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/**************************************************************
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*************************************************************/
package org.apache.openoffice.ooxml.parser.action;
import java.util.HashMap;
import java.util.Map;
import org.apache.openoffice.ooxml.parser.NameMap;
/** Manage actions that are bound to states and XML events.
*/
public class ActionManager
{
public ActionManager (
final NameMap aStateNameToIdMap)
{
maStateNameToIdMap = aStateNameToIdMap;
maAllStatesActions = new ActionDescriptor(0,"*");
maStateToActionsMap = new HashMap<>();
}
/** Add an action for an element start.
* @param sStateSelector
* The element is specified via a state name. This allows one element
* that leads to different complex types to have different actions,
* depending on the complex type.
* The selector value can be a full state name (including the namespace
* prefix and CT prefix, e.g. w06_CT_Table) or a regular expression
* (e.g. .*_CT_Table to match w06_CT_Table and w12_CT_Table).
* The action is bound to all matching states.
* @param aAction
* The action to call on entering any of the states that match the
* selector.
*/
public void AddElementStartAction (
final String sStateSelector,
final IAction aAction)
{
AddAction(sStateSelector, aAction, ActionTrigger.ElementStart);
}
/** Add an action for an element end.
* @see AddElementStartAction.
*/
public void AddElementEndAction (
final String sStateSelector,
final IAction aAction)
{
AddAction(sStateSelector, aAction, ActionTrigger.ElementEnd);
}
/** Add an action for XML text events.
* @see AddElementStartAction.
*/
public void AddTextAction (
final String sStateSelector,
final IAction aAction)
{
AddAction(sStateSelector, aAction, ActionTrigger.Text);
}
/** Return an iterable object that gives access to all actions
* bound to the given state and trigger.
* Return value can be null when there are no actions bound to the state
* and trigger.
*/
public Iterable<IAction> GetActions (
final int nStateId,
final ActionTrigger eTrigger)
{
final ActionDescriptor aOneStateActionsDescriptor = maStateToActionsMap.get(nStateId);
final Iterable<IAction> aOneStateActions = aOneStateActionsDescriptor!=null
? aOneStateActionsDescriptor.GetActions(eTrigger)
: null;
final Iterable<IAction> aAllStateActions = maAllStatesActions.GetActions(eTrigger);
if (aOneStateActions == null)
return aAllStateActions;
else if (aAllStateActions == null)
return aOneStateActions;
else
return new ActionIterator(aOneStateActions, aAllStateActions);
}
private void AddAction (
final String sStateSelector,
final IAction aAction,
final ActionTrigger eTrigger)
{
if (sStateSelector.equals("*"))
{
// Simple optimization when an action is defined for all states.
maAllStatesActions.AddAction(aAction, eTrigger);
}
else if (sStateSelector.contains("*") || sStateSelector.contains("?"))
{
// The state selector contains wildcards. We have to iterate over
// all state names to find the matching ones.
for (final int nStateId : maStateNameToIdMap.GetMatchingStateIds(sStateSelector))
{
GetActionDescriptor(nStateId).AddAction(aAction, eTrigger);
}
}
else
{
final int nStateId = maStateNameToIdMap.GetIdForName(sStateSelector);
GetActionDescriptor(nStateId).AddAction(aAction, eTrigger);
}
}
private ActionDescriptor GetActionDescriptor (final int nStateId)
{
ActionDescriptor aDescriptor = maStateToActionsMap.get(nStateId);
if (aDescriptor == null)
{
aDescriptor = new ActionDescriptor(nStateId, maStateNameToIdMap.GetNameForId(nStateId));
maStateToActionsMap.put(nStateId, aDescriptor);
}
return aDescriptor;
}
private final NameMap maStateNameToIdMap;
private final ActionDescriptor maAllStatesActions;
private final Map<Integer,ActionDescriptor> maStateToActionsMap;
}
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