org.eclipse.swt.snippets.SnippetLauncher.java Source code

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Here is the source code for org.eclipse.swt.snippets.SnippetLauncher.java

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/*******************************************************************************
 * Copyright (c) 2016 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * Simple "hackable" code that runs all of the SWT Snippets,
 * typically for testing. One example of a useful "hack" is
 * to add the line:
 *    if (source.indexOf("Table") == -1 && source.indexOf("Tree") == -1) continue;
 * after the line:
 *    String source = String.valueOf(buffer);
 * in order to run all of the Table and Tree Snippets.
 */
import java.io.*;
import java.lang.reflect.*;

import org.eclipse.swt.*;

public class SnippetLauncher {

    public static void main(String[] args) {
        File sourceDir = SnippetsConfig.SNIPPETS_SOURCE_DIR;
        boolean hasSource = sourceDir.exists();
        int count = 500;
        if (hasSource) {
            File[] files = sourceDir.listFiles();
            if (files.length > 0)
                count = files.length;
        }
        for (int i = 1; i < count; i++) {
            if (SnippetsConfig.isPrintingSnippet(i))
                continue; // avoid printing to printer
            String className = "Snippet" + i;
            Class<?> clazz = null;
            try {
                clazz = Class.forName(SnippetsConfig.SNIPPETS_PACKAGE + "." + className);
            } catch (ClassNotFoundException e) {
            }
            if (clazz != null) {
                System.out.println("\n" + clazz.getName());
                if (hasSource) {
                    File sourceFile = new File(sourceDir, className + ".java");
                    try (FileReader reader = new FileReader(sourceFile);) {
                        char[] buffer = new char[(int) sourceFile.length()];
                        reader.read(buffer);
                        String source = String.valueOf(buffer);
                        int start = source.indexOf("package");
                        start = source.indexOf("/*", start);
                        int end = source.indexOf("* For a list of all");
                        System.out.println(source.substring(start, end - 3));
                        boolean skip = false;
                        String platform = SWT.getPlatform();
                        if (source.contains("PocketPC")) {
                            platform = "PocketPC";
                            skip = true;
                        } else if (source.contains("OpenGL")) {
                            platform = "OpenGL";
                            skip = true;
                        } else if (source.contains("JavaXPCOM")) {
                            platform = "JavaXPCOM";
                            skip = true;
                        } else {
                            String[] platforms = { "win32", "gtk" };
                            for (int p = 0; p < platforms.length; p++) {
                                if (!platforms[p].equals(platform) && source.contains("." + platforms[p])) {
                                    platform = platforms[p];
                                    skip = true;
                                    break;
                                }
                            }
                        }
                        if (skip) {
                            System.out.println("...skipping " + platform + " example...");
                            continue;
                        }
                    } catch (Exception e) {
                    }
                }
                Method method = null;
                String[] param = SnippetsConfig.getSnippetArguments(i);
                try {
                    method = clazz.getMethod("main", param.getClass());
                } catch (NoSuchMethodException e) {
                    System.out.println("   Did not find main(String [])");
                }
                if (method != null) {
                    try {
                        method.invoke(clazz, new Object[] { param });
                    } catch (IllegalAccessException e) {
                        System.out.println("   Failed to launch (illegal access)");
                    } catch (IllegalArgumentException e) {
                        System.out.println("   Failed to launch (illegal argument to main)");
                    } catch (InvocationTargetException e) {
                        System.out.println("   Exception in Snippet: " + e.getTargetException());
                    }
                }
            }
        }
    }
}