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// 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;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.base.Strings;
import com.google.common.collect.FluentIterable;
import com.google.gerrit.common.data.WebLinkInfoCommon;
import com.google.gerrit.extensions.common.DiffWebLinkInfo;
import com.google.gerrit.extensions.common.WebLinkInfo;
import com.google.gerrit.extensions.registration.DynamicSet;
import com.google.gerrit.extensions.webui.BranchWebLink;
import com.google.gerrit.extensions.webui.DiffWebLink;
import com.google.gerrit.extensions.webui.FileHistoryWebLink;
import com.google.gerrit.extensions.webui.FileWebLink;
import com.google.gerrit.extensions.webui.ParentWebLink;
import com.google.gerrit.extensions.webui.PatchSetWebLink;
import com.google.gerrit.extensions.webui.ProjectWebLink;
import com.google.gerrit.extensions.webui.TagWebLink;
import com.google.gerrit.extensions.webui.WebLink;
import com.google.gerrit.reviewdb.client.Patch;
import com.google.gerrit.reviewdb.client.Project;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.Collections;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@Singleton
public class WebLinks {
private static final Logger log = LoggerFactory.getLogger(WebLinks.class);
private static final Predicate INVALID_WEBLINK =
link -> {
if (link == null) {
return false;
} else if (Strings.isNullOrEmpty(link.name) || Strings.isNullOrEmpty(link.url)) {
log.warn("{} is missing name and/or url", link.getClass().getName());
return false;
}
return true;
};
private static final Predicate INVALID_WEBLINK_COMMON =
link -> {
if (link == null) {
return false;
} else if (Strings.isNullOrEmpty(link.name) || Strings.isNullOrEmpty(link.url)) {
log.warn("{} is missing name and/or url", link.getClass().getName());
return false;
}
return true;
};
private final DynamicSet patchSetLinks;
private final DynamicSet parentLinks;
private final DynamicSet fileLinks;
private final DynamicSet fileHistoryLinks;
private final DynamicSet diffLinks;
private final DynamicSet projectLinks;
private final DynamicSet branchLinks;
private final DynamicSet tagLinks;
@Inject
public WebLinks(
DynamicSet patchSetLinks,
DynamicSet parentLinks,
DynamicSet fileLinks,
DynamicSet fileLogLinks,
DynamicSet diffLinks,
DynamicSet projectLinks,
DynamicSet branchLinks,
DynamicSet tagLinks) {
this.patchSetLinks = patchSetLinks;
this.parentLinks = parentLinks;
this.fileLinks = fileLinks;
this.fileHistoryLinks = fileLogLinks;
this.diffLinks = diffLinks;
this.projectLinks = projectLinks;
this.branchLinks = branchLinks;
this.tagLinks = tagLinks;
}
/**
* @param project Project name.
* @param commit SHA1 of commit.
* @return Links for patch sets.
*/
public List getPatchSetLinks(Project.NameKey project, String commit) {
return filterLinks(patchSetLinks, webLink -> webLink.getPatchSetWebLink(project.get(), commit));
}
/**
* @param project Project name.
* @param revision SHA1 of the parent revision.
* @return Links for patch sets.
*/
public List getParentLinks(Project.NameKey project, String revision) {
return filterLinks(parentLinks, webLink -> webLink.getParentWebLink(project.get(), revision));
}
/**
* @param project Project name.
* @param revision SHA1 of revision.
* @param file File name.
* @return Links for files.
*/
public List getFileLinks(String project, String revision, String file) {
return Patch.isMagic(file)
? Collections.emptyList()
: filterLinks(fileLinks, webLink -> webLink.getFileWebLink(project, revision, file));
}
/**
* @param project Project name.
* @param revision SHA1 of revision.
* @param file File name.
* @return Links for file history
*/
public List getFileHistoryLinks(String project, String revision, String file) {
if (Patch.isMagic(file)) {
return Collections.emptyList();
}
return FluentIterable.from(fileHistoryLinks)
.transform(
webLink -> {
WebLinkInfo info = webLink.getFileHistoryWebLink(project, revision, file);
if (info == null) {
return null;
}
WebLinkInfoCommon commonInfo = new WebLinkInfoCommon();
commonInfo.name = info.name;
commonInfo.imageUrl = info.imageUrl;
commonInfo.url = info.url;
commonInfo.target = info.target;
return commonInfo;
})
.filter(INVALID_WEBLINK_COMMON)
.toList();
}
/**
* @param project Project name.
* @param patchSetIdA Patch set ID of side A, null if no base patch set was selected.
* @param revisionA SHA1 of revision of side A.
* @param fileA File name of side A.
* @param patchSetIdB Patch set ID of side B.
* @param revisionB SHA1 of revision of side B.
* @param fileB File name of side B.
* @return Links for file diffs.
*/
public List getDiffLinks(
final String project,
final int changeId,
final Integer patchSetIdA,
final String revisionA,
final String fileA,
final int patchSetIdB,
final String revisionB,
final String fileB) {
if (Patch.isMagic(fileA) || Patch.isMagic(fileB)) {
return Collections.emptyList();
}
return FluentIterable.from(diffLinks)
.transform(
webLink ->
webLink.getDiffLink(
project,
changeId,
patchSetIdA,
revisionA,
fileA,
patchSetIdB,
revisionB,
fileB))
.filter(INVALID_WEBLINK)
.toList();
}
/**
* @param project Project name.
* @return Links for projects.
*/
public List getProjectLinks(final String project) {
return filterLinks(projectLinks, webLink -> webLink.getProjectWeblink(project));
}
/**
* @param project Project name
* @param branch Branch name
* @return Links for branches.
*/
public List getBranchLinks(final String project, final String branch) {
return filterLinks(branchLinks, webLink -> webLink.getBranchWebLink(project, branch));
}
/**
* @param project Project name
* @param tag Tag name
* @return Links for tags.
*/
public List getTagLinks(String project, String tag) {
return filterLinks(tagLinks, webLink -> webLink.getTagWebLink(project, tag));
}
private List filterLinks(
DynamicSet links, Function transformer) {
return FluentIterable.from(links).transform(transformer).filter(INVALID_WEBLINK).toList();
}
}
