Dissolve gerrit-server top-level directory

Change-Id: I538512dfe0f1bea774c01fdd45fa410a45634011

java/com/google/gerrit/server/args4j/AccountGroupIdHandler.java

@@ -0,0 +1,58 @@
+// Copyright (C) 2009 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.args4j;
+
+import com.google.gerrit.reviewdb.client.AccountGroup;
+import com.google.gerrit.server.account.GroupCache;
+import com.google.gerrit.server.group.InternalGroup;
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import java.util.Optional;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class AccountGroupIdHandler extends OptionHandler<AccountGroup.Id> {
+  private final GroupCache groupCache;
+
+  @Inject
+  public AccountGroupIdHandler(
+      final GroupCache groupCache,
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<AccountGroup.Id> setter) {
+    super(parser, option, setter);
+    this.groupCache = groupCache;
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    final String n = params.getParameter(0);
+    Optional<InternalGroup> group = groupCache.get(new AccountGroup.NameKey(n));
+    if (!group.isPresent()) {
+      throw new CmdLineException(owner, "Group \"" + n + "\" does not exist");
+    }
+    setter.addValue(group.get().getId());
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "GROUP";
+  }
+}

java/com/google/gerrit/server/args4j/AccountGroupUUIDHandler.java

@@ -0,0 +1,58 @@
+// Copyright (C) 2009 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.args4j;
+
+import com.google.gerrit.common.data.GroupReference;
+import com.google.gerrit.reviewdb.client.AccountGroup;
+import com.google.gerrit.server.account.GroupBackend;
+import com.google.gerrit.server.account.GroupBackends;
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class AccountGroupUUIDHandler extends OptionHandler<AccountGroup.UUID> {
+  private final GroupBackend groupBackend;
+
+  @Inject
+  public AccountGroupUUIDHandler(
+      final GroupBackend groupBackend,
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<AccountGroup.UUID> setter) {
+    super(parser, option, setter);
+    this.groupBackend = groupBackend;
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    final String n = params.getParameter(0);
+    GroupReference group = GroupBackends.findExactSuggestion(groupBackend, n);
+    if (group == null) {
+      throw new CmdLineException(owner, "Group \"" + n + "\" does not exist");
+    }
+    setter.addValue(group.getUUID());
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "GROUP";
+  }
+}

java/com/google/gerrit/server/args4j/AccountIdHandler.java

@@ -0,0 +1,110 @@
+// Copyright (C) 2009 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.args4j;
+
+import com.google.gerrit.extensions.client.AuthType;
+import com.google.gerrit.reviewdb.client.Account;
+import com.google.gerrit.server.account.AccountException;
+import com.google.gerrit.server.account.AccountManager;
+import com.google.gerrit.server.account.AccountResolver;
+import com.google.gerrit.server.account.AuthRequest;
+import com.google.gerrit.server.config.AuthConfig;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import java.io.IOException;
+import org.eclipse.jgit.errors.ConfigInvalidException;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class AccountIdHandler extends OptionHandler<Account.Id> {
+  private final AccountResolver accountResolver;
+  private final AccountManager accountManager;
+  private final AuthType authType;
+
+  @Inject
+  public AccountIdHandler(
+      AccountResolver accountResolver,
+      AccountManager accountManager,
+      AuthConfig authConfig,
+      @Assisted CmdLineParser parser,
+      @Assisted OptionDef option,
+      @Assisted Setter<Account.Id> setter) {
+    super(parser, option, setter);
+    this.accountResolver = accountResolver;
+    this.accountManager = accountManager;
+    this.authType = authConfig.getAuthType();
+  }
+
+  @Override
+  public int parseArguments(Parameters params) throws CmdLineException {
+    String token = params.getParameter(0);
+    Account.Id accountId;
+    try {
+      Account a = accountResolver.find(token);
+      if (a != null) {
+        accountId = a.getId();
+      } else {
+        switch (authType) {
+          case HTTP_LDAP:
+          case CLIENT_SSL_CERT_LDAP:
+          case LDAP:
+            accountId = createAccountByLdap(token);
+            break;
+          case CUSTOM_EXTENSION:
+          case DEVELOPMENT_BECOME_ANY_ACCOUNT:
+          case HTTP:
+          case LDAP_BIND:
+          case OAUTH:
+          case OPENID:
+          case OPENID_SSO:
+          default:
+            throw new CmdLineException(owner, "user \"" + token + "\" not found");
+        }
+      }
+    } catch (OrmException e) {
+      throw new CmdLineException(owner, "database is down");
+    } catch (IOException e) {
+      throw new CmdLineException(owner, "Failed to load account", e);
+    } catch (ConfigInvalidException e) {
+      throw new CmdLineException(owner, "Invalid account config", e);
+    }
+    setter.addValue(accountId);
+    return 1;
+  }
+
+  private Account.Id createAccountByLdap(String user) throws CmdLineException, IOException {
+    if (!user.matches(Account.USER_NAME_PATTERN)) {
+      throw new CmdLineException(owner, "user \"" + user + "\" not found");
+    }
+
+    try {
+      AuthRequest req = AuthRequest.forUser(user);
+      req.setSkipAuthentication(true);
+      return accountManager.authenticate(req).getAccountId();
+    } catch (AccountException e) {
+      throw new CmdLineException(owner, "user \"" + user + "\" not found");
+    }
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "EMAIL";
+  }
+}

java/com/google/gerrit/server/args4j/ChangeIdHandler.java

@@ -0,0 +1,77 @@
+// Copyright (C) 2012 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.args4j;
+
+import com.google.gerrit.reviewdb.client.Branch;
+import com.google.gerrit.reviewdb.client.Change;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.query.change.ChangeData;
+import com.google.gerrit.server.query.change.InternalChangeQuery;
+import com.google.gwtorm.server.OrmException;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.assistedinject.Assisted;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class ChangeIdHandler extends OptionHandler<Change.Id> {
+  private final Provider<InternalChangeQuery> queryProvider;
+
+  @Inject
+  public ChangeIdHandler(
+      // TODO(dborowitz): Not sure whether this is injectable here.
+      Provider<InternalChangeQuery> queryProvider,
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<Change.Id> setter) {
+    super(parser, option, setter);
+    this.queryProvider = queryProvider;
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    final String token = params.getParameter(0);
+    final String[] tokens = token.split(",");
+    if (tokens.length != 3) {
+      throw new CmdLineException(
+          owner, "change should be specified as <project>,<branch>,<change-id>");
+    }
+
+    try {
+      final Change.Key key = Change.Key.parse(tokens[2]);
+      final Project.NameKey project = new Project.NameKey(tokens[0]);
+      final Branch.NameKey branch = new Branch.NameKey(project, tokens[1]);
+      for (ChangeData cd : queryProvider.get().byBranchKey(branch, key)) {
+        setter.addValue(cd.getId());
+        return 1;
+      }
+    } catch (IllegalArgumentException e) {
+      throw new CmdLineException(owner, "Change-Id is not valid");
+    } catch (OrmException e) {
+      throw new CmdLineException(owner, "Database error: " + e.getMessage());
+    }
+
+    throw new CmdLineException(owner, "\"" + token + "\": change not found");
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "CHANGE";
+  }
+}

java/com/google/gerrit/server/args4j/ObjectIdHandler.java

@@ -0,0 +1,48 @@
+// Copyright (C) 2012 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.args4j;
+
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import org.eclipse.jgit.lib.ObjectId;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class ObjectIdHandler extends OptionHandler<ObjectId> {
+
+  @Inject
+  public ObjectIdHandler(
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<ObjectId> setter) {
+    super(parser, option, setter);
+  }
+
+  @Override
+  public int parseArguments(Parameters params) throws CmdLineException {
+    final String n = params.getParameter(0);
+    setter.addValue(ObjectId.fromString(n));
+    return 1;
+  }
+
+  @Override
+  public String getDefaultMetaVariable() {
+    return "COMMIT";
+  }
+}

java/com/google/gerrit/server/args4j/PatchSetIdHandler.java

@@ -0,0 +1,55 @@
+// Copyright (C) 2009 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.args4j;
+
+import com.google.gerrit.reviewdb.client.PatchSet;
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class PatchSetIdHandler extends OptionHandler<PatchSet.Id> {
+
+  @Inject
+  public PatchSetIdHandler(
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<PatchSet.Id> setter) {
+    super(parser, option, setter);
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    final String token = params.getParameter(0);
+    final PatchSet.Id id;
+    try {
+      id = PatchSet.Id.parse(token);
+    } catch (IllegalArgumentException e) {
+      throw new CmdLineException(owner, "\"" + token + "\" is not a valid patch set");
+    }
+
+    setter.addValue(id);
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "CHANGE,PATCHSET";
+  }
+}

java/com/google/gerrit/server/args4j/ProjectHandler.java

@@ -0,0 +1,103 @@
+// Copyright (C) 2009 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.args4j;
+
+import com.google.gerrit.common.ProjectUtil;
+import com.google.gerrit.extensions.restapi.AuthException;
+import com.google.gerrit.reviewdb.client.Project;
+import com.google.gerrit.server.CurrentUser;
+import com.google.gerrit.server.permissions.PermissionBackend;
+import com.google.gerrit.server.permissions.PermissionBackendException;
+import com.google.gerrit.server.permissions.ProjectPermission;
+import com.google.gerrit.server.project.NoSuchProjectException;
+import com.google.gerrit.server.project.ProjectCache;
+import com.google.gerrit.server.project.ProjectState;
+import com.google.inject.Inject;
+import com.google.inject.Provider;
+import com.google.inject.assistedinject.Assisted;
+import java.io.IOException;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ProjectHandler extends OptionHandler<ProjectState> {
+  private static final Logger log = LoggerFactory.getLogger(ProjectHandler.class);
+
+  private final ProjectCache projectCache;
+  private final PermissionBackend permissionBackend;
+  private final Provider<CurrentUser> user;
+
+  @Inject
+  public ProjectHandler(
+      ProjectCache projectCache,
+      PermissionBackend permissionBackend,
+      Provider<CurrentUser> user,
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<ProjectState> setter) {
+    super(parser, option, setter);
+    this.projectCache = projectCache;
+    this.permissionBackend = permissionBackend;
+    this.user = user;
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    String projectName = params.getParameter(0);
+
+    while (projectName.endsWith("/")) {
+      projectName = projectName.substring(0, projectName.length() - 1);
+    }
+
+    while (projectName.startsWith("/")) {
+      // Be nice and drop the leading "/" if supplied by an absolute path.
+      // We don't have a file system hierarchy, just a flat namespace in
+      // the database's Project entities. We never encode these with a
+      // leading '/' but users might accidentally include them in Git URLs.
+      //
+      projectName = projectName.substring(1);
+    }
+
+    String nameWithoutSuffix = ProjectUtil.stripGitSuffix(projectName);
+    Project.NameKey nameKey = new Project.NameKey(nameWithoutSuffix);
+
+    ProjectState state;
+    try {
+      state = projectCache.checkedGet(nameKey);
+      if (state == null) {
+        throw new CmdLineException(owner, String.format("project %s not found", nameWithoutSuffix));
+      }
+      permissionBackend.user(user).project(nameKey).check(ProjectPermission.ACCESS);
+    } catch (AuthException e) {
+      throw new CmdLineException(owner, new NoSuchProjectException(nameKey).getMessage());
+    } catch (PermissionBackendException | IOException e) {
+      log.warn("Cannot load project " + nameWithoutSuffix, e);
+      throw new CmdLineException(owner, new NoSuchProjectException(nameKey).getMessage());
+    }
+
+    setter.addValue(state);
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "PROJECT";
+  }
+}

java/com/google/gerrit/server/args4j/SocketAddressHandler.java

@@ -0,0 +1,53 @@
+// Copyright (C) 2010 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.args4j;
+
+import com.google.gerrit.server.util.SocketUtil;
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import java.net.SocketAddress;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class SocketAddressHandler extends OptionHandler<SocketAddress> {
+
+  @Inject
+  public SocketAddressHandler(
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<SocketAddress> setter) {
+    super(parser, option, setter);
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    final String token = params.getParameter(0);
+    try {
+      setter.addValue(SocketUtil.parse(token, 0));
+    } catch (IllegalArgumentException e) {
+      throw new CmdLineException(owner, e.getMessage());
+    }
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "HOST:PORT";
+  }
+}

java/com/google/gerrit/server/args4j/SubcommandHandler.java

@@ -0,0 +1,47 @@
+// Copyright (C) 2010 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.args4j;
+
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class SubcommandHandler extends OptionHandler<String> {
+
+  @Inject
+  public SubcommandHandler(
+      @Assisted final CmdLineParser parser,
+      @Assisted final OptionDef option,
+      @Assisted final Setter<String> setter) {
+    super(parser, option, setter);
+  }
+
+  @Override
+  public final int parseArguments(Parameters params) throws CmdLineException {
+    setter.addValue(params.getParameter(0));
+    owner.stopOptionParsing();
+    return 1;
+  }
+
+  @Override
+  public final String getDefaultMetaVariable() {
+    return "COMMAND";
+  }
+}

java/com/google/gerrit/server/args4j/TimestampHandler.java

@@ -0,0 +1,62 @@
+// Copyright (C) 2014 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.args4j;
+
+import com.google.inject.Inject;
+import com.google.inject.assistedinject.Assisted;
+import java.sql.Timestamp;
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.TimeZone;
+import org.kohsuke.args4j.CmdLineException;
+import org.kohsuke.args4j.CmdLineParser;
+import org.kohsuke.args4j.OptionDef;
+import org.kohsuke.args4j.spi.OptionHandler;
+import org.kohsuke.args4j.spi.Parameters;
+import org.kohsuke.args4j.spi.Setter;
+
+public class TimestampHandler extends OptionHandler<Timestamp> {
+  public static final String TIMESTAMP_FORMAT = "yyyyMMdd_HHmm";
+
+  @Inject
+  public TimestampHandler(
+      @Assisted CmdLineParser parser,
+      @Assisted OptionDef option,
+      @Assisted Setter<Timestamp> setter) {
+    super(parser, option, setter);
+  }
+
+  @Override
+  public int parseArguments(Parameters params) throws CmdLineException {
+    String timestamp = params.getParameter(0);
+    try {
+      DateFormat fmt = new SimpleDateFormat(TIMESTAMP_FORMAT);
+      fmt.setTimeZone(TimeZone.getTimeZone("UTC"));
+      setter.addValue(new Timestamp(fmt.parse(timestamp).getTime()));
+      return 1;
+    } catch (ParseException e) {
+      throw new CmdLineException(
+          owner,
+          String.format("Invalid timestamp: %s; expected format: %s", timestamp, TIMESTAMP_FORMAT),
+          e);
+    }
+  }
+
+  @Override
+  public String getDefaultMetaVariable() {
+    return "TIMESTAMP";
+  }
+}