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package org.apache.commons.jelly.impl; |
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import java.io.IOException; |
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import java.lang.reflect.InvocationTargetException; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.util.Collections; |
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import java.util.Hashtable; |
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import java.util.Iterator; |
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import java.util.Map; |
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import java.util.WeakHashMap; |
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import org.apache.commons.beanutils.ConvertingWrapDynaBean; |
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import org.apache.commons.beanutils.ConvertUtils; |
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import org.apache.commons.beanutils.DynaBean; |
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import org.apache.commons.beanutils.DynaProperty; |
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import org.apache.commons.jelly.CompilableTag; |
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import org.apache.commons.jelly.JellyContext; |
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import org.apache.commons.jelly.JellyException; |
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import org.apache.commons.jelly.JellyTagException; |
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import org.apache.commons.jelly.DynaTag; |
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import org.apache.commons.jelly.LocationAware; |
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import org.apache.commons.jelly.NamespaceAwareTag; |
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import org.apache.commons.jelly.Script; |
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import org.apache.commons.jelly.Tag; |
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import org.apache.commons.jelly.XMLOutput; |
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import org.apache.commons.jelly.expression.Expression; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.xml.sax.Attributes; |
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import org.xml.sax.Locator; |
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import org.xml.sax.SAXException; |
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public class TagScript implements Script { |
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private static final Log log = LogFactory.getLog(TagScript.class); |
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19968 |
protected Map attributes = new Hashtable(); |
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private Map tagNamespacesMap; |
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private Map namespaceContext; |
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private String fileName; |
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private String elementName; |
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private String localName; |
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private int lineNumber = -1; |
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private int columnNumber = -1; |
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private TagFactory tagFactory; |
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private Script tagBody; |
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private TagScript parent; |
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private Attributes saxAttributes; |
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private URL scriptURL = null; |
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private Map threadLocalTagCache = Collections.synchronizedMap(new WeakHashMap()); |
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public static TagScript newInstance(Class tagClass) { |
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TagFactory factory = new DefaultTagFactory(tagClass); |
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return new TagScript(factory); |
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} |
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public TagScript() { |
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} |
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public TagScript(TagFactory tagFactory) { |
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this.tagFactory = tagFactory; |
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} |
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public String toString() { |
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return super.toString() + "[tag=" + elementName + ";at=" + lineNumber + ":" + columnNumber + "]"; |
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} |
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public Script compile() throws JellyException { |
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if (tagBody != null) { |
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tagBody = tagBody.compile(); |
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} |
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return this; |
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} |
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public void setTagNamespacesMap(Map tagNamespacesMap) { |
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if ( ! (tagNamespacesMap instanceof Hashtable) ) { |
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tagNamespacesMap = new Hashtable( tagNamespacesMap ); |
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} |
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this.tagNamespacesMap = tagNamespacesMap; |
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} |
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public void setLocator(Locator locator) { |
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setLineNumber( locator.getLineNumber() ); |
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setColumnNumber( locator.getColumnNumber() ); |
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} |
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public void addAttribute(String name, Expression expression) { |
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if (log.isDebugEnabled()) { |
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log.debug("adding attribute name: " + name + " expression: " + expression); |
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} |
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attributes.put(name, expression); |
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} |
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private URL getJellyContextURL(URL url) throws MalformedURLException { |
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String text = url.toString(); |
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int idx = text.lastIndexOf('/'); |
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text = text.substring(0, idx + 1); |
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return new URL(text); |
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} |
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public void run(JellyContext context, XMLOutput output) throws JellyTagException { |
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URL rootURL = context.getRootURL(); |
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URL currentURL = context.getCurrentURL(); |
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try { |
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Tag tag = getTag(context); |
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if ( tag == null ) { |
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return; |
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} |
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tag.setContext(context); |
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setContextURLs(context); |
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if ( tag instanceof DynaTag ) { |
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DynaTag dynaTag = (DynaTag) tag; |
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for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) { |
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Map.Entry entry = (Map.Entry) iter.next(); |
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String name = (String) entry.getKey(); |
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Expression expression = (Expression) entry.getValue(); |
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Class type = dynaTag.getAttributeType(name); |
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Object value = null; |
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if (type != null && type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) { |
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value = expression; |
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} |
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else { |
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value = expression.evaluateRecurse(context); |
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} |
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dynaTag.setAttribute(name, value); |
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} |
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} |
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else { |
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DynaBean dynaBean = new ConvertingWrapDynaBean( tag ); |
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for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) { |
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Map.Entry entry = (Map.Entry) iter.next(); |
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String name = (String) entry.getKey(); |
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Expression expression = (Expression) entry.getValue(); |
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DynaProperty property = dynaBean.getDynaClass().getDynaProperty(name); |
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if (property == null) { |
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throw new JellyException("This tag does not understand the '" + name + "' attribute" ); |
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} |
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Class type = property.getType(); |
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Object value = null; |
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if (type.isAssignableFrom(Expression.class) && !type.isAssignableFrom(Object.class)) { |
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value = expression; |
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} |
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else { |
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value = expression.evaluateRecurse(context); |
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} |
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dynaBean.set(name, value); |
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} |
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} |
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tag.doTag(output); |
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if (output != null) { |
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output.flush(); |
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} |
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} |
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catch (JellyTagException e) { |
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handleException(e); |
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} catch (JellyException e) { |
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handleException(e); |
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} catch (IOException e) { |
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handleException(e); |
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} catch (RuntimeException e) { |
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handleException(e); |
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} |
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catch (Error e) { |
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handleException(e); |
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} finally { |
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context.setRootURL(rootURL); |
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context.setCurrentURL(currentURL); |
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} |
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} |
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protected void setContextURLs(JellyContext context) throws JellyTagException { |
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if ((context.getCurrentURL() == null || context.getRootURL() == class="keyword">null) && scriptURL != class="keyword">null) |
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{ |
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if (context.getRootURL() == null) context.setRootURL(scriptURL); |
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if (context.getCurrentURL() == null) context.setCurrentURL(scriptURL); |
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} |
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} |
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public Tag getTag(JellyContext context) throws JellyException { |
295 |
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Thread t = Thread.currentThread(); |
296 |
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Tag tag = (Tag) threadLocalTagCache.get(t); |
297 |
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if ( tag == null ) { |
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tag = createTag(); |
299 |
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if ( tag != null ) { |
300 |
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threadLocalTagCache.put(t,tag); |
301 |
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configureTag(tag,context); |
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} |
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} |
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return tag; |
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} |
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311 |
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public TagFactory getTagFactory() { |
312 |
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return tagFactory; |
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} |
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public void setTagFactory(TagFactory tagFactory) { |
320 |
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this.tagFactory = tagFactory; |
321 |
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} |
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327 |
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public TagScript getParent() { |
328 |
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return parent; |
329 |
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} |
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335 |
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public Script getTagBody() { |
336 |
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return tagBody; |
337 |
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} |
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public void setParent(TagScript parent) { |
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this.parent = parent; |
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} |
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public void setTagBody(Script tagBody) { |
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this.tagBody = tagBody; |
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} |
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358 |
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public String getFileName() { |
359 |
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return fileName; |
360 |
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} |
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public void setFileName(String fileName) { |
366 |
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this.fileName = fileName; |
367 |
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try |
368 |
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{ |
369 |
19968 |
this.scriptURL = getJellyContextURL(new URL(fileName)); |
370 |
104 |
} catch (MalformedURLException e) { |
371 |
104 |
log.debug("error setting script url", e); |
372 |
19864 |
} |
373 |
19968 |
} |
374 |
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375 |
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376 |
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377 |
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378 |
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379 |
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public String getElementName() { |
380 |
0 |
return elementName; |
381 |
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} |
382 |
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383 |
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384 |
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385 |
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386 |
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public void setElementName(String elementName) { |
387 |
19968 |
this.elementName = elementName; |
388 |
19968 |
} |
389 |
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390 |
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391 |
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392 |
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public int getLineNumber() { |
393 |
0 |
return lineNumber; |
394 |
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} |
395 |
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396 |
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397 |
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398 |
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399 |
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public void setLineNumber(int lineNumber) { |
400 |
19968 |
this.lineNumber = lineNumber; |
401 |
19968 |
} |
402 |
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403 |
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404 |
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405 |
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406 |
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public int getColumnNumber() { |
407 |
0 |
return columnNumber; |
408 |
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} |
409 |
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410 |
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411 |
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412 |
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413 |
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public void setColumnNumber(int columnNumber) { |
414 |
19968 |
this.columnNumber = columnNumber; |
415 |
19968 |
} |
416 |
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417 |
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418 |
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419 |
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420 |
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421 |
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public Attributes getSaxAttributes() { |
422 |
9646 |
return saxAttributes; |
423 |
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} |
424 |
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426 |
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427 |
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428 |
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429 |
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public void setSaxAttributes(Attributes saxAttributes) { |
430 |
19721 |
this.saxAttributes = saxAttributes; |
431 |
19721 |
} |
432 |
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434 |
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435 |
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436 |
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437 |
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public String getLocalName() { |
438 |
0 |
return localName; |
439 |
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} |
440 |
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441 |
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443 |
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444 |
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445 |
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public void setLocalName(String localName) { |
446 |
19968 |
this.localName = localName; |
447 |
19968 |
} |
448 |
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449 |
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450 |
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451 |
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452 |
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453 |
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454 |
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455 |
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456 |
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457 |
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458 |
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public synchronized Map getNamespaceContext() { |
459 |
0 |
if (namespaceContext == null) { |
460 |
0 |
if (parent != null) { |
461 |
0 |
namespaceContext = getParent().getNamespaceContext(); |
462 |
0 |
if (tagNamespacesMap != null && !tagNamespacesMap.isEmpty()) { |
463 |
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|
464 |
0 |
Hashtable newContext = new Hashtable(namespaceContext.size()+1); |
465 |
0 |
newContext.putAll(namespaceContext); |
466 |
0 |
newContext.putAll(tagNamespacesMap); |
467 |
0 |
namespaceContext = newContext; |
468 |
0 |
} |
469 |
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} |
470 |
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else { |
471 |
0 |
namespaceContext = tagNamespacesMap; |
472 |
0 |
if (namespaceContext == null) { |
473 |
0 |
namespaceContext = new Hashtable(); |
474 |
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} |
475 |
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} |
476 |
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} |
477 |
0 |
return namespaceContext; |
478 |
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} |
479 |
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480 |
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481 |
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482 |
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483 |
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484 |
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485 |
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486 |
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487 |
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protected Tag createTag() throws JellyException { |
488 |
9646 |
if ( tagFactory != null) { |
489 |
9646 |
return tagFactory.createTag(localName, getSaxAttributes()); |
490 |
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} |
491 |
0 |
return null; |
492 |
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} |
493 |
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494 |
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495 |
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496 |
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497 |
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498 |
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protected void configureTag(Tag tag, JellyContext context) throws JellyException { |
499 |
9646 |
if (tag instanceof CompilableTag) { |
500 |
0 |
((CompilableTag) tag).compile(); |
501 |
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} |
502 |
9646 |
Tag parentTag = null; |
503 |
9646 |
if ( parent != null ) { |
504 |
8671 |
parentTag = parent.getTag(context); |
505 |
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} |
506 |
9646 |
tag.setParent( parentTag ); |
507 |
9646 |
tag.setBody( tagBody ); |
508 |
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|
509 |
9646 |
if (tag instanceof NamespaceAwareTag) { |
510 |
0 |
NamespaceAwareTag naTag = (NamespaceAwareTag) tag; |
511 |
0 |
naTag.setNamespaceContext(getNamespaceContext()); |
512 |
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} |
513 |
9646 |
if (tag instanceof LocationAware) { |
514 |
0 |
applyLocation((LocationAware) tag); |
515 |
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} |
516 |
9646 |
} |
517 |
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518 |
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519 |
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520 |
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521 |
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522 |
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|
523 |
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protected void setTag(Tag tag, JellyContext context) { |
524 |
156 |
Thread t = Thread.currentThread(); |
525 |
156 |
threadLocalTagCache.put(t,tag); |
526 |
156 |
} |
527 |
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|
528 |
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529 |
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|
530 |
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|
531 |
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protected void startNamespacePrefixes(XMLOutput output) throws SAXException { |
532 |
156 |
if ( tagNamespacesMap != null ) { |
533 |
13 |
for ( Iterator iter = tagNamespacesMap.entrySet().iterator(); iter.hasNext(); ) { |
534 |
13 |
Map.Entry entry = (Map.Entry) iter.next(); |
535 |
13 |
String prefix = (String) entry.getKey(); |
536 |
13 |
String uri = (String) entry.getValue(); |
537 |
13 |
output.startPrefixMapping(prefix, uri); |
538 |
13 |
} |
539 |
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} |
540 |
156 |
} |
541 |
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542 |
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|
543 |
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|
544 |
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|
545 |
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protected void endNamespacePrefixes(XMLOutput output) throws SAXException { |
546 |
156 |
if ( tagNamespacesMap != null ) { |
547 |
13 |
for ( Iterator iter = tagNamespacesMap.keySet().iterator(); iter.hasNext(); ) { |
548 |
13 |
String prefix = (String) iter.next(); |
549 |
13 |
output.endPrefixMapping(prefix); |
550 |
13 |
} |
551 |
|
} |
552 |
156 |
} |
553 |
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554 |
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555 |
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|
556 |
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|
557 |
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|
558 |
|
|
559 |
|
|
560 |
|
protected Object convertType(Object value, Class requiredType) |
561 |
|
throws JellyException { |
562 |
0 |
if (requiredType.isInstance(value)) { |
563 |
0 |
return value; |
564 |
|
} |
565 |
0 |
if (value instanceof String) { |
566 |
0 |
return ConvertUtils.convert((String) value, requiredType); |
567 |
|
} |
568 |
0 |
return value; |
569 |
|
} |
570 |
|
|
571 |
|
|
572 |
|
|
573 |
|
|
574 |
|
protected JellyException createJellyException(String reason) { |
575 |
0 |
return new JellyException( |
576 |
|
reason, fileName, elementName, columnNumber, lineNumber |
577 |
|
); |
578 |
|
} |
579 |
|
|
580 |
|
|
581 |
|
|
582 |
|
|
583 |
|
protected JellyException createJellyException(String reason, Exception cause) { |
584 |
0 |
if (cause instanceof JellyException) { |
585 |
0 |
return (JellyException) cause; |
586 |
|
} |
587 |
|
|
588 |
0 |
if (cause instanceof InvocationTargetException) { |
589 |
0 |
return new JellyException( |
590 |
|
reason, |
591 |
|
((InvocationTargetException) cause).getTargetException(), |
592 |
|
fileName, |
593 |
|
elementName, |
594 |
|
columnNumber, |
595 |
|
lineNumber); |
596 |
|
} |
597 |
0 |
return new JellyException( |
598 |
|
reason, cause, fileName, elementName, columnNumber, lineNumber |
599 |
|
); |
600 |
|
} |
601 |
|
|
602 |
|
|
603 |
|
|
604 |
|
|
605 |
|
|
606 |
|
|
607 |
|
protected void handleException(JellyTagException e) throws JellyTagException { |
608 |
637 |
if (log.isTraceEnabled()) { |
609 |
0 |
log.trace( "Caught exception: " + e, e ); |
610 |
|
} |
611 |
|
|
612 |
637 |
applyLocation(e); |
613 |
|
|
614 |
637 |
throw e; |
615 |
|
} |
616 |
|
|
617 |
|
|
618 |
|
|
619 |
|
|
620 |
|
|
621 |
|
|
622 |
|
protected void handleException(JellyException e) throws JellyTagException { |
623 |
0 |
if (log.isTraceEnabled()) { |
624 |
0 |
log.trace( "Caught exception: " + e, e ); |
625 |
|
} |
626 |
|
|
627 |
0 |
applyLocation(e); |
628 |
|
|
629 |
0 |
throw new JellyTagException(e); |
630 |
|
} |
631 |
|
|
632 |
|
protected void applyLocation(LocationAware locationAware) { |
633 |
637 |
if (locationAware.getLineNumber() == -1) { |
634 |
338 |
locationAware.setColumnNumber(columnNumber); |
635 |
338 |
locationAware.setLineNumber(lineNumber); |
636 |
|
} |
637 |
637 |
if ( locationAware.getFileName() == null ) { |
638 |
338 |
locationAware.setFileName( fileName ); |
639 |
|
} |
640 |
637 |
if ( locationAware.getElementName() == null ) { |
641 |
338 |
locationAware.setElementName( elementName ); |
642 |
|
} |
643 |
637 |
} |
644 |
|
|
645 |
|
|
646 |
|
|
647 |
|
|
648 |
|
|
649 |
|
|
650 |
|
protected void handleException(Exception e) throws JellyTagException { |
651 |
0 |
if (log.isTraceEnabled()) { |
652 |
0 |
log.trace( "Caught exception: " + e, e ); |
653 |
|
} |
654 |
|
|
655 |
0 |
if (e instanceof LocationAware) { |
656 |
0 |
applyLocation((LocationAware) e); |
657 |
|
} |
658 |
|
|
659 |
0 |
if ( e instanceof JellyException ) { |
660 |
0 |
e.fillInStackTrace(); |
661 |
|
} |
662 |
|
|
663 |
0 |
if ( e instanceof InvocationTargetException) { |
664 |
0 |
throw new JellyTagException( ((InvocationTargetException)e).getTargetException(), |
665 |
|
fileName, |
666 |
|
elementName, |
667 |
|
columnNumber, |
668 |
|
lineNumber ); |
669 |
|
} |
670 |
|
|
671 |
0 |
throw new JellyTagException(e, fileName, elementName, columnNumber, lineNumber); |
672 |
|
} |
673 |
|
|
674 |
|
|
675 |
|
|
676 |
|
|
677 |
|
|
678 |
|
|
679 |
|
|
680 |
|
|
681 |
|
protected void handleException(Error e) throws Error, JellyTagException { |
682 |
0 |
if (log.isTraceEnabled()) { |
683 |
0 |
log.trace( "Caught exception: " + e, e ); |
684 |
|
} |
685 |
|
|
686 |
0 |
if (e instanceof LocationAware) { |
687 |
0 |
applyLocation((LocationAware) e); |
688 |
|
} |
689 |
|
|
690 |
0 |
throw new JellyTagException(e, fileName, elementName, columnNumber, lineNumber); |
691 |
|
} |
692 |
|
} |