| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.launching; |
| |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| |
| import javax.xml.transform.OutputKeys; |
| import javax.xml.transform.Transformer; |
| import javax.xml.transform.TransformerException; |
| import javax.xml.transform.TransformerFactory; |
| import javax.xml.transform.dom.DOMSource; |
| import javax.xml.transform.stream.StreamResult; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.ILaunchConfiguration; |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.Signature; |
| import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants; |
| import org.w3c.dom.Document; |
| |
| /** |
| * This class contains a number of static helper methods useful for the 'local Java' delegate. |
| */ |
| public class JavaLaunchConfigurationUtils { |
| |
| /** |
| * Return the <code>IType</code> referenced in the specified configuration and contained in |
| * the specified project or throw a <code>CoreException</code> whose message explains why |
| * this couldn't be done. |
| */ |
| public static IType getMainType(ILaunchConfiguration configuration, IJavaProject javaProject) throws CoreException { |
| String mainTypeName = configuration.getAttribute(IJavaLaunchConfigurationConstants.ATTR_MAIN_TYPE_NAME, (String)null); |
| return getMainType(mainTypeName, javaProject); |
| } |
| |
| /** |
| * Return the <code>IType</code> referenced by the specified name and contained in |
| * the specified project or throw a <code>CoreException</code> whose message explains why |
| * this couldn't be done. |
| */ |
| public static IType getMainType(String mainTypeName, IJavaProject javaProject) throws CoreException { |
| if ((mainTypeName == null) || (mainTypeName.trim().length() < 1)) { |
| abort(LaunchingMessages.getString("JavaLaunchConfigurationUtils.Main_type_not_specified_3"), null, IJavaLaunchConfigurationConstants.ERR_UNSPECIFIED_MAIN_TYPE); //$NON-NLS-1$ |
| } |
| IType mainType = null; |
| try { |
| mainType = findType(javaProject, mainTypeName); |
| } catch (JavaModelException jme) { |
| } |
| if (mainType == null) { |
| abort(LaunchingMessages.getString("JavaLaunchConfigurationUtils.Main_type_does_not_exist_4"), null, IJavaLaunchConfigurationConstants.ERR_UNSPECIFIED_MAIN_TYPE); //$NON-NLS-1$ |
| } |
| return mainType; |
| } |
| |
| /** |
| * Find the specified (fully-qualified) type name in the specified java project. |
| */ |
| public static IType findType(IJavaProject javaProject, String mainTypeName) throws JavaModelException { |
| String pathStr= mainTypeName.replace('.', '/') + ".java"; //$NON-NLS-1$ |
| IJavaElement javaElement= javaProject.findElement(new Path(pathStr)); |
| if (javaElement == null) { |
| return null; |
| } else if (javaElement instanceof IType) { |
| return (IType)javaElement; |
| } else if (javaElement.getElementType() == IJavaElement.COMPILATION_UNIT) { |
| String simpleName= Signature.getSimpleName(mainTypeName); |
| return ((ICompilationUnit) javaElement).getType(simpleName); |
| } else if (javaElement.getElementType() == IJavaElement.CLASS_FILE) { |
| return ((IClassFile) javaElement).getType(); |
| } |
| return null; |
| } |
| |
| /** |
| * Throws a core exception with the given message and optional |
| * exception. The exception's status code will indicate an error. |
| * |
| * @param message error message |
| * @param exception cause of the error, or <code>null</code> |
| * @exception CoreException with the given message and underlying |
| * exception |
| */ |
| protected static void abort(String message, Throwable exception, int code) throws CoreException { |
| throw new CoreException(new Status(IStatus.ERROR, LaunchingPlugin.getUniqueIdentifier(), |
| code, message, exception)); |
| } |
| |
| /** |
| * Serializes a XML document into a string - encoded in UTF8 format, |
| * with platform line separators. |
| * |
| * @param doc document to serialize |
| * @return the document as a string |
| */ |
| public static String serializeDocument(Document doc) throws IOException, TransformerException { |
| ByteArrayOutputStream s= new ByteArrayOutputStream(); |
| |
| TransformerFactory factory= TransformerFactory.newInstance(); |
| Transformer transformer= factory.newTransformer(); |
| transformer.setOutputProperty(OutputKeys.METHOD, "xml"); //$NON-NLS-1$ |
| transformer.setOutputProperty(OutputKeys.INDENT, "yes"); //$NON-NLS-1$ |
| |
| DOMSource source= new DOMSource(doc); |
| StreamResult outputTarget= new StreamResult(s); |
| transformer.transform(source, outputTarget); |
| |
| return s.toString("UTF8"); //$NON-NLS-1$ |
| } |
| } |