BreadcrumbUtil.java

/**
 * NOTE: This copyright does *not* cover user programs that use HQ
 * program services by normal system calls through the application
 * program interfaces provided as part of the Hyperic Plug-in Development
 * Kit or the Hyperic Client Development Kit - this is merely considered
 * normal use of the program, and does *not* fall under the heading of
 *  "derived work".
 *
 *  Copyright (C) [2009-2010], VMware, Inc.
 *  This file is part of HQ.
 *
 *  HQ is free software; you can redistribute it and/or modify
 *  it under the terms version 2 of the GNU General Public License as
 *  published by the Free Software Foundation. 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, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 *  USA.
 *
 */

package org.hyperic.hq.ui.action.resource.hub;

import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;

import org.hyperic.hq.ui.Constants;
import org.hyperic.util.pager.PageControl;

public class BreadcrumbUtil {
	public static String createRootBrowseURL(String baseUrl,
			ResourceHubFormNG hubForm, PageControl pageControl) {
		StringBuilder url = new StringBuilder(baseUrl);

		url.append("?");

		// Set the view param
		String view = hubForm.getView();

		if (view != null && !view.equals("")) {
			url.append(ResourceHubFormNG.VIEW_PARAM).append("=")
					.append(encode(view)).append("&");
		}

		// Set the entity type id param
		int entityTypeId = hubForm.getFf();

		url.append(ResourceHubFormNG.ENTITY_TYPE_ID_PARAM).append("=")
				.append(entityTypeId).append("&");

		// Set the keywords param
		String keywords = hubForm.getKeywords();

		if (keywords != null && !keywords.equals("")) {
			url.append(ResourceHubFormNG.KEYWORDS_PARAM).append("=")
					.append(encode(keywords)).append("&");
		}

		// Set the resource type id param
		String resourceTypeId = hubForm.getFt();

		if (resourceTypeId != null && !resourceTypeId.equals("")) {
			url.append(ResourceHubFormNG.RESOURCE_TYPE_ID_PARAM).append("=")
					.append(encode(resourceTypeId)).append("&");
		}

		// Set group type id param
		Integer groupTypeId = hubForm.getG();

		if (groupTypeId != null) {
			url.append(ResourceHubFormNG.GROUP_TYPE_ID_PARAM).append("=")
					.append(groupTypeId).append("&");
		}

		// Set group id param
		String groupId = hubForm.getFg();

		if (groupId != null && groupId.equals("")) {
			url.append(ResourceHubFormNG.GROUP_ID_PARAM).append("=")
					.append(encode(groupId)).append("&");
		}

		url.append(ResourceHubFormNG.ANY_FLAG_PARAM).append("=")
				.append(hubForm.isAny()).append("&");
		url.append(ResourceHubFormNG.OWNER_FLAG_PARAM).append("=")
				.append(hubForm.isOwn()).append("&");
		url.append(ResourceHubFormNG.UNAVAILABLE_FLAG_PARAM).append("=")
				.append(hubForm.isUnavail()).append("&");
		url.append(Constants.PAGENUM_PARAM).append("=")
				.append(pageControl.getPagenum()).append("&");
		url.append(Constants.PAGESIZE_PARAM).append("=")
				.append(pageControl.getPagesize());

		return url.toString();
	}

	public static String createRootBrowseURL(String baseUrl, int entityTypeId,
			Integer groupTypeId) {
		StringBuilder url = new StringBuilder(baseUrl);

		url.append("?");

		// Set the entity type id param
		url.append(ResourceHubFormNG.ENTITY_TYPE_ID_PARAM).append("=")
				.append(entityTypeId).append("&");

		if (groupTypeId != null) {
			url.append(ResourceHubFormNG.GROUP_TYPE_ID_PARAM).append("=")
					.append(groupTypeId).append("&");
		}

		return url.toString();
	}

	public static String createResourceURL(String baseUrl, String entityId,
			String ctype) {
		StringBuilder url = new StringBuilder(baseUrl);

		url.append("?");
		url.append(Constants.ENTITY_ID_PARAM).append("=")
				.append(encode(entityId));

		if (ctype != null && !ctype.equals("")) {
			url.append("&").append(Constants.CHILD_RESOURCE_TYPE_ID_PARAM)
					.append("=").append(encode(ctype));
		}

		return url.toString();
	}

	public static String createReturnToURL(String baseUrl) {
		StringBuilder url = new StringBuilder(baseUrl);

		if (!baseUrl.endsWith("&") && !baseUrl.endsWith("?")) {
			url.append("&");
		}

		url.append(Constants.RETURN_TO_LINK_PARAM_NAME).append("=")
				.append(Constants.RETURN_TO_LINK_PARAM_VALUE);

		return url.toString();
	}

	private static String encode(Object value) {
		if (value == null)
			return "";

		try {
			return URLEncoder.encode(value.toString(), "UTF-8");
		} catch (UnsupportedEncodingException e) {
			// Encoding error, pass the original value instead
			return value.toString();
		}
	}
}