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package javax.faces.webapp; |
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import javax.faces.component.EditableValueHolder; |
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import javax.faces.component.UIComponent; |
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import javax.faces.internal.WebAppUtil; |
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import javax.faces.validator.Validator; |
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import javax.servlet.jsp.JspException; |
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import javax.servlet.jsp.tagext.TagSupport; |
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public class ValidatorTag extends TagSupport { |
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private static final long serialVersionUID = 1L; |
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32 | 21 | private String validatorId = null; |
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34 | 21 | public ValidatorTag() { |
35 | 21 | } |
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public void setValidatorId(String validatorId) { |
38 | 21 | this.validatorId = validatorId; |
39 | 21 | } |
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public int doStartTag() throws JspException { |
42 | 0 | UIComponentTag tag = UIComponentTag |
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.getParentUIComponentTag(pageContext); |
44 | 0 | if (tag == null) { |
45 | 0 | throw new JspException("Not nested in a UIComponentTag"); |
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} |
47 | 0 | if (!tag.getCreated()) { |
48 | 0 | return EVAL_PAGE; |
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} |
50 | 0 | Validator validator = createValidator(); |
51 | 0 | UIComponent component = tag.getComponentInstance(); |
52 | 0 | if (component == null || !(component instanceof EditableValueHolder)) { |
53 | 0 | throw new JspException( |
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"Component is null or not editable value holder."); |
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} |
56 | 0 | EditableValueHolder editableValueHolder = (EditableValueHolder) component; |
57 | 0 | editableValueHolder.addValidator(validator); |
58 | 0 | return SKIP_BODY; |
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} |
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public void release() { |
62 | 0 | validatorId = null; |
63 | 0 | super.release(); |
64 | 0 | } |
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protected Validator createValidator() throws JspException { |
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try { |
68 | 21 | String id = this.validatorId; |
69 | 21 | if (UIComponentTag.isValueReference(id)) { |
70 | 0 | id = (String) WebAppUtil.getValueFromCreatedValueBinding(id); |
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} |
72 | 21 | return WebAppUtil.createValidator(id); |
73 | 0 | } catch (Exception e) { |
74 | 0 | throw new JspException(e); |
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} |
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} |
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} |