Java tutorial
// ============================================================================ // // Copyright (C) 2006-2017 Talend Inc. - www.talend.com // // This source code is available under agreement available at // %InstallDIR%\features\org.talend.rcp.branding.%PRODUCTNAME%\%PRODUCTNAME%license.txt // // You should have received a copy of the agreement // along with this program; if not, write to Talend SA // 9 rue Pages 92150 Suresnes, France // // ============================================================================ package com.amalto.workbench.compare; import java.io.ByteArrayInputStream; import java.io.InputStream; import java.lang.reflect.InvocationTargetException; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.eclipse.compare.BufferedContent; import org.eclipse.compare.CompareConfiguration; import org.eclipse.compare.CompareEditorInput; import org.eclipse.compare.CompareUI; import org.eclipse.compare.IModificationDate; import org.eclipse.compare.IStreamContentAccessor; import org.eclipse.compare.ITypedElement; import org.eclipse.compare.structuremergeviewer.DiffNode; import org.eclipse.compare.structuremergeviewer.Differencer; import org.eclipse.compare.structuremergeviewer.IDiffContainer; import org.eclipse.core.resources.IFile; import org.eclipse.core.resources.IProject; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jface.action.IAction; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.graphics.Image; import org.eclipse.ui.IWorkbenchWindow; import org.eclipse.ui.IWorkbenchWindowActionDelegate; /** * just for test * * @author achen * */ public class CompareEditorAction implements IWorkbenchWindowActionDelegate { private static Log log = LogFactory.getLog(CompareEditorAction.class); CompareConfiguration cc = new CompareConfiguration(); public void run(IAction action) { cc.setLeftEditable(true); cc.setRightEditable(false); // cc.setAncestorLabel("ancestor"); IProject prj = CompareManager.getInstance().createProject("test1111");//$NON-NLS-1$ IFile leftF = prj.getFile("left");//$NON-NLS-1$ IFile rightF = prj.getFile("right");//$NON-NLS-1$ String left = "aaaaaaaaa\n\nee";//$NON-NLS-1$ String right = ";dfeadf\n";//$NON-NLS-1$ try { leftF.create(new ByteArrayInputStream(left.getBytes()), IFile.FORCE, null); rightF.create(new ByteArrayInputStream(right.getBytes()), IFile.FORCE, null); } catch (CoreException e) { log.error(e.getMessage(), e); } ResourceCompareInput input = new ResourceCompareInput(cc); StructuredSelection sel = new StructuredSelection(new IFile[] { leftF, rightF }); input.setSelection(sel, null); CompareUI.openCompareEditor(input); // CompareUI.openCompareEditor(new MyCompareInput(cc)); } class CompareInput extends CompareEditorInput { public CompareInput() { super(cc); } protected Object prepareInput(IProgressMonitor pm) { CompareItem ancestor = new CompareItem("Common", "contents");//$NON-NLS-1$//$NON-NLS-2$ CompareItem left = new CompareItem("Left", "new contents\nadd\n\ndddddd");//$NON-NLS-1$//$NON-NLS-2$ CompareItem right = new CompareItem("Right", "old contents");//$NON-NLS-1$//$NON-NLS-2$ return new DiffNode(null, Differencer.CONFLICTING, ancestor, left, right); } @Override public void saveChanges(IProgressMonitor monitor) throws CoreException { super.saveChanges(monitor); } @Override public boolean isSaveNeeded() { return true; } } class CompareItem implements IStreamContentAccessor, ITypedElement, IModificationDate { private String contents, name; private long time; CompareItem(String name, String contents, long time) { this.name = name; this.contents = contents; this.time = time; } CompareItem(String name, String contents) { this(name, contents, System.currentTimeMillis()); } public InputStream getContents() throws CoreException { return new ByteArrayInputStream(contents.getBytes()); } public Image getImage() { return null; } public long getModificationDate() { return time; } public String getName() { return name; } public String getString() { return contents; } public String getType() { return ITypedElement.TEXT_TYPE; } } public void dispose() { } public void init(IWorkbenchWindow window) { } public void selectionChanged(IAction action, ISelection selection) { } class MyCompareInput extends CompareEditorInput { public MyCompareInput(CompareConfiguration configuration) { super(configuration); // TODO Auto-generated constructor stub } @Override protected Object prepareInput(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException { Differencer d = new Differencer() { protected Object visit(Object parent, int description, Object ancestor, Object left, Object right) { return new MyDiffNode((IDiffContainer) parent, description, (ITypedElement) ancestor, (ITypedElement) left, (ITypedElement) right); } }; MyCompareNode ancester = new MyCompareNode("aaaaaaaaa");//$NON-NLS-1$ MyCompareNode left = new MyCompareNode("aaaaaaaaa");//$NON-NLS-1$ MyCompareNode right = new MyCompareNode("aaaaaaaaa\nnd\neefaa");//$NON-NLS-1$ return d.findDifferences(true, null, null, ancester, left, right); } @Override public void saveChanges(IProgressMonitor monitor) throws CoreException { super.saveChanges(monitor); } @Override public boolean isDirty() { return super.isDirty(); } class MyDiffNode extends DiffNode { private boolean fDirty = false; private ITypedElement fLastId; private String fLastName; public MyDiffNode(IDiffContainer parent, int description, ITypedElement ancestor, ITypedElement left, ITypedElement right) { super(parent, description, ancestor, left, right); } public void fireChange() { super.fireChange(); setDirty(true); fDirty = true; } void clearDirty() { fDirty = false; } public String getName() { if (fLastName == null) fLastName = super.getName(); if (fDirty) return '<' + fLastName + '>'; return fLastName; } public ITypedElement getId() { ITypedElement id = super.getId(); if (id == null) return fLastId; fLastId = id; return id; } } class MyCompareNode extends BufferedContent implements ITypedElement { private String fResource; MyCompareNode(String resource) { fResource = resource; } protected InputStream createStream() throws CoreException { InputStream is = null; is = new ByteArrayInputStream(fResource.getBytes()); return is; } public Image getImage() { return null; } public String getName() { return null; } public String getType() { return ITypedElement.TEXT_TYPE; } } } }