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/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.examples.dsf.pda.service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.cdt.dsf.debug.service.BreakpointsMediator;
import org.eclipse.cdt.dsf.debug.service.IBreakpointAttributeTranslator;
import org.eclipse.cdt.dsf.debug.service.IBreakpoints.IBreakpointDMContext;
import org.eclipse.cdt.examples.dsf.pda.PDAPlugin;
import org.eclipse.cdt.examples.dsf.pda.breakpoints.PDALineBreakpoint;
import org.eclipse.cdt.examples.dsf.pda.breakpoints.PDAWatchpoint;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IBreakpoint;
/**
* Translator between {@link PDALineBreakpoint} object attributes and
* attributes used by the {@link PDABreakpoints} service.
* <p>
* The attribute translator is used by the standard {@link BreakpointsMediator}
* service to map between platform breakpoint attributes and target-side DSF
* breakpoint attributes. Thus, this object encapsulates the model-specific
* functionality of synchronizing target side and IDE-side breakpoint objects.
* </p>
*/
public class PDABreakpointAttributeTranslator implements IBreakpointAttributeTranslator {
// Arrays of common attributes between the two breakpoint types. These
// attributes can be copied directly without translation.
private static final String[] fgPDALineBreakpointAttributes = {
IBreakpoint.ENABLED,
IMarker.LINE_NUMBER,
};
private static final String[] fgPDAWatchpointAttributes = {
IBreakpoint.ENABLED,
PDAWatchpoint.FUNCTION_NAME,
PDAWatchpoint.VAR_NAME,
PDAWatchpoint.ACCESS,
PDAWatchpoint.MODIFICATION
};
// PDA breakpoints translator doesn't keep any state and it doesn't
// need to initialize or clean up.
public void initialize(BreakpointsMediator mediator) {
}
public void dispose() {
}
public List<Map<String, Object>> getBreakpointAttributes(IBreakpoint bp, boolean bpManagerEnabled)
throws CoreException
{
Map<String, Object> attrs = new HashMap<String, Object>();
// Check that the marker exists and retrieve its attributes.
// Due to accepted race conditions, the breakpiont marker may become null
// while this method is being invoked. In this case throw an exception
// and let the caller handle it.
IMarker marker = bp.getMarker();
if (marker == null || !marker.exists()) {
throw new DebugException(new Status(IStatus.ERROR, PDAPlugin.PLUGIN_ID, DebugException.REQUEST_FAILED, "Breakpoint marker does not exist", null));
}
// Suppress cast warning: platform is still on Java 1.3
@SuppressWarnings("unchecked")
Map<String, Object> platformBpAttrs = marker.getAttributes();
// Copy breakpoint attributes.
if (bp instanceof PDAWatchpoint) {
attrs.put(PDABreakpoints.ATTR_BREAKPOINT_TYPE, PDABreakpoints.PDA_WATCHPOINT);
copyAttributes(platformBpAttrs, attrs, fgPDAWatchpointAttributes);
} else if (bp instanceof PDALineBreakpoint) {
attrs.put(PDABreakpoints.ATTR_BREAKPOINT_TYPE, PDABreakpoints.PDA_LINE_BREAKPOINT);
attrs.put(PDABreakpoints.ATTR_PROGRAM_PATH, marker.getResource().getFullPath().toString());
copyAttributes(platformBpAttrs, attrs, fgPDALineBreakpointAttributes);
}
// If the breakpoint manager is disabled, override the enabled attribute.
if (!bpManagerEnabled) {
attrs.put(IBreakpoint.ENABLED, false);
}
// The breakpoint mediator allows for multiple target-side breakpoints
// to be created for each IDE breakpoint. Although in case of PDA this
// feature is never used, we still have to return a list of attributes.
List<Map<String, Object>> retVal = new ArrayList<Map<String, Object>>(1);
retVal.add(attrs);
return retVal;
}
private void copyAttributes(Map<String, Object> srcMap, Map<String, Object> destMap, String[] attrs) {
for (String attr : attrs) {
if (srcMap.containsKey(attr)) {
destMap.put(attr, srcMap.get(attr));
}
}
}
public boolean canUpdateAttributes(IBreakpointDMContext bp, Map<String, Object> delta) {
// PDA debugger only allows updating of the action property of the watchpoint.
// All other breakpoint updates will require a re-installation.
if (bp instanceof PDAWatchpoint) {
Map<String, Object> deltaCopy = new HashMap<String, Object>(delta);
deltaCopy.remove(PDAWatchpoint.ACCESS);
deltaCopy.remove(PDAWatchpoint.MODIFICATION);
return !deltaCopy.isEmpty();
}
return false;
}
public boolean supportsBreakpoint(IBreakpoint bp) {
return bp.getModelIdentifier().equals(PDAPlugin.ID_PDA_DEBUG_MODEL);
}
public void updateBreakpointStatus(IBreakpoint bp) {
// PDA breakpoints do not support status reporting
}
}
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