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// Copyright (C) 2016 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.sshd;
import static java.util.stream.Collectors.toList;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.ChangeFinder;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.change.ChangeResource;
import com.google.gerrit.server.change.ChangesCollection;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.gerrit.server.project.ChangeControl;
import com.google.gerrit.server.project.NoSuchChangeException;
import com.google.gerrit.server.project.ProjectControl;
import com.google.gerrit.sshd.BaseCommand.UnloggedFailure;
import com.google.gwtorm.server.OrmException;
import com.google.inject.Inject;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Optional;
public class ChangeArgumentParser {
private final CurrentUser currentUser;
private final ChangesCollection changesCollection;
private final ChangeFinder changeFinder;
private final ReviewDb db;
private final ChangeNotes.Factory changeNotesFactory;
private final ChangeControl.GenericFactory changeControlFactory;
@Inject
ChangeArgumentParser(
CurrentUser currentUser,
ChangesCollection changesCollection,
ChangeFinder changeFinder,
ReviewDb db,
ChangeNotes.Factory changeNotesFactory,
ChangeControl.GenericFactory changeControlFactory) {
this.currentUser = currentUser;
this.changesCollection = changesCollection;
this.changeFinder = changeFinder;
this.db = db;
this.changeNotesFactory = changeNotesFactory;
this.changeControlFactory = changeControlFactory;
}
public void addChange(String id, Map<Change.Id, ChangeResource> changes)
throws UnloggedFailure, OrmException {
addChange(id, changes, null);
}
public void addChange(
String id, Map<Change.Id, ChangeResource> changes, ProjectControl projectControl)
throws UnloggedFailure, OrmException {
addChange(id, changes, projectControl, true);
}
public void addChange(
String id,
Map<Change.Id, ChangeResource> changes,
ProjectControl projectControl,
boolean useIndex)
throws UnloggedFailure, OrmException {
List<ChangeControl> matched =
useIndex ? changeFinder.find(id, currentUser) : changeFromNotesFactory(id, currentUser);
List<ChangeControl> toAdd = new ArrayList<>(changes.size());
boolean canMaintainServer =
currentUser.isIdentifiedUser()
&& currentUser.asIdentifiedUser().getCapabilities().canMaintainServer();
for (ChangeControl ctl : matched) {
if (!changes.containsKey(ctl.getId())
&& inProject(projectControl, ctl.getProject())
&& (canMaintainServer || ctl.isVisible(db))) {
toAdd.add(ctl);
}
}
if (toAdd.isEmpty()) {
throw new UnloggedFailure(1, "\"" + id + "\" no such change");
} else if (toAdd.size() > 1) {
throw new UnloggedFailure(1, "\"" + id + "\" matches multiple changes");
}
ChangeControl ctl = toAdd.get(0);
changes.put(ctl.getId(), changesCollection.parse(ctl));
}
private List<ChangeControl> changeFromNotesFactory(String id, CurrentUser currentUser)
throws OrmException, UnloggedFailure {
return changeNotesFactory
.create(db, parseId(id))
.stream()
.map(changeNote -> controlForChange(changeNote, currentUser))
.filter(changeControl -> changeControl.isPresent())
.map(changeControl -> changeControl.get())
.collect(toList());
}
private List<Change.Id> parseId(String id) throws UnloggedFailure {
try {
return Arrays.asList(new Change.Id(Integer.parseInt(id)));
} catch (NumberFormatException e) {
throw new UnloggedFailure(2, "Invalid change ID " + id, e);
}
}
private Optional<ChangeControl> controlForChange(ChangeNotes change, CurrentUser user) {
try {
return Optional.of(changeControlFactory.controlFor(change, user));
} catch (NoSuchChangeException e) {
return Optional.empty();
}
}
private boolean inProject(ProjectControl projectControl, Project project) {
if (projectControl != null) {
return projectControl.getProject().getNameKey().equals(project.getNameKey());
}
// No --project option, so they want every project.
return true;
}
}
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