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From d...@apache.org
Subject cvs commit: xml-cocoon2/src/org/apache/cocoon/serialization PCLSerializer.java PSSerializer.java
Date Fri, 10 Aug 2001 12:36:30 GMT
dims        01/08/10 05:36:30

  Added:       src/org/apache/cocoon/serialization PCLSerializer.java
                        PSSerializer.java
  Log:
  Oops missed the files - (was New Serializers for PS and PCL from "Morrison, John" <John.Morrison@uk.experian.com>)
  
  Revision  Changes    Path
  1.1                  xml-cocoon2/src/org/apache/cocoon/serialization/PCLSerializer.java
  
  Index: PCLSerializer.java
  ===================================================================
  /*****************************************************************************
   * Copyright (C) The Apache Software Foundation. All rights reserved.        *
   * ------------------------------------------------------------------------- *
   * This software is published under the terms of the Apache Software License *
   * version 1.1, a copy of which has been included  with this distribution in *
   * the LICENSE file.                                                         *
   *****************************************************************************/
  
  package org.apache.cocoon.serialization;
  
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.PrintWriter;
  import org.apache.cocoon.caching.CacheValidity;
  import org.apache.cocoon.caching.Cacheable;
  import org.apache.cocoon.caching.NOPCacheValidity;
  import org.apache.avalon.excalibur.pool.Recyclable;
  import org.apache.avalon.framework.configuration.Configurable;
  import org.apache.avalon.framework.configuration.Configuration;
  import org.apache.avalon.framework.configuration.ConfigurationException;
  import org.apache.fop.apps.Driver;
  import org.apache.fop.apps.FOPException;
  import org.apache.fop.apps.Options;
  import org.apache.fop.apps.Version;
  import org.apache.fop.messaging.MessageEvent;
  import org.apache.fop.messaging.MessageHandler;
  import org.apache.fop.messaging.MessageListener;
  import org.xml.sax.ContentHandler;
  import org.xml.sax.SAXException;
  
  /**
   * FOP PCL serializer.
   *
   * @author <a href="mailto:giacomo.pati@pwr.ch">Giacomo Pati</a>
   *         (PWR Organisation &amp; Entwicklung)
   * @author <a href="mailto:stefano@apache.org">Stefano Mazzocchi</a>
   * @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
   * @author <a href="mailto:john.morrison@uk.experian.com">John Morrison</a>
   * @version CVS $Revision: 1.1 $ $Date: 2001/08/10 12:36:30 $
   *
   * The use of a config file for FOP is enabled by adding a configuration
   * element to the serializer in the sitemap.
   * <user-config src="../webapps/cocoon/WEB-INF/fop_config.xml"/> 
   * note the path to the config file has to be relative to where the application
   * started the JVM, or absolute. If any one wants to fix this, go ahead!
   * (colin britton)
   */
  public class PCLSerializer extends AbstractSerializer
  implements MessageListener, Recyclable, Configurable, Cacheable {
  
      //Declare options for FOP 
      private Options options;
      
      //Declare the FOP driver
      private Driver driver;
      
     /**
      * Set the configurations for this serializer.
      */
      public void configure(Configuration conf) 
      throws ConfigurationException {
          String userConfig = null;
          File userConfigFile = null;
  
          if (conf != null) {
              Configuration child = conf.getChild("user-config");
              if (child != null) {
                  try{
                      userConfig = child.getAttribute("src");
                  } catch(Exception ex) {		
                      // getLogger().debug("PCLSerializer: No config file specified ");
                  }
              }
          }
               
          // Check for null, use external or inbuilt config.
          if(userConfig != null){
              try {
                  userConfigFile = new File(userConfig);
                  options = new Options(userConfigFile);
                  getLogger().debug("PCLSerializer: Using config file " + userConfig);
  		    } catch (Exception ex) {
  		        getLogger().error("PCLSerializer: Cannot load  config " + userConfig, ex);
  		        throw new ConfigurationException("PCLSerializer: Cannot load config " + userConfig,
ex);
              }
          } else {
         	    try {
  	    	    options = new Options();
          	    getLogger().debug("PCLSerializer: Using default config file");
  		    } catch (Exception e) {
      		    getLogger().error("PCLSerializer: Cannot load default config ", e);
              }
          }
      }
      
  
      /**
       * Create the FOP driver
       * Set the <code>OutputStream</code> where the XML should be serialized.
       */
      public void setOutputStream(OutputStream out) {
          // load the fop driver
          this.driver = new Driver();
  
          // the use of static resources sucks for servlet enviornments
          // since we could have multiple FOP that all logs in this pipe
          // It's a concurrency and security nightmare! (SM)
          MessageHandler.setOutputMethod(MessageHandler.EVENT);
          MessageHandler.addListener(this);
  
          this.driver.setRenderer(new org.apache.fop.render.pcl.PCLRenderer());
          this.driver.setOutputStream(out);
          this.setContentHandler(this.driver.getContentHandler());
       }
  
      /**
       * Receive notification of the end of a document.
       */
      public void endDocument() throws SAXException {
          super.endDocument();
          try {
              this.driver.format();
              this.driver.render();
          } catch (IOException e) {
              getLogger().error("PCLSerializer.endDocument()", e);
              throw new SAXException (e);
          } catch (FOPException e) {
              getLogger().error("PCLSerializer.endDocument()", e);
              throw new SAXException (e);
          }
      }
  
      /**
       * Return the MIME type.
       */
      public String getMimeType() {
          return "application/vnd.hp-PCL";
      }
  
      /**
       * Receive FOP events.
       */
      public void processMessage (MessageEvent event) {
          // Output FOP messgaes to Cocoon logging system
          // Rather verbose,  so wrote all as debug (including errors)
          // Could be cleaned up to handle different messages as required (CB)
          getLogger().debug("FOP Message: "+event.getMessage());
      }
  
      /**
       * Generate the unique key.
       * This key must be unique inside the space of this component.
       * This method must be invoked before the generateValidity() method.
       *
       * @return The generated key or <code>0</code> if the component
       *              is currently not cacheable.
       */
      public long generateKey() {
          return 1;
      }
  
      /**
       * Generate the validity object.
       * Before this method can be invoked the generateKey() method
       * must be invoked.
       *
       * @return The generated validity object or <code>null</code> if the
       *         component is currently not cacheable.
       */
      public CacheValidity generateValidity() {
          return new NOPCacheValidity();
      }
  
      /**
       * Recycle the component and remove it from the MessageList
       */
      public void recycle() {
          super.recycle();
          MessageHandler.removeListener(this);
          this.options = null;
          this.driver = null;
      }
  
      /**
       * Test if the component wants to set the content length
       */
      public boolean shouldSetContentLength() {
          return true;
      }
  
  }
  
  
  
  1.1                  xml-cocoon2/src/org/apache/cocoon/serialization/PSSerializer.java
  
  Index: PSSerializer.java
  ===================================================================
  /*****************************************************************************
   * Copyright (C) The Apache Software Foundation. All rights reserved.        *
   * ------------------------------------------------------------------------- *
   * This software is published under the terms of the Apache Software License *
   * version 1.1, a copy of which has been included  with this distribution in *
   * the LICENSE file.                                                         *
   *****************************************************************************/
  
  package org.apache.cocoon.serialization;
  
  import java.io.File;
  import java.io.FileNotFoundException;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.io.PrintWriter;
  import org.apache.cocoon.caching.CacheValidity;
  import org.apache.cocoon.caching.Cacheable;
  import org.apache.cocoon.caching.NOPCacheValidity;
  import org.apache.avalon.excalibur.pool.Recyclable;
  import org.apache.avalon.framework.configuration.Configurable;
  import org.apache.avalon.framework.configuration.Configuration;
  import org.apache.avalon.framework.configuration.ConfigurationException;
  import org.apache.fop.apps.Driver;
  import org.apache.fop.apps.FOPException;
  import org.apache.fop.apps.Options;
  import org.apache.fop.apps.Version;
  import org.apache.fop.messaging.MessageEvent;
  import org.apache.fop.messaging.MessageHandler;
  import org.apache.fop.messaging.MessageListener;
  import org.xml.sax.ContentHandler;
  import org.xml.sax.SAXException;
  
  /**
   * FOP PS serializer.
   *
   * @author <a href="mailto:giacomo.pati@pwr.ch">Giacomo Pati</a>
   *         (PWR Organisation &amp; Entwicklung)
   * @author <a href="mailto:stefano@apache.org">Stefano Mazzocchi</a>
   * @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
   * @author <a href="mailto:john.morrison@uk.experian.com">John Morrison</a>
   * @version CVS $Revision: 1.1 $ $Date: 2001/08/10 12:36:30 $
   *
   * The use of a config file for FOP is enabled by adding a configuration
   * element to the serializer in the sitemap.
   * <user-config src="../webapps/cocoon/WEB-INF/fop_config.xml"/> 
   * note the path to the config file has to be relative to where the application
   * started the JVM, or absolute. If any one wants to fix this, go ahead!
   * (colin britton)
   */
  public class PSSerializer extends AbstractSerializer
  implements MessageListener, Recyclable, Configurable, Cacheable {
  
      //Declare options for FOP 
      private Options options;
      
      //Declare the FOP driver
      private Driver driver;
      
     /**
      * Set the configurations for this serializer.
      */
      public void configure(Configuration conf) 
      throws ConfigurationException {
          String userConfig = null;
          File userConfigFile = null;
  
          if (conf != null) {
              Configuration child = conf.getChild("user-config");
              if (child != null) {
                  try{
                      userConfig = child.getAttribute("src");
                  } catch(Exception ex) {		
                      // getLogger().debug("FOPSerializer: No config file specified ");
                  }
              }
          }
               
          // Check for null, use external or inbuilt config.
          if(userConfig != null){
              try {
                  userConfigFile = new File(userConfig);
                  options = new Options(userConfigFile);
                  getLogger().debug("PSSerializer: Using config file " + userConfig);
  		    } catch (Exception ex) {
  		        getLogger().error("PSSerializer: Cannot load  config " + userConfig, ex);
  		        throw new ConfigurationException("PSSerializer: Cannot load config " + userConfig,
ex);
              }
          } else {
         	    try {
  	    	    options = new Options();
          	    getLogger().debug("PSSerializer: Using default config file");
  		    } catch (Exception e) {
      		    getLogger().error("PSSerializer: Cannot load default config ", e);
              }
          }
      }
      
  
      /**
       * Create the FOP driver
       * Set the <code>OutputStream</code> where the XML should be serialized.
       */
      public void setOutputStream(OutputStream out) {
          // load the fop driver
          this.driver = new Driver();
  
          // the use of static resources sucks for servlet enviornments
          // since we could have multiple FOP that all logs in this pipe
          // It's a concurrency and security nightmare! (SM)
          MessageHandler.setOutputMethod(MessageHandler.EVENT);
          MessageHandler.addListener(this);
  
          this.driver.setRenderer(new org.apache.fop.render.ps.PSRenderer());
          this.driver.setOutputStream(out);
          this.setContentHandler(this.driver.getContentHandler());
       }
  
      /**
       * Receive notification of the end of a document.
       */
      public void endDocument() throws SAXException {
          super.endDocument();
          try {
              this.driver.format();
              this.driver.render();
          } catch (IOException e) {
              getLogger().error("PSSerializer.endDocument()", e);
              throw new SAXException (e);
          } catch (FOPException e) {
              getLogger().error("PSSerializer.endDocument()", e);
              throw new SAXException (e);
          }
      }
  
      /**
       * Return the MIME type.
       */
      public String getMimeType() {
          return "application/postscript";
      }
  
      /**
       * Receive FOP events.
       */
      public void processMessage (MessageEvent event) {
          // Output FOP messgaes to Cocoon logging system
          // Rather verbose,  so wrote all as debug (including errors)
          // Could be cleaned up to handle different messages as required (CB)
          getLogger().debug("FOP Message: "+event.getMessage());
      }
  
      /**
       * Generate the unique key.
       * This key must be unique inside the space of this component.
       * This method must be invoked before the generateValidity() method.
       *
       * @return The generated key or <code>0</code> if the component
       *              is currently not cacheable.
       */
      public long generateKey() {
          return 1;
      }
  
      /**
       * Generate the validity object.
       * Before this method can be invoked the generateKey() method
       * must be invoked.
       *
       * @return The generated validity object or <code>null</code> if the
       *         component is currently not cacheable.
       */
      public CacheValidity generateValidity() {
          return new NOPCacheValidity();
      }
  
      /**
       * Recycle the component and remove it from the MessageList
       */
      public void recycle() {
          super.recycle();
          MessageHandler.removeListener(this);
          this.options = null;
          this.driver = null;
      }
  
      /**
       * Test if the component wants to set the content length
       */
      public boolean shouldSetContentLength() {
          return true;
      }
  
  }
  
  
  

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