| /******************************************************************************* |
| * Copyright (c) 2008, 2018 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.debug.examples.core.midi.launcher; |
| |
| import java.io.BufferedInputStream; |
| import java.io.IOException; |
| |
| import javax.sound.midi.InvalidMidiDataException; |
| import javax.sound.midi.MidiFileFormat; |
| import javax.sound.midi.MidiSystem; |
| import javax.sound.midi.MidiUnavailableException; |
| import javax.sound.midi.Sequencer; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IWorkspaceRoot; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.ILaunchConfiguration; |
| import org.eclipse.debug.core.model.LaunchConfigurationDelegate; |
| import org.eclipse.debug.examples.core.pda.DebugCorePlugin; |
| |
| /** |
| * Creates and starts a MIDI sequencer. |
| * |
| * @since 1.0 |
| */ |
| public class MidiLaunchDelegate extends LaunchConfigurationDelegate { |
| |
| /** |
| * Identifier for the MIDI launch configuration type |
| * (value <code>midi.launchType</code>) |
| */ |
| public static final String ID_MIDI_LAUNCH_CONFIGURATION_TYPE = "midi.launchType"; //$NON-NLS-1$ |
| |
| /** |
| * Launch configuration attribute for the MIDI file to play |
| * (value <code>midi.file</code>) |
| */ |
| public static final String ATTR_MIDI_FILE = "midi.file"; //$NON-NLS-1$ |
| |
| /** |
| * Launch configuration attribute for the MIDI launcher. Specifies whether to throw |
| * an exception when present. Value is one of <code>HANDLED</code> or <code>UNHANDLED</code>. |
| */ |
| public static final String ATTR_THROW_EXCEPTION = "throw.exception"; //$NON-NLS-1$ |
| |
| /** |
| * Possible values for the <code>ATTR_THROW_EXCEPTION</code>. |
| */ |
| public static final String HANDLED = "HANDLED"; //$NON-NLS-1$ |
| public static final String UNHANDLED = "UNHANDLED"; //$NON-NLS-1$ |
| |
| @Override |
| public void launch(ILaunchConfiguration configuration, String mode, ILaunch launch, IProgressMonitor monitor) throws CoreException { |
| String excep = configuration.getAttribute(ATTR_THROW_EXCEPTION, (String)null); |
| if (excep != null) { |
| if (HANDLED.equals(excep)) { |
| throw new CoreException(new Status(IStatus.ERROR, DebugCorePlugin.PLUGIN_ID, 303, "Test handled exception during launch", null)); //$NON-NLS-1$ |
| } else { |
| throw new CoreException(new Status(IStatus.ERROR, DebugCorePlugin.PLUGIN_ID, "Test unhandled exception during launch", new Error("Test unhandled exception during launch"))); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| } |
| String fileName = configuration.getAttribute(ATTR_MIDI_FILE, (String)null); |
| if (fileName == null) { |
| abort("MIDI file not specified.", null); //$NON-NLS-1$ |
| } |
| IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot(); |
| IFile file = root.getFile(new Path(fileName)); |
| if (!file.exists()) { |
| abort("MIDI file does not exist.", null); //$NON-NLS-1$ |
| } |
| Sequencer sequencer = null; |
| MidiFileFormat fileFormat = null; |
| try { |
| sequencer = MidiSystem.getSequencer(); |
| sequencer.open(); |
| IPath location = file.getLocation(); |
| if (location != null) { |
| fileFormat = MidiSystem.getMidiFileFormat(location.toFile()); |
| } |
| } catch (MidiUnavailableException e) { |
| abort("Cannot initialize sequencer.", e); //$NON-NLS-1$ |
| } catch (InvalidMidiDataException e) { |
| abort("Invalid MIDI file.", e); //$NON-NLS-1$ |
| } catch (IOException e) { |
| abort("Error reading MIDI file.", e); //$NON-NLS-1$ |
| } |
| if(sequencer != null) { |
| BufferedInputStream stream = new BufferedInputStream(file.getContents()); |
| try { |
| sequencer.setSequence(stream); |
| } catch (IOException e) { |
| abort("Error reading MIDI file", e); //$NON-NLS-1$ |
| } catch (InvalidMidiDataException e) { |
| abort("Inavlid MIDI file.", e); //$NON-NLS-1$ |
| } |
| MidiLaunch midiLaunch = (MidiLaunch)launch; |
| midiLaunch.setSequencer(sequencer); |
| midiLaunch.setFormat(fileFormat); |
| sequencer.start(); |
| } |
| else { |
| abort("Could not create the sequencer", null); //$NON-NLS-1$ |
| } |
| } |
| |
| /** |
| * Throws an exception with a new status containing the given |
| * message and optional exception. |
| * |
| * @param message error message |
| * @param e underlying exception |
| * @throws CoreException |
| */ |
| private void abort(String message, Throwable e) throws CoreException { |
| throw new CoreException(new Status(IStatus.ERROR, DebugCorePlugin.PLUGIN_ID, 0, message, e)); |
| } |
| |
| @Override |
| public ILaunch getLaunch(ILaunchConfiguration configuration, String mode) throws CoreException { |
| return new MidiLaunch(configuration, mode); |
| } |
| |
| @Override |
| public boolean buildForLaunch(ILaunchConfiguration configuration, String mode, IProgressMonitor monitor) throws CoreException { |
| return false; |
| } |
| |
| |
| |
| } |