/*
* The MIT License
*
* Copyright (c) 2004-2011, Oracle Corporation, Kohsuke Kawaguchi, Nikita Levyankov
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.scm;
import com.google.common.collect.Iterators;
import hudson.MarkupText;
import hudson.Util;
import hudson.model.AbstractBuild;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import org.apache.commons.collections.CollectionUtils;
import org.kohsuke.stapler.export.Exported;
import org.kohsuke.stapler.export.ExportedBean;
/**
* Represents SCM change list.
* <p/>
* <p/>
* Use the "index" view of this object to render the changeset detail page,
* and use the "digest" view of this object to render the summary page.
* For the change list at project level, see {@link SCM}.
* <p/>
* <p/>
* {@link Iterator} is expected to return recent changes first.
*
* @author Kohsuke Kawaguchi
* @author Nikia Levyankov
*/
@ExportedBean(defaultVisibility = 999)
public abstract class ChangeLogSet<T extends ChangeLogSet.Entry> implements Iterable<T> {
/**
* {@link AbstractBuild} whose change log this object represents.
*/
//TODO: review and check whether we can do it private
public final AbstractBuild<?, ?> build;
protected ChangeLogSet(AbstractBuild<?, ?> build) {
this.build = build;
}
public AbstractBuild<?, ?> getBuild() {
return build;
}
/**
* Returns true if there's no change.
*
* @return if {@link #getLogs()} returns empty or null list
*/
public boolean isEmptySet() {
return CollectionUtils.isEmpty(getLogs());
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public Iterator<T> iterator() {
return isEmptySet()? Iterators.<T>emptyIterator(): getLogs().iterator();
}
/**
* All changes in this change set.
*/
// method for the remote API.
@Exported
public final Object[] getItems() {
List<T> r = new ArrayList<T>();
for (T t : this)
r.add(t);
return r.toArray();
}
/**
* Optional identification of the kind of SCM being used.
* @return a short token, such as the SCM's main CLI executable name
* @since 1.284
*/
@Exported
public String getKind() {
return null;
}
/**
* Returns change log entries.
*
* @return logs.
*/
public abstract Collection<T> getLogs();
/**
* Constant instance that represents no changes.
*/
public static ChangeLogSet<? extends ChangeLogSet.Entry> createEmpty(AbstractBuild build) {
return new EmptyChangeLogSet(build);
}
@ExportedBean(defaultVisibility = 999)
public static abstract class Entry implements ChangeLogEntry {
private ChangeLogSet parent;
public ChangeLogSet getParent() {
return parent;
}
/**
* Should be invoked before a {@link ChangeLogSet} is exposed to public.
*/
protected void setParent(ChangeLogSet parent) {
this.parent = parent;
}
/**
* Returns a set of paths in the workspace that was
* affected by this change.
* <p>
* Noted: since this is a new interface, some of the SCMs may not have
* implemented this interface. The default implementation for this
* interface is throw UnsupportedOperationException
* <p>
* It doesn't throw NoSuchMethodException because I rather to throw a
* runtime exception
*
* @return AffectedFile never null.
* @since 1.309
*/
public Collection<? extends AffectedFile> getAffectedFiles() {
String scm = getScmKind();
throw new UnsupportedOperationException("getAffectedFiles() is not implemented by " + scm);
}
/**
* Gets the text fully marked up by {@link ChangeLogAnnotator}.
*/
public String getMsgAnnotated() {
MarkupText markup = new MarkupText(getMsg());
for (ChangeLogAnnotator a : ChangeLogAnnotator.all())
a.annotate(parent.build,this,markup);
return markup.toString(false);
}
/**
* Message escaped for HTML
*/
public String getMsgEscaped() {
return Util.escape(getMsg());
}
/**
* {@inheritDoc}
*/
public String getCurrentRevision() {
String scm = getScmKind();
throw new UnsupportedOperationException("getCurrentRevision() is not implemented by " + scm);
}
/**
* Returns scm name.
* Help method used for throwing exception while executing unimplemented method.
*
* @return name.
*/
private String getScmKind() {
String scm = "this SCM";
ChangeLogSet parent = getParent();
if (null != parent) {
String kind = parent.getKind();
if (null != kind && kind.trim().length() > 0) {
scm = kind;
}
}
return scm;
}
}
/**
* Represents a file change. Contains filename, edit type, etc.
*
* I checked the API names against some some major SCMs and most SCMs
* can adapt to this interface with very little changes
*
* @see ChangeLogSet.Entry#getAffectedFiles()
*/
public interface AffectedFile {
/**
* The path in the workspace that was affected
* <p>
* Contains string like 'foo/bar/zot'. No leading/trailing '/',
* and separator must be normalized to '/'.
*
* @return never null.
*/
String getPath();
/**
* Return whether the file is new/modified/deleted
*/
EditType getEditType();
}
}