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| package org.apache.tapestry.describe; |
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| import java.util.ArrayList; |
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| import java.util.Iterator; |
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| import java.util.List; |
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| |
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| import org.apache.hivemind.util.Defense; |
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| import org.apache.tapestry.IMarkupWriter; |
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| import org.apache.tapestry.event.ReportStatusEvent; |
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| import org.apache.tapestry.event.ReportStatusListener; |
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| public class ReportStatusHubImpl implements ReportStatusHub |
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| { |
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| private List _listeners = new ArrayList(); |
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| private RootDescriptionReceiverFactory _receiverFactory; |
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| public synchronized void addReportStatusListener(ReportStatusListener listener)
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| { |
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| Defense.notNull(listener, "listener");
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| _listeners.add(listener);
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| } |
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| public synchronized void removeReportStatusListener(ReportStatusListener listener)
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| { |
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| Defense.notNull(listener, "listener");
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| _listeners.remove(listener);
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| } |
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| public synchronized void fireReportStatus(IMarkupWriter writer)
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| { |
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| if (_listeners.isEmpty())
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| return;
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| RootDescriptionReciever receiver = _receiverFactory.newRootDescriptionReceiver(writer);
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| ReportStatusEvent event = new ReportStatusEvent(this, receiver);
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| Iterator i = _listeners.iterator();
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| while (i.hasNext())
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| { |
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| ReportStatusListener listener = (ReportStatusListener) i.next();
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| listener.reportStatus(event);
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| receiver.finishUp();
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| } |
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| } |
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| public void setReceiverFactory(RootDescriptionReceiverFactory receiverFactory)
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| { |
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| _receiverFactory = receiverFactory;
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| } |
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| } |