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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.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.FileWebLink;
import com.google.gerrit.extensions.webui.PatchSetWebLink;
import com.google.gerrit.extensions.webui.ProjectWebLink;
import com.google.gerrit.extensions.webui.WebLink;
import com.google.gerrit.reviewdb.client.Project;
import com.google.inject.Inject;
import com.google.inject.Singleton;
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<WebLinkInfo> INVALID_WEBLINK =
new Predicate<WebLinkInfo>() {
@Override
public boolean apply(WebLinkInfo link) {
if (link == null){
return false;
} else if (Strings.isNullOrEmpty(link.name)
|| Strings.isNullOrEmpty(link.url)) {
log.warn(String.format("%s is missing name and/or url",
link.getClass().getName()));
return false;
}
return true;
}
};
private final DynamicSet<PatchSetWebLink> patchSetLinks;
private final DynamicSet<FileWebLink> fileLinks;
private final DynamicSet<DiffWebLink> diffLinks;
private final DynamicSet<ProjectWebLink> projectLinks;
private final DynamicSet<BranchWebLink> branchLinks;
@Inject
public WebLinks(DynamicSet<PatchSetWebLink> patchSetLinks,
DynamicSet<FileWebLink> fileLinks,
DynamicSet<DiffWebLink> diffLinks,
DynamicSet<ProjectWebLink> projectLinks,
DynamicSet<BranchWebLink> branchLinks) {
this.patchSetLinks = patchSetLinks;
this.fileLinks = fileLinks;
this.diffLinks = diffLinks;
this.projectLinks = projectLinks;
this.branchLinks = branchLinks;
}
/**
*
* @param project Project name.
* @param commit SHA1 of commit.
* @return Links for patch sets.
*/
public FluentIterable<WebLinkInfo> getPatchSetLinks(final Project.NameKey project,
final String commit) {
return filterLinks(patchSetLinks, new Function<WebLink, WebLinkInfo>() {
@Override
public WebLinkInfo apply(WebLink webLink) {
return ((PatchSetWebLink)webLink).getPatchSetWebLink(project.get(), commit);
}
});
}
/**
*
* @param project Project name.
* @param revision SHA1 of revision.
* @param file File name.
* @return Links for files.
*/
public FluentIterable<WebLinkInfo> getFileLinks(final String project, final String revision,
final String file) {
return filterLinks(fileLinks, new Function<WebLink, WebLinkInfo>() {
@Override
public WebLinkInfo apply(WebLink webLink) {
return ((FileWebLink)webLink).getFileWebLink(project, revision, file);
}
});
}
/**
*
* @param project Project name.
* @param patchSetIdA Patch set ID of side A, <code>null</code> 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 FluentIterable<DiffWebLinkInfo> 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) {
return FluentIterable
.from(diffLinks)
.transform(new Function<WebLink, DiffWebLinkInfo>() {
@Override
public DiffWebLinkInfo apply(WebLink webLink) {
return ((DiffWebLink) webLink).getDiffLink(project, changeId,
patchSetIdA, revisionA, fileA,
patchSetIdB, revisionB, fileB);
}
})
.filter(INVALID_WEBLINK);
}
/**
*
* @param project Project name.
* @return Links for projects.
*/
public FluentIterable<WebLinkInfo> getProjectLinks(final String project) {
return filterLinks(projectLinks, new Function<WebLink, WebLinkInfo>() {
@Override
public WebLinkInfo apply(WebLink webLink) {
return ((ProjectWebLink)webLink).getProjectWeblink(project);
}
});
}
/**
*
* @param project Project name
* @param branch Branch name
* @return Links for branches.
*/
public FluentIterable<WebLinkInfo> getBranchLinks(final String project, final String branch) {
return filterLinks(branchLinks, new Function<WebLink, WebLinkInfo>() {
@Override
public WebLinkInfo apply(WebLink webLink) {
return ((BranchWebLink)webLink).getBranchWebLink(project, branch);
}
});
}
private FluentIterable<WebLinkInfo> filterLinks(DynamicSet<? extends WebLink> links,
Function<WebLink, WebLinkInfo> transformer) {
return FluentIterable
.from(links)
.transform(transformer)
.filter(INVALID_WEBLINK);
}
}
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