diff options
Diffstat (limited to 'src/org/apache/fop/apps/Driver.java')
| -rw-r--r-- | src/org/apache/fop/apps/Driver.java | 270 |
1 files changed, 148 insertions, 122 deletions
diff --git a/src/org/apache/fop/apps/Driver.java b/src/org/apache/fop/apps/Driver.java index b263e2d99..60c250176 100644 --- a/src/org/apache/fop/apps/Driver.java +++ b/src/org/apache/fop/apps/Driver.java @@ -1,4 +1,5 @@ -/* $Id$ +/* + * $Id$ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved. * For details on use and redistribution please refer to the * LICENSE file included with these sources. @@ -47,12 +48,11 @@ import java.util.*; * Here is an example use of Driver which outputs PDF: * * <PRE> - * Driver driver = new Driver(new InputSource (args[0]), - * new FileOutputStream(args[1])); - * driver.setRenderer(RENDER_PDF); - * driver.run(); + * Driver driver = new Driver(new InputSource (args[0]), + * new FileOutputStream(args[1])); + * driver.setRenderer(RENDER_PDF); + * driver.run(); * </PRE> - * If neccessary, calling classes can call into the lower level * methods to setup and * render. Methods can be called to set the @@ -78,76 +78,109 @@ import java.util.*; * Here is an example use of Driver which outputs to AWT: * * <PRE> - * Driver driver = new Driver(); - * driver.setRenderer(new org.apache.fop.render.awt.AWTRenderer(translator)); - * driver.buildFOTree(parser, fileInputSource(args[0])); - * driver.format(); - * driver.render(); + * Driver driver = new Driver(); + * driver.setRenderer(new org.apache.fop.render.awt.AWTRenderer(translator)); + * driver.buildFOTree(parser, fileInputSource(args[0])); + * driver.format(); + * driver.render(); * </PRE> */ public class Driver { - /** Render to PDF. OutputStream must be set */ + /** + * Render to PDF. OutputStream must be set + */ public static final int RENDER_PDF = 1; - /** Render to a GUI window. No OutputStream neccessary */ + /** + * Render to a GUI window. No OutputStream neccessary + */ public static final int RENDER_AWT = 2; - /** Render to MIF. OutputStream must be set */ + /** + * Render to MIF. OutputStream must be set + */ public static final int RENDER_MIF = 3; - /** Render to XML. OutputStream must be set */ + /** + * Render to XML. OutputStream must be set + */ public static final int RENDER_XML = 4; - /** Render to PRINT. No OutputStream neccessary */ + /** + * Render to PRINT. No OutputStream neccessary + */ public static final int RENDER_PRINT = 5; - /** Render to PCL. OutputStream must be set */ + /** + * Render to PCL. OutputStream must be set + */ public static final int RENDER_PCL = 6; - /** Render to Postscript. OutputStream must be set */ + /** + * Render to Postscript. OutputStream must be set + */ public static final int RENDER_PS = 7; - /** Render to Text. OutputStream must be set */ + /** + * Render to Text. OutputStream must be set + */ public static final int RENDER_TXT = 8; - /** the FO tree builder */ + /** + * the FO tree builder + */ private FOTreeBuilder _treeBuilder; - /** the area tree that is the result of formatting the FO tree */ + /** + * the area tree that is the result of formatting the FO tree + */ private AreaTree _areaTree; - /** the renderer to use to output the area tree */ + /** + * the renderer to use to output the area tree + */ private Renderer _renderer; - /** the source of the FO file */ + /** + * the source of the FO file + */ private InputSource _source; - /** the stream to use to output the results of the renderer */ + /** + * the stream to use to output the results of the renderer + */ private OutputStream _stream; - /** The XML parser to use when building the FO tree */ + /** + * The XML parser to use when building the FO tree + */ private XMLReader _reader; - /** If true, full error stacks are reported */ + /** + * If true, full error stacks are reported + */ private boolean _errorDump = false; - /** the system resources that FOP will use */ + /** + * the system resources that FOP will use + */ private BufferManager _bufferManager; public static final String getParserClassName() { String parserClassName = null; try { parserClassName = System.getProperty("org.xml.sax.parser"); - } catch(SecurityException se) { - } + } catch (SecurityException se) {} if (parserClassName == null) { parserClassName = "org.apache.xerces.parsers.SAXParser"; } return parserClassName; } - /** create a new Driver */ + /** + * create a new Driver + */ public Driver() { _stream = null; _bufferManager = new BufferManager(); @@ -173,7 +206,7 @@ public class Driver { } public boolean hasData() { - return(_treeBuilder.hasData()); + return (_treeBuilder.hasData()); } /** @@ -221,14 +254,14 @@ public class Driver { addElementMapping("org.apache.fop.extensions.ExtensionElementMapping"); // add mappings from available services - Enumeration providers = Service.providers(org.apache.fop.fo.ElementMapping.class); + Enumeration providers = + Service.providers(org.apache.fop.fo.ElementMapping.class); if (providers != null) { - while(providers.hasMoreElements()) { + while (providers.hasMoreElements()) { String str = (String)providers.nextElement(); try { addElementMapping(str); - } catch (IllegalArgumentException e) { - } + } catch (IllegalArgumentException e) {} } } } @@ -236,42 +269,42 @@ public class Driver { /** * Set the rendering type to use. Must be one of * <ul> - * <li>RENDER_PDF - * <li>RENDER_AWT - * <li>RENDER_MIF - * <li>RENDER_XML - * <li>RENDER_PCL - * <li>RENDER_PS - * <li>RENDER_TXT + * <li>RENDER_PDF + * <li>RENDER_AWT + * <li>RENDER_MIF + * <li>RENDER_XML + * <li>RENDER_PCL + * <li>RENDER_PS + * <li>RENDER_TXT * </ul> * @param renderer the type of renderer to use */ public void setRenderer(int renderer) throws IllegalArgumentException { switch (renderer) { - case RENDER_PDF: - setRenderer(new org.apache.fop.render.pdf.PDFRenderer()); - break; - case RENDER_AWT: - throw new IllegalArgumentException("Use renderer form of setRenderer() for AWT"); - case RENDER_PRINT: - throw new IllegalArgumentException("Use renderer form of setRenderer() for PRINT"); - case RENDER_PCL: - setRenderer(new org.apache.fop.render.pcl.PCLRenderer()); - break; - case RENDER_PS: - setRenderer(new org.apache.fop.render.ps.PSRenderer()); - break; - case RENDER_TXT: - setRenderer(new org.apache.fop.render.txt.TXTRenderer()); - break; - case RENDER_MIF: - setRenderer(new org.apache.fop.render.mif.MIFRenderer()); - break; - case RENDER_XML: - setRenderer(new org.apache.fop.render.xml.XMLRenderer()); - break; - default: - throw new IllegalArgumentException("Unknown renderer type"); + case RENDER_PDF: + setRenderer(new org.apache.fop.render.pdf.PDFRenderer()); + break; + case RENDER_AWT: + throw new IllegalArgumentException("Use renderer form of setRenderer() for AWT"); + case RENDER_PRINT: + throw new IllegalArgumentException("Use renderer form of setRenderer() for PRINT"); + case RENDER_PCL: + setRenderer(new org.apache.fop.render.pcl.PCLRenderer()); + break; + case RENDER_PS: + setRenderer(new org.apache.fop.render.ps.PSRenderer()); + break; + case RENDER_TXT: + setRenderer(new org.apache.fop.render.txt.TXTRenderer()); + break; + case RENDER_MIF: + setRenderer(new org.apache.fop.render.mif.MIFRenderer()); + break; + case RENDER_XML: + setRenderer(new org.apache.fop.render.xml.XMLRenderer()); + break; + default: + throw new IllegalArgumentException("Unknown renderer type"); } } @@ -306,25 +339,23 @@ public class Driver { * @see #setRenderer(int) */ public void setRenderer(String rendererClassName) - throws IllegalArgumentException { + throws IllegalArgumentException { try { - _renderer = (Renderer) Class.forName( - rendererClassName).newInstance(); + _renderer = + (Renderer)Class.forName(rendererClassName).newInstance(); _renderer.setProducer(Version.getVersion()); } catch (ClassNotFoundException e) { - throw new IllegalArgumentException("Could not find " + - rendererClassName); - } - catch (InstantiationException e) { - throw new IllegalArgumentException( - "Could not instantiate " + rendererClassName); - } - catch (IllegalAccessException e) { - throw new IllegalArgumentException("Could not access " + - rendererClassName); - } - catch (ClassCastException e) { - throw new IllegalArgumentException(rendererClassName + " is not a renderer"); + throw new IllegalArgumentException("Could not find " + + rendererClassName); + } catch (InstantiationException e) { + throw new IllegalArgumentException("Could not instantiate " + + rendererClassName); + } catch (IllegalAccessException e) { + throw new IllegalArgumentException("Could not access " + + rendererClassName); + } catch (ClassCastException e) { + throw new IllegalArgumentException(rendererClassName + + " is not a renderer"); } } @@ -342,25 +373,23 @@ public class Driver { * add the element mapping with the given class name */ public void addElementMapping(String mappingClassName) - throws IllegalArgumentException { + throws IllegalArgumentException { try { - ElementMapping mapping = (ElementMapping) Class.forName( - mappingClassName).newInstance(); + ElementMapping mapping = + (ElementMapping)Class.forName(mappingClassName).newInstance(); addElementMapping(mapping); } catch (ClassNotFoundException e) { - throw new IllegalArgumentException("Could not find " + - mappingClassName); - } - catch (InstantiationException e) { - throw new IllegalArgumentException( - "Could not instantiate " + mappingClassName); - } - catch (IllegalAccessException e) { - throw new IllegalArgumentException("Could not access " + - mappingClassName); - } - catch (ClassCastException e) { - throw new IllegalArgumentException(mappingClassName + " is not an ElementMapping"); + throw new IllegalArgumentException("Could not find " + + mappingClassName); + } catch (InstantiationException e) { + throw new IllegalArgumentException("Could not instantiate " + + mappingClassName); + } catch (IllegalAccessException e) { + throw new IllegalArgumentException("Could not access " + + mappingClassName); + } catch (ClassCastException e) { + throw new IllegalArgumentException(mappingClassName + + " is not an ElementMapping"); } } @@ -379,21 +408,19 @@ public class Driver { * Build the formatting object tree using the given SAX Parser and * SAX InputSource */ - public synchronized void buildFOTree(XMLReader parser, - InputSource source) - throws FOPException { + public synchronized void buildFOTree(XMLReader parser, InputSource source) + throws FOPException { parser.setContentHandler(_treeBuilder); try { parser.parse(source); } catch (SAXException e) { if (e.getException() instanceof FOPException) { - throw (FOPException) e.getException(); + throw (FOPException)e.getException(); } else { throw new FOPException(e); } - } - catch (IOException e) { + } catch (IOException e) { throw new FOPException(e); } } @@ -402,7 +429,7 @@ public class Driver { * Build the formatting object tree using the given DOM Document */ public synchronized void buildFOTree(Document document) - throws FOPException { + throws FOPException { try { DocumentInputSource source = new DocumentInputSource(document); DocumentReader reader = new DocumentReader(); @@ -410,8 +437,7 @@ public class Driver { reader.parse(source); } catch (SAXException e) { throw new FOPException(e); - } - catch (IOException e) { + } catch (IOException e) { throw new FOPException(e); } @@ -424,13 +450,13 @@ public class Driver { if (_errorDump) { if (e instanceof SAXException) { e.printStackTrace(); - if (((SAXException) e).getException() != null) { - ((SAXException) e).getException().printStackTrace(); + if (((SAXException)e).getException() != null) { + ((SAXException)e).getException().printStackTrace(); } } else if (e instanceof FOPException) { e.printStackTrace(); - if (((FOPException) e).getException() != null) { - ((FOPException) e).getException().printStackTrace(); + if (((FOPException)e).getException() != null) { + ((FOPException)e).getException().printStackTrace(); } } else { e.printStackTrace(); @@ -447,8 +473,7 @@ public class Driver { /** * format the formatting object tree into an area tree */ - public synchronized void format() - throws FOPException { + public synchronized void format() throws FOPException { FontInfo fontInfo = new FontInfo(); _renderer.setupFontInfo(fontInfo); @@ -461,8 +486,7 @@ public class Driver { /** * render the area tree to the output form */ - public synchronized void render() - throws IOException, FOPException { + public synchronized void render() throws IOException, FOPException { _renderer.render(_areaTree, _stream); } @@ -470,8 +494,7 @@ public class Driver { * Runs the formatting and renderering process using the previously set * inputsource and outputstream */ - public synchronized void run() - throws IOException, FOPException { + public synchronized void run() throws IOException, FOPException { if (_renderer == null) { setRenderer(RENDER_PDF); } @@ -491,11 +514,13 @@ public class Driver { format(); render(); } + } // code stolen from org.apache.batik.util and modified slightly // does what sun.misc.Service probably does, but it cannot be relied on. // hopefully will be part of standard jdk sometime. + /** * This class loads services present in the class path. */ @@ -505,7 +530,7 @@ class Service { public static synchronized Enumeration providers(Class cls) { ClassLoader cl = cls.getClassLoader(); - String serviceFile = "META-INF/services/"+cls.getName(); + String serviceFile = "META-INF/services/" + cls.getName(); // System.out.println("File: " + serviceFile); @@ -528,8 +553,8 @@ class Service { java.net.URL u = (java.net.URL)e.nextElement(); // System.out.println("URL: " + u); - InputStream is = u.openStream(); - Reader r = new InputStreamReader(is, "UTF-8"); + InputStream is = u.openStream(); + Reader r = new InputStreamReader(is, "UTF-8"); BufferedReader br = new BufferedReader(r); String line = br.readLine(); @@ -540,7 +565,7 @@ class Service { if (idx != -1) line = line.substring(0, idx); - // Trim whitespace. + // Trim whitespace. line = line.trim(); // If nothing left then loop around... @@ -551,7 +576,7 @@ class Service { // System.out.println("Line: " + line); // Try and load the class - //Object obj = cl.loadClass(line).newInstance(); + // Object obj = cl.loadClass(line).newInstance(); // stick it into our vector... v.add(line); } catch (Exception ex) { @@ -565,5 +590,6 @@ class Service { } return v.elements(); } + } |