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// Copyright (C) 2008 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.client.changes;
import com.google.gerrit.client.Gerrit;
import com.google.gerrit.client.rpc.GerritCallback;
import com.google.gerrit.common.PageLinks;
import com.google.gerrit.common.data.ChangeInfo;
import com.google.gerrit.common.data.SingleListChangeInfo;
import com.google.gerrit.reviewdb.client.RevId;
import com.google.gwtjsonrpc.common.AsyncCallback;
import com.google.gwtorm.client.KeyUtil;
public class QueryScreen extends PagedSingleListScreen implements
ChangeListScreen {
public static QueryScreen forQuery(String query) {
return forQuery(query, PageLinks.TOP);
}
public static QueryScreen forQuery(String query, String position) {
return new QueryScreen(KeyUtil.encode(query), position);
}
private final String query;
public QueryScreen(final String encQuery, final String positionToken) {
super("/q/" + encQuery, positionToken);
query = KeyUtil.decode(encQuery);
}
@Override
protected void onInitUI() {
super.onInitUI();
setWindowTitle(Util.M.changeQueryWindowTitle(query));
setPageTitle(Util.M.changeQueryPageTitle(query));
}
@Override
protected AsyncCallback<SingleListChangeInfo> loadCallback() {
return new GerritCallback<SingleListChangeInfo>() {
public final void onSuccess(final SingleListChangeInfo result) {
if (isAttached()) {
if (result.getChanges().size() == 1 && isSingleQuery(query)) {
final ChangeInfo c = result.getChanges().get(0);
Gerrit.display(PageLinks.toChange(c), new ChangeScreen(c));
} else {
Gerrit.setQueryString(query);
display(result);
QueryScreen.this.display();
}
}
}
};
}
@Override
protected void loadPrev() {
Util.LIST_SVC.allQueryPrev(query, pos, pageSize, loadCallback());
}
@Override
protected void loadNext() {
Util.LIST_SVC.allQueryNext(query, pos, pageSize, loadCallback());
}
private static boolean isSingleQuery(String query) {
if (query.matches("^[1-9][0-9]*$")) {
// Legacy numeric identifier.
//
return true;
}
if (query.matches("^[iI][0-9a-f]{4,}$")) {
// Newer style Change-Id.
//
return true;
}
if (query.matches("^([0-9a-fA-F]{4," + RevId.LEN + "})$")) {
// Commit SHA-1 of any change.
//
return true;
}
return false;
}
}
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