| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2003 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 "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 java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.io.UnsupportedEncodingException; |
| import java.net.URL; |
| import java.util.Hashtable; |
| import java.util.Stack; |
| |
| import org.xml.sax.Locator; |
| import org.xml.sax.InputSource; |
| import org.xml.sax.SAXParseException; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.helpers.DefaultHandler; |
| |
| import org.apache.tools.ant.util.JAXPUtils; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| import org.apache.tools.ant.ProjectHelper; |
| import org.apache.tools.ant.Project; |
| import org.apache.tools.ant.Target; |
| import org.apache.tools.ant.Task; |
| import org.apache.tools.ant.RuntimeConfigurable; |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.Location; |
| import org.apache.tools.ant.UnknownElement; |
| |
| import org.xml.sax.XMLReader; |
| |
| /** |
| * Sax2 based project reader |
| * |
| * @author duncan@x180.com |
| * @author Costin Manolache |
| */ |
| public class ProjectHelper2 extends ProjectHelper { |
| /* Stateless */ |
| |
| // singletons - since all state is in the context |
| private static AntHandler elementHandler = new ElementHandler(); |
| private static AntHandler targetHandler = new TargetHandler(); |
| private static AntHandler mainHandler = new MainHandler(); |
| private static AntHandler projectHandler = new ProjectHandler(); |
| |
| /** |
| * helper for path -> URI and URI -> path conversions. |
| */ |
| private static FileUtils fu = FileUtils.newFileUtils(); |
| |
| /** |
| * 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); |
| //System.out.println("Adding " + source); |
| AntXMLContext context = null; |
| context = (AntXMLContext) project.getReference("ant.parsing.context"); |
| // System.out.println("Parsing " + getImportStack().size() + " " + |
| // context+ " " + getImportStack() ); |
| if (context == null) { |
| context = new AntXMLContext(project); |
| project.addReference("ant.parsing.context", context); |
| project.addReference("ant.targets", context.getTargets()); |
| } |
| |
| if (getImportStack().size() > 1) { |
| // we are in an imported file. |
| context.setIgnoreProjectTag(true); |
| Target currentTarget = context.getCurrentTarget(); |
| try { |
| Target newCurrent = new Target(); |
| newCurrent.setProject(project); |
| newCurrent.setName(""); |
| context.setCurrentTarget(newCurrent); |
| parse(project, source, new RootHandler(context, mainHandler)); |
| newCurrent.execute(); |
| } finally { |
| context.setCurrentTarget(currentTarget); |
| } |
| } else { |
| // top level file |
| parse(project, source, new RootHandler(context, mainHandler)); |
| // Execute the top-level target |
| context.getImplicitTarget().execute(); |
| } |
| } |
| |
| /** |
| * 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; |
| buildFile = new File(buildFile.getAbsolutePath()); |
| context.setBuildFile(buildFile); |
| buildFileName = buildFile.toString(); |
| // } else if (source instanceof InputStream ) { |
| } else if (source instanceof URL) { |
| if (handler.getCurrentAntHandler() != elementHandler) { |
| throw new BuildException( |
| "Source " + source.getClass().getName() |
| + " not supported by this plugin for " |
| + " non task xml"); |
| } |
| url = (URL) source; |
| buildFileName = url.toString(); |
| // } else if (source instanceof InputSource ) { |
| } else { |
| throw new BuildException("Source " + source.getClass().getName() |
| + " not supported by this plugin"); |
| } |
| |
| InputStream inputStream = null; |
| InputSource inputSource = null; |
| |
| |
| try { |
| /** |
| * SAX 2 style parser used to parse the given file. |
| */ |
| XMLReader parser = JAXPUtils.getNamespaceXMLReader(); |
| |
| String uri = null; |
| if (buildFile != null) { |
| uri = fu.toURI(buildFile.getAbsolutePath()); |
| inputStream = new FileInputStream(buildFile); |
| } else { |
| inputStream = url.openStream(); |
| uri = url.toString(); // ?? OK ?? |
| } |
| |
| inputSource = new InputSource(inputStream); |
| if (uri != null) { |
| inputSource.setSystemId(uri); |
| } |
| project.log("parsing buildfile " + buildFileName |
| + " with URI = " + uri, 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, 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 " |
| + buildFileName + " is invalid.", |
| exc); |
| } catch (IOException exc) { |
| throw new BuildException("Error reading project file " |
| + buildFileName + ": " + 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 uri the namespace URI for the tag |
| * @param tag The name of the element being started. |
| * Will not be <code>null</code>. |
| * @param qname The qualified name of the element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * @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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * @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 { |
| } |
| |
| /** |
| * Called when this element and all elements nested into it have been |
| * handled (i.e. 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 <code>null</code>. |
| * @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 <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>. |
| * @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 = fu.fromURI(systemId); |
| |
| File file = new File(path); |
| if (!file.isAbsolute()) { |
| file = fu.resolveFile(context.getBuildFileParent(), path); |
| } |
| try { |
| InputSource inputSource = |
| new InputSource(new FileInputStream(file)); |
| inputSource.setSystemId(fu.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 |
| 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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * |
| * @exception org.xml.sax.SAXParseException if the tag given is not |
| * <code>"project"</code> |
| */ |
| public void startElement(String uri, String tag, String qname, Attributes attrs) |
| throws SAXParseException { |
| if (uri.equals(ANT_CORE_URI)) { |
| uri = ""; |
| } |
| 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.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 <code>null</code>. |
| * @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 { |
| if (uri.equals(ANT_CORE_URI)) { |
| uri = ""; |
| } |
| 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 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("")) { |
| return ProjectHelper2.projectHandler; |
| } else { |
| // if (context.importlevel > 0) { |
| // // we are in an imported file. Allow top-level <target>. |
| // if (qname.equals( "target" ) ) |
| // return ProjectHelper2.targetHandler; |
| // } |
| 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: <code>"default"</code>, |
| * <code>"name"</code>, <code>"id"</code> and <code>"basedir"</code>. |
| * |
| * @param uri The namespace URI for this element. |
| * @param tag Name of the element which caused this handler |
| * to be created. Should not be <code>null</code>. |
| * 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 <code>null</code>. |
| * @param context The current context. |
| * |
| * @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; |
| boolean nameAttributeSet = false; |
| |
| Project project = context.getProject(); |
| |
| /** 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 (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 = "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 (context.getBuildFile() != null) { |
| project.setUserProperty("ant.file." |
| + context.getCurrentProjectName(), |
| context.getBuildFile().toString()); |
| } |
| |
| 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(fu.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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * @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 |
| * <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 (name.equals("target") && uri.equals("")) { |
| return ProjectHelper2.targetHandler; |
| } else { |
| return ProjectHelper2.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 uri The namespace URI for this element. |
| * @param tag Name of the element which caused this handler |
| * to be created. Should not be <code>null</code>. |
| * 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 <code>null</code>. |
| * @param context The current context. |
| * |
| * @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(); |
| target.setProject(project); |
| 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 { |
| throw new SAXParseException("Unexpected attribute \"" |
| + key + "\"", context.getLocator()); |
| } |
| } |
| |
| if (name == null) { |
| throw new SAXParseException("target element appears without " |
| + "a name attribute", context.getLocator()); |
| } |
| |
| Hashtable currentTargets = project.getTargets(); |
| |
| // If the name has already been defined ( import for example ) |
| if (currentTargets.containsKey(name)) { |
| // Alter the name. |
| if (context.getCurrentProjectName() != null) { |
| String newName = context.getCurrentProjectName() |
| + "." + 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); |
| } |
| |
| // take care of dependencies |
| if (depends.length() > 0) { |
| target.setDepends(depends); |
| } |
| } |
| |
| /** |
| * 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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * @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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element which caused this |
| * handler to be created. Must not be <code>null</code>. |
| * @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()); |
| |
| context.configureId(task, attrs); |
| |
| if (parent != null) { |
| // Nested element |
| ((UnknownElement) parent).addChild(task); |
| } else { |
| // Task included in a target ( including the default one ). |
| context.getCurrentTarget().addTask(task); |
| } |
| |
| // 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 attrUri = attrs.getURI(i); |
| if (attrUri != null |
| && !attrUri.equals("") |
| && !attrUri.equals(uri)) { |
| continue; // Ignore attributes from unknown uris |
| } |
| String name = attrs.getLocalName(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 (name.equals("ant-type")) { |
| int index = value.indexOf(":"); |
| if (index != -1) { |
| 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 <code>null</code>. |
| * @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 <code>null</code>. |
| * @param qname The qualified name for this element. |
| * @param attrs Attributes of the element being started. |
| * Will not be <code>null</code>. |
| * @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(); |
| } |
| } |
| } |
