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| package org.apache.tapestry.binding; |
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| import org.apache.bsf.BSFException; |
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| import org.apache.bsf.BSFManager; |
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| import org.apache.hivemind.ApplicationRuntimeException; |
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| import org.apache.hivemind.Location; |
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| import org.apache.hivemind.util.Defense; |
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| import org.apache.tapestry.IActionListener; |
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| import org.apache.tapestry.IComponent; |
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| import org.apache.tapestry.IPage; |
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| import org.apache.tapestry.IRequestCycle; |
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| import org.apache.tapestry.Tapestry; |
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| import org.apache.tapestry.coerce.ValueConverter; |
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| import org.apache.tapestry.services.BSFManagerFactory; |
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| public class ListenerBinding extends AbstractBinding implements IActionListener |
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| { |
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| private final String _language; |
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| private final String _script; |
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| private final IComponent _component; |
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| private BSFManagerFactory _managerFactory; |
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| public ListenerBinding(String description, ValueConverter valueConverter, Location location,
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| IComponent component, String language, String script, |
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| BSFManagerFactory managerFactory) |
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| { |
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| super(description, valueConverter, location);
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| Defense.notNull(component, "component");
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| Defense.notNull(language, "language");
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| Defense.notNull(script, "script");
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| _component = component;
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| _language = language;
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| _script = script;
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| _managerFactory = managerFactory;
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| } |
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| public Object getObject()
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| { |
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| return this;
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| } |
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| public void actionTriggered(IComponent component, IRequestCycle cycle)
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| { |
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| BSFManager bsf = _managerFactory.createBSFManager();
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| Location location = getLocation();
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| try
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| { |
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| IPage page = cycle.getPage();
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| bsf.declareBean("component", _component, _component.getClass());
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| bsf.declareBean("page", page, page.getClass());
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| bsf.declareBean("cycle", cycle, cycle.getClass());
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| bsf.exec(
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| _language, |
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| location.getResource().toString(), |
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| location.getLineNumber(), |
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| location.getLineNumber(), |
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| _script); |
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| } |
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| catch (BSFException ex) |
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| { |
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| String message = Tapestry.format("ListenerBinding.bsf-exception", location, ex
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| .getMessage()); |
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| throw new ApplicationRuntimeException(message, _component, getLocation(), ex);
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| } |
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| } |
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| public Object getComponent()
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| { |
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| return _component;
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| } |
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| } |