ASF_20_SRC_AUTO/src/blocks/lucene/samples/create-index.xsp

<?xml version="1.0" encoding="ISO-8859-1"?>

<xsp:page language="java"
          xmlns:xsp="http://apache.org/xsp"
          xmlns:xsp-request="http://apache.org/xsp/request/2.0">

  <xsp:structure>
   <xsp:include>org.apache.avalon.framework.context.ContextException</xsp:include>
   <xsp:include>org.apache.avalon.framework.component.ComponentException</xsp:include>
   <xsp:include>org.apache.cocoon.ProcessingException</xsp:include>
   <xsp:include>java.net.URL</xsp:include>
   <xsp:include>java.net.MalformedURLException</xsp:include>
   <xsp:include>org.apache.cocoon.components.language.markup.xsp.XSPUtil</xsp:include>
   <xsp:include>org.apache.avalon.framework.context.ContextException</xsp:include>
   <xsp:include>org.apache.cocoon.components.search.*</xsp:include>
   <xsp:include>org.apache.lucene.store.Directory</xsp:include>
   <xsp:include>org.apache.lucene.analysis.Analyzer</xsp:include>
  </xsp:structure>

  <xsp:logic>
  File workDir = null;
  /** Contextualize this class */
  public void contextualize(Context context) throws ContextException {
    super.contextualize( context );
    workDir = (File) context.get(Constants.CONTEXT_WORK_DIR);
  }
  
  LuceneCocoonIndexer lcii;
  Analyzer analyzer = LuceneCocoonHelper.getAnalyzer( "org.apache.lucene.analysis.standard.StandardAnalyzer" );
  
  void createIndex(String baseURL, boolean create) throws ProcessingException {
    try {
      
      lcii = (LuceneCocoonIndexer)this.manager.lookup( LuceneCocoonIndexer.ROLE );
      Directory directory = LuceneCocoonHelper.getDirectory( new File( workDir, "index" ), create );
      lcii.setAnalyzer( analyzer );
      URL base_url = new URL( baseURL );
      lcii.index( directory, create, base_url );
    } catch (MalformedURLException mue) {
      throw new ProcessingException( "MalformedURLException in createIndex()!", mue );
    } catch (IOException ioe) {
      // ignore ??
      throw new ProcessingException( "IOException in createIndex()!", ioe );
    } catch (ComponentException ce) {
      // ignore ??
      throw new ProcessingException( "ComponentException in createIndex()!", ce );
    } finally {
      if (lcii != null) {
        this.manager.release( lcii );
      }
      lcii = null;
    }
  }

  </xsp:logic>

  <page>
    <xsp:logic>
      boolean create;
      String createParam = <xsp-request:get-parameter name="create" />;
      if (createParam == null) {
        create = false;
      } else {
        create = true;
      }
      
      String baseURL = <xsp-request:get-parameter name="baseURL" />;
      if (baseURL != null &amp;&amp; baseURL.length() > 0) {
        createIndex(baseURL, create );
      }
      if (baseURL == null || baseURL.length() &lt; 1) {
        baseURL = 
          "http://" + 
          <xsp-request:get-server-name/> +
          ":" + <xsp-request:get-server-port/> +
          <xsp-request:get-context-path/> + "/" + "docs/index.html";
      }
    </xsp:logic>
    <content>
      <h1>Create a Lucene search index</h1>
      <para>
        <font size="-1">
          <a href="welcome">Welcome</a>
        </font>
      </para>
      <para>
        This process might take some time (follow the tail of your logfiles
        to see the indexer in progress).
        <ul>
          <li>LuceneCocoonIndexer.ROLE <xsp:expr>LuceneCocoonIndexer.ROLE</xsp:expr>
          </li>
          <li>context-path <xsp-request:get-context-path/>
          </li>
          <li>baseURL <xsp:expr>baseURL</xsp:expr>
          </li>
          <li>create <xsp:expr>String.valueOf(createParam)</xsp:expr>,
            <xsp:expr>String.valueOf( create )</xsp:expr>
          </li>
          <li>get-uri <xsp-request:get-uri/>
          </li>
          <li>get-sitemap-uri <xsp-request:get-sitemap-uri/>
          </li>
        </ul>

        <form action="create">
        <table>
          <tr>
            <td>BaseURL</td>
            <td>
              <input type="text" name="baseURL" size="60">
                <xsp:attribute name="value"><xsp:expr>baseURL</xsp:expr></xsp:attribute>
              </input>
            </td>
          </tr>
          <tr>
            <td colspan="2">
              <input type="radio" name="create" value="true" checked="checked"/>
              Create/Overwrite the Index, or
              <input type="radio" name="create" value="false"/>
              Update the existing Index
            </td>
          </tr>
          <tr>
            <td colspan="2">
              <input type="submit" name="find" value="Create"/>
            </td>
          </tr>
        </table>
        </form>

      </para>
    </content>
  </page>

</xsp:page>