xdev.ui.ganttchart.action.UpdateDateRelationManagementStrategy Maven / Gradle / Ivy
package xdev.ui.ganttchart.action;
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* %%
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*
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* GNU General Lesser Public License for more details.
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* You should have received a copy of the GNU General Lesser Public
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*/
import java.util.Date;
import xdev.ui.ganttchart.UpdateableGanttEntry;
import xdev.ui.ganttchart.utils.XdevGanttUtils;
import xdev.util.Duration;
import xdev.util.XdevDate;
import com.jidesoft.gantt.GanttChart;
import com.jidesoft.gantt.GanttEntry;
import com.jidesoft.gantt.GanttEntryRelation;
import com.jidesoft.gantt.GanttModel;
import com.jidesoft.range.Range;
import com.jidesoft.range.TimeRange;
/**
* A concrete implementation of {@link GanttRelationManagementStrategy} which
* automatically updates all the concerned {@link GanttEntry} start/end data to
* valid values, if the relation validation failed.
*
* Is used as default implementation in Date based
* GanttChartTemplates.
*
*
*
* The {@link Date} typed implementation because of date specific implementation
* details.
*
*
*
* @param
* the customized {@link GanttEntry} type.
*
* @author XDEV Software jwill
* @since 4.0
*/
public class UpdateDateRelationManagementStrategy> extends
AbstractRelationManagementStrategy
{
/**
* Initialy validates the existing relations within the {@link GanttChart}.
*
* @param chart
* the Chart to validate.
*/
public UpdateDateRelationManagementStrategy(GanttModel model)
{
super(model);
}
public UpdateDateRelationManagementStrategy()
{
super();
}
/**
* {@inheritDoc}
*/
@Override
public boolean manageRelation(GanttEntryRelation relation)
{
S pre = relation.getPredecessorEntry();
S suc = relation.getSuccessorEntry();
int type = relation.getRelationType();
switch(type)
{
// if the precessor end is not lower, then the sucessor
// start
// the sucessor start must be set to precessor end.
case GanttEntryRelation.ENTRY_RELATION_FINISH_TO_START:
{
if(!new FtSRelationManagementController().validateEntryRelation(pre,suc))
{
suc.setRange(new TimeRange(pre.getRange().upper(),this.getUpdatedEndDate(
suc.getRange(),pre.getRange().upper())));
for(int i = 0; i < suc.getChildrenCount(); i++)
{
// Have to cast here because of jide typing. The childs
// should be always the same type.
@SuppressWarnings("unchecked")
S childEntry = (S)suc.getChildAt(i);
if(!new FtSRelationManagementController().validateEntryRelation(
pre,childEntry))
{
childEntry.setRange(new TimeRange(pre.getRange().upper(),
this.getUpdatedEndDate(childEntry.getRange(),pre.getRange()
.upper())));
}
}
}
return true;
}
// if the precessor start is not lower, then the sucessor
// start
// the precessor start must be set to precessor start.
case GanttEntryRelation.ENTRY_RELATION_START_TO_START:
{
if(!new StSRelationManagementController().validateEntryRelation(pre,suc))
{
suc.setRange(new TimeRange(pre.getRange().lower(),this.getUpdatedEndDate(
suc.getRange(),pre.getRange().lower())));
for(int i = 0; i < suc.getChildrenCount(); i++)
{
// Have to cast here because of jide typing. The childs
// should be always the same type.
@SuppressWarnings("unchecked")
S childEntry = (S)suc.getChildAt(i);
if(!new StSRelationManagementController().validateEntryRelation(
pre,childEntry))
{
childEntry.setRange(new TimeRange(pre.getRange().lower(),
this.getUpdatedEndDate(childEntry.getRange(),pre.getRange()
.lower())));
}
}
}
return true;
}
// if the sucessor end is not lower, then the precessor
// end
// the sucessor end must be set to precessor end.
case GanttEntryRelation.ENTRY_RELATION_FINISH_TO_FINISH:
{
if(!new FtFRelationManagementController().validateEntryRelation(pre,suc))
{
suc.setRange(new TimeRange(this.getUpdatedStartDate(suc.getRange(),pre
.getRange().upper()),pre.getRange().upper()));
if(suc.getChildrenCount() > 0)
{
S relevantChildEntry = XdevGanttUtils.getMaxDateEntry(XdevGanttUtils
.getChildEntries(suc));
if(!new FtFRelationManagementController().validateEntryRelation(
pre,relevantChildEntry))
{
relevantChildEntry.setRange(new TimeRange(this.getUpdatedStartDate(
relevantChildEntry.getRange(),pre.getRange().upper()),pre
.getRange().upper()));
}
}
}
return true;
}
// if the precessor start is not lower, then the sucessor
// end
// the sucessor end must be set to precessor start.
case GanttEntryRelation.ENTRY_RELATION_START_TO_FINISH:
{
if(!new StFRelationManagementController().validateEntryRelation(pre,suc))
{
suc.setRange(new TimeRange(this.getUpdatedStartDate(suc.getRange(),pre
.getRange().lower()),pre.getRange().lower()));
if(suc.getChildrenCount() > 0)
{
S relevantChildEntry = XdevGanttUtils.getMaxDateEntry(XdevGanttUtils
.getChildEntries(suc));
if(!new StFRelationManagementController().validateEntryRelation(
pre,relevantChildEntry))
{
relevantChildEntry.setRange(new TimeRange(this.getUpdatedStartDate(
relevantChildEntry.getRange(),pre.getRange().lower()),pre
.getRange().lower()));
}
}
}
return true;
}
// default:
// throw new RuntimeException("The relationtype is not registered");
}
return false;
}
/**
* Calculates the new end date, relative to the previous range and the given
* start date.
*
* @param entryRange
* the previous set range (start until end).
* @param newStart
* the new start date.
*
* @return the new end date, relative to the new start date.
*/
private Date getUpdatedEndDate(Range entryRange, Date newStart)
{
XdevDate newTime = new XdevDate(newStart);
XdevDate xstart = new XdevDate(entryRange.lower());
XdevDate xend = new XdevDate(entryRange.upper());
Duration span = new Duration(xstart,xend);
newTime.rollForward(span);
return new Date(newTime.getTimeInMillis());
}
/**
* Calculates the new start date, relative to the previous range and the
* given end date.
*
* @param entryRange
* the previous set range (start until end).
* @param newEnd
* the new end date.
*
* @return the new start date, relative to the new end date.
*/
private Date getUpdatedStartDate(Range entryRange, Date newEnd)
{
XdevDate newTime = new XdevDate(newEnd);
XdevDate xstart = new XdevDate(entryRange.lower());
XdevDate xend = new XdevDate(entryRange.upper());
Duration span = new Duration(xstart,xend);
newTime.rollBack(span);
return new Date(newTime.getTimeInMillis());
}
}