/
TextDebugTarget.java
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/
TextDebugTarget.java
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package com.codeandme.debugger.textinterpreter.debugger.model;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IMarkerDelta;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugEvent;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.model.IBreakpoint;
import org.eclipse.debug.core.model.IDebugTarget;
import org.eclipse.debug.core.model.IMemoryBlock;
import org.eclipse.debug.core.model.IProcess;
import com.codeandme.debugger.textinterpreter.debugger.Activator;
import com.codeandme.debugger.textinterpreter.debugger.dispatcher.EventDispatchJob;
import com.codeandme.debugger.textinterpreter.debugger.dispatcher.IEventProcessor;
import com.codeandme.debugger.textinterpreter.debugger.events.IDebugEvent;
import com.codeandme.debugger.textinterpreter.debugger.events.debugger.DebuggerStartedEvent;
import com.codeandme.debugger.textinterpreter.debugger.events.debugger.ResumedEvent;
import com.codeandme.debugger.textinterpreter.debugger.events.debugger.TerminatedEvent;
import com.codeandme.debugger.textinterpreter.debugger.events.model.ResumeRequest;
public class TextDebugTarget extends TextDebugElement implements IDebugTarget, IEventProcessor {
public enum State {
NOT_STARTED, SUSPENDED, RESUMED, TERMINATED, DISCONNECTED
};
private EventDispatchJob fDispatcher;
private final TextProcess fProcess;
private final List<TextThread> fThreads = new ArrayList<TextThread>();
private final ILaunch fLaunch;
private State fState = State.NOT_STARTED;
private final IFile fFile;
public TextDebugTarget(final ILaunch launch, IFile file) {
super(null);
fLaunch = launch;
fFile = file;
fireCreationEvent();
// create a process
fProcess = new TextProcess(this);
fProcess.fireCreationEvent();
}
public void setEventDispatcher(final EventDispatchJob dispatcher) {
fDispatcher = dispatcher;
}
/**
* Pass an event to the {@link EventDispatchJob} where it is handled
* asynchronously.
*
* @param event
* event to handle
*/
void fireModelEvent(final IDebugEvent event) {
if (Activator.getDefault().isDebugging())
System.out.println("Model : new " + event);
fDispatcher.addEvent(event);
}
@Override
public void handleEvent(final IDebugEvent event) {
if (!isDisconnected()) {
if (Activator.getDefault().isDebugging())
System.out.println("Model : process " + event);
if (event instanceof DebuggerStartedEvent) {
// create debug thread
TextThread thread = new TextThread(this);
fThreads.add(thread);
thread.fireCreationEvent();
// debugger got started and waits in suspended mode
fState = State.SUSPENDED;
// inform eclipse of suspended state
fireSuspendEvent(DebugEvent.CLIENT_REQUEST);
} else if (event instanceof ResumedEvent) {
fState = State.RESUMED;
// inform eclipse of resumed state
fireResumeEvent(DebugEvent.UNSPECIFIED);
} else if (event instanceof TerminatedEvent) {
// debugger is terminated
fState = State.TERMINATED;
// we do not need our dispatcher anymore
fDispatcher.terminate();
// inform eclipse of terminated state
fireTerminateEvent();
}
}
}
@Override
public ILaunch getLaunch() {
return fLaunch;
}
@Override
public IProcess getProcess() {
return fProcess;
}
@Override
public TextThread[] getThreads() {
return fThreads.toArray(new TextThread[fThreads.size()]);
}
@Override
public boolean hasThreads() {
return !fThreads.isEmpty();
}
@Override
public String getName() {
return "Text DebugTarget";
}
@Override
public boolean supportsBreakpoint(final IBreakpoint breakpoint) {
return false;
}
@Override
public TextDebugTarget getDebugTarget() {
return this;
}
// ************************************************************
// IBreakpointListener
// ************************************************************
@Override
public void breakpointAdded(final IBreakpoint breakpoint) {
}
@Override
public void breakpointRemoved(final IBreakpoint breakpoint, final IMarkerDelta delta) {
}
@Override
public void breakpointChanged(final IBreakpoint breakpoint, final IMarkerDelta delta) {
}
// ************************************************************
// IDisconnect
// ************************************************************
@Override
public boolean canDisconnect() {
return false;
}
@Override
public void disconnect() throws DebugException {
throw new DebugException(new Status(IStatus.ERROR, "com.codeandme.textinterpreter.debugger", "disconnect() not supported"));
}
@Override
public boolean isDisconnected() {
return false;
}
// ************************************************************
// ITerminate
// ************************************************************
@Override
public boolean canTerminate() {
return false;
}
@Override
public boolean isTerminated() {
return (fState == State.TERMINATED);
}
@Override
public void terminate() throws DebugException {
throw new DebugException(new Status(IStatus.ERROR, "com.codeandme.textinterpreter.debugger", "disconnect() not supported"));
}
// ************************************************************
// ISuspendResume
// ************************************************************
@Override
public boolean canResume() {
return isSuspended();
}
@Override
public boolean canSuspend() {
// we cannot interrupt our debugger once it is running
return false;
}
@Override
public boolean isSuspended() {
return (fState == State.SUSPENDED);
}
@Override
public void resume() {
// resume request from eclipse
// send resume request to debugger
fireModelEvent(new ResumeRequest());
}
@Override
public void suspend() throws DebugException {
throw new DebugException(new Status(IStatus.ERROR, "com.codeandme.textinterpreter.debugger", "suspend() not supported"));
}
// ************************************************************
// IMemoryBlockRetrieval
// ************************************************************
@Override
public boolean supportsStorageRetrieval() {
return false;
}
@Override
public IMemoryBlock getMemoryBlock(final long startAddress, final long length) throws DebugException {
throw new DebugException(new Status(IStatus.ERROR, "com.codeandme.textinterpreter.debugger", "getMemoryBlock() not supported"));
}
}