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/*
 * Licensed to The OpenNMS Group, Inc (TOG) under one or more
 * contributor license agreements.  See the LICENSE.md file
 * distributed with this work for additional information
 * regarding copyright ownership.
 *
 * TOG licenses this file to You under the GNU Affero General
 * Public License Version 3 (the "License") or (at your option)
 * any later version.  You may not use this file except in
 * compliance with the License.  You may obtain a copy of the
 * License at:
 *
 *      https://www.gnu.org/licenses/agpl-3.0.txt
 *
 * 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.opennms.web.svclayer.model;

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

import org.opennms.web.api.Util;
import org.springframework.validation.Errors;

/**
 *
 * The idea of this class is to represent a simple table that has column headers
 * and rows.
 *
 * @author Mathew Brozowski
 * @author DJ Gregor
 */
public class SimpleWebTable {

	public static class Cell {
		private Object m_content;
		private String m_styleClass;
		private String m_link;

		public Cell() {}

		public Cell(Object content, String styleClass) {
			m_content = content;
			m_styleClass = styleClass;
		}

		public Cell(Object content, String styleClass, String link) {
			m_content = content;
			m_styleClass = styleClass;
			m_link = link;
		}

		public Object getContent() {
			return m_content;
		}

		public void setContent(Object content) {
			m_content = content;
		}

		public String getStyleClass() {
			return m_styleClass;
		}

		public void setStyleClass(String styleClass) {
			m_styleClass = styleClass;
		}

		public String getLink() {
			return m_link;
		}

		public void setLink(String link) {
			m_link = link;
		}

		@Override
		public boolean equals(Object o) {
			if (o == null || !(o instanceof Cell)) {
				return false;
			}

			Cell c = (Cell) o;

			if ((m_content != null || c.m_content != null)
					&& (m_content == null
							|| !m_content.equals(c.m_content))) { 
				return false;
			}

			if ((m_styleClass != null || c.m_styleClass != null)
					&& (m_styleClass == null
							|| !m_styleClass.equals(c.m_styleClass))) { 
				return false;
			}

			if ((m_link != null || c.m_link != null)
					&& (m_link == null
							|| !m_link.equals(c.m_link))) { 
				return false;
			}

			return true;
		}

		@Override
		public String toString() {
			return "Content: \"" + m_content + "\", styleClass: \""
			+ m_styleClass + "\", link: \"" + m_link + "\"";
		}
	}


	private List m_columnHeaders = new ArrayList();
	private List> m_rows = new ArrayList>();
	private List m_currentRow = null;
	private String m_title = "";
	private Errors m_errors = null;

	/**
	 * getColumnHeaders
	 *
	 * @return a {@link java.util.List} object.
	 */
	public List getColumnHeaders() {
		return m_columnHeaders;
	}

	/**
	 * getRows
	 *
	 * @return a {@link java.util.List} object.
	 */
	public List> getRows() {
		return m_rows;
	}

	/**
	 * getTitle
	 *
	 * @return a {@link java.lang.String} object.
	 */
	public String getTitle() {
		return m_title;
	}

	/**
	 * setTitle
	 *
	 * @param title a {@link java.lang.String} object.
	 */
	public void setTitle(String title) {
		m_title  = title;
	}

	/**
	 * addColumn
	 *
	 * @param headerContent a {@link java.lang.Object} object.
	 * @param headerStyle a {@link java.lang.String} object.
	 * @return a {@link org.opennms.web.svclayer.model.SimpleWebTable.Cell} object.
	 */
	public Cell addColumn(Object headerContent, String headerStyle) {
		Cell headerCell = new Cell(headerContent, headerStyle);
		m_columnHeaders.add(headerCell);
		return headerCell;
	}
	

	/**
	 * addColumn
	 *
	 * @param headerContent a {@link java.lang.Object} object.
	 * @return a {@link org.opennms.web.svclayer.model.SimpleWebTable.Cell} object.
	 */
	public Cell addColumn(Object headerContent) {
		return addColumn(headerContent, "");
	}

	/**
	 * newRow
	 */
	public void newRow() {
		List row = new ArrayList();
		m_rows.add(row);
		m_currentRow = row;
	}

	/**
	 * addCell
	 *
	 * @param cellContent a {@link java.lang.Object} object.
	 * @param cellStyle a {@link java.lang.String} object.
	 * @param link a {@link java.lang.String} object.
	 * @return a {@link org.opennms.web.svclayer.model.SimpleWebTable.Cell} object.
	 */
	public Cell addCell(Object cellContent, String cellStyle, String link) {
		if (m_currentRow == null) {
			throw new IllegalStateException("make sure you call newRow before trying to add any cells to the table!");
		}

		Cell cell = new Cell(cellContent, cellStyle, link);
		m_currentRow.add(cell);
		return cell;
	}

	/**
	 * addCell
	 *
	 * @param cellContent a {@link java.lang.Object} object.
	 * @param cellStyle a {@link java.lang.String} object.
	 * @return a {@link org.opennms.web.svclayer.model.SimpleWebTable.Cell} object.
	 */
	public Cell addCell(Object cellContent, String cellStyle) {
		return addCell(cellContent, cellStyle, null);
	}


	/**
	 * addCell
	 *
	 * @param cellContent a {@link java.lang.String} object.
	 * @return a {@link org.opennms.web.svclayer.model.SimpleWebTable.Cell} object.
	 */
	public Cell addCell(String cellContent) {
		return addCell(cellContent, "", null);
	}

	/**
	 * toString
	 *
	 * @return a {@link java.lang.String} object.
	 */
        @Override
	public String toString() {
		final StringBuilder buf = new StringBuilder();

		buf.append("" + Util.htmlify(getTitle()) + "\n");

		buf.append("\n");

		buf.append("  \n");
		for (Cell cell : getColumnHeaders()) {
			buf.append("    \n");
		}
		buf.append("  \n");

		for (List cells : getRows()) {
			buf.append("  \n");
			for (Cell cell : cells) {
				buf.append("    \n");
			}
			buf.append("  \n");
		}

		buf.append("\n");
			if (cell.getLink() != null) {
				buf.append("      "
						+ cell.getContent() + "\n");
			} else {
				buf.append("      " + cell.getContent() + "\n");
			}
			buf.append("    
\n");
				if (cell.getLink() != null) {
					buf.append("      "
							+ cell.getContent() + "\n");
				} else {
					buf.append("      " + cell.getContent() + "\n");
				}
				buf.append("    \n");

		return buf.toString();
	}

	/**
	 * getErrors
	 *
	 * @return a {@link org.springframework.validation.Errors} object.
	 */
	public Errors getErrors() {
		return m_errors;
	}

	/**
	 * setErrors
	 *
	 * @param errors a {@link org.springframework.validation.Errors} object.
	 */
	public void setErrors(Errors errors) {
		m_errors = errors;
	}

}