// Copyright (C) 2011 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.rules;
import static com.google.gerrit.rules.StoredValue.create;
import com.google.gerrit.extensions.client.DiffPreferencesInfo.Whitespace;
import com.google.gerrit.reviewdb.client.Account;
import com.google.gerrit.reviewdb.client.Change;
import com.google.gerrit.reviewdb.client.PatchSet;
import com.google.gerrit.reviewdb.client.PatchSetInfo;
import com.google.gerrit.reviewdb.client.Project;
import com.google.gerrit.reviewdb.server.ReviewDb;
import com.google.gerrit.server.AnonymousUser;
import com.google.gerrit.server.CurrentUser;
import com.google.gerrit.server.IdentifiedUser;
import com.google.gerrit.server.git.GitRepositoryManager;
import com.google.gerrit.server.patch.PatchList;
import com.google.gerrit.server.patch.PatchListCache;
import com.google.gerrit.server.patch.PatchListKey;
import com.google.gerrit.server.patch.PatchListNotAvailableException;
import com.google.gerrit.server.patch.PatchSetInfoFactory;
import com.google.gerrit.server.patch.PatchSetInfoNotAvailableException;
import com.google.gerrit.server.permissions.PermissionBackend;
import com.google.gerrit.server.project.ChangeControl;
import com.google.gerrit.server.query.change.ChangeData;
import com.google.gwtorm.server.OrmException;
import com.googlecode.prolog_cafe.exceptions.SystemException;
import com.googlecode.prolog_cafe.lang.Prolog;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.Repository;
public final class StoredValues {
public static final StoredValue<ReviewDb> REVIEW_DB = create(ReviewDb.class);
public static final StoredValue<ChangeData> CHANGE_DATA = create(ChangeData.class);
// Note: no guarantees are made about the user passed in the ChangeControl; do
// not depend on this directly. Either use .forUser(otherUser) to get a
// control for a specific known user, or use CURRENT_USER, which may be null
// for rule types that may not depend on the current user.
public static final StoredValue<ChangeControl> CHANGE_CONTROL = create(ChangeControl.class);
public static final StoredValue<CurrentUser> CURRENT_USER = create(CurrentUser.class);
public static Change getChange(Prolog engine) throws SystemException {
ChangeData cd = CHANGE_DATA.get(engine);
try {
return cd.change();
} catch (OrmException e) {
throw new SystemException("Cannot load change " + cd.getId());
}
}
public static PatchSet getPatchSet(Prolog engine) throws SystemException {
ChangeData cd = CHANGE_DATA.get(engine);
try {
return cd.currentPatchSet();
} catch (OrmException e) {
throw new SystemException(e.getMessage());
}
}
public static final StoredValue<PatchSetInfo> PATCH_SET_INFO =
new StoredValue<PatchSetInfo>() {
@Override
public PatchSetInfo createValue(Prolog engine) {
Change change = getChange(engine);
PatchSet ps = getPatchSet(engine);
PrologEnvironment env = (PrologEnvironment) engine.control;
PatchSetInfoFactory patchInfoFactory = env.getArgs().getPatchSetInfoFactory();
try {
return patchInfoFactory.get(change.getProject(), ps);
} catch (PatchSetInfoNotAvailableException e) {
throw new SystemException(e.getMessage());
}
}
};
public static final StoredValue<PatchList> PATCH_LIST =
new StoredValue<PatchList>() {
@Override
public PatchList createValue(Prolog engine) {
PrologEnvironment env = (PrologEnvironment) engine.control;
PatchSet ps = getPatchSet(engine);
PatchListCache plCache = env.getArgs().getPatchListCache();
Change change = getChange(engine);
Project.NameKey project = change.getProject();
ObjectId b = ObjectId.fromString(ps.getRevision().get());
Whitespace ws = Whitespace.IGNORE_NONE;
PatchListKey plKey = PatchListKey.againstDefaultBase(b, ws);
PatchList patchList;
try {
patchList = plCache.get(plKey, project);
} catch (PatchListNotAvailableException e) {
throw new SystemException("Cannot create " + plKey);
}
return patchList;
}
};
public static final StoredValue<Repository> REPOSITORY =
new StoredValue<Repository>() {
@Override
public Repository createValue(Prolog engine) {
PrologEnvironment env = (PrologEnvironment) engine.control;
GitRepositoryManager gitMgr = env.getArgs().getGitRepositoryManager();
Change change = getChange(engine);
Project.NameKey projectKey = change.getProject();
Repository repo;
try {
repo = gitMgr.openRepository(projectKey);
} catch (IOException e) {
throw new SystemException(e.getMessage());
}
env.addToCleanup(repo::close);
return repo;
}
};
public static final StoredValue<PermissionBackend> PERMISSION_BACKEND =
new StoredValue<PermissionBackend>() {
@Override
protected PermissionBackend createValue(Prolog engine) {
PrologEnvironment env = (PrologEnvironment) engine.control;
return env.getArgs().getPermissionBackend();
}
};
public static final StoredValue<AnonymousUser> ANONYMOUS_USER =
new StoredValue<AnonymousUser>() {
@Override
protected AnonymousUser createValue(Prolog engine) {
PrologEnvironment env = (PrologEnvironment) engine.control;
return env.getArgs().getAnonymousUser();
}
};
public static final StoredValue<Map<Account.Id, IdentifiedUser>> USERS =
new StoredValue<Map<Account.Id, IdentifiedUser>>() {
@Override
protected Map<Account.Id, IdentifiedUser> createValue(Prolog engine) {
return new HashMap<>();
}
};
private StoredValues() {}
}