costin 2002/12/23 17:25:09 Added: src/main/org/apache/tools/ant/taskdefs ImportTask.java Log: <import> task. This is almost the same as in embed, except few simplifications and cleanups. Revision Changes Path 1.1 jakarta-ant/src/main/org/apache/tools/ant/taskdefs/ImportTask.java Index: ImportTask.java =================================================================== /* * 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 [EMAIL PROTECTED] * * 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.taskdefs; import org.apache.tools.ant.*; import org.apache.tools.ant.helper.ProjectHelper2; import java.io.File; import java.io.IOException; /** * EXPERIMENTAL * Import task. * * It must be 'top level'. On execution it'll read another file * into the same Project. * * Important: there is one limitation related with the top level * elements in the imported files. The current implementation will * add them at the end of the top-level ( instead of replacing the * import element - which would be more intuitive ). * * * @author Nicola Ken Barozzi [EMAIL PROTECTED] * @author Dominique Devienne [EMAIL PROTECTED] * @author Costin Manolache */ public class ImportTask extends Task { String file; public void setFile( String file ) { // I don't think we can use File - different rules // for relative paths. this.file=file; } /** * This relies on the task order model. * */ public void execute() throws BuildException { if (file == null) { throw new BuildException("import requires file attribute"); } ProjectHelper2.AntXmlContext context; context=(ProjectHelper2.AntXmlContext)project.getReference("ant.parsing.context"); context.importlevel++; project.log("Importing file "+file +" from "+ context.buildFile.getAbsolutePath() + "( level=" + context.importlevel + " )", Project.MSG_VERBOSE); // Paths are relative to the build file they're imported from, // *not* the current directory (same as entity includes). File importedFile = new File(file); if (!importedFile.isAbsolute()) { importedFile = new File(context.buildFileParent, file); } if (!importedFile.exists()) { throw new BuildException("Cannot find "+file+" imported from "+ context.buildFile.getAbsolutePath()); } // Add parent build file to the map to avoid cycles... String parentFilename = getPath(context.buildFile); if (!context.importedFiles.containsKey(parentFilename)) { context.importedFiles.put(parentFilename, context.buildFile); } // Make sure we import the file only once String importedFilename = getPath(importedFile); if (context.importedFiles.containsKey(importedFilename)) { project.log("\nSkipped already imported file:\n "+ importedFilename+"\n",Project.MSG_WARN); context.importlevel--; return; } else { context.importedFiles.put(importedFilename, importedFile); } context.ignoreProjectTag=true; context.helper.parse(project, importedFile, new ProjectHelper2.RootHandler(context)); context.importlevel--; } private static String getPath(File file) { try { return file.getCanonicalPath(); } catch (IOException e) { return file.getAbsolutePath(); } } }
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