org.eclipse.xtext.builder.smap.XbaseLineBreakpoint.java Source code

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Here is the source code for org.eclipse.xtext.builder.smap.XbaseLineBreakpoint.java

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/*******************************************************************************
 * Copyright (c) 2014 itemis AG (http://www.itemis.eu) 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
 *******************************************************************************/
package org.eclipse.xtext.builder.smap;

import java.util.Map;

import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.DebugPlugin;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.model.ISourceLocator;
import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.debug.core.IJavaReferenceType;
import org.eclipse.jdt.debug.core.IJavaStackFrame;
import org.eclipse.jdt.debug.core.IJavaType;
import org.eclipse.jdt.internal.debug.core.breakpoints.JavaStratumLineBreakpoint;

public class XbaseLineBreakpoint extends JavaStratumLineBreakpoint {

    private static final String XBASE_BREAKPOINT = "org.eclipse.xtext.xbase.ui.xbaseLineBreakpointMarker";

    public XbaseLineBreakpoint() {
    }

    public XbaseLineBreakpoint(IResource breakpointResource, String languageShortName, String typePattern, int line,
            int charStart, int charEnd, Map<String, Object> attributes) throws DebugException {
        super(breakpointResource, languageShortName, null, null, typePattern, line, charStart, charEnd, 0, true,
                attributes, XBASE_BREAKPOINT);
    }

    @Override
    protected IJavaProject getJavaProject(IJavaStackFrame stackFrame) {
        IJavaProject javaProject = super.getJavaProject(stackFrame);
        if (javaProject == null) {
            javaProject = computeJavaProject(stackFrame);
        }
        return javaProject;
    }

    //old working implementation copied from 3.8
    private IJavaProject computeJavaProject(IJavaStackFrame stackFrame) {
        ILaunch launch = stackFrame.getLaunch();
        if (launch == null) {
            return null;
        }
        ISourceLocator locator = launch.getSourceLocator();
        if (locator == null)
            return null;

        Object sourceElement = null;
        try {
            if (locator instanceof ISourceLookupDirector && !stackFrame.isStatic()) {
                IJavaType thisType = stackFrame.getThis().getJavaType();
                if (thisType instanceof IJavaReferenceType) {
                    String[] sourcePaths = ((IJavaReferenceType) thisType).getSourcePaths(null);
                    if (sourcePaths != null && sourcePaths.length > 0) {
                        sourceElement = ((ISourceLookupDirector) locator).getSourceElement(sourcePaths[0]);
                    }
                }
            }
        } catch (DebugException e) {
            DebugPlugin.log(e);
        }
        if (sourceElement == null) {
            sourceElement = locator.getSourceElement(stackFrame);
        }
        if (!(sourceElement instanceof IJavaElement) && sourceElement instanceof IAdaptable) {
            Object element = ((IAdaptable) sourceElement).getAdapter(IJavaElement.class);
            if (element != null) {
                sourceElement = element;
            }
        }
        if (sourceElement instanceof IJavaElement) {
            return ((IJavaElement) sourceElement).getJavaProject();
        } else if (sourceElement instanceof IResource) {
            IJavaProject project = JavaCore.create(((IResource) sourceElement).getProject());
            if (project.exists()) {
                return project;
            }
        }
        return null;
    }
}