QuicknavUtil.java example

Explorer
hq-master
/*
 * 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) [2004, 2005, 2006], Hyperic, 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.taglib;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.PageContext;

import org.hyperic.hq.appdef.shared.AppdefGroupValue;
import org.hyperic.hq.appdef.shared.AppdefResourceValue;
import org.hyperic.hq.common.ProductProperties;
import org.hyperic.hq.ui.Constants;
import org.hyperic.hq.ui.util.UIUtils;

public class QuicknavUtil {

	public final static String ICON_BORDER = "0";
	public final static String ICON_HEIGHT = "11";
	public final static String ICON_WIDTH = "11";
	public final static String ICON_SRC_LOCKED = "/images/icon_hub_locked.gif";
	public final static String ICON_HREF_A = "listDefinitionsAlertsConfigPortal.action?mode=list";
	public final static String ICON_SRC_A = "/images/icon_hub_a.gif";
	public final static String ICON_HREF_C = "/Control.do?mode=view";
	public final static String ICON_SRC_C = "/images/icon_hub_c.gif";
	public final static String ICON_HREF_I = "Visibility.action?mode=view";
	public final static String ICON_SRC_I = "/images/icon_hub_i.gif";
	public final static String ICON_HREF_M = "resourceAction.action?mode=currentHealth";
	public final static String ICON_SRC_M = "/images/icon_hub_m.gif";

	public static String getNA() {
		return "";
	}

	public static boolean isMonitorable(AppdefResourceValue rv) {
		if (rv.getEntityId().isGroup()) {
			AppdefGroupValue grp = (AppdefGroupValue) rv;
			if (grp.isGroupAdhoc() || grp.isDynamicGroup()) {
				return false;
			}
		}

		return true;
	}

	public static boolean isAlertable(AppdefResourceValue rv, PageContext ctx) {
		UIUtils uiUtils = (UIUtils) ProductProperties
				.getPropertyInstance("hyperic.hq.ui.utils");

		if (uiUtils == null) {
			return false;
		}

		return uiUtils.isResourceAlertable(rv);
	}

	public static boolean canControl(AppdefResourceValue rv, PageContext context) {
		List perms = (List) context.getRequest().getAttribute(
				Constants.ALL_RESOURCES_CONTROLLABLE);

		// if no perms, assume nothing is controllable
		if (perms == null) {
			return false;
		}

		return perms.contains(rv.getEntityId());
	}

	public static void parameterizeUrl(AppdefResourceValue rv, StringBuffer buf) {
		buf.append(Constants.ENTITY_ID_PARAM).append("=")
				.append(rv.getEntityId().getType()).append(":")
				.append(rv.getId());
	}

	public static void makeLinkedIconWithRef(AppdefResourceValue rv,
			StringBuffer buf, String href, String src, PageContext context) {
		HttpServletRequest req = (HttpServletRequest) context.getRequest();

		buf.append("<a href=\"").append(req.getContextPath()).append(href)
				.append("&");
		QuicknavUtil.parameterizeUrl(rv, buf);
		buf.append("\">");

		buf.append("<img src=\"").append(req.getContextPath()).append(src);
		buf.append("\" width=\"").append(QuicknavUtil.ICON_WIDTH)
				.append("\" height=\"").append(QuicknavUtil.ICON_HEIGHT)
				.append("\" alt=\"\" border=\"")
				.append(QuicknavUtil.ICON_BORDER).append("\">");

		buf.append("</a>\n");
	}

	public static void makeLinkedIcon(AppdefResourceValue rv, StringBuffer buf,
			String href, String src, PageContext context) {
		String prefix = "";
		String typeName = rv.getEntityId().getTypeName();
		if("platform".equalsIgnoreCase(typeName)){
			prefix = "viewPlatform";
		}else{
			prefix = "viewResource";
		}
		String full = prefix + "Inventory" + typeName.substring(0,1).toUpperCase() +  typeName.substring(1) + href;
		makeLinkedIconWithRef(rv, buf, full, src, context);
	}

	public static void makeLockedIcon(StringBuffer buf, PageContext context) {
		HttpServletRequest req = (HttpServletRequest) context.getRequest();

		buf.append("<img src=\"").append(req.getContextPath())
				.append(QuicknavUtil.ICON_SRC_LOCKED).append("\" width=\"")
				.append(QuicknavUtil.ICON_WIDTH).append("\" height=\"")
				.append(QuicknavUtil.ICON_HEIGHT)
				.append("\" alt=\"\" border=\"")
				.append(QuicknavUtil.ICON_BORDER).append("\">\n");
	}

	public static void makeMonitorLinkedIcon(AppdefResourceValue rv,
			StringBuffer buf, String href, String src, PageContext context) {
		String full = href;
		makeLinkedIconWithRef(rv, buf, full, src, context);
	}

	public static String getOutput(AppdefResourceValue rv, PageContext context)
			throws Exception {
		StringBuffer buf = new StringBuffer();

		if (QuicknavUtil.isMonitorable(rv)) {
			QuicknavUtil.makeMonitorLinkedIcon(rv, buf,
					QuicknavUtil.ICON_HREF_M, QuicknavUtil.ICON_SRC_M, context);
		}

		QuicknavUtil.makeLinkedIcon(rv, buf, QuicknavUtil.ICON_HREF_I,
				QuicknavUtil.ICON_SRC_I, context);

		if (QuicknavUtil.isAlertable(rv, context)) {
			QuicknavUtil.makeLinkedIconWithRef(rv, buf,
					QuicknavUtil.ICON_HREF_A, QuicknavUtil.ICON_SRC_A, context);
		}

		/*
		 * if (QuicknavUtil.isControllable(rv, context)) { boolean skip = false;
		 * 
		 * // Skip if group has no members if (rv instanceof AppdefGroupValue) {
		 * skip = ((AppdefGroupValue) rv).getTotalSize() == 0; }
		 * 
		 * if (!skip) { if (!QuicknavUtil.canControl(rv, context)) {
		 * QuicknavUtil.makeLockedIcon(buf, context); } else {
		 * QuicknavUtil.makeLinkedIcon(rv, buf, QuicknavUtil.ICON_HREF_C,
		 * QuicknavUtil.ICON_SRC_C, context); } } }
		 */

		return buf.toString();
	}

}