This implementation returns true.
* * @since Ant 1.8.0 */ public boolean canParseAntlibDescriptor(Resource resource) { return true; } /** * Parse the given URL as an antlib descriptor an return the * content as something that can be turned into an Antlib task. * *simply delegates to {@link #parseUnknownElement * parseUnknownElement} if the resource provides an URL and throws * an exceptipn otherwise.
* * @since Ant 1.8.0 */ public UnknownElement parseAntlibDescriptor(Project containingProject, Resource resource) { URLProvider up = (URLProvider) resource.as(URLProvider.class); if (up == null) { throw new BuildException("Unsupported resource type: " + resource); } return parseUnknownElement(containingProject, up.getURL()); } /** * Parse an unknown element from a url * * @param project the current project * @param source the url containing the task * @return a configured task * @exception BuildException if an error occurs */ public UnknownElement parseUnknownElement(Project project, URL source) throws BuildException { Target dummyTarget = new Target(); dummyTarget.setProject(project); AntXMLContext context = new AntXMLContext(project); context.addTarget(dummyTarget); context.setImplicitTarget(dummyTarget); parse(context.getProject(), source, new RootHandler(context, elementHandler)); Task[] tasks = dummyTarget.getTasks(); if (tasks.length != 1) { throw new BuildException("No tasks defined"); } return (UnknownElement) tasks[0]; } /** * Parse a source xml input. * * @param project the current project * @param source the xml source * @exception BuildException if an error occurs */ public void parse(Project project, Object source) throws BuildException { getImportStack().addElement(source); AntXMLContext context = null; context = (AntXMLContext) project.getReference(REFID_CONTEXT); if (context == null) { context = new AntXMLContext(project); project.addReference(REFID_CONTEXT, context); project.addReference(REFID_TARGETS, context.getTargets()); } if (getImportStack().size() > 1) { // we are in an imported file. context.setIgnoreProjectTag(true); Target currentTarget = context.getCurrentTarget(); Target currentImplicit = context.getImplicitTarget(); Map currentTargets = context.getCurrentTargets(); try { Target newCurrent = new Target(); newCurrent.setProject(project); newCurrent.setName(""); context.setCurrentTarget(newCurrent); context.setCurrentTargets(new HashMap()); context.setImplicitTarget(newCurrent); parse(project, source, new RootHandler(context, mainHandler)); newCurrent.execute(); } finally { context.setCurrentTarget(currentTarget); context.setImplicitTarget(currentImplicit); context.setCurrentTargets(currentTargets); } } else { // top level file context.setCurrentTargets(new HashMap()); parse(project, source, new RootHandler(context, mainHandler)); // Execute the top-level target context.getImplicitTarget().execute(); // pop the extension stack after implicit target execution in root if (getExtensionStack().size() > 0) { // pop and handle all extensionOfs Iterator i = getExtensionStack().iterator(); while (i.hasNext()) { Map extensionInfo = (Map)i.next(); String tgName = (String)extensionInfo.get("tgName"); String name = (String)extensionInfo.get("name"); Hashtable projectTargets = project.getTargets(); if (!projectTargets.containsKey(tgName)) { throw new BuildException("can't add target " + name + " to extension-point " + tgName + " because the extension-point" + " is unknown."); } Target t = (Target) projectTargets.get(tgName); if (!(t instanceof ExtensionPoint)) { throw new BuildException("referenced target " + tgName + " is not an extension-point"); } t.addDependency(name); } } } } /** * Parses the project file, configuring the project as it goes. * * @param project the current project * @param source the xml source * @param handler the root handler to use (contains the current context) * @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; File buildFile = null; URL url = null; String buildFileName = null; if (source instanceof File) { buildFile = (File) source; } else if (source instanceof URL) { url = (URL) source; } else if (source instanceof Resource) { FileProvider fp = (FileProvider) ((Resource) source).as(FileProvider.class); if (fp != null) { buildFile = fp.getFile(); } else { URLProvider up = (URLProvider) ((Resource) source).as(URLProvider.class); if (up != null) { url = up.getURL(); } } } if (buildFile != null) { buildFile = FILE_UTILS.normalize(buildFile.getAbsolutePath()); context.setBuildFile(buildFile); buildFileName = buildFile.toString(); } else if (url != null) { try { context.setBuildFile((File) null); context.setBuildFile(url); } catch (java.net.MalformedURLException ex) { throw new BuildException(ex); } buildFileName = url.toString(); } else { throw new BuildException("Source " + source.getClass().getName() + " not supported by this plugin"); } InputStream inputStream = null; InputSource inputSource = null; ZipFile zf = null; try { /** * SAX 2 style parser used to parse the given file. */ XMLReader parser = JAXPUtils.getNamespaceXMLReader(); String uri = null; if (buildFile != null) { uri = FILE_UTILS.toURI(buildFile.getAbsolutePath()); inputStream = new FileInputStream(buildFile); } else { uri = url.toString(); int pling = -1; if (uri.startsWith("jar:file") && (pling = uri.indexOf("!")) > -1) { zf = new ZipFile(org.apache.tools.ant.launch.Locator .fromJarURI(uri), "UTF-8"); inputStream = zf.getInputStream(zf.getEntry(uri.substring(pling + 1))); } else { inputStream = url.openStream(); } } inputSource = new InputSource(inputStream); if (uri != null) { inputSource.setSystemId(uri); } project.log("parsing buildfile " + buildFileName + " with URI = " + uri + (zf != null ? " from a zip file" : ""), Project.MSG_VERBOSE); DefaultHandler hb = handler; parser.setContentHandler(hb); parser.setEntityResolver(hb); parser.setErrorHandler(hb); parser.setDTDHandler(hb); 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 == null ? exc : t, location); } catch (SAXException exc) { Throwable t = exc.getException(); if (t instanceof BuildException) { throw (BuildException) t; } throw new BuildException(exc.getMessage(), t == null ? exc : t); } catch (FileNotFoundException exc) { throw new BuildException(exc); } catch (UnsupportedEncodingException exc) { throw new BuildException("Encoding of project file " + buildFileName + " is invalid.", exc); } catch (IOException exc) { throw new BuildException("Error reading project file " + buildFileName + ": " + exc.getMessage(), exc); } finally { FileUtils.close(inputStream); ZipFile.closeQuietly(zf); } } /** * Returns main handler * @return main handler */ protected static AntHandler getMainHandler() { return mainHandler; } /** * Sets main handler * @param handler new main handler */ protected static void setMainHandler(AntHandler handler) { mainHandler = handler; } /** * Returns project handler * @return project handler */ protected static AntHandler getProjectHandler() { return projectHandler; } /** * Sets project handler * @param handler new project handler */ protected static void setProjectHandler(AntHandler handler) { projectHandler = handler; } /** * Returns target handler * @return target handler */ protected static AntHandler getTargetHandler() { return targetHandler; } /** * Sets target handler * @param handler new target handler */ protected static void setTargetHandler(AntHandler handler) { targetHandler = handler; } /** * Returns element handler * @return element handler */ protected static AntHandler getElementHandler() { return elementHandler; } /** * Sets element handler * @param handler new element handler */ protected static void setElementHandler(AntHandler handler) { elementHandler = handler; } /** * 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 uri the namespace URI for the tag * @param tag The name of the element being started. * Will not benull.
* @param qname The qualified name of the element.
* @param attrs Attributes of the element being started.
* Will not be null.
* @param context The context that this element is in.
*
* @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 uri The namespace uri for this element.
* @param tag The name of the element being started.
* Will not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element being started.
* Will not be null.
* @param context The current context.
* @return a handler (in the derived classes)
*
* @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
.getLocator());
}
/**
* Handle the end of a element.
*
* @param uri the namespace uri of the element
* @param tag the tag of the element
* @param qname the qualified name of the element
* @param context the current context
* @exception SAXParseException if an error occurs
*/
public void onEndChild(String uri, String tag, String qname, AntXMLContext context)
throws SAXParseException {
}
/**
* This method is called when this element and all elements nested into it have been
* handled. I.e., this happens at the </end_tag_of_the_element>.
* @param uri the namespace uri for this element
* @param tag the element name
* @param context the current context
*/
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 null.
* @param start The start element in the array.
* @param count The number of characters to read from the array.
* @param context The current context.
*
* @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.getLocator());
}
}
/**
* Will be called every time a namespace is reached.
* It'll verify if the ns was processed, and if not load the task definitions.
* @param uri The namespace uri.
*/
protected void checkNamespace(String uri) {
}
}
/**
* 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 {
private Stack antHandlers = new Stack();
private AntHandler currentHandler = null;
private AntXMLContext context;
/**
* Creates a new RootHandler instance.
*
* @param context The context for the handler.
* @param rootHandler The handler for the root element.
*/
public RootHandler(AntXMLContext context, AntHandler rootHandler) {
currentHandler = rootHandler;
antHandlers.push(currentHandler);
this.context = context;
}
/**
* Returns the current ant handler object.
* @return the current ant handler.
*/
public AntHandler getCurrentAntHandler() {
return currentHandler;
}
/**
* Resolves file: URIs relative to the build file.
*
* @param publicId The public identifier, or null
* if none is available. Ignored in this
* implementation.
* @param systemId The system identifier provided in the XML
* document. Will not be null.
* @return an inputsource for this identifier
*/
public InputSource resolveEntity(String publicId, String systemId) {
context.getProject().log("resolving systemId: " + systemId, Project.MSG_VERBOSE);
if (systemId.startsWith("file:")) {
String path = FILE_UTILS.fromURI(systemId);
File file = new File(path);
if (!file.isAbsolute()) {
file = FILE_UTILS.resolveFile(context.getBuildFileParent(), path);
context.getProject().log(
"Warning: '" + systemId + "' in " + context.getBuildFile()
+ " should be expressed simply as '" + path.replace('\\', '/')
+ "' for compliance with other XML tools", Project.MSG_WARN);
}
context.getProject().log("file=" + file, Project.MSG_DEBUG);
try {
InputSource inputSource = new InputSource(new FileInputStream(file));
inputSource.setSystemId(FILE_UTILS.toURI(file.getAbsolutePath()));
return inputSource;
} catch (FileNotFoundException fne) {
context.getProject().log(file.getAbsolutePath() + " could not be found",
Project.MSG_WARN);
}
}
// use default if not file or file not found
context.getProject().log("could not resolve systemId", Project.MSG_DEBUG);
return null;
}
/**
* Handles the start of a project element. A project handler is created
* and initialised with the element name and attributes.
*
* @param uri The namespace uri for this element.
* @param tag The name of the element being started.
* Will not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element being started.
* Will not be null.
*
* @exception org.xml.sax.SAXParseException if the tag given is not
* "project"
*/
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 null.
*/
public void setDocumentLocator(Locator locator) {
context.setLocator(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 uri The namespace URI for this element.
* @param name The name of the element which is ending.
* Will not be null.
* @param qName The qualified name for this element.
*
* @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);
}
}
/**
* Handle text within an element, calls currentHandler.characters.
*
* @param buf A character array of the test.
* @param start The start offset in the array.
* @param count The number of characters to read.
* @exception SAXParseException if an error occurs
*/
public void characters(char[] buf, int start, int count) throws SAXParseException {
currentHandler.characters(buf, start, count, context);
}
/**
* Start a namespace prefix to uri mapping
*
* @param prefix the namespace prefix
* @param uri the namespace uri
*/
public void startPrefixMapping(String prefix, String uri) {
context.startPrefixMapping(prefix, uri);
}
/**
* End a namepace prefix to uri mapping
*
* @param prefix the prefix that is not mapped anymore
*/
public void endPrefixMapping(String prefix) {
context.endPrefixMapping(prefix);
}
}
/**
* The main handler - it handles the <project> tag.
*
* @see org.apache.tools.ant.helper.ProjectHelper2.AntHandler
*/
public static class MainHandler extends AntHandler {
/**
* Handle the project tag
*
* @param uri The namespace uri.
* @param name The element tag.
* @param qname The element qualified name.
* @param attrs The attributes of the element.
* @param context The current context.
* @return The project handler that handles subelements of project
* @exception SAXParseException if the qualified name is not "project".
*/
public AntHandler onStartChild(String uri, String name, String qname, Attributes attrs,
AntXMLContext context) throws SAXParseException {
if (name.equals("project")
&& (uri.equals("") || uri.equals(ANT_CORE_URI))) {
return ProjectHelper2.projectHandler;
}
if (name.equals(qname)) {
throw new SAXParseException("Unexpected element \"{" + uri
+ "}" + name + "\" {" + ANT_CORE_URI + "}" + name, context.getLocator());
}
throw new SAXParseException("Unexpected element \"" + qname
+ "\" " + name, context.getLocator());
}
}
/**
* 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: "default",
* "name", "id" and "basedir".
*
* @param uri The namespace URI for this element.
* @param tag Name of the element which caused this handler
* to be created. Should not be null.
* Ignored in this implementation.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be null.
* @param context The current context.
*
* @exception SAXParseException if an unexpected attribute is
* encountered or if the "default" attribute
* is missing.
*/
public void onStartElement(String uri, String tag, String qname, Attributes attrs,
AntXMLContext context) throws SAXParseException {
String baseDir = null;
boolean nameAttributeSet = false;
Project project = context.getProject();
// Set the location of the implicit target associated with the project tag
context.getImplicitTarget().setLocation(new Location(context.getLocator()));
/** XXX I really don't like this - the XML processor is still
* too 'involved' in the processing. A better solution (IMO)
* would be to create UE for Project and Target too, and
* then process the tree and have Project/Target deal with
* its attributes ( similar with Description ).
*
* If we eventually switch to ( or add support for ) DOM,
* things will work smoothly - UE can be avoided almost completely
* ( it could still be created on demand, for backward compatibility )
*/
for (int i = 0; i < attrs.getLength(); i++) {
String attrUri = attrs.getURI(i);
if (attrUri != null && !attrUri.equals("") && !attrUri.equals(uri)) {
continue; // Ignore attributes from unknown uris
}
String key = attrs.getLocalName(i);
String value = attrs.getValue(i);
if (key.equals("default")) {
if (value != null && !value.equals("")) {
if (!context.isIgnoringProjectTag()) {
project.setDefault(value);
}
}
} else if (key.equals("name")) {
if (value != null) {
context.setCurrentProjectName(value);
nameAttributeSet = true;
if (!context.isIgnoringProjectTag()) {
project.setName(value);
project.addReference(value, project);
} else if (isInIncludeMode()) {
if (!"".equals(value)
&& (getCurrentTargetPrefix() == null
|| getCurrentTargetPrefix().length() == 0)
) {
// help nested include tasks
setCurrentTargetPrefix(value);
}
}
}
} else if (key.equals("id")) {
if (value != null) {
// What's the difference between id and name ?
if (!context.isIgnoringProjectTag()) {
project.addReference(value, project);
}
}
} else if (key.equals("basedir")) {
if (!context.isIgnoringProjectTag()) {
baseDir = value;
}
} else {
// XXX ignore attributes in a different NS ( maybe store them ? )
throw new SAXParseException("Unexpected attribute \"" + attrs.getQName(i)
+ "\"", context.getLocator());
}
}
// XXX Move to Project ( so it is shared by all helpers )
String antFileProp =
MagicNames.ANT_FILE + "." + context.getCurrentProjectName();
String dup = project.getProperty(antFileProp);
if (dup != null && nameAttributeSet) {
File dupFile = new File(dup);
if (context.isIgnoringProjectTag() && !dupFile.equals(context.getBuildFile())) {
project.log("Duplicated project name in import. Project "
+ context.getCurrentProjectName() + " defined first in " + dup
+ " and again in " + context.getBuildFile(), Project.MSG_WARN);
}
}
if (nameAttributeSet) {
String typeProp = MagicNames.ANT_FILE_TYPE + "."
+ context.getCurrentProjectName();
if (context.getBuildFile() != null) {
project.setUserProperty(antFileProp,
context.getBuildFile().toString());
project.setUserProperty(typeProp,
MagicNames.ANT_FILE_TYPE_FILE);
} else if (context.getBuildFileURL() != null) {
project.setUserProperty(antFileProp,
context.getBuildFileURL().toString());
project.setUserProperty(typeProp,
MagicNames.ANT_FILE_TYPE_URL);
}
}
if (context.isIgnoringProjectTag()) {
// no further processing
return;
}
// set explicitly 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.getBuildFileParent().getAbsolutePath());
} else {
// check whether the user has specified an absolute path
if ((new File(baseDir)).isAbsolute()) {
project.setBasedir(baseDir);
} else {
project.setBaseDir(FILE_UTILS.resolveFile(context.getBuildFileParent(),
baseDir));
}
}
}
project.addTarget("", context.getImplicitTarget());
context.setCurrentTarget(context.getImplicitTarget());
}
/**
* 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 uri The namespace URI for this element.
* @param name The name of the element being started.
* Will not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element being started.
* Will not be null.
* @param context The context for this element.
* @return a target or an element handler.
*
* @exception org.xml.sax.SAXParseException if the tag given is not
* "taskdef", "typedef",
* "property", "target",
* "extension-point"
* or a data type definition
*/
public AntHandler onStartChild(String uri, String name, String qname, Attributes attrs,
AntXMLContext context) throws SAXParseException {
return (name.equals("target") || name.equals("extension-point"))
&& (uri.equals("") || uri.equals(ANT_CORE_URI))
? ProjectHelper2.targetHandler : ProjectHelper2.elementHandler;
}
}
/**
* Handler for "target" and "extension-point" 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: "name",
* "depends", "if",
* "unless", "id" and
* "description".
*
* @param uri The namespace URI for this element.
* @param tag Name of the element which caused this handler
* to be created. Should not be null.
* Ignored in this implementation.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be null.
* @param context The current context.
*
* @exception SAXParseException if an unexpected attribute is encountered
* or if the "name" attribute is missing.
*/
public void onStartElement(String uri, String tag, String qname, Attributes attrs,
AntXMLContext context) throws SAXParseException {
String name = null;
String depends = "";
String extensionPoint = null;
Project project = context.getProject();
Target target = "target".equals(tag)
? new Target() : new ExtensionPoint();
target.setProject(project);
target.setLocation(new Location(context.getLocator()));
context.addTarget(target);
for (int i = 0; i < attrs.getLength(); i++) {
String attrUri = attrs.getURI(i);
if (attrUri != null && !attrUri.equals("") && !attrUri.equals(uri)) {
continue; // Ignore attributes from unknown uris
}
String key = attrs.getLocalName(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 if (key.equals("extensionOf")) {
extensionPoint = value;
} else {
throw new SAXParseException("Unexpected attribute \"" + key + "\"", context
.getLocator());
}
}
if (name == null) {
throw new SAXParseException("target element appears without a name attribute",
context.getLocator());
}
String prefix = null;
boolean isInIncludeMode =
context.isIgnoringProjectTag() && isInIncludeMode();
String sep = getCurrentPrefixSeparator();
if (isInIncludeMode) {
prefix = getTargetPrefix(context);
if (prefix == null) {
throw new BuildException("can't include build file "
+ context.getBuildFile()
+ ", no as attribute has been given"
+ " and the project tag doesn't"
+ " specify a name attribute");
}
name = prefix + sep + name;
}
// Check if this target is in the current build file
if (context.getCurrentTargets().get(name) != null) {
throw new BuildException("Duplicate target '" + name + "'",
target.getLocation());
}
Hashtable projectTargets = project.getTargets();
boolean usedTarget = false;
// If the name has not already been defined define it
if (projectTargets.containsKey(name)) {
project.log("Already defined in main or a previous import, ignore " + name,
Project.MSG_VERBOSE);
} else {
target.setName(name);
context.getCurrentTargets().put(name, target);
project.addOrReplaceTarget(name, target);
usedTarget = true;
}
if (depends.length() > 0) {
if (!isInIncludeMode) {
target.setDepends(depends);
} else {
for (Iterator iter =
Target.parseDepends(depends, name, "depends")
.iterator();
iter.hasNext(); ) {
target.addDependency(prefix + sep + iter.next());
}
}
}
if (!isInIncludeMode && context.isIgnoringProjectTag()
&& (prefix = getTargetPrefix(context)) != null) {
// In an imported file (and not completely
// ignoring the project tag or having a preconfigured prefix)
String newName = prefix + sep + name;
Target newTarget = usedTarget ? new Target(target) : target;
newTarget.setName(newName);
context.getCurrentTargets().put(newName, newTarget);
project.addOrReplaceTarget(newName, newTarget);
}
if (extensionPoint != null) {
ProjectHelper helper =
(ProjectHelper) context.getProject().
getReference(ProjectHelper.PROJECTHELPER_REFERENCE);
for (Iterator iter =
Target.parseDepends(extensionPoint, name, "extensionOf")
.iterator();
iter.hasNext(); ) {
String tgName = (String) iter.next();
if (isInIncludeMode()) {
tgName = prefix + sep + tgName;
}
//--- move to later in project
HashMap extensionInfo = new HashMap(2);
extensionInfo.put("tgName", tgName);
extensionInfo.put("name", name);
helper.getExtensionStack().add(extensionInfo);
}
}
}
private String getTargetPrefix(AntXMLContext context) {
String configuredValue = getCurrentTargetPrefix();
if (configuredValue != null && configuredValue.length() == 0) {
configuredValue = null;
}
if (configuredValue != null) {
return configuredValue;
}
String projectName = context.getCurrentProjectName();
if ("".equals(projectName)) {
projectName = null;
}
return projectName;
}
/**
* Handles the start of an element within a target.
*
* @param uri The namespace URI for this element.
* @param name The name of the element being started.
* Will not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element being started.
* Will not be null.
* @param context The current context.
* @return an element handler.
*
* @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 ProjectHelper2.elementHandler;
}
/**
* Handle the end of the project, sets the current target of the
* context to be the implicit target.
*
* @param uri The namespace URI of the element.
* @param tag The name of the element.
* @param context The current context.
*/
public void onEndElement(String uri, String tag, AntXMLContext context) {
context.setCurrentTarget(context.getImplicitTarget());
}
}
/**
* 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 uri The namespace URI for this element.
* @param tag Name of the element which caused this handler
* to be created. Must not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element which caused this
* handler to be created. Must not be null.
* @param context The current context.
*
* @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 {
RuntimeConfigurable parentWrapper = context.currentWrapper();
Object parent = null;
if (parentWrapper != null) {
parent = parentWrapper.getProxy();
}
/* UnknownElement is used for tasks and data types - with
delayed eval */
UnknownElement task = new UnknownElement(tag);
task.setProject(context.getProject());
task.setNamespace(uri);
task.setQName(qname);
task.setTaskType(ProjectHelper.genComponentName(task.getNamespace(), tag));
task.setTaskName(qname);
Location location = new Location(context.getLocator().getSystemId(), context
.getLocator().getLineNumber(), context.getLocator().getColumnNumber());
task.setLocation(location);
task.setOwningTarget(context.getCurrentTarget());
if (parent != null) {
// Nested element
((UnknownElement) parent).addChild(task);
} else {
// Task included in a target ( including the default one ).
context.getCurrentTarget().addTask(task);
}
context.configureId(task, attrs);
// container.addTask(task);
// This is a nop in UE: task.init();
RuntimeConfigurable wrapper = new RuntimeConfigurable(task, task.getTaskName());
for (int i = 0; i < attrs.getLength(); i++) {
String name = attrs.getLocalName(i);
String attrUri = attrs.getURI(i);
if (attrUri != null && !attrUri.equals("") && !attrUri.equals(uri)) {
name = attrUri + ":" + attrs.getQName(i);
}
String value = attrs.getValue(i);
// PR: Hack for ant-type value
// an ant-type is a component name which can
// be namespaced, need to extract the name
// and convert from qualified name to uri/name
if (ANT_TYPE.equals(name)
|| (ANT_CORE_URI.equals(attrUri)
&& ANT_TYPE.equals(attrs.getLocalName(i)))) {
name = ANT_TYPE;
int index = value.indexOf(":");
if (index >= 0) {
String prefix = value.substring(0, index);
String mappedUri = context.getPrefixMapping(prefix);
if (mappedUri == null) {
throw new BuildException("Unable to find XML NS prefix \"" + prefix
+ "\"");
}
value = ProjectHelper.genComponentName(mappedUri, value
.substring(index + 1));
}
}
wrapper.setAttribute(name, value);
}
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 null.
* @param start The start element in the array.
* @param count The number of characters to read from the array.
* @param context The current context.
*
* @exception SAXParseException if the element doesn't support text
*
* @see ProjectHelper#addText(Project,java.lang.Object,char[],int,int)
*/
public void characters(char[] buf, int start, int count,
AntXMLContext context) throws SAXParseException {
RuntimeConfigurable 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 uri The namespace URI for this element.
* @param tag The name of the element being started.
* Will not be null.
* @param qname The qualified name for this element.
* @param attrs Attributes of the element being started.
* Will not be null.
* @param context The current context.
* @return The handler for elements.
*
* @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 {
return ProjectHelper2.elementHandler;
}
/**
* Handles the end of the element. This pops the wrapper from
* the context.
*
* @param uri The namespace URI for the element.
* @param tag The name of the element.
* @param context The current context.
*/
public void onEndElement(String uri, String tag, AntXMLContext context) {
context.popWrapper();
}
}
}