/*
* $RCSfile: CVSelectTag.java,v $ $Revision: 1.1.1.1 $ $Date: 2005/04/28 20:29:05 $ - $Author: mking_cv $
*
* The contents of this file are subject to the Open Software License
* Version 2.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.centraview.com/opensource/license.html
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
* License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is: CentraView Open Source.
*
* The developer of the Original Code is CentraView. Portions of the
* Original Code created by CentraView are Copyright (c) 2004 CentraView,
* LLC; All Rights Reserved. The terms "CentraView" and the CentraView
* logos are trademarks and service marks of CentraView, LLC.
*/
package com.centraview.udt;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspException;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.struts.taglib.html.BaseHandlerTag;
import org.apache.struts.taglib.html.Constants;
import org.apache.struts.util.MessageResources;
import org.apache.struts.util.RequestUtils;
import org.apache.struts.util.ResponseUtils;
import com.centraview.administration.authorization.ModuleFieldRightMatrix;
import com.centraview.common.UserObject;
/**
* Custom tag that represents an HTML select element, associated with a
* bean property specified by our attributes. This tag must be nested
* inside a form tag.
*
* @author Craig R. McClanahan
* @author David Graham
* @version $Revision: 1.1.1.1 $ $Date: 2005/04/28 20:29:05 $
*/
public class CVSelectTag extends BaseHandlerTag {
// for cv field authorization
/**
* status field name string
*/
protected String fieldname;
/**
* status module name string
*/
protected String modulename;
/**
* status module name string
*/
protected int fieldRight = 0;
/**
*/
public String getFieldname() {
return fieldname;
}
/**
*/
public void setFieldname(String fieldname) {
this.fieldname = fieldname;
}
/**
*/
public String getModulename() {
return modulename;
}
/**
*/
public void setModulename(String modulename) {
this.modulename = modulename;
}
// end cv field authorization
/**
* The message resources for this package.
*/
protected static MessageResources messages =
MessageResources.getMessageResources
("ApplicationResources");
// ----------------------------------------------------- Instance Variables
/**
* The actual values we will match against, calculated in doStartTag().
*/
protected String match[] = null;
/**
* Should multiple selections be allowed. Any non-null value will
* trigger rendering this.
*/
protected String multiple = null;
public String getMultiple() {
return (this.multiple);
}
public void setMultiple(String multiple) {
this.multiple = multiple;
}
/**
* The name of the bean containing our underlying property.
*/
protected String name = Constants.BEAN_KEY;
public String getName() {
return (this.name);
}
public void setName(String name) {
this.name = name;
}
/**
* The property name we are associated with.
*/
protected String property = null;
/**
* The saved body content of this tag.
*/
protected String saveBody = null;
/**
* How many available options should be displayed when this element
* is rendered?
*/
protected String size = null;
public String getSize() {
return (this.size);
}
public void setSize(String size) {
this.size = size;
}
/**
* The value to compare with for marking an option selected.
*/
protected String value = null;
// ------------------------------------------------------------- Properties
/**
* Does the specified value match one of those we are looking for?
*
* @param value Value to be compared.
*/
public boolean isMatched(String value) {
if ((this.match == null) || (value == null)) {
return false;
}
for (int i = 0; i < this.match.length; i++) {
if (value.equals(this.match[i]))
return true;
}
return false;
}
/**
* Return the property name.
*/
public String getProperty() {
return (this.property);
}
/**
* Set the property name.
*
* @param property The new property name
*/
public void setProperty(String property) {
this.property = property;
}
/**
* Return the comparison value.
*/
public String getValue() {
return (this.value);
}
/**
* Set the comparison value.
*
* @param value The new comparison value
*/
public void setValue(String value) {
this.value = value;
}
// --------------------------------------------------------- Public Methods
/**
* Render the beginning of this select tag.
* <p>
* Support for indexed property since Struts 1.1
*
* @exception JspException if a JSP exception has occurred
*/
public int doStartTag() throws JspException {
ResponseUtils.write(pageContext, renderSelectStartElement());
// Store this tag itself as a page attribute
pageContext.setAttribute(Constants.SELECT_KEY, this);
this.calculateMatchValues();
return (EVAL_BODY_TAG);
}
/**
* Create an appropriate select start element based on our parameters.
* @throws JspException
* @since Struts 1.1
*/
protected String renderSelectStartElement() throws JspException {
HttpSession session = ((HttpServletRequest)(pageContext.getRequest())).getSession();
ModuleFieldRightMatrix mfrmx = ((UserObject)session.getAttribute("userobject")).getUserPref().getModuleAuthorizationMatrix();
HashMap hm = mfrmx.getFieldRights(getModulename());
//System.out.println("[DEBUG] [CVSelectTag]: SandeepJ- matrix in cvselect : "+hm);
if (hm != null && hm.containsKey(getFieldname()))
{
fieldRight = ((Integer)hm.get(getFieldname())).intValue();
}
StringBuffer results = new StringBuffer("<select");
results.append(" name=\"");
// * @since Struts 1.1
if (this.indexed) {
prepareIndex(results, name);
}
results.append(property);
results.append("\"");
if (accesskey != null) {
results.append(" accesskey=\"");
results.append(accesskey);
results.append("\"");
}
if (multiple != null) {
results.append(" multiple=\"multiple\"");
}
if (size != null) {
results.append(" size=\"");
results.append(size);
results.append("\"");
}
if (fieldRight == ModuleFieldRightMatrix.NONE_RIGHT || fieldRight == 0)
{
//System.out.println("[DEBUG] [CVSelectTag]: SandeepJ - setting to dontselect(this),resetdata(this)... in CVSelect");
//results.append(" onclick=\"dontSelect(this)\" onchange=\"resetData(this)\" "); // TODO: uncomment this field to get this to work properly
}
if (tabindex != null) {
results.append(" tabindex=\"");
results.append(tabindex);
results.append("\"");
}
results.append(prepareEventHandlers());
results.append(prepareStyles());
results.append(">");
return results.toString();
}
/**
* Calculate the match values we will actually be using.
* @throws JspException
*/
private void calculateMatchValues() throws JspException {
if (this.value != null) {
this.match = new String[1];
this.match[0] = this.value;
} else {
Object bean = RequestUtils.lookup(pageContext, name, null);
if (bean == null) {
JspException e =
new JspException(messages.getMessage("getter.bean", name));
RequestUtils.saveException(pageContext, e);
throw e;
}
try {
this.match = BeanUtils.getArrayProperty(bean, property);
if (this.match == null) {
this.match = new String[0];
}
} catch (IllegalAccessException e) {
RequestUtils.saveException(pageContext, e);
throw new JspException(
messages.getMessage("getter.access", property, name));
} catch (InvocationTargetException e) {
Throwable t = e.getTargetException();
RequestUtils.saveException(pageContext, t);
throw new JspException(
messages.getMessage("getter.result", property, t.toString()));
} catch (NoSuchMethodException e) {
RequestUtils.saveException(pageContext, e);
throw new JspException(
messages.getMessage("getter.method", property, name));
}
}
}
/**
* Save any body content of this tag, which will generally be the
* option(s) representing the values displayed to the user.
*
* @exception JspException if a JSP exception has occurred
*/
public int doAfterBody() throws JspException {
if (bodyContent != null) {
String value = bodyContent.getString();
if (value == null) {
value = "";
}
this.saveBody = value.trim();
}
return (SKIP_BODY);
}
/**
* Render the end of this form.
*
* @exception JspException if a JSP exception has occurred
*/
public int doEndTag() throws JspException {
// Remove the page scope attributes we created
pageContext.removeAttribute(Constants.SELECT_KEY);
// Render a tag representing the end of our current form
StringBuffer results = new StringBuffer();
if (saveBody != null) {
results.append(saveBody);
}
results.append("</select>");
ResponseUtils.write(pageContext, results.toString());
return (EVAL_PAGE);
}
/**
* Release any acquired resources.
*/
public void release() {
super.release();
match = null;
multiple = null;
name = Constants.BEAN_KEY;
property = null;
saveBody = null;
size = null;
value = null;
}
}