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// Copyright (C) 2017 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.server.permissions;
import com.google.gerrit.entities.Project;
import com.google.gerrit.extensions.api.access.CoreOrPluginProjectPermission;
import com.google.gerrit.extensions.api.access.GlobalOrPluginPermission;
import com.google.gerrit.extensions.conditions.BooleanCondition;
import com.google.gerrit.server.notedb.ChangeNotes;
import com.google.gerrit.server.permissions.PermissionBackend.ForChange;
import com.google.gerrit.server.permissions.PermissionBackend.ForProject;
import com.google.gerrit.server.permissions.PermissionBackend.ForRef;
import com.google.gerrit.server.permissions.PermissionBackend.RefFilterOptions;
import com.google.gerrit.server.permissions.PermissionBackend.WithUser;
import com.google.gerrit.server.query.change.ChangeData;
import java.util.Collection;
import java.util.Set;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.Repository;
/**
* Helpers for {@link PermissionBackend} that must fail.
*
* <p>These helpers are useful to curry failure state identified inside a non-throwing factory
* method to the throwing {@code check} or {@code test} methods.
*/
public class FailedPermissionBackend {
public static WithUser user(String message) {
return new FailedWithUser(message, null);
}
public static WithUser user(String message, Throwable cause) {
return new FailedWithUser(message, cause);
}
public static ForProject project(String message) {
return project(message, null);
}
public static ForProject project(String message, Throwable cause) {
return new FailedProject(message, cause);
}
public static ForRef ref(String message) {
return ref(message, null);
}
public static ForRef ref(String message, Throwable cause) {
return new FailedRef(message, cause);
}
public static ForChange change(String message) {
return change(message, null);
}
public static ForChange change(String message, Throwable cause) {
return new FailedChange(message, cause);
}
private FailedPermissionBackend() {}
private static class FailedWithUser extends WithUser {
private final String message;
private final Throwable cause;
FailedWithUser(String message, Throwable cause) {
this.message = message;
this.cause = cause;
}
@Override
public ForProject project(Project.NameKey project) {
return new FailedProject(message, cause);
}
@Override
public void check(GlobalOrPluginPermission perm) throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public <T extends GlobalOrPluginPermission> Set<T> test(Collection<T> permSet)
throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public BooleanCondition testCond(GlobalOrPluginPermission perm) {
throw new UnsupportedOperationException(
"FailedPermissionBackend does not support conditions");
}
}
private static class FailedProject extends ForProject {
private final String message;
private final Throwable cause;
FailedProject(String message, Throwable cause) {
this.message = message;
this.cause = cause;
}
@Override
public String resourcePath() {
throw new UnsupportedOperationException(
"FailedPermissionBackend is not scoped to a resource");
}
@Override
public ForRef ref(String ref) {
return new FailedRef(message, cause);
}
@Override
public void check(CoreOrPluginProjectPermission perm) throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public <T extends CoreOrPluginProjectPermission> Set<T> test(Collection<T> permSet)
throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public BooleanCondition testCond(CoreOrPluginProjectPermission perm) {
throw new UnsupportedOperationException(
"FailedPermissionBackend does not support conditions");
}
@Override
public Collection<Ref> filter(Collection<Ref> refs, Repository repo, RefFilterOptions opts)
throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
}
private static class FailedRef extends ForRef {
private final String message;
private final Throwable cause;
FailedRef(String message, Throwable cause) {
this.message = message;
this.cause = cause;
}
@Override
public String resourcePath() {
throw new UnsupportedOperationException(
"FailedPermissionBackend is not scoped to a resource");
}
@Override
public ForChange change(ChangeData cd) {
return new FailedChange(message, cause);
}
@Override
public ForChange change(ChangeNotes notes) {
return new FailedChange(message, cause);
}
@Override
public void check(RefPermission perm) throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public Set<RefPermission> test(Collection<RefPermission> permSet)
throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public BooleanCondition testCond(RefPermission perm) {
throw new UnsupportedOperationException(
"FailedPermissionBackend does not support conditions");
}
}
private static class FailedChange extends ForChange {
private final String message;
private final Throwable cause;
FailedChange(String message, Throwable cause) {
this.message = message;
this.cause = cause;
}
@Override
public String resourcePath() {
throw new UnsupportedOperationException(
"FailedPermissionBackend is not scoped to a resource");
}
@Override
public void check(ChangePermissionOrLabel perm) throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public <T extends ChangePermissionOrLabel> Set<T> test(Collection<T> permSet)
throws PermissionBackendException {
throw new PermissionBackendException(message, cause);
}
@Override
public BooleanCondition testCond(ChangePermissionOrLabel perm) {
throw new UnsupportedOperationException(
"FailedPermissionBackend does not support conditions");
}
}
}