com.alkacon.acacia.client.RootHandler Maven / Gradle / Ivy
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/*
* This library is part of the Acacia Editor -
* an open source inline and form based content editor for GWT.
*
* 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, please see the
* company website: http://www.alkacon.com
*
* 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 com.alkacon.acacia.client;
import com.alkacon.acacia.shared.ContentDefinition;
import com.alkacon.acacia.shared.Type;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* The root attribute handler.
*/
public class RootHandler implements I_AttributeHandler {
/** The attribute handler by id. */
private Map m_handlerById;
/** The sub handlers. */
private List> m_handlers;
/**
* Constructor.
*/
public RootHandler() {
m_handlers = new ArrayList>();
m_handlers.add(new HashMap());
m_handlerById = new HashMap();
}
/**
* Clears the handler hierarchy.
*/
public void clearHandlers() {
for (Map handlers : m_handlers) {
for (AttributeHandler handler : handlers.values()) {
handler.clearHandlers();
}
handlers.clear();
}
m_handlers.clear();
m_handlers.add(new HashMap());
m_handlerById.clear();
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#getChildHandler(java.lang.String, int)
*/
public AttributeHandler getChildHandler(String attributeName, int index) {
if (m_handlers.size() > index) {
return m_handlers.get(index).get(attributeName);
}
return null;
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#getChildHandlerBySimpleName(java.lang.String, int)
*/
public AttributeHandler getChildHandlerBySimpleName(String name, int index) {
if (m_handlers.size() > index) {
for (String attributeName : m_handlers.get(index).keySet()) {
if (attributeName.equals(name) || attributeName.endsWith(name)) {
return m_handlers.get(index).get(attributeName);
}
}
}
return null;
}
/**
* Returns the handler for the given id.
*
* @param entityId the entity id
* @param attributeName the attribute name
*
* @return the handler
*/
public AttributeHandler getHandlerById(String entityId, String attributeName) {
return m_handlerById.get(entityId + "/" + attributeName);
}
/**
* Returns the attribute handler for the given path.
*
* @param pathNames the path names
*
* @return the attribute handler
*/
public AttributeHandler getHandlerByPath(String[] pathNames) {
I_AttributeHandler handler = this;
int index = 0;
for (int i = 0; i < pathNames.length; i++) {
String attributeName = pathNames[i];
int nextIndex = ContentDefinition.extractIndex(attributeName);
attributeName = ContentDefinition.removeIndex(attributeName);
if ((handler instanceof AttributeHandler) && ((AttributeHandler)handler).getAttributeType().isChoice()) {
// in case of a choice attribute, skip to the next level
attributeName = Type.CHOICE_ATTRIBUTE_NAME;
}
handler = handler.getChildHandler(attributeName, index);
index = nextIndex;
}
return (AttributeHandler)handler;
}
/**
* Returns the attribute handler to the given simple path.
*
* @param pathNames the simple path elements
*
* @return the attribute handler
*/
public AttributeHandler getHandlersBySimplePath(String[] pathNames) {
I_AttributeHandler handler = this;
int index = 0;
for (int i = 0; i < pathNames.length; i++) {
String attributeName = pathNames[i];
int nextIndex = ContentDefinition.extractIndex(attributeName);
if (nextIndex > 0) {
nextIndex--;
}
attributeName = ContentDefinition.removeIndex(attributeName);
if ((handler instanceof AttributeHandler) && ((AttributeHandler)handler).getAttributeType().isChoice()) {
// in case of a choice attribute, skip to the next level
attributeName = Type.CHOICE_ATTRIBUTE_NAME;
}
handler = handler.getChildHandlerBySimpleName(attributeName, index);
index = nextIndex;
}
return (AttributeHandler)handler;
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#insertHandlers(int)
*/
public void insertHandlers(int index) {
if (index <= m_handlers.size()) {
m_handlers.add(index, new HashMap());
} else {
throw new IndexOutOfBoundsException("index of " + index + " too big, current size: " + m_handlers.size());
}
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#removeHandlers(int)
*/
public void removeHandlers(int index) {
m_handlers.remove(index);
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#setHandler(int, java.lang.String, com.alkacon.acacia.client.AttributeHandler)
*/
public void setHandler(int index, String attributeName, AttributeHandler handler) {
m_handlers.get(index).put(attributeName, handler);
handler.setParentHandler(this);
setHandlerById(attributeName, handler);
}
/**
* @see com.alkacon.acacia.client.I_AttributeHandler#setHandlerById(java.lang.String, com.alkacon.acacia.client.AttributeHandler)
*/
public void setHandlerById(String attributeName, AttributeHandler handler) {
m_handlerById.put(handler.getEntityId() + "/" + attributeName, handler);
}
/**
* Initializes the sub handlers maps for the given value count.
*
* @param count the value count
*/
protected void initHandlers(int count) {
if (count == 0) {
m_handlers.clear();
} else {
while (m_handlers.size() < count) {
m_handlers.add(new HashMap());
}
}
m_handlerById.clear();
}
}