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(Notice that a similar check is carried out within the fileData class; while this check makes that one technically redundant, we have included a check there also as a safety feature in case the class is used in a script that does not make such a check) //continues integrityphp // if path is a directory, find all contents if ( is_dir( $path ) ) { $dir = dir( $path ); while ( $entry = $dir->read() ) { // skip dotfiles if ( substr( $entry, 0, 1 ) == '' ) continue; // skip directories -- recursive indexing not implemented if ( is_dir( $path '/' $entry ) ) continue; // create a new fileData object for each entry $file = new fileData; $file->load( $path '/' .

< xml version="1.0" encoding="UTF-8" > <web-app ...> ... <servlet> <servlet-name>JSF</servlet-name> <servlet-class>javax.faces.webapp.FacesServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>JSF</servlet-name> <url-pattern>/faces/*</url-pattern> </servlet-mapping> <context-param> <param-name>facelets.LIBRARIES</param-name> <param-value>/META-INF/foo.taglib.xml</param-value> </context-param> </web-app>

The f:actionListener element registers for a UIComponent an instantiation of a class that implements the ActionListener interface. Action listeners process action events during the Apply Request Values or Invoke Application phases of the JSF life cycle. This is done only when developing application frameworks, not when developing applications in the Tomcat environment. Normally, to act on an event, you d do what we do in the Eshopf application: implement a method of a backing bean to handle the event and then refer to that method via a method expression assigned to the appropriate attribute of the component s tag. Table F-1 lists the element s attributes.

The f:attribute element adds an attribute to a UIComponent. Table F-2 lists the element s attributes. Table F-2. f:attribute Attributes

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$entry ); // if readable, assign to $found array if ( !empty( $file->combinedHash ) ) { $found[ $file->path ] = $file; } // end while directory entry } } // otherwise handle just the single file else { $file = new fileData; $file->load( $path ); if ( !empty( $file->combinedHash ) ) { $found[ $file->path ] = $file; } }.

Finally, modify listfaq.xhtml to display multiple questions as shown in Listing 7 23. Listing 7 23. Using <a4j:repeat> to Loop Through the Questions

The f:converter element creates for a UIComponent an instance of the javax.faces.convert.Converter class registered under a converter ID. Table F-3 lists the element s attributes. Table F-3. f:converter Attributes

// integrity.php continues If the provided path is a directory, you step through each of the actual files in the directory, using the load() method of the fileData class to generate the combined hash of file information, and store it in the $known array. If the path is a single file, you do the same with it. //continues integrity.php // initialize $foundFiles = $changedFiles $otherFiles = counters count( $found ); = 0; 0;

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xmlns:rich="http://richfaces.org/rich" xmlns:a4j="http://richfaces.org/a4j" xmlns:foo="http://foo.com"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Insert title here</title> </head> <body> <rich:panel> <a4j:repeat value="#{faqService.questions}" var="q"> <foo:qa question="#{q}" /> <p /> </a4j:repeat> </rich:panel> </body> </html>

The f:convertDateTime element creates a DateTimeConverter instance for a UIComponent. Table F-4 lists the element s attributes. Table F-4. f:convertDateTime Attributes

// if checking integrity, compare $found files to $known files if ( !empty( $known ) ) { // for each found... foreach( $found AS $fpath=>$file ) { // find matching record if ( isset( $known[ $fpath ] ) ) { $knownFile = $known[ $fpath ]; } else { print "NEW file at $fpath.\n"; $otherFiles++; continue; } // check hashes if ( $file->combinedHash != $knownFile->combinedHash ) { // something changed! $changedFiles++; // check content first $knownContentHash = substr( $knownFile->combinedHash, 0, 32 ); $contentHash = md5_file( $fpath ); if ( $contentHash != $knownContentHash ) { print "CONTENTS changed at $fpath.\r\n"; continue; } // content same so stats changed... which ones $changed = NULL; foreach( $knownFile->stats AS $key=>$knownValue ) { if ( $file->stats[ $key ] != $knownValue ) { $changed .= "$key changed from $knownValue to " . $file->stats[ $key ] , ; } } // strip off the last space and comma $changed = substr( $changed, 0, -2 );

The <a4j:repeat> tag is exactly like the <h:dataTable> tag, except that it will loop over its body while not generating tags like <table>, <tr>, or <td>. Next, modify FAQService to provide the question list as shown in Listing 7 24. Listing 7 24. Providing a List of Question Objects in FAQService

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