org.opencms.workplace.CmsWidgetDialogParameter Maven / Gradle / Ivy
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/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH & Co. KG (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 & Co. KG, 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;
import org.opencms.file.CmsObject;
import org.opencms.main.CmsException;
import org.opencms.main.CmsIllegalArgumentException;
import org.opencms.main.CmsRuntimeException;
import org.opencms.util.CmsStringUtil;
import org.opencms.widgets.A_CmsWidget;
import org.opencms.widgets.CmsWidgetException;
import org.opencms.widgets.I_CmsWidget;
import org.opencms.widgets.I_CmsWidgetParameter;
import org.opencms.widgets.Messages;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.SortedMap;
import org.apache.commons.beanutils.ConvertUtilsBean;
import org.apache.commons.beanutils.PropertyUtilsBean;
/**
* Implements the widget parameter interface for the use of OpenCms widgets on dialogs that
* are not based on XML contents.
*
* @since 6.0.0
*/
public class CmsWidgetDialogParameter implements I_CmsWidgetParameter {
/** The name of the default dialog page. */
public static final String DEFAULT_DIALOG_PAGE = "default";
/** The maximum number of occurences of a widget dialog element in a list of elements. */
public static final int MAX_OCCURENCES = 200;
/** The (optional) base collection for read / writing collection based parameters. */
protected Object m_baseCollection;
/** The (optional) base object for read / writing the parameter value to. */
protected Object m_baseObject;
/** The (optinal) object property to read / write this parameter value to. */
protected String m_baseObjectProperty;
/** The default value of the parameter. */
protected String m_defaultValue;
/** The name of the dialog (page) the widget is used on. */
protected String m_dialogPage;
/** Indicates if the widget value has an error. */
protected Throwable m_error;
/** The id of the parameter on the form. */
protected String m_id;
/** The index of this parameter in the (optional) list of parameters. */
protected int m_index;
/** The maximum number of occurences of this parameter. */
protected int m_maxOccurs;
/** The minimum number of occurences of this parameter. */
protected int m_minOccurs;
/** The name of the parameter. */
protected String m_name;
/** Optional localized key prefix identificator. */
protected String m_prefix;
/** The value of the parameter. */
protected String m_value;
/** The widget used for the parameter. */
protected I_CmsWidget m_widget;
/**
* Create a new Widget parameter.
*
* @param base the base of the parameter
* @param index the index of this parameter in the list
*/
public CmsWidgetDialogParameter(CmsWidgetDialogParameter base, int index) {
this(
null,
base.m_defaultValue,
base.getName(),
base.getWidget(),
base.getDialogPage(),
base.getMinOccurs(),
base.getMaxOccurs(),
index);
m_baseObject = base.m_baseObject;
m_baseObjectProperty = base.m_baseObjectProperty;
m_baseCollection = base.m_baseCollection;
m_prefix = base.m_prefix;
}
/**
* Create a new Widget parameter.
*
* @param base the base of the parameter
* @param index the index of this parameter in the list
* @param originalIndex the original index in the previous version of the list
*/
public CmsWidgetDialogParameter(CmsWidgetDialogParameter base, int index, int originalIndex) {
this(
null,
base.m_defaultValue,
base.getName(),
base.getWidget(),
base.getDialogPage(),
base.getMinOccurs(),
base.getMaxOccurs(),
index);
m_baseObject = base.m_baseObject;
m_baseObjectProperty = base.m_baseObjectProperty;
m_baseCollection = base.m_baseCollection;
if (m_baseCollection != null) {
if (m_baseCollection instanceof List) {
// base object is a list - make sure to set possible old value
List baseList = (List)m_baseCollection;
if (originalIndex < baseList.size()) {
Object o = baseList.get(originalIndex);
if (o != null) {
m_value = o.toString();
}
}
} else if (m_baseCollection instanceof SortedMap) {
// base object is a sorted map - make sure to set possible old value
SortedMap baseMap = (SortedMap)m_baseCollection;
@SuppressWarnings({"unchecked", "rawtypes"})
List keyList = new ArrayList(baseMap.keySet());
if (originalIndex < keyList.size()) {
Object key = keyList.get(originalIndex);
Object value = baseMap.get(key);
StringBuffer val = new StringBuffer();
val.append(key != null ? key.toString() : "");
val.append('=');
val.append(value != null ? value.toString() : "");
m_value = val.toString();
}
}
}
}
/**
* Create a new Widget parameter based on a given object's property.
*
* @param base the base object to map the parameter to / from
* @param property the base object property to map the parameter to / from
* @param widget the widget used for this parameter
*/
public CmsWidgetDialogParameter(Object base, String property, I_CmsWidget widget) {
this(base, property, DEFAULT_DIALOG_PAGE, widget);
}
/**
* Create a new Widget parameter based on a given object's property.
*
* @param base the base object to map the parameter to / from
* @param property the base object property to map the parameter to / from
* @param dialogPage the dialog page to use the widget on
* @param widget the widget used for this parameter
*/
public CmsWidgetDialogParameter(Object base, String property, String dialogPage, I_CmsWidget widget) {
this(base, property, null, dialogPage, widget, 1, 1);
}
/**
* Create a new Widget parameter based on a given object's property.
*
* @param base the base object to map the parameter to / from
* @param property the base object property to map the parameter to / from
* @param htmlName the form id name to use in the generated HTML
* @param dialogPage the dialog page to use the widget on
* @param widget the widget used for this parameter
*
*/
public CmsWidgetDialogParameter(
Object base,
String property,
String htmlName,
String dialogPage,
I_CmsWidget widget) {
this(base, property, htmlName, null, dialogPage, widget, 1, 1);
}
/**
* Create a new Widget parameter based on a given object's property.
*
* @param base the base object to map the parameter to / from
* @param property the base object property to map the parameter to / from
* @param defaultValue the default value to use for this parameter
* @param dialogPage the dialog page to use the widget on
* @param widget the widget used for this paramete
* @param minOccurs the required minimum numer of occurences of this parameter
* @param maxOccurs the maximum allowed numer of occurences of this parameter
*/
public CmsWidgetDialogParameter(
Object base,
String property,
String defaultValue,
String dialogPage,
I_CmsWidget widget,
int minOccurs,
int maxOccurs) {
this(base, property, property, defaultValue, dialogPage, widget, minOccurs, maxOccurs);
}
/**
* Create a new Widget parameter based on a given object's property.
*
* @param base the base object to map the parameter to / from
* @param property the base object property to map the parameter to / from
* @param htmlName the form id name to use in the generated HTML
* @param defaultValue the default value to use for this parameter
* @param dialogPage the dialog page to use the widget on
* @param widget the widget used for this paramete
* @param minOccurs the required minimum numer of occurences of this parameter
* @param maxOccurs the maximum allowed numer of occurences of this parameter
*/
public CmsWidgetDialogParameter(
Object base,
String property,
String htmlName,
String defaultValue,
String dialogPage,
I_CmsWidget widget,
int minOccurs,
int maxOccurs) {
if (htmlName == null) {
htmlName = property;
}
if ((base instanceof List) || (base instanceof SortedMap)) {
// this is a list, use custom list mappings
init(null, defaultValue, htmlName, widget, dialogPage, 0, MAX_OCCURENCES, 0);
m_baseObject = null;
m_baseObjectProperty = null;
m_baseCollection = base;
} else {
// generic object:use reflection to map object properties
init(null, defaultValue, htmlName, widget, dialogPage, minOccurs, maxOccurs, 0);
m_baseObject = base;
m_baseObjectProperty = property;
m_baseCollection = null;
PropertyUtilsBean bean = new PropertyUtilsBean();
Object value = null;
// make sure the base object has the requested property
if (!bean.isReadable(m_baseObject, m_baseObjectProperty)
|| !bean.isWriteable(m_baseObject, m_baseObjectProperty)) {
try {
// check if this is a mapped property
value = bean.getMappedProperty(m_baseObject, m_baseObjectProperty);
} catch (Exception e) {
throw new CmsIllegalArgumentException(
Messages.get().container(Messages.ERR_NO_PROPERTY_2, base.getClass().getName(), property));
}
}
try {
if (value == null) {
// may have been read already as a mapped property
value = bean.getNestedProperty(m_baseObject, m_baseObjectProperty);
}
} catch (Exception e) {
throw new CmsRuntimeException(
Messages.get().container(Messages.ERR_PROPERTY_READ_2, property, base.getClass().getName()),
e);
}
if (value != null) {
if ((value instanceof List) || (value instanceof SortedMap)) {
m_baseCollection = value;
m_minOccurs = 0;
m_maxOccurs = MAX_OCCURENCES;
} else {
m_defaultValue = String.valueOf(value);
m_value = m_defaultValue;
if ((m_minOccurs == 0) && !m_value.equals(defaultValue)) {
// if value is different from default ensure this widget is displayed
m_minOccurs = 1;
}
}
}
}
}
/**
* Create a new Widget parameter.
*
* @param name the name of the parameter
* @param widget the widget used for this parameter
*/
public CmsWidgetDialogParameter(String name, I_CmsWidget widget) {
this(null, null, name, widget, DEFAULT_DIALOG_PAGE, 1, 1, 0);
}
/**
* Create a new Widget parameter.
*
* @param name the name of the parameter
* @param widget the widget used for this parameter
* @param minOccurs the required minimum numer of occurences of this parameter
* @param maxOccurs the maximum allowed numer of occurences of this parameter
*/
public CmsWidgetDialogParameter(String name, I_CmsWidget widget, int minOccurs, int maxOccurs) {
this(null, null, name, widget, DEFAULT_DIALOG_PAGE, minOccurs, maxOccurs, 0);
}
/**
* Create a new Widget parameter with specified occurence settings.
*
* @param value the initial value of the parameter
* @param defaultValue the default value of the parameter
* @param name the id of the parameter
* @param widget the widget used for this parameter
* @param dialog the dialog this parameter is used on
* @param minOccurs the required minimum numer of occurences of this parameter
* @param maxOccurs the maximum allowed numer of occurences of this parameter
* @param index the index of this parameter in the list
*/
public CmsWidgetDialogParameter(
String value,
String defaultValue,
String name,
I_CmsWidget widget,
String dialog,
int minOccurs,
int maxOccurs,
int index) {
super();
init(value, defaultValue, name, widget, dialog, minOccurs, maxOccurs, index);
}
/**
* Returns a from id representation for the given widget name and id.
*
* @param name the widget parameter name
* @param index the widget parameter index
*
* @return a from id representation for the given widget name and id
*/
public static String createId(String name, int index) {
StringBuffer result = new StringBuffer();
result.append(name);
result.append('.');
result.append(index);
return result.toString();
}
/**
* "Commits" (writes) the value of this widget back to the underlying base object.
*
* @param dialog the widget dialog where the parameter is used on
*
* @throws CmsException in case the String value of the widget is invalid for the base Object
*/
@SuppressWarnings("unchecked")
public void commitValue(CmsWidgetDialog dialog) throws CmsException {
if (m_baseCollection == null) {
PropertyUtilsBean bean = new PropertyUtilsBean();
ConvertUtilsBean converter = new ConvertUtilsBean();
Object value = null;
try {
Class type = bean.getPropertyType(m_baseObject, m_baseObjectProperty);
value = converter.convert(m_value, type);
bean.setNestedProperty(m_baseObject, m_baseObjectProperty, value);
setError(null);
} catch (InvocationTargetException e) {
setError(e.getTargetException());
throw new CmsWidgetException(
Messages.get().container(
Messages.ERR_PROPERTY_WRITE_3,
value,
dialog.keyDefault(A_CmsWidget.getLabelKey(this), getKey()),
m_baseObject.getClass().getName()),
e.getTargetException(),
this);
} catch (Exception e) {
setError(e);
throw new CmsWidgetException(
Messages.get().container(
Messages.ERR_PROPERTY_WRITE_3,
value,
dialog.keyDefault(A_CmsWidget.getLabelKey(this), getKey()),
m_baseObject.getClass().getName()),
e,
this);
}
} else if (m_baseCollection instanceof SortedMap) {
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_value)) {
int pos = m_value.indexOf('=');
if ((pos > 0) && (pos < (m_value.length() - 1))) {
String key = m_value.substring(0, pos);
// it is assumed strings starting or ending with white-spaces are faulty inputs
String value = m_value.substring(pos + 1).trim();
@SuppressWarnings("rawtypes")
SortedMap map = (SortedMap)m_baseCollection;
if (map.containsKey(key)) {
Object val = map.get(key);
CmsWidgetException error = new CmsWidgetException(
Messages.get().container(
Messages.ERR_MAP_DUPLICATE_KEY_3,
dialog.keyDefault(A_CmsWidget.getLabelKey(this), getKey()),
key,
val),
this);
setError(error);
throw error;
}
map.put(key, value);
} else {
CmsWidgetException error = new CmsWidgetException(
Messages.get().container(
Messages.ERR_MAP_PARAMETER_FORM_1,
dialog.keyDefault(A_CmsWidget.getLabelKey(this), getKey())),
this);
setError(error);
throw error;
}
}
} else if (m_baseCollection instanceof List) {
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_value)) {
@SuppressWarnings("rawtypes")
List list = (List)m_baseCollection;
list.add(m_value);
}
}
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getDefault(org.opencms.file.CmsObject)
*/
public String getDefault(CmsObject cms) {
return m_defaultValue;
}
/**
* Returns the name of the dialog (or dialog page) this widget parameter is used on.
*
* This information can be used to create multi-page dialogs where the
* widgets are spread over several pages.
*
* @return the name of the dialog (or dialog page) this widget parameter is used on
*/
public String getDialogPage() {
return m_dialogPage;
}
/**
* Returns the Exception caused when this parameter value was commited, or null
* if error occurred.
*
* @return the Exception caused when this parameter value was commited
*/
public Throwable getError() {
return m_error;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getId()
*/
public String getId() {
return m_id;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getIndex()
*/
public int getIndex() {
return m_index;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getKey()
*/
public String getKey() {
StringBuffer result = new StringBuffer(128);
if (CmsStringUtil.isNotEmptyOrWhitespaceOnly(m_prefix)) {
result.append(m_prefix);
result.append('.');
}
result.append(getName());
return result.toString();
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getMaxOccurs()
*/
public int getMaxOccurs() {
return m_maxOccurs;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getMinOccurs()
*/
public int getMinOccurs() {
return m_minOccurs;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getName()
*/
public String getName() {
return m_name;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#getStringValue(org.opencms.file.CmsObject)
*/
public String getStringValue(CmsObject cms) throws CmsRuntimeException {
return m_value;
}
/**
* Returns the widget for this parameter.
*
* @return the widget for this parameter
*/
public I_CmsWidget getWidget() {
return m_widget;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#hasError()
*/
public boolean hasError() {
return m_error != null;
}
/**
* Checks if a value for this widget base type with the given id is available.
*
* This should only be used if the base object is a collection.
*
* @param index the index to check
*
* @return true if a value for this widget base type with the given id is available
*/
public boolean hasValue(int index) {
if (m_baseCollection instanceof List) {
return index < ((List)m_baseCollection).size();
} else if (m_baseCollection instanceof SortedMap) {
return index < ((SortedMap)m_baseCollection).size();
}
return false;
}
/**
* Returns true if this widget parameter is mapped to a Collection base object.
*
* @return true if this widget parameter is mapped to a Collection base object
*/
public boolean isCollectionBase() {
return (m_baseCollection != null)
&& ((m_baseCollection instanceof List) || (m_baseCollection instanceof SortedMap));
}
/**
* Prepares this widget dialog parameter to be committed.
*
* This is required if the base type is mapped to a Collection object,
* because the collection needs to be cleared before the new values are set.
*/
public void prepareCommit() {
if (m_baseCollection instanceof List) {
List list = (List)m_baseCollection;
list.clear();
} else if (m_baseCollection instanceof SortedMap) {
SortedMap map = (SortedMap)m_baseCollection;
map.clear();
}
}
/**
* Sets the error state of this widget.
*
* If the argument is null then the state is set to "no error".
*
* @param error the error state to set
*/
public void setError(Throwable error) {
m_error = error;
}
/**
* Sets the index to the provided value.
*
* @param index the new index value to set
*/
public void setindex(int index) {
m_index = index;
m_id = createId(m_name, m_index);
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#setKeyPrefix(java.lang.String)
*/
public void setKeyPrefix(String prefix) {
m_prefix = prefix;
}
/**
* @see org.opencms.widgets.I_CmsWidgetParameter#setStringValue(org.opencms.file.CmsObject, java.lang.String)
*/
public void setStringValue(CmsObject cms, String value) throws CmsIllegalArgumentException {
m_value = value;
}
/**
* Initializes a widget parameter with the given values.
*
* @param value the initial value of the parameter
* @param defaultValue the default value of the parameter
* @param name the id of the parameter
* @param widget the widget used for this parameter
* @param dialog the dialog this parameter is used on
* @param minOccurs the required minimum numer of occurences of this parameter
* @param maxOccurs the maximum allowed numer of occurences of this parameter
* @param index the index of this parameter in the list
*/
protected void init(
String value,
String defaultValue,
String name,
I_CmsWidget widget,
String dialog,
int minOccurs,
int maxOccurs,
int index) {
if (defaultValue == null) {
m_defaultValue = "";
} else {
m_defaultValue = defaultValue;
}
if (value == null) {
m_value = m_defaultValue;
} else {
m_value = value;
}
m_name = name;
m_widget = widget;
if (maxOccurs < MAX_OCCURENCES) {
m_maxOccurs = maxOccurs;
} else {
m_maxOccurs = MAX_OCCURENCES;
}
if (minOccurs >= 0) {
m_minOccurs = minOccurs;
} else {
m_minOccurs = 0;
}
if (m_minOccurs > m_maxOccurs) {
m_minOccurs = m_maxOccurs;
}
m_dialogPage = dialog;
m_error = null;
setindex(index);
}
}