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apache / ant / 260c358e911341817f641033cc50ddfe78618c65 / . / trunk / proposal / embed / src / java / org / apache / tools / ant / helper / ProjectHelperImpl2.java
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/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Ant", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.tools.ant.helper;
import org.apache.tools.ant.*;
import org.apache.tools.ant.taskdefs.condition.Os;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Hashtable;
import java.util.Vector;
import java.util.Enumeration;
import java.util.Locale;
import java.util.Stack;
import java.text.CharacterIterator;
import java.text.StringCharacterIterator;
import org.xml.sax.Locator;
import org.xml.sax.InputSource;
import org.xml.sax.SAXParseException;
import org.xml.sax.XMLReader;
import org.xml.sax.SAXException;
import org.xml.sax.DocumentHandler;
import org.xml.sax.Attributes;
import org.xml.sax.AttributeList;
import org.xml.sax.helpers.XMLReaderAdapter;
import org.xml.sax.helpers.DefaultHandler;
import org.xml.sax.helpers.AttributeListImpl;
import org.apache.tools.ant.util.JAXPUtils;
import org.apache.tools.ant.util.FileUtils;
/**
* Sax2 based project reader
*
*/
public class ProjectHelperImpl2 extends ProjectHelper {
/* Stateless */
// singletons - since all state is in the context
static AntHandler elementHandler=new ElementHandler();
static AntHandler targetHandler=new TargetHandler();
static AntHandler nestedElementHandler=new NestedElementHandler();
static AntHandler mainHandler=new MainHandler();
static AntHandler projectHandler=new ProjectHandler();
/**
* helper for path -&gt; URI and URI -&gt; path conversions.
*/
private static FileUtils fu = FileUtils.newFileUtils();
/** Method to add several 'special' tasks that are specific
* to this helper. In future we could use the properties file
*/
private void hookSpecialTasks(Project project) {
try {
Class c=Class.forName("org.apache.tools.ant.taskdefs.SystemPath");
// deprecated
project.addTaskDefinition( "systemPath" , c );
// the new name ( in ant16 )
project.addTaskDefinition( "classloader" , c );
c=Class.forName("org.apache.tools.ant.taskdefs.Description");
project.addTaskDefinition( "description" , c );
c=Class.forName("org.apache.tools.ant.taskdefs.Import");
project.addTaskDefinition( "import" , c );
c=Class.forName("org.apache.tools.ant.taskdefs.Taskdef2");
project.addTaskDefinition( "taskdef" , c );
// try {
// Task t=new TaskDiscovery();
// t.setProject(project);
// t.execute();
// } catch( Exception ex ) {
// System.out.println("Can't load TaskDiscovery " + ex );
// }
} catch (Exception ex ) {
ex.printStackTrace();
}
}
public void parse(Project project, Object source) throws BuildException {
hookSpecialTasks(project);
AntXmlContext context=new AntXmlContext(project, this);
project.addReference( "ant.parsing.context", context );
parse(project, source,new RootHandler(context));
// XXX How to deal with description ??
context.implicitTarget.execute();
}
/**
* Parses the project file, configuring the project as it goes.
*
* @exception BuildException if the configuration is invalid or cannot
* be read
*/
public void parse(Project project, Object source, RootHandler handler) throws BuildException {
AntXmlContext context=handler.context;
if(source instanceof File) {
context.buildFile=(File)source;
// } else if( source instanceof InputStream ) {
// } else if( source instanceof URL ) {
// } else if( source instanceof InputSource ) {
} else {
throw new BuildException( "Source " + source.getClass().getName() +
" not supported by this plugin" );
}
FileInputStream inputStream = null;
InputSource inputSource = null;
context.buildFile = new File(context.buildFile.getAbsolutePath());
context.buildFileParent = new File(context.buildFile.getParent());
try {
/**
* SAX 2 style parser used to parse the given file.
*/
context.parser =JAXPUtils.getXMLReader();
String uri = ProjectHelperImpl2.toURI(context.buildFile.getAbsolutePath());
//String uri = "file:" + context.buildFile.getAbsolutePath().replace('\\', '/');
//for (int index = uri.indexOf('#'); index != -1; index = uri.indexOf('#')) {
// uri = uri.substring(0, index) + "%23" + uri.substring(index+1);
//}
inputStream = new FileInputStream(context.buildFile);
inputSource = new InputSource(inputStream);
inputSource.setSystemId(uri);
System.err.println("Parsing with PH2: " + context.buildFile);
project.log("parsing buildfile " + context.buildFile + " with URI = " + uri, Project.MSG_VERBOSE);
DefaultHandler hb = handler;
context.parser.setContentHandler(hb);
context.parser.setEntityResolver(hb);
context.parser.setErrorHandler(hb);
context.parser.setDTDHandler(hb);
context.parser.parse(inputSource);
} catch(SAXParseException exc) {
Location location =
new Location(exc.getSystemId(), exc.getLineNumber(), exc.getColumnNumber());
Throwable t = exc.getException();
if (t instanceof BuildException) {
BuildException be = (BuildException) t;
if (be.getLocation() == Location.UNKNOWN_LOCATION) {
be.setLocation(location);
}
throw be;
}
throw new BuildException(exc.getMessage(), t, location);
}
catch(SAXException exc) {
Throwable t = exc.getException();
if (t instanceof BuildException) {
throw (BuildException) t;
}
throw new BuildException(exc.getMessage(), t);
}
catch(FileNotFoundException exc) {
throw new BuildException(exc);
}
catch(UnsupportedEncodingException exc) {
throw new BuildException("Encoding of project file is invalid.",exc);
}
catch(IOException exc) {
throw new BuildException("Error reading project file: " +exc.getMessage(), exc);
}
finally {
if (inputStream != null) {
try {
inputStream.close();
}
catch (IOException ioe) {
// ignore this
}
}
}
}
/**
* The common superclass for all SAX event handlers used to parse
* the configuration file.
*
* The context will hold all state information. At each time
* there is one active handler for the current element. It can
* use onStartChild() to set an alternate handler for the child.
*/
public static class AntHandler {
/**
* Handles the start of an element. This base implementation does nothing.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if this method is not overridden, or in
* case of error in an overridden version
*/
public void onStartElement(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
}
/**
* Handles the start of an element. This base implementation just
* throws an exception - you must override this method if you expect
* child elements.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if this method is not overridden, or in
* case of error in an overridden version
*/
public AntHandler onStartChild(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
throw new SAXParseException("Unexpected element \"" + qname + " \"", context.locator);
}
public void onEndChild(String uri, String tag, String qname,
AntXmlContext context)
throws SAXParseException
{
}
/**
* Called when this element and all elements nested into it have been
* handled (i.e. at the </end_tag_of_the_element> ).
*/
public void onEndElement(String uri, String tag, AntXmlContext context) {
}
/**
* Handles text within an element. This base implementation just
* throws an exception, you must override it if you expect content.
*
* @param buf A character array of the text within the element.
* Will not be <code>null</code>.
* @param start The start element in the array.
* @param count The number of characters to read from the array.
*
* @exception SAXParseException if this method is not overridden, or in
* case of error in an overridden version
*/
public void characters(char[] buf, int start, int count, AntXmlContext context)
throws SAXParseException
{
String s = new String(buf, start, count).trim();
if (s.length() > 0) {
throw new SAXParseException("Unexpected text \"" + s + "\"", context.locator);
}
}
/** Will be called every time a namespace is reached.
It'll verify if the ns was processed, and if not load the task definitions.
*/
protected void checkNamespace( String uri ) {
}
}
/** Context information for the ant processing.
*/
public static class AntXmlContext {
/** The project to configure. */
private Project project;
/** The configuration file to parse. */
public File buildFile;
/**
* Parent directory of the build file. Used for resolving entities
* and setting the project's base directory.
*/
public File buildFileParent;
/** Name of the current project */
public String currentProjectName;
/**
* Locator for the configuration file parser.
* Used for giving locations of errors etc.
*/
Locator locator;
// Do we need those ?
public ProjectHelperImpl2 helper;
org.xml.sax.XMLReader parser;
/**
* Target that all other targets will depend upon implicitly.
*
* <p>This holds all tasks and data type definitions that have
* been placed outside of targets.</p>
*/
Target implicitTarget = new Target();
/** Current target ( no need for a stack as the processing model
allows only one level of target ) */
public Target currentTarget=null;
/** The stack of RuntimeConfigurable2 wrapping the
objects.
*/
Vector wStack=new Vector();
public Hashtable namespaces=new Hashtable();
// Import stuff
public boolean ignoreProjectTag=false;
public Hashtable importedFiles = new Hashtable();
public int importlevel = 0;
public AntXmlContext(Project project, ProjectHelperImpl2 helper) {
this.project=project;
implicitTarget.setName("");
this.helper=helper;
}
public Project getProject() {
return project;
}
public RuntimeConfigurable2 currentWrapper() {
if( wStack.size() < 1 ) return null;
return (RuntimeConfigurable2)wStack.elementAt( wStack.size() - 1 );
}
public RuntimeConfigurable2 parentWrapper() {
if( wStack.size() < 2 ) return null;
return (RuntimeConfigurable2)wStack.elementAt( wStack.size() - 2 );
}
public void pushWrapper( RuntimeConfigurable2 wrapper ) {
wStack.addElement(wrapper);
}
public void popWrapper() {
if( wStack.size() > 0 )
wStack.removeElementAt( wStack.size() - 1 );
}
public Vector getWrapperStack() {
return wStack;
}
/**
* Scans an attribute list for the <code>id</code> attribute and
* stores a reference to the target object in the project if an
* id is found.
* <p>
* This method was moved out of the configure method to allow
* it to be executed at parse time.
*
* @see #configure(Object,AttributeList,Project)
*/
void configureId(Object element, Attributes attr) {
String id = attr.getValue("id");
if (id != null) {
project.addReference(id, element);
}
}
}
/**
* Handler for ant processing. Uses a stack of AntHandlers to
* implement each element ( the original parser used a recursive behavior,
* with the implicit execution stack )
*/
public static class RootHandler extends DefaultHandler {
Stack antHandlers=new Stack();
AntHandler currentHandler=null;
AntXmlContext context;
public RootHandler(AntXmlContext context) {
currentHandler=ProjectHelperImpl2.mainHandler;
antHandlers.push( currentHandler );
this.context=context;
}
/**
* Resolves file: URIs relative to the build file.
*
* @param publicId The public identifer, or <code>null</code>
* if none is available. Ignored in this
* implementation.
* @param systemId The system identifier provided in the XML
* document. Will not be <code>null</code>.
*/
public InputSource resolveEntity(String publicId,
String systemId) {
context.getProject().log("resolving systemId: " + systemId, Project.MSG_VERBOSE);
if (systemId.startsWith("file:")) {
String path = ProjectHelperImpl2.fromURI(systemId);
File file = new File(path);
if (!file.isAbsolute()) {
file = fu.resolveFile(context.buildFileParent, path);
}
try {
InputSource inputSource = new InputSource(new FileInputStream(file));
inputSource.setSystemId(ProjectHelperImpl2.toURI(file.getAbsolutePath()));
return inputSource;
} catch (FileNotFoundException fne) {
context.project.log(file.getAbsolutePath() + " could not be found",
Project.MSG_WARN);
}
}
// use default if not file or file not found
return null;
}
/**
* Handles the start of a project element. A project handler is created
* and initialised with the element name and attributes.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if the tag given is not
* <code>"project"</code>
*/
public void startElement(String uri, String tag, String qname, Attributes attrs)
throws SAXParseException
{
AntHandler next=currentHandler.onStartChild(uri, tag, qname, attrs, context);
antHandlers.push( currentHandler );
currentHandler=next;
currentHandler.onStartElement( uri, tag, qname, attrs, context );
}
/**
* Sets the locator in the project helper for future reference.
*
* @param locator The locator used by the parser.
* Will not be <code>null</code>.
*/
public void setDocumentLocator(Locator locator) {
context.locator = locator;
}
/**
* Handles the end of an element. Any required clean-up is performed
* by the onEndElement() method and then the original handler is restored to
* the parser.
*
* @param name The name of the element which is ending.
* Will not be <code>null</code>.
*
* @exception SAXException in case of error (not thrown in
* this implementation)
*
*/
public void endElement(String uri, String name, String qName) throws SAXException {
currentHandler.onEndElement(uri, name, context);
AntHandler prev=(AntHandler)antHandlers.pop();
currentHandler=prev;
if( currentHandler!=null )
currentHandler.onEndChild( uri, name, qName, context );
}
public void characters(char[] buf, int start, int count)
throws SAXParseException
{
currentHandler.characters( buf, start, count, context );
}
}
public static class MainHandler extends AntHandler {
public AntHandler onStartChild(String uri, String name, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
if (qname.equals("project")) {
return ProjectHelperImpl2.projectHandler;
} else {
// if( context.importlevel > 0 ) {
// // we are in an imported file. Allow top-level <target>.
// if( qname.equals( "target" ) )
// return ProjectHelperImpl2.targetHandler;
// }
throw new SAXParseException("Unexpected element \"" + qname + "\" " + name, context.locator);
}
}
}
/**
* Handler for the top level "project" element.
*/
public static class ProjectHandler extends AntHandler {
/**
* Initialisation routine called after handler creation
* with the element name and attributes. The attributes which
* this handler can deal with are: <code>"default"</code>,
* <code>"name"</code>, <code>"id"</code> and <code>"basedir"</code>.
*
* @param tag Name of the element which caused this handler
* to be created. Should not be <code>null</code>.
* Ignored in this implementation.
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be <code>null</code>.
*
* @exception SAXParseException if an unexpected attribute is
* encountered or if the <code>"default"</code> attribute
* is missing.
*/
public void onStartElement(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
String id = null;
String baseDir = null;
Project project=context.getProject();
for (int i = 0; i < attrs.getLength(); i++) {
String key = attrs.getQName(i);
String value = attrs.getValue(i);
if (key.equals("default")) {
if ( value != null && !value.equals("")) {
if( !context.ignoreProjectTag )
project.setDefaultTarget(value);
}
} else if (key.equals("name")) {
if (value != null) {
context.currentProjectName=value;
if( !context.ignoreProjectTag ) {
project.setName(value);
project.addReference(value, project);
}
}
} else if (key.equals("id")) {
if (value != null) {
// What's the difference between id and name ?
if( !context.ignoreProjectTag ) {
project.addReference(value, project);
}
}
} else if (key.equals("basedir")) {
if( !context.ignoreProjectTag )
baseDir = value;
} else {
// XXX ignore attributes in a different NS ( maybe store them ? )
throw new SAXParseException("Unexpected attribute \"" + attrs.getQName(i) + "\"", context.locator);
}
}
project.setUserProperty("ant.file."+context.currentProjectName,
context.buildFile.toString());
if( context.ignoreProjectTag ) {
// no further processing
return;
}
// set explicitely before starting ?
if (project.getProperty("basedir") != null) {
project.setBasedir(project.getProperty("basedir"));
} else {
// Default for baseDir is the location of the build file.
if (baseDir == null) {
project.setBasedir(context.buildFileParent.getAbsolutePath());
} else {
// check whether the user has specified an absolute path
if ((new File(baseDir)).isAbsolute()) {
project.setBasedir(baseDir);
} else {
project.setBaseDir(project.resolveFile(baseDir,
context.buildFileParent));
}
}
}
project.addTarget("", context.implicitTarget);
context.currentTarget=context.implicitTarget;
}
/**
* Handles the start of a top-level element within the project. An
* appropriate handler is created and initialised with the details
* of the element.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if the tag given is not
* <code>"taskdef"</code>, <code>"typedef"</code>,
* <code>"property"</code>, <code>"target"</code>
* or a data type definition
*/
public AntHandler onStartChild(String uri, String name, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
if (qname.equals("target")) {
return ProjectHelperImpl2.targetHandler;
} else {
return ProjectHelperImpl2.elementHandler;
}
}
}
/**
* Handler for "target" elements.
*/
public static class TargetHandler extends AntHandler {
/**
* Initialisation routine called after handler creation
* with the element name and attributes. The attributes which
* this handler can deal with are: <code>"name"</code>,
* <code>"depends"</code>, <code>"if"</code>,
* <code>"unless"</code>, <code>"id"</code> and
* <code>"description"</code>.
*
* @param tag Name of the element which caused this handler
* to be created. Should not be <code>null</code>.
* Ignored in this implementation.
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be <code>null</code>.
*
* @exception SAXParseException if an unexpected attribute is encountered
* or if the <code>"name"</code> attribute is missing.
*/
public void onStartElement(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
String name = null;
String depends = "";
Project project=context.getProject();
Target target = new Target();
context.currentTarget=target;
for (int i = 0; i < attrs.getLength(); i++) {
String key = attrs.getQName(i);
String value = attrs.getValue(i);
if (key.equals("name")) {
name = value;
if( "".equals( name ) )
throw new BuildException("name attribute must not be empty");
} else if (key.equals("depends")) {
depends = value;
} else if (key.equals("if")) {
target.setIf(value);
} else if (key.equals("unless")) {
target.setUnless(value);
} else if (key.equals("id")) {
if (value != null && !value.equals("")) {
context.getProject().addReference(value, target);
}
} else if (key.equals("description")) {
target.setDescription(value);
} else {
throw new SAXParseException("Unexpected attribute \"" + key + "\"", context.locator);
}
}
if (name == null) {
throw new SAXParseException("target element appears without a name attribute",
context.locator);
}
Hashtable currentTargets = project.getTargets();
// If the name has already beend defined ( import for example )
if(currentTargets.containsKey(name)) {
// Alter the name.
if( context.currentProjectName != null ) {
String newName=context.currentProjectName + "." + name;
project.log("Already defined in main or a previous import, define "
+ name + " as " + newName,
Project.MSG_VERBOSE);
name=newName;
} else {
project.log("Already defined in main or a previous import, ignore "
+ name,
Project.MSG_VERBOSE);
name=null;
}
}
if( name != null ) {
target.setName(name);
project.addOrReplaceTarget(name, target);
}
project.log("Targets are now: "+ currentTargets ,
Project.MSG_VERBOSE);
// take care of dependencies
if (depends.length() > 0) {
target.setDepends(depends);
}
}
/**
* Handles the start of an element within a target.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if an error occurs when initialising
* the appropriate child handler
*/
public AntHandler onStartChild(String uri, String name, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
return ProjectHelperImpl2.elementHandler;
}
public void onEndElement(String uri, String tag, AntXmlContext context) {
context.currentTarget=context.implicitTarget;
}
}
/**
* Handler for all project elements ( tasks, data types )
*/
public static class ElementHandler extends AntHandler {
/**
* Constructor.
*/
public ElementHandler() {
}
/**
* Initialisation routine called after handler creation
* with the element name and attributes. This configures
* the element with its attributes and sets it up with
* its parent container (if any). Nested elements are then
* added later as the parser encounters them.
*
* @param tag Name of the element which caused this handler
* to be created. Must not be <code>null</code>.
*
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be <code>null</code>.
*
* @exception SAXParseException in case of error (not thrown in
* this implementation)
*/
public void onStartElement(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
RuntimeConfigurable2 parentWrapper=context.currentWrapper();
RuntimeConfigurable2 wrapper=null;
if (false && context.getProject().getDataTypeDefinitions().get(qname) != null) {
/*
UnknownElement should work for data types as well.
// We should eliminate the special treatement of data type.
try {
Object element = context.getProject().createDataType(qname);
if (element == null) {
// can it happen ? We just checked that the type exists
throw new BuildException("Unknown data type "+qname);
}
wrapper = new RuntimeConfigurable2(context.getProject(), null, element, qname);
wrapper.setAttributes2(attrs);
context.currentTarget.addDataType(wrapper);
} catch (BuildException exc) {
throw new SAXParseException(exc.getMessage(), context.locator, exc);
}
*/
} else {
Task task=null;
/*
// Don't try to create the task now - for consistency and to
// simplify the model it is better to keep everything lazy
try {
task = context.getProject().createTask(qname);
} catch (BuildException e) {
// swallow here, will be thrown again in
// UnknownElement.maybeConfigure if the problem persists.
}
// The consequence of lazy eval - UnknownElement must deal with
// TaskContainer case.
*/
if (task == null) {
task = new UnknownElement2(qname);
task.setProject(context.getProject());
//XXX task.setTaskType(qname);
task.setTaskName(qname);
}
Location location=new Location(context.locator.getSystemId(),
context.locator.getLineNumber(),
context.locator.getColumnNumber());
task.setLocation(location);
context.configureId(task, attrs);
task.setOwningTarget(context.currentTarget);
Object parent=null;
if( parentWrapper!=null ) {
parent=parentWrapper.getProxy();
}
// With lazy eval, parent will also be UnknwonElement ( even if the task
// is a TaskContainer ). It is UnknownElement who must check this.
if( parent instanceof TaskContainer ) {
// Task included in a TaskContainer
System.err.println("Shouldn't happen ");
/*DEBUG*/ try {throw new Exception(); } catch(Exception ex) {ex.printStackTrace();}
((TaskContainer)parent).addTask( task );
} else {
// Task included in a target ( including the default one ).
context.currentTarget.addTask( task );
}
// container.addTask(task);
task.init();
wrapper=new RuntimeConfigurable2(context.getProject(), location, task, task.getTaskName());
wrapper.setAttributes2(attrs);
if (parentWrapper != null) {
parentWrapper.addChild(wrapper);
}
}
context.pushWrapper( wrapper );
}
/**
* Adds text to the task, using the wrapper
*
* @param buf A character array of the text within the element.
* Will not be <code>null</code>.
* @param start The start element in the array.
* @param count The number of characters to read from the array.
*
* @exception SAXParseException if the element doesn't support text
*
* @see ProjectHelper#addText(Project,Object,char[],int,int)
*/
public void characters(char[] buf, int start, int count,
AntXmlContext context)
throws SAXParseException
{
RuntimeConfigurable2 wrapper=context.currentWrapper();
wrapper.addText(buf, start, count);
}
/**
* Handles the start of an element within a target. Task containers
* will always use another task handler, and all other tasks
* will always use a nested element handler.
*
* @param tag The name of the element being started.
* Will not be <code>null</code>.
* @param attrs Attributes of the element being started.
* Will not be <code>null</code>.
*
* @exception SAXParseException if an error occurs when initialising
* the appropriate child handler
*/
public AntHandler onStartChild(String uri, String tag, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
// this element
RuntimeConfigurable2 wrapper=context.currentWrapper();
Object element=wrapper.getProxy();
if (element instanceof TaskContainer) {
// task can contain other tasks - no other nested elements possible
// This will be handled inside UE
System.err.println("Shouldn't happen - UE");
/*DEBUG*/ try {throw new Exception(); } catch(Exception ex) {ex.printStackTrace();}
return ProjectHelperImpl2.elementHandler;
}
else {
return ProjectHelperImpl2.nestedElementHandler;
}
}
public void onEndElement(String uri, String tag, AntXmlContext context) {
context.popWrapper();
}
public void onEndChild(String uri, String tag, String qname,
AntXmlContext context)
throws SAXParseException
{
}
}
/**
* Handler for all nested properties. Same as ElementHandler, except that
* it doesn't deal with DataTypes and doesn't support TaskContainer.
*
* This is the original behavior - I just made few changes to avoid duplicated
* code.
*/
public static class NestedElementHandler extends ElementHandler {
/**
* Constructor.
*/
public NestedElementHandler() {
}
/**
* Initialisation routine called after handler creation
* with the element name and attributes. This configures
* the element with its attributes and sets it up with
* its parent container (if any). Nested elements are then
* added later as the parser encounters them.
*
* @param tag Name of the element which caused this handler
* to be created. Must not be <code>null</code>.
*
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be <code>null</code>.
*
* @exception SAXParseException in case of error, such as a
* BuildException being thrown during configuration.
*/
public void onStartElement(String uri, String propType, String qname,
Attributes attrs,
AntXmlContext context)
throws SAXParseException
{
RuntimeConfigurable2 parentWrapper=context.currentWrapper();
RuntimeConfigurable2 wrapper=null;
try {
Object element;
Object parent=parentWrapper.getProxy();
// Parent will allways be UnknownElement.
if (parent instanceof TaskAdapter) {
System.err.println("Shouldn't happen ");
/*DEBUG*/ try {throw new Exception(); } catch(Exception ex) {ex.printStackTrace();}
parent = ((TaskAdapter) parent).getProxy();
}
String elementName = qname.toLowerCase(Locale.US);
if (parent instanceof UnknownElement) {
UnknownElement uc = new UnknownElement2(elementName);
uc.setProject(context.getProject());
((UnknownElement) parent).addChild(uc);
element = uc;
} else {
// It may be a data type. Will be removed when we consolidate UE/RC
Class parentClass = parent.getClass();
IntrospectionHelper ih =
IntrospectionHelper.getHelper(parentClass);
element = ih.createElement(context.getProject(), parent, elementName);
}
context.configureId(element, attrs);
wrapper = new RuntimeConfigurable2(context.getProject(), null, element, qname);
wrapper.setAttributes2(attrs);
parentWrapper.addChild(wrapper);
} catch (BuildException exc) {
throw new SAXParseException(exc.getMessage(), context.locator, exc);
}
context.pushWrapper( wrapper );
}
}
// -------------------- Backward compatibility with 1.5 --------------------
/**
* Constructs a <code>file:</code> URI that represents the
* external form of the given pathname.
*
* <p>Will be an absolute URI if the given path is absolute.</p>
*
* <p>This code doesn't handle non-ASCII characters properly.</p>
*
* @since Ant 1.6
*/
public static String toURI(String path) {
StringBuffer sb = new StringBuffer("file:");
// catch exception if normalize thinks this is not an absolute path
try {
path = fu.normalize(path).getAbsolutePath();
sb.append("//");
// add an extra slash for filesystems with drive-specifiers
if (!path.startsWith("/")) {
sb.append("/");
}
} catch (BuildException e) {
// relative path
}
path = path.replace('\\', '/');
CharacterIterator iter = new StringCharacterIterator(path);
for (char c = iter.first(); c != CharacterIterator.DONE;
c = iter.next()) {
if (isSpecial[c]) {
sb.append('%');
sb.append(escapedChar1[c]);
sb.append(escapedChar2[c]);
} else {
sb.append(c);
}
}
return sb.toString();
}
/**
* Constructs a file path from a <code>file:</code> URI.
*
* <p>Will be an absolute path if the given URI is absolute.</p>
*
* <p>Swallows '%' that are not followed by two characters,
* doesn't deal with non-ASCII characters.</p>
*
* @since Ant 1.6
*/
public static String fromURI(String uri) {
if (!uri.startsWith("file:")) {
throw new IllegalArgumentException("Can only handle file: URIs");
}
if (uri.startsWith("file://")) {
uri = uri.substring(7);
} else {
uri = uri.substring(5);
}
uri = uri.replace('/', File.separatorChar);
if (Os.isFamily("dos") && uri.startsWith("\\") && uri.length() > 2
&& Character.isLetter(uri.charAt(1)) && uri.charAt(2) == ':') {
uri = uri.substring(1);
}
StringBuffer sb = new StringBuffer();
CharacterIterator iter = new StringCharacterIterator(uri);
for (char c = iter.first(); c != CharacterIterator.DONE;
c = iter.next()) {
if (c == '%') {
char c1 = iter.next();
if (c1 != CharacterIterator.DONE) {
int i1 = Character.digit(c1, 16);
char c2 = iter.next();
if (c2 != CharacterIterator.DONE) {
int i2 = Character.digit(c2, 16);
sb.append((char) ((i1 << 4) + i2));
}
}
} else {
sb.append(c);
}
}
String path = sb.toString();
// catch exception if normalize thinks this is not an absolute path
try {
path = fu.normalize(path).getAbsolutePath();
} catch (BuildException e) {
// relative path
}
return path;
}
// for toURI
private static boolean[] isSpecial = new boolean[256];
private static char[] escapedChar1 = new char[256];
private static char[] escapedChar2 = new char[256];
// stolen from FilePathToURI of the Xerces-J team
static {
for (int i = 0; i <= 0x20; i++) {
isSpecial[i] = true;
escapedChar1[i] = Character.forDigit(i >> 4, 16);
escapedChar2[i] = Character.forDigit(i & 0xf, 16);
}
isSpecial[0x7f] = true;
escapedChar1[0x7f] = '7';
escapedChar2[0x7f] = 'F';
char[] escChs = {'<', '>', '#', '%', '"', '{', '}',
'|', '\\', '^', '~', '[', ']', '`'};
int len = escChs.length;
char ch;
for (int i = 0; i < len; i++) {
ch = escChs[i];
isSpecial[ch] = true;
escapedChar1[ch] = Character.forDigit(ch >> 4, 16);
escapedChar2[ch] = Character.forDigit(ch & 0xf, 16);
}
}
}