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/*******************************************************************************
* Copyright (C) 2010, Dariusz Luksza <dariusz@luksza.org>
*
* 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.egit.ui.internal.synchronize.mapping;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import org.eclipse.core.resources.IResource;
import org.eclipse.egit.core.Activator;
import org.eclipse.egit.ui.UIIcons;
import org.eclipse.egit.ui.UIPreferences;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelBlob;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelCommit;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelCache;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelObject;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelRepository;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelTree;
import org.eclipse.egit.ui.internal.synchronize.model.GitModelWorkingTree;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.resource.LocalResourceManager;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.jgit.lib.AbbreviatedObjectId;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectReader;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.swt.graphics.Image;
import org.eclipse.team.ui.mapping.SynchronizationLabelProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
/**
* Label provider for Git ChangeSet model.
*/
public class GitChangeSetLabelProvider extends SynchronizationLabelProvider
implements IStyledLabelProvider {
/** */
public static final String BINDING_CHANGESET_SHORT_MESSAGE = "{short_message}"; //$NON-NLS-1$
/** */
public static final String BINDING_CHANGESET_COMMITTER = "{committer}"; //$NON-NLS-1$
/** */
public static final String BINDING_CHANGESET_AUTHOR = "{author}"; //$NON-NLS-1$
/** */
public static final String BINDING_CHANGESET_DATE = "{date}"; //$NON-NLS-1$
/** */
public static final String DEFAULT_CHANGESET_FORMAT = String.format("[%s] (%s) %s", //$NON-NLS-1$
BINDING_CHANGESET_AUTHOR,
BINDING_CHANGESET_DATE,
BINDING_CHANGESET_SHORT_MESSAGE);
/** */
public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss"; //$NON-NLS-1$
private IPreferenceStore store = org.eclipse.egit.ui.Activator.getDefault().getPreferenceStore();
private final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat(
store.getString(UIPreferences.DATE_FORMAT));
private static final ILabelProvider workbenchLabelProvider = new WorkbenchLabelProvider();
private LabelProvider delegateLabelProvider;
@Override
protected ILabelProvider getDelegateLabelProvider() {
if (delegateLabelProvider == null)
delegateLabelProvider = new DelegateLabelProvider();
return delegateLabelProvider;
}
private static class DelegateLabelProvider extends LabelProvider {
private final ResourceManager fImageCache = new LocalResourceManager(
JFaceResources.getResources());
public String getText(Object element) {
if (element instanceof GitModelObject)
return ((GitModelObject) element).getName();
return null;
}
public Image getImage(Object element) {
if (element instanceof GitModelBlob) {
Object adapter = ((GitModelBlob) element)
.getAdapter(IResource.class);
return workbenchLabelProvider.getImage(adapter);
}
if (element instanceof GitModelTree) {
Object adapter = ((GitModelTree) element)
.getAdapter(IResource.class);
return workbenchLabelProvider.getImage(adapter);
}
if (element instanceof GitModelCommit
|| element instanceof GitModelCache
|| element instanceof GitModelWorkingTree)
return fImageCache.createImage(UIIcons.CHANGESET);
if (element instanceof GitModelRepository)
return fImageCache.createImage(UIIcons.REPOSITORY);
return super.getImage(element);
}
@Override
public void dispose() {
fImageCache.dispose();
super.dispose();
}
}
public StyledString getStyledText(Object element) {
String rawText = getText(element);
// need to compare classes as everything is 'instanceof GitModelCommit'
if (element.getClass().equals(GitModelCommit.class)) {
String formattedName = createChangeSetLabel((GitModelCommit) element);
StyledString string = new StyledString(formattedName);
GitModelCommit commit = (GitModelCommit) element;
String format = " [" + getAbbreviatedId(commit) + "]"; //$NON-NLS-1$//$NON-NLS-2$
string.append(format, StyledString.DECORATIONS_STYLER);
return string;
}
return new StyledString(rawText);
}
private String createChangeSetLabel(GitModelCommit commit) {
String format = store.getString(UIPreferences.SYNC_VIEW_CHANGESET_LABEL_FORMAT);
RevCommit baseCommit = commit.getBaseCommit();
Map<String, String> bindings = new HashMap<String, String>();
bindings.put(BINDING_CHANGESET_DATE, DATE_FORMAT.format(baseCommit.getAuthorIdent().getWhen()));
bindings.put(BINDING_CHANGESET_AUTHOR, baseCommit.getAuthorIdent().getName());
bindings.put(BINDING_CHANGESET_COMMITTER, baseCommit.getCommitterIdent().getName());
bindings.put(BINDING_CHANGESET_SHORT_MESSAGE, baseCommit.getShortMessage());
return formatName(format, bindings);
}
/**
* @param format
* @param bindings
* @return formatted commit name
*/
public static String formatName(final String format, Map<String, String> bindings) {
String result = format;
for (Entry<String, String> e : bindings.entrySet()) {
result = result.replace(e.getKey(), e.getValue());
}
return result;
}
private String getAbbreviatedId(GitModelCommit commit) {
RevCommit remoteCommit = commit.getBaseCommit();
ObjectReader reader = commit.getRepository().newObjectReader();
ObjectId commitId = remoteCommit.getId();
AbbreviatedObjectId shortId;
try {
shortId = reader.abbreviate(commitId, 6);
} catch (IOException e) {
shortId = AbbreviatedObjectId.fromObjectId(ObjectId.zeroId());
Activator.logError(e.getMessage(), e);
} finally {
reader.release();
}
return shortId.name();
}
}
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