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From je...@apache.org
Subject cvs commit: cocoon-2.1/src/blocks/linkrewriter/java/org/apache/cocoon/transformation LinkRewriterTransformer.java
Date Thu, 19 Jun 2003 11:31:06 GMT
jefft       2003/06/19 04:31:06

  Modified:    src/blocks/linkrewriter/java/org/apache/cocoon/transformation
                        LinkRewriterTransformer.java
  Log:
  Allow the various options (attributes to intercept, schemes to process, etc) to
  be configured once in the setup() method, instead of once per transformer
  invocation.
  
  Revision  Changes    Path
  1.7       +34 -8     cocoon-2.1/src/blocks/linkrewriter/java/org/apache/cocoon/transformation/LinkRewriterTransformer.java
  
  Index: LinkRewriterTransformer.java
  ===================================================================
  RCS file: /home/cvs/cocoon-2.1/src/blocks/linkrewriter/java/org/apache/cocoon/transformation/LinkRewriterTransformer.java,v
  retrieving revision 1.6
  retrieving revision 1.7
  diff -u -r1.6 -r1.7
  --- LinkRewriterTransformer.java	13 May 2003 11:13:00 -0000	1.6
  +++ LinkRewriterTransformer.java	19 Jun 2003 11:31:05 -0000	1.7
  @@ -99,6 +99,8 @@
    * <pre>
    *  &lt;map:transformer name="linkrewriter"
    *    src="org.apache.cocoon.transformation.LinkRewriterTransformer">
  + *    &lt;link-attrs>href src&lt;/link-attrs>
  + *    &lt;schemes>site ext&lt;/schemes>
    *    &lt;input-module name="site">
    *      &lt;file src="cocoon://samples/link/linkmap" reloadable="true"/>
    *    &lt;/input-module>
  @@ -111,7 +113,10 @@
    *    &lt;/input-module>
    *  &lt;/map:transformer>
    * </pre>
  - * Here, we have established dynamic configuration templates for two modules,
  + * Here, we have first configured which attributes to examine, and which URL
  + * schemes to consider rewriting.  In this example, &lt;a href="site:index"> would
  + * be processed.  See below for more configuration options.
  + * Then, we have established dynamic configuration templates for two modules,
    * 'site' (an {@link org.apache.cocoon.components.modules.input.XMLFileModule}
    * and 'mapper' (A {@link
    * org.apache.cocoon.components.modules.input.SimpleMappingMetaModule}.  All
  @@ -156,7 +161,7 @@
    *
    * <h3>Configuration</h3>
    * <p>
  - * The following map:parameter's are recognised:
  + * The following map:parameter's and map:transformer parameters are recognised:
    * <dl>
    *  <dt>link-attrs</dt>
    *  <dd>Space-separated list of attributes to consider links (to be
  @@ -209,6 +214,7 @@
        */
       public void configure(Configuration conf)
           throws ConfigurationException {
  +        if (conf == null) throw new NullPointerException("No static configuration passed
to LinkRewriter");
           this.origConf = conf;
       }
    
  @@ -230,10 +236,29 @@
       {
           super.setup(resolver, objectModel, src, parameters);
           this.links = new HashSet();
  -        this.badLinkStr = parameters.getParameter("bad-link-str", null);
  -        this.linkAttrs = split(parameters.getParameter("link-attrs", "href"), " ");
  -        this.inSchemes = split(parameters.getParameter("schemes", ""), " ");
  -        this.outSchemes = split(parameters.getParameter("exclude-schemes", "http https
ftp news mailto"), " ");
  +        this.badLinkStr = parameters.getParameter("bad-link-str",    // per-request config
  +                origConf.getChild("bad-link-str"). // else fall back to per-instance config
  +                getValue(null)                     // else use hardcoded default
  +                );
  +        this.linkAttrs = split(parameters.getParameter("link-attrs",
  +                    origConf.getChild("link-attrs").
  +                    getValue("href")
  +                    ), " ");
  +        this.inSchemes = split(parameters.getParameter("schemes",
  +                    origConf.getChild("schemes").
  +                    getValue("")
  +                    ), " ");
  +        this.outSchemes = split(parameters.getParameter("exclude-schemes",
  +                    origConf.getChild("exclude-schemes").
  +                    getValue("http https ftp news mailto")
  +                    ), " ");
  +        if (getLogger().isDebugEnabled()) {
  +            getLogger().debug("bad-link-str = "+badLinkStr);
  +            getLogger().debug("link-attrs = "+linkAttrs);
  +            getLogger().debug("schemes = "+inSchemes);
  +            getLogger().debug("exclude-schemes = "+outSchemes);
  +        }
  +
           if (getLogger().isDebugEnabled()) {
               getLogger().debug("Will ignore the following schemes: " + outSchemes);
           }
  @@ -267,6 +292,7 @@
        * @return A Set of strings in 'str'
        */
       private Set split(String str, String delim) {
  +        if (str == null) return null;
           Set schemes = new HashSet();
           StringTokenizer st = new StringTokenizer(str, delim);
           while (st.hasMoreTokens()) {
  @@ -364,7 +390,7 @@
        * @return Configuration for specified scheme, from the map:transformer block.
        */
       private Configuration getConf(String scheme) {
  -        Configuration[] schemeConfs = this.conf.getChildren();
  +        Configuration[] schemeConfs = this.conf.getChildren("input-module");
           for (int i=0; i<schemeConfs.length; i++) {
               if (scheme.equals(schemeConfs[i].getAttribute("name", null))) {
                   return schemeConfs[i];
  
  
  

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