Java tutorial
/******************************************************************************* * Copyright (c) 2009 the CHISEL group and contributors. * 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: * Del Myers - initial API and implementation *******************************************************************************/ package ca.uvic.chisel.javasketch.ui.internal.presentation; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.NullProgressMonitor; import org.eclipse.jdt.core.Flags; import org.eclipse.jdt.core.IJavaElement; import org.eclipse.jdt.core.IMethod; import org.eclipse.jdt.core.IType; import org.eclipse.jdt.core.JavaModelException; import org.eclipse.jdt.core.Signature; import org.eclipse.jface.preference.IPreferenceStore; import org.eclipse.jface.viewers.IColorProvider; import org.eclipse.jface.viewers.ILabelProviderListener; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Image; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.model.WorkbenchLabelProvider; import org.eclipse.zest.custom.sequence.widgets.Lifeline; import org.eclipse.zest.custom.uml.viewers.IStylingSequenceLabelProvider; import ca.uvic.chisel.javasketch.SketchPlugin; import ca.uvic.chisel.javasketch.data.model.IActivation; import ca.uvic.chisel.javasketch.data.model.IArrival; import ca.uvic.chisel.javasketch.data.model.ICall; import ca.uvic.chisel.javasketch.data.model.IMessage; import ca.uvic.chisel.javasketch.data.model.IReply; import ca.uvic.chisel.javasketch.data.model.IThrow; import ca.uvic.chisel.javasketch.data.model.ITraceClass; import ca.uvic.chisel.javasketch.data.model.ITraceClassMethod; import ca.uvic.chisel.javasketch.data.model.ITraceModel; import ca.uvic.chisel.javasketch.internal.JavaSearchUtils; import ca.uvic.chisel.javasketch.ui.ISketchColorConstants; import ca.uvic.chisel.javasketch.ui.internal.preferences.ISketchPluginPreferences; /** * @author Del Myers * */ public class TraceThreadLabelProvider implements IStylingSequenceLabelProvider, IColorProvider { private WorkbenchLabelProvider workbenchLabelProvider; /** * */ public TraceThreadLabelProvider() { this.workbenchLabelProvider = new WorkbenchLabelProvider(); } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object) */ @Override public Image getImage(Object element) { try { IJavaElement je = null; if (element instanceof ICall) { IMessage target = ((ICall) element).getTarget(); if (target != null) { je = JavaSearchUtils.findElement(target.getActivation(), new NullProgressMonitor()); } } else if (element instanceof IReply) { return null; } else if (element instanceof ITraceModel) { je = JavaSearchUtils.findElement((ITraceModel) element, new NullProgressMonitor()); } if (je != null) { return workbenchLabelProvider.getImage(je); } } catch (InterruptedException e) { } catch (CoreException e) { } catch (Exception e) { } return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object) */ @Override public String getText(Object element) { try { IJavaElement je = null; if (element instanceof ICall) { IMessage target = ((ICall) element).getTarget(); if (target != null) { je = JavaSearchUtils.findElement(target.getActivation(), new NullProgressMonitor()); } } else if (element instanceof IThrow) { return "Exception"; } else if (element instanceof IReply) { String sig = ((IReply) element).getActivation().getMethod().getSignature(); return Signature.getSimpleName(Signature.toString(Signature.getReturnType(sig))); } else if (element instanceof ITraceModel) { je = JavaSearchUtils.findElement((ITraceModel) element, new NullProgressMonitor()); } if (je != null) { if (je instanceof IType) { IType type = (IType) je; //qualify with all the parent type names String name = type.getElementName(); if (type.isAnonymous()) { name = type.getTypeQualifiedName(); } else if (type.getOccurrenceCount() > 1) { name = type.getOccurrenceCount() + name; } IJavaElement parent = type.getParent(); while (parent != null) { if (parent instanceof IType) { IType pt = (IType) parent; int occurrence = pt.getOccurrenceCount(); if (pt.isAnonymous()) { name = occurrence + "$" + name; } else { name = ((occurrence > 1) ? occurrence : "") + pt.getElementName() + "$" + name; } } parent = parent.getParent(); } return name; } return workbenchLabelProvider.getText(je); } else if (element instanceof ITraceModel) { return uresolvedModelElement((ITraceModel) element); } } catch (InterruptedException e) { } catch (CoreException e) { } catch (Exception e) { } return (element != null) ? element.toString() : ""; } /** * @param element * @return */ private String uresolvedModelElement(ITraceModel element) { if (element instanceof ICall) { ICall call = (ICall) element; //try and get the method. if (call.getTarget() instanceof IArrival) { IActivation activation = call.getTarget().getActivation(); if (activation != null) { ITraceClassMethod method = activation.getMethod(); if (method != null) { return Signature.toString(method.getSignature(), method.getName(), null, false, false); } } } } else if (element instanceof ITraceClass) { ITraceClass clazz = (ITraceClass) element; String name = clazz.getName(); int dot = name.lastIndexOf('.'); if (dot > 0 && dot < name.length() - 1) { name = name.substring(dot + 1); } return name; } else if (element instanceof IReply) { IReply rep = (IReply) element; IActivation activation = rep.getActivation(); if (activation != null) { ITraceClassMethod method = activation.getMethod(); if (method != null) { return Signature.getSimpleName(Signature.getReturnType(method.getSignature())); } } } return ""; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IBaseLabelProvider#addListener(org.eclipse.jface.viewers.ILabelProviderListener) */ @Override public void addListener(ILabelProviderListener listener) { // TODO Auto-generated method stub } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IBaseLabelProvider#dispose() */ @Override public void dispose() { workbenchLabelProvider.dispose(); } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IBaseLabelProvider#isLabelProperty(java.lang.Object, java.lang.String) */ @Override public boolean isLabelProperty(Object element, String property) { // TODO Auto-generated method stub return true; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IBaseLabelProvider#removeListener(org.eclipse.jface.viewers.ILabelProviderListener) */ @Override public void removeListener(ILabelProviderListener listener) { // TODO Auto-generated method stub } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.IStylingSequenceLabelProvider#getLifelineStyle(java.lang.Object) */ @Override public int getLifelineStyle(Object lifelineElement) { if (lifelineElement instanceof ITraceClass) { ITraceClass tc = (ITraceClass) lifelineElement; if (tc.getName().equals("USER")) { return Lifeline.ACTOR; } } else if (lifelineElement instanceof String) { return Lifeline.PACKAGE; } return Lifeline.CLASS; } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.IStylingSequenceLabelProvider#getMessageLineStyle(java.lang.Object) */ @Override public int getMessageLineStyle(Object messageElement) { return -1; } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.IStylingSequenceLabelProvider#getMessageSourceStyle(java.lang.Object) */ @Override public int getMessageSourceStyle(Object messageElement) { return -1; } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.IStylingSequenceLabelProvider#getMessageTargetStyle(java.lang.Object) */ @Override public int getMessageTargetStyle(Object messageElement) { return -1; } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.ISequenceLabelProvider#getStereoType(java.lang.Object) */ @Override public String getStereoType(Object element) { if (element instanceof ITraceClass) { ITraceClass tc = (ITraceClass) element; if (tc.getName().equals("USER")) { return "Actor"; } } return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IColorProvider#getBackground(java.lang.Object) */ @Override public Color getBackground(Object element) { if (element instanceof IActivation) { try { IJavaElement je = JavaSearchUtils.findElement((IActivation) element, new NullProgressMonitor()); if (je instanceof IMethod) { IMethod method = (IMethod) je; int flags = method.getFlags(); if ((flags & Flags.AccPrivate) != 0) { return ISketchColorConstants.PRIVATE_BG; } else if ((flags & Flags.AccProtected) != 0) { return ISketchColorConstants.PROTECTED_BG; } else if ((flags & Flags.AccDefault) != 0) { return ISketchColorConstants.FRIEND_BG; } else if ((flags & Flags.AccPublic) != 0) { return ISketchColorConstants.PUBLIC_BG; } } } catch (JavaModelException e) { } catch (InterruptedException e) { } catch (CoreException e) { } catch (Exception e) { } } else if (element instanceof String) { return ISketchColorConstants.PACKAGE; } return null; } /* (non-Javadoc) * @see org.eclipse.jface.viewers.IColorProvider#getForeground(java.lang.Object) */ @Override public Color getForeground(Object element) { IPreferenceStore store = SketchPlugin.getDefault().getPreferenceStore(); boolean recon = store.getBoolean(ISketchPluginPreferences.DIAGRAM_RECONNAISSANCE); if (recon) { if (SketchPlugin.getDefault().getDOI().getInterest(element) < .3) { return PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_GRAY); } } if (element instanceof IActivation) { try { IJavaElement je = JavaSearchUtils.findElement((IActivation) element, new NullProgressMonitor()); if (je instanceof IMethod) { IMethod method = (IMethod) je; int flags = method.getFlags(); if ((flags & Flags.AccPrivate) != 0) { return ISketchColorConstants.PRIVATE_FG; } else if ((flags & Flags.AccProtected) != 0) { return ISketchColorConstants.PROTECTED_FG; } else if ((flags & Flags.AccDefault) != 0) { return ISketchColorConstants.FRIEND_FG; } else { return ISketchColorConstants.PUBLIC_FG; } } } catch (JavaModelException e) { } catch (InterruptedException e) { } catch (CoreException e) { } catch (Exception e) { } } else if (element instanceof IThrow) { return PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_RED); } else if (element instanceof IMessage) { return PlatformUI.getWorkbench().getDisplay().getSystemColor(SWT.COLOR_BLACK); } return null; } /* (non-Javadoc) * @see org.eclipse.zest.custom.uml.viewers.ItemLabelProvider#style(org.eclipse.zest.custom.uml.viewers.ItemLabelProvider.ItemLabel, java.lang.Object) */ // @Override // public void style(ItemLabel label, Object element) { // if (element instanceof ASTMessageGrouping) { // ASTMessageGrouping grouping = (ASTMessageGrouping) element; // IPreferenceStore store = SketchPlugin.getDefault().getPreferenceStore(); // if (store.getBoolean(ISketchPluginPreferences.DIAGRAM_RECONNAISSANCE)) { // Object a = grouping.getActivationElement(); // if (a instanceof IActivation) { // PresentationData data = PresentationData.connect(SketchPlugin.getDefault().getSketch((IActivation)a)); // try { // if (data != null) { // if (data.isGroupEmpty((IActivation) a, grouping.getNode())) { // Display disp = PlatformUI.getWorkbench().getDisplay(); // label.foreground = disp.getSystemColor(SWT.COLOR_GRAY); // label.background = disp.getSystemColor(SWT.COLOR_WHITE); // } // } // } finally { // if (data != null) { // data.disconnect(); // } // } // } // } // } // // } }