142 lines
4.7 KiB
Java
142 lines
4.7 KiB
Java
// Copyright (C) 2013 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package com.google.gerrit.server.api.changes;
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import static com.google.common.base.Preconditions.checkState;
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import static com.google.gerrit.server.api.ApiUtil.asRestApiException;
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import static java.util.Objects.requireNonNull;
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import com.google.common.base.Joiner;
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import com.google.common.collect.ImmutableList;
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import com.google.gerrit.extensions.api.changes.ChangeApi;
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import com.google.gerrit.extensions.api.changes.Changes;
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import com.google.gerrit.extensions.client.ListChangesOption;
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import com.google.gerrit.extensions.common.ChangeInfo;
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import com.google.gerrit.extensions.common.ChangeInput;
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import com.google.gerrit.extensions.restapi.IdString;
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import com.google.gerrit.extensions.restapi.RestApiException;
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import com.google.gerrit.extensions.restapi.TopLevelResource;
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import com.google.gerrit.extensions.restapi.Url;
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import com.google.gerrit.reviewdb.client.Change;
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import com.google.gerrit.server.restapi.change.ChangesCollection;
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import com.google.gerrit.server.restapi.change.CreateChange;
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import com.google.gerrit.server.restapi.change.QueryChanges;
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import com.google.inject.Inject;
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import com.google.inject.Provider;
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import com.google.inject.Singleton;
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import java.util.List;
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@Singleton
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class ChangesImpl implements Changes {
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private final ChangesCollection changes;
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private final ChangeApiImpl.Factory api;
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private final CreateChange createChange;
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private final Provider<QueryChanges> queryProvider;
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@Inject
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ChangesImpl(
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ChangesCollection changes,
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ChangeApiImpl.Factory api,
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CreateChange createChange,
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Provider<QueryChanges> queryProvider) {
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this.changes = changes;
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this.api = api;
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this.createChange = createChange;
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this.queryProvider = queryProvider;
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}
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@Override
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public ChangeApi id(int id) throws RestApiException {
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return id(String.valueOf(id));
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}
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@Override
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public ChangeApi id(String project, String branch, String id) throws RestApiException {
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return id(
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Joiner.on('~')
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.join(ImmutableList.of(Url.encode(project), Url.encode(branch), Url.encode(id))));
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}
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@Override
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public ChangeApi id(String id) throws RestApiException {
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try {
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return api.create(changes.parse(TopLevelResource.INSTANCE, IdString.fromUrl(id)));
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} catch (Exception e) {
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throw asRestApiException("Cannot parse change", e);
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}
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}
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@Override
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public ChangeApi id(String project, int id) throws RestApiException {
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return id(
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Joiner.on('~').join(ImmutableList.of(Url.encode(project), Url.encode(String.valueOf(id)))));
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}
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@Override
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public ChangeApi create(ChangeInput in) throws RestApiException {
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try {
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ChangeInfo out = createChange.apply(TopLevelResource.INSTANCE, in).value();
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return api.create(changes.parse(new Change.Id(out._number)));
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} catch (Exception e) {
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throw asRestApiException("Cannot create change", e);
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}
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}
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@Override
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public QueryRequest query() {
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return new QueryRequest() {
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@Override
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public List<ChangeInfo> get() throws RestApiException {
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return ChangesImpl.this.get(this);
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}
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};
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}
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@Override
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public QueryRequest query(String query) {
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return query().withQuery(query);
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}
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private List<ChangeInfo> get(QueryRequest q) throws RestApiException {
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QueryChanges qc = queryProvider.get();
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if (q.getQuery() != null) {
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qc.addQuery(q.getQuery());
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}
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qc.setLimit(q.getLimit());
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qc.setStart(q.getStart());
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for (ListChangesOption option : q.getOptions()) {
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qc.addOption(option);
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}
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try {
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List<?> result = qc.apply(TopLevelResource.INSTANCE);
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if (result.isEmpty()) {
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return ImmutableList.of();
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}
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// Check type safety of result; the extension API should be safer than the
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// REST API in this case, since it's intended to be used in Java.
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Object first = requireNonNull(result.iterator().next());
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checkState(first instanceof ChangeInfo);
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@SuppressWarnings("unchecked")
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List<ChangeInfo> infos = (List<ChangeInfo>) result;
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return ImmutableList.copyOf(infos);
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} catch (Exception e) {
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throw asRestApiException("Cannot query changes", e);
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}
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}
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}
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