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package org.apache.tapestry.portlet.bindings; |
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import java.util.Map; |
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import javax.portlet.PortletRequest; |
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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.binding.AbstractBinding; |
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import org.apache.tapestry.coerce.ValueConverter; |
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public class UserAttributeBinding extends AbstractBinding |
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{ |
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private final PortletRequest _request; |
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private final String _attributeName; |
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public UserAttributeBinding(String description, ValueConverter valueConverter, |
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Location location, PortletRequest request, String attributeName) |
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{ |
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super(description, valueConverter, location); |
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Defense.notNull(request, "request"); |
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Defense.notNull(attributeName, "attributeName"); |
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_request = request; |
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_attributeName = attributeName; |
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} |
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public boolean isInvariant() |
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{ |
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return false; |
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} |
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private Map getUserInfo() |
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{ |
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Map result = (Map) _request.getAttribute(PortletRequest.USER_INFO); |
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if (result == null) |
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throw new ApplicationRuntimeException(BindingsMessages.noUserInfo(), getLocation(), |
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null); |
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return result; |
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} |
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public Object getObject() |
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{ |
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return getUserInfo().get(_attributeName); |
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} |
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public void setObject(Object value) |
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{ |
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String asString = (String) getValueConverter().coerceValue(value, String.class); |
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getUserInfo().put(_attributeName, asString); |
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} |
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} |