/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.workplace.tools.content;
import org.opencms.file.CmsProperty;
import org.opencms.file.CmsPropertyDefinition;
import org.opencms.file.CmsResource;
import org.opencms.file.CmsVfsException;
import org.opencms.i18n.CmsMessages;
import org.opencms.jsp.CmsJspActionElement;
import org.opencms.lock.CmsLock;
import org.opencms.main.CmsException;
import org.opencms.main.OpenCms;
import org.opencms.workplace.CmsDialog;
import org.opencms.workplace.CmsWorkplace;
import org.opencms.workplace.CmsWorkplaceSettings;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.PageContext;
/**
* Provides methods for the delete property definition dialog.<p>
*
* @since 6.0.0
*/
public class CmsPropertyDelete extends CmsDialog {
/** Value for the action: delete cascade. */
public static final int ACTION_DELETE_CASCADE = 100;
/** Request parameter value for the action: delete cascade. */
public static final String DIALOG_DELETE_CASCADE = "deletecascade";
/** The dialog type. */
public static final String DIALOG_TYPE = "propertydelete";
/** Request parameter name for the property name. */
public static final String PARAM_PROPERTYNAME = "propertyname";
private String m_paramPropertyName;
/**
* Public constructor with JSP action element.<p>
*
* @param jsp an initialized JSP action element
*/
public CmsPropertyDelete(CmsJspActionElement jsp) {
super(jsp);
}
/**
* Public constructor with JSP variables.<p>
*
* @param context the JSP page context
* @param req the JSP request
* @param res the JSP response
*/
public CmsPropertyDelete(PageContext context, HttpServletRequest req, HttpServletResponse res) {
this(new CmsJspActionElement(context, req, res));
}
/**
* Deletes the property definition.<p>
*
* @throws JspException if problems including sub-elements occur
*/
public void actionDelete() throws JspException {
// save initialized instance of this class in request attribute for included sub-elements
getJsp().getRequest().setAttribute(SESSION_WORKPLACE_CLASS, this);
try {
getCms().deletePropertyDefinition(getParamPropertyName());
// close the dialog
actionCloseDialog();
} catch (Throwable e) {
// error while deleting property definition, show error dialog
includeErrorpage(this, e);
}
}
/**
* Deletes the property definition by cascading the properties on resources.<p>
*
* @throws JspException if problems including sub-elements occur
*/
public void actionDeleteCascade() throws JspException {
// save initialized instance of this class in request attribute for included sub-elements
getJsp().getRequest().setAttribute(SESSION_WORKPLACE_CLASS, this);
try {
// list of all resources containing this propertydefinition
List resourcesWithProperty = getCms().readResourcesWithProperty(getParamPropertyName());
// list of all resources locked by another user, containing this propertydefinition
List resourcesLockedByOtherUser = getResourcesLockedByOtherUser(resourcesWithProperty);
// do the following operations only if all of the resources are not locked by another user
if (resourcesLockedByOtherUser.isEmpty()) {
// save the site root
String storedSiteRoot = getCms().getRequestContext().getSiteRoot();
try {
// change to the root site
getCms().getRequestContext().setSiteRoot("/");
Iterator i = resourcesWithProperty.iterator();
while (i.hasNext()) {
CmsResource resource = (CmsResource)i.next();
// read the property object
CmsProperty property = getCms().readPropertyObject(
resource.getRootPath(),
getParamPropertyName(),
false);
// try to delete the property if it is not the NULL PROPERTY
// if the property is the NULL PROPERTY, it only had a shared
// value which was deleted at a sibling which was already processed
if (!property.isNullProperty()) {
CmsLock lock = getCms().getLock(resource);
if (lock.isUnlocked()) {
// lock the resource for the current (Admin) user
getCms().lockResource(resource.getRootPath());
}
property.setStructureValue(CmsProperty.DELETE_VALUE);
property.setResourceValue(CmsProperty.DELETE_VALUE);
// write the property with the null value to the resource and cascade it from the definition
getCms().writePropertyObject(resource.getRootPath(), property);
// unlock the resource
getCms().unlockResource(resource.getRootPath());
}
}
// delete the property definition at last
getCms().deletePropertyDefinition(getParamPropertyName());
} finally {
// restore the siteroot
getCms().getRequestContext().setSiteRoot(storedSiteRoot);
// close the dialog
actionCloseDialog();
}
} else {
StringBuffer reason = new StringBuffer();
reason.append(dialogWhiteBoxStart());
reason.append(buildResourceList(resourcesLockedByOtherUser, true));
reason.append(dialogWhiteBoxEnd());
throw new CmsVfsException(Messages.get().container(
Messages.ERR_DEL_PROP_RESOURCES_LOCKED_1,
reason.toString()));
}
} catch (Throwable e) {
// error while deleting property definition, show error dialog
includeErrorpage(this, e);
}
}
/**
* Builds a HTML list of Resources that use the specified property.<p>
*
* @throws CmsException if operation was not successful
*
* @return the HTML String for the Resource list
*/
public String buildResourceList() throws CmsException {
List resourcesWithProperty = getCms().readResourcesWithProperty(getParamPropertyName());
return buildResourceList(resourcesWithProperty, false);
}
/**
* Builds a HTML list of Resources.<p>
*
* Columns: Type, Name, Uri, Value of the property, locked by(optional).<p>
*
* @param resourceList a list of resources
* @param lockInfo a boolean to decide if the locked info should be shown or not
* @throws CmsException if operation was not successful
*
* @return the HTML String for the Resource list
*/
public String buildResourceList(List resourceList, boolean lockInfo) throws CmsException {
// reverse the resource list
Collections.reverse(resourceList);
CmsMessages messages = Messages.get().getBundle(getLocale());
StringBuffer result = new StringBuffer();
result.append("<table border=\"0\" width=\"100%\" cellpadding=\"1\" cellspacing=\"1\">\n");
result.append("<tr>\n");
// Type
result.append("\t<td style=\"width:5%;\" class=\"textbold\">");
result.append(messages.key(Messages.GUI_INPUT_TYPE_0));
result.append("</td>\n");
// Uri
result.append("\t<td style=\"width:40%;\" class=\"textbold\">");
result.append(messages.key(Messages.GUI_INPUT_ADRESS_0));
result.append("</td>\n");
// Name
result.append("\t<td style=\"width:25%;\" class=\"textbold\">");
result.append(messages.key(Messages.GUI_INPUT_TITLE_0));
result.append("</td>\n");
if (!lockInfo) {
// Property value
result.append("\t<td style=\"width:30%;\" class=\"textbold\">");
result.append(messages.key(Messages.GUI_INPUT_PROPERTYVALUE_0));
result.append("</td>\n");
}
if (lockInfo) {
// Property value
result.append("\t<td style=\"width:30%;\" class=\"textbold\">");
result.append(messages.key(Messages.GUI_EXPLORER_LOCKEDBY_0));
result.append("</td>\n");
result.append("</tr>\n");
}
result.append("</tr>\n");
result.append("<tr><td colspan=\"4\"><span style=\"height: 6px;\"> </span></td></tr>\n");
String storedSiteRoot = getCms().getRequestContext().getSiteRoot();
try {
getCms().getRequestContext().setSiteRoot("/");
Iterator i = resourceList.iterator();
while (i.hasNext()) {
CmsResource resource = (CmsResource)i.next();
String filetype = OpenCms.getResourceManager().getResourceType(resource.getTypeId()).getTypeName();
result.append("<tr>\n");
// file type
result.append("\t<td>");
result.append("<img src=\"");
result.append(getSkinUri());
result.append(CmsWorkplace.RES_PATH_FILETYPES);
result.append(filetype);
result.append(".gif\">");
result.append("</td>\n");
// file address
result.append("\t<td>");
result.append(resource.getRootPath());
result.append("</td>\n");
// title
result.append("\t<td>");
result.append(getJsp().property(CmsPropertyDefinition.PROPERTY_TITLE, resource.getRootPath(), ""));
result.append("</td>\n");
// current value of the property
if (!lockInfo) {
result.append("\t<td>");
result.append(getJsp().property(getParamPropertyName(), resource.getRootPath()));
result.append("</td>\n");
}
// locked by user
if (lockInfo) {
CmsLock lock = getCms().getLock(resource);
result.append("\t<td>");
result.append(getCms().readUser(lock.getUserId()).getName());
result.append("</td>\n");
}
result.append("</tr>\n");
}
result.append("</table>\n");
} finally {
getCms().getRequestContext().setSiteRoot(storedSiteRoot);
}
return result.toString();
}
/**
* Builds the html for the property definition select box.<p>
*
* @param attributes optional attributes for the <select> tag
* @return the html for the property definition select box
*/
public String buildSelectProperty(String attributes) {
return CmsPropertyChange.buildSelectProperty(getCms(), Messages.get().getBundle(getLocale()).key(
Messages.GUI_PLEASE_SELECT_0), attributes, "");
}
/**
* Returns the value of the propertyname parameter.<p>
*
* @return the value of the propertyname parameter
*/
public String getParamPropertyName() {
return m_paramPropertyName;
}
/**
* Sets the value of the propertyname parameter.<p>
*
* @param paramPropertyName the value of the propertyname parameter
*/
public void setParamPropertyName(String paramPropertyName) {
m_paramPropertyName = paramPropertyName;
}
/**
* @see org.opencms.workplace.CmsWorkplace#initWorkplaceRequestValues(org.opencms.workplace.CmsWorkplaceSettings, javax.servlet.http.HttpServletRequest)
*/
protected void initWorkplaceRequestValues(CmsWorkplaceSettings settings, HttpServletRequest request) {
// fill the parameter values in the get/set methods
fillParamValues(request);
// set the dialog type
setParamDialogtype(DIALOG_TYPE);
// set the action for the JSP switch
if (DIALOG_OK.equals(getParamAction())) {
setAction(ACTION_OK);
setParamTitle(Messages.get().getBundle(getLocale()).key(Messages.GUI_TITLE_PROPERTYDELETE_0)
+ ": "
+ getParamPropertyName());
} else if (DIALOG_CANCEL.equals(getParamAction())) {
setAction(ACTION_CANCEL);
} else if (DIALOG_DELETE_CASCADE.equals(getParamAction())) {
setAction(ACTION_DELETE_CASCADE);
} else {
setAction(ACTION_DEFAULT);
// build title for change property value dialog
setParamTitle(Messages.get().getBundle(getLocale()).key(Messages.GUI_TITLE_PROPERTYDELETE_0));
}
}
/**
* Returns a list of resources that are locked by another user as the current user.<p>
*
* @param resourceList the list of all (mixed) resources
*
* @return a list of resources that are locked by another user as the current user
* @throws CmsException if the getLock operation fails
*/
private List getResourcesLockedByOtherUser(List resourceList) throws CmsException {
List lockedResourcesByOtherUser = new ArrayList();
Iterator i = resourceList.iterator();
while (i.hasNext()) {
CmsResource resource = (CmsResource)i.next();
// get the lock state for the resource
CmsLock lock = getCms().getLock(resource);
// add this resource to the list if this is locked by another user
if (!lock.isUnlocked() && !lock.isOwnedBy(getCms().getRequestContext().getCurrentUser())) {
lockedResourcesByOtherUser.add(resource);
}
}
return lockedResourcesByOtherUser;
}
}