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Github: add paging class

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This commit is contained in:
Aleksey Pivovarov
2013-07-29 16:47:15 +04:00
parent a448f9f8b3
commit 101286dc75
1 changed files with 102 additions and 98 deletions
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plugins/github/src/org/jetbrains/plugins/github/api/GithubApiUtil.java
+102 -98
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@@ -36,6 +36,7 @@ import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.NoSuchElementException;
/**
* @author Kirill Likhodedov
@@ -76,34 +77,6 @@ public class GithubApiUtil {
return request(auth, path, null, HttpVerb.GET).getJsonElement();
}
@Nullable
private static ResponsePage getPagedRequest(@NotNull GithubAuthData auth, @NotNull String path) throws IOException {
return request(auth, path, null, HttpVerb.GET);
}
@Nullable
private static JsonArray getAllRequest(@NotNull GithubAuthData auth, @NotNull String path) throws IOException {
JsonArray ret = new JsonArray();
String next = path;
while (next != null) {
ResponsePage response = request(auth, next, null, HttpVerb.GET);
if (response.getJsonElement() == null) {
return null;
}
if (!response.getJsonElement().isJsonArray()) {
throw new JsonException("Wrong json type: expected JsonArray");
}
next = response.getNextPage();
ret.addAll(response.getJsonElement().getAsJsonArray());
}
return ret;
}
@NotNull
private static ResponsePage request(@NotNull GithubAuthData auth,
@NotNull String path,
@@ -295,8 +268,8 @@ public class GithubApiUtil {
}
}
/*
* Github API
/*
* Json API
*/
static <Raw extends DataConstructor, Result> Result createDataFromRaw(@NotNull Raw rawObject, @NotNull Class<Result> resultClass)
@@ -309,29 +282,58 @@ public class GithubApiUtil {
}
}
@NotNull
public static Collection<String> getTokenScopes(@NotNull GithubAuthData auth) throws IOException {
HttpMethod method = null;
try {
method = doREST(auth, "", null, HttpVerb.HEAD);
static class PagedRequest<T, R extends DataConstructor> {
@NotNull private GithubAuthData myAuth;
@Nullable private String myNextPage;
@NotNull private Class<T> myResult;
@NotNull private Class<R[]> myRawArray;
checkStatusCode(method);
Header header = method.getResponseHeader("X-OAuth-Scopes");
if (header == null) {
throw new HttpException("No scopes header");
}
Collection<String> scopes = new ArrayList<String>();
for (HeaderElement elem : header.getElements()) {
scopes.add(elem.getName());
}
return scopes;
public PagedRequest(@NotNull GithubAuthData auth, @NotNull String path, @NotNull Class<T> result, @NotNull Class<R[]> rawArray) {
myAuth = auth;
myNextPage = path;
myResult = result;
myRawArray = rawArray;
}
finally {
if (method != null) {
method.releaseConnection();
@NotNull
public List<T> next() throws IOException {
if (myNextPage == null) {
throw new NoSuchElementException();
}
String page = myNextPage;
myNextPage = null;
ResponsePage response = request(myAuth, page, null, HttpVerb.GET);
if (response.getJsonElement() == null) {
throw new HttpException("Empty response");
}
if (!response.getJsonElement().isJsonArray()) {
throw new JsonException("Wrong json type: expected JsonArray");
}
myNextPage = response.getNextPage();
List<T> result = new ArrayList<T>();
for (R raw : fromJson(response.getJsonElement().getAsJsonArray(), myRawArray)) {
result.add(createDataFromRaw(raw, myResult));
}
return result;
}
public boolean hasNext() {
return myNextPage != null;
}
@NotNull
public List<T> getAll() throws IOException {
List<T> result = new ArrayList<T>();
while (hasNext()) {
result.addAll(next());
}
return result;
}
}
@@ -359,6 +361,36 @@ public class GithubApiUtil {
return res;
}
/*
* Github API
*/
@NotNull
public static Collection<String> getTokenScopes(@NotNull GithubAuthData auth) throws IOException {
HttpMethod method = null;
try {
method = doREST(auth, "", null, HttpVerb.HEAD);
checkStatusCode(method);
Header header = method.getResponseHeader("X-OAuth-Scopes");
if (header == null) {
throw new HttpException("No scopes header");
}
Collection<String> scopes = new ArrayList<String>();
for (HeaderElement elem : header.getElements()) {
scopes.add(elem.getName());
}
return scopes;
}
finally {
if (method != null) {
method.releaseConnection();
}
}
}
@NotNull
public static String getScopedToken(@NotNull GithubAuthData auth, @NotNull Collection<String> scopes, @Nullable String note)
throws IOException {
@@ -389,16 +421,13 @@ public class GithubApiUtil {
@NotNull
private static List<GithubRepo> doGetAvailableRepos(@NotNull GithubAuthData auth, @Nullable String user) throws IOException {
String request = user == null ? "/user/repos" : "/users/" + user + "/repos?per_page=100";
JsonElement result = getAllRequest(auth, request);
String path = user == null ? "/user/repos" : "/users/" + user + "/repos?per_page=100";
GithubRepoRaw[] rawRepos = fromJson(result, GithubRepoRaw[].class);
List<GithubRepo> repos = new ArrayList<GithubRepo>();
for (GithubRepoRaw raw : rawRepos) {
repos.add(createDataFromRaw(raw, GithubRepo.class));
}
return repos;
PagedRequest<GithubRepo, GithubRepoRaw> request =
new PagedRequest<GithubRepo, GithubRepoRaw>(auth, path, GithubRepo.class, GithubRepoRaw[].class);
return request.getAll();
}
@NotNull
@@ -464,15 +493,10 @@ public class GithubApiUtil {
path = "/repos/" + user + "/" + repo + "/issues?per_page=100";
}
JsonElement result = getAllRequest(auth, path);
PagedRequest<GithubIssue, GithubIssueRaw> request =
new PagedRequest<GithubIssue, GithubIssueRaw>(auth, path, GithubIssue.class, GithubIssueRaw[].class);
GithubIssueRaw[] rawIssues = fromJson(result, GithubIssueRaw[].class);
List<GithubIssue> issues = new ArrayList<GithubIssue>();
for (GithubIssueRaw raw : rawIssues) {
issues.add(createDataFromRaw(raw, GithubIssue.class));
}
return issues;
return request.getAll();
}
@NotNull
@@ -490,15 +514,10 @@ public class GithubApiUtil {
throws IOException {
String path = "/repos/" + user + "/" + repo + "/issues/" + id + "/comments?per_page=100";
JsonElement result = getAllRequest(auth, path);
PagedRequest<GithubIssueComment, GithubIssueCommentRaw> request =
new PagedRequest<GithubIssueComment, GithubIssueCommentRaw>(auth, path, GithubIssueComment.class, GithubIssueCommentRaw[].class);
GithubIssueCommentRaw[] rawComments = fromJson(result, GithubIssueCommentRaw[].class);
List<GithubIssueComment> comments = new ArrayList<GithubIssueComment>();
for (GithubIssueCommentRaw raw : rawComments) {
comments.add(createDataFromRaw(raw, GithubIssueComment.class));
}
return comments;
return request.getAll();
}
@NotNull
@@ -524,15 +543,10 @@ public class GithubApiUtil {
throws IOException {
String path = "/repos/" + user + "/" + repo + "/pulls?per_page=100";
JsonElement result = getAllRequest(auth, path);
PagedRequest<GithubPullRequest, GithubPullRequestRaw> request =
new PagedRequest<GithubPullRequest, GithubPullRequestRaw>(auth, path, GithubPullRequest.class, GithubPullRequestRaw[].class);
GithubPullRequestRaw[] rawRequests = fromJson(result, GithubPullRequestRaw[].class);
List<GithubPullRequest> requests = new ArrayList<GithubPullRequest>();
for (GithubPullRequestRaw raw : rawRequests) {
requests.add(createDataFromRaw(raw, GithubPullRequest.class));
}
return requests;
return request.getAll();
}
@NotNull
@@ -540,15 +554,10 @@ public class GithubApiUtil {
throws IOException {
String path = "/repos/" + user + "/" + repo + "/pulls/" + id + "/commits?per_page=100";
JsonElement result = getAllRequest(auth, path);
PagedRequest<GithubCommit, GithubCommitRaw> request =
new PagedRequest<GithubCommit, GithubCommitRaw>(auth, path, GithubCommit.class, GithubCommitRaw[].class);
GithubCommitRaw[] rawCommits = fromJson(result, GithubCommitRaw[].class);
List<GithubCommit> commits = new ArrayList<GithubCommit>();
for (GithubCommitRaw raw : rawCommits) {
commits.add(createDataFromRaw(raw, GithubCommit.class));
}
return commits;
return request.getAll();
}
@NotNull
@@ -556,14 +565,9 @@ public class GithubApiUtil {
throws IOException {
String path = "/repos/" + user + "/" + repo + "/pulls/" + id + "/files?per_page=100";
JsonElement result = getAllRequest(auth, path);
PagedRequest<GithubFile, GithubFileRaw> request =
new PagedRequest<GithubFile, GithubFileRaw>(auth, path, GithubFile.class, GithubFileRaw[].class);
GithubFileRaw[] rawFiles = fromJson(result, GithubFileRaw[].class);
List<GithubFile> files = new ArrayList<GithubFile>();
for (GithubFileRaw raw : rawFiles) {
files.add(createDataFromRaw(raw, GithubFile.class));
}
return files;
return request.getAll();
}
}