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| package org.apache.tapestry.form; |
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| import java.util.Iterator; |
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| import org.apache.hivemind.service.ThreadLocale; |
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| import org.apache.tapestry.IMarkupWriter; |
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| import org.apache.tapestry.IRequestCycle; |
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| import org.apache.tapestry.coerce.ValueConverter; |
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| import org.apache.tapestry.form.validator.Validator; |
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| import org.apache.tapestry.valid.ValidatorException; |
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| public class ValidatableFieldSupportImpl implements ValidatableFieldSupport |
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| { |
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| private ValueConverter _converter; |
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| |
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| private ThreadLocale _threadLocale; |
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| public void setValueConverter(ValueConverter converter)
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| { |
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| _converter = converter;
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| } |
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| public void setThreadLocale(ThreadLocale threadLocale)
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| { |
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| _threadLocale = threadLocale;
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| } |
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| protected Iterator getValidatorsIterator(ValidatableField component)
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| { |
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| return (Iterator) _converter.coerceValue(component.getValidators(), Iterator.class);
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| } |
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| public void renderContributions(ValidatableField component, IMarkupWriter writer,
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| IRequestCycle cycle) |
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| { |
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| if (component.getForm().isClientValidationEnabled())
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| { |
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| FormComponentContributorContext context = new FormComponentContributorContextImpl(
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| _threadLocale.getLocale(), cycle, component); |
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| Iterator validators = getValidatorsIterator(component);
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| while (validators.hasNext())
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| { |
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| Validator validator = (Validator) validators.next();
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| validator.renderContribution(writer, cycle, context, component);
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| } |
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| } |
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| } |
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| public void validate(ValidatableField component, IMarkupWriter writer, IRequestCycle cycle, Object object) throws ValidatorException
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| { |
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| boolean isNonNull = (object != null);
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| Iterator validators = getValidatorsIterator(component);
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| ValidationMessages messages = new ValidationMessagesImpl(component, _threadLocale.getLocale());
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| while (validators.hasNext())
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| { |
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| Validator validator = (Validator) validators.next();
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| if (isNonNull || validator.getAcceptsNull())
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| validator.validate(component, messages, object);
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| } |
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| } |
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| public boolean isRequired(ValidatableField field)
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| { |
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| Iterator i = getValidatorsIterator(field);
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| while (i.hasNext())
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| { |
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| Validator validator = (Validator) i.next();
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| if (validator.isRequired())
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| return true;
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| } |
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| return false;
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| } |
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| } |