documentr.DocumentrConstants;

public class Page {
	@Getter
	@Setter(AccessLevel.PACKAGE)
	private String path;
	@Getter
	@Setter(AccessLevel.PACKAGE)
	private String parentPagePath;
	@Getter
	private String title;
	@Getter
	private String contentType;
	@Getter
	@Setter
	@NotNull
	private Set<String> tags = Collections.emptySet();
	@Getter
	private String viewRestrictionRole;
	@Getter
	@Setter
	private PageData data;
	@Getter
	@Setter
	private int orderIndex = DocumentrConstants.PAGE_ORDER_INDEX_UNORDERED;

	Page(String title, String contentType, PageData data) {
		this.title = title;
		this.contentType = contentType;
		this.data = data;
	}

	public static Page fromText(String title, String text) {
		PageTextData pageData = new PageTextData(text);
		return new Page(title, pageData.getContentType(), pageData);
	}

	public static Page fromData(byte[] data, String contentType) {
		PageData pageData = new PageData(data, contentType);
		return new Page(null, contentType, pageData);
	}

	public static Page fromMeta(String title, String contentType) {
		return new Page(title, contentType, null);
	}

	public void setViewRestrictionRole(String viewRestrictionRole) {
		if (viewRestrictionRole != null) {
			Assert.hasLength(viewRestrictionRole);
		}

		this.viewRestrictionRole = viewRestrictionRole;
	}

	@Override
	public boolean equals(Object o) {
		if (o == this) {
			return true;
		} else if ((o != null) && o.getClass().equals(getClass())) {
			Page other = (Page) o;
			return new EqualsBuilder()
				.append(parentPagePath, other.parentPagePath)
				.append(title, other.title)
				.append(data, other.data)
				.append(contentType, other.contentType)
				.append(tags, other.tags)
				.append(viewRestrictionRole, other.viewRestrictionRole)
				.isEquals();
		}
		return false;
	}

	@Override
	public int hashCode() {
		return new HashCodeBuilder()
			.append(parentPagePath)
			.append(title)
			.append(data)
			.append(contentType)
			.append(tags)
			.append(viewRestrictionRole)
			.toHashCode();
	}
}