Add support for PR reviews preview

src/main/java/org/kohsuke/github/GHPullRequest.java

@@ -25,8 +25,12 @@
 
 import java.io.IOException;
 import java.net.URL;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Date;
+import java.util.List;
+import javax.annotation.CheckForNull;
 
 /**
  * A pull request.
@@ -223,6 +227,27 @@ protected void wrapUp(GHPullRequestFileDetail[] page) {
         };
     }
 
+    /**
+     * Retrieves all the reviews associated to this pull request.
+     */
+    public PagedIterable<GHPullRequestReview> listReviews() {
+        return new PagedIterable<GHPullRequestReview>() {
+            public PagedIterator<GHPullRequestReview> _iterator(int pageSize) {
+                return new PagedIterator<GHPullRequestReview>(root.retrieve()
+                        .withPreview("application/vnd.github.black-cat-preview+json")
+                        .asIterator(String.format("%s/reviews", getApiRoute()),
+                        GHPullRequestReview[].class, pageSize)) {
+                    @Override
+                    protected void wrapUp(GHPullRequestReview[] page) {
+                        for (GHPullRequestReview r: page) {
+                            r.wrapUp(GHPullRequest.this);
+                        }
+                    }
+                };
+            }
+        };
+    }
+
     /**
      * Obtains all the review comments associated with this pull request.
      */
@@ -259,6 +284,34 @@ protected void wrapUp(GHPullRequestCommitDetail[] page) {
         };
     }
 
+    @Preview
+    @Deprecated
+    public GHPullRequestReview createReview(String body, @CheckForNull GHPullRequestReviewState event,
+                                            GHPullRequestReviewComment... comments)
+            throws IOException {
+        return createReview(body, event, Arrays.asList(comments));
+    }
+
+    @Preview
+    @Deprecated
+    public GHPullRequestReview createReview(String body, @CheckForNull GHPullRequestReviewState event,
+                                            List<GHPullRequestReviewComment> comments)
+            throws IOException {
+        if (event == null) {
+            event = GHPullRequestReviewState.PENDING;
+        }
+        List<DraftReviewComment> draftComments = new ArrayList<DraftReviewComment>(comments.size());
+        for (GHPullRequestReviewComment c : comments) {
+            draftComments.add(new DraftReviewComment(c.getBody(), c.getPath(), c.getPosition()));
+        }
+        return new Requester(root).method("POST")
+                .with("body", body)
+                //.with("event", event.name())
+                ._with("comments", draftComments)
+                .withPreview("application/vnd.github.black-cat-preview+json")
+                .to(getApiRoute() + "/reviews", GHPullRequestReview.class).wrapUp(this);
+    }
+
     public GHPullRequestReviewComment createReviewComment(String body, String sha, String path, int position) throws IOException {
         return new Requester(root).method("POST")
                 .with("body", body)
@@ -300,4 +353,28 @@ private void fetchIssue() throws IOException {
             fetchedIssueDetails = true;
         }
     }
+
+    private static class DraftReviewComment {
+        private String body;
+        private String path;
+        private int position;
+
+        public DraftReviewComment(String body, String path, int position) {
+            this.body = body;
+            this.path = path;
+            this.position = position;
+        }
+
+        public String getBody() {
+            return body;
+        }
+
+        public String getPath() {
+            return path;
+        }
+
+        public int getPosition() {
+            return position;
+        }
+    }
 }

src/main/java/org/kohsuke/github/GHPullRequestReview.java

@@ -0,0 +1,147 @@
+/*
+ * The MIT License
+ *
+ * Copyright (c) 2017, CloudBees, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package org.kohsuke.github;
+
+import java.io.IOException;
+import java.net.URL;
+
+/**
+ * Review to the pull request
+ *
+ * @see GHPullRequest#listReviews()
+ * @see GHPullRequest#createReview(String, GHPullRequestReviewState, GHPullRequestReviewComment...)
+ */
+public class GHPullRequestReview extends GHObject {
+    GHPullRequest owner;
+
+    private String body;
+    private GHUser user;
+    private String commit_id;
+    private GHPullRequestReviewState state;
+
+    /*package*/ GHPullRequestReview wrapUp(GHPullRequest owner) {
+        this.owner = owner;
+        return this;
+    }
+
+    /**
+     * Gets the pull request to which this review is associated.
+     */
+    public GHPullRequest getParent() {
+        return owner;
+    }
+
+    /**
+     * The comment itself.
+     */
+    public String getBody() {
+        return body;
+    }
+
+    /**
+     * Gets the user who posted this review.
+     */
+    public GHUser getUser() throws IOException {
+        return owner.root.getUser(user.getLogin());
+    }
+
+    public String getCommitId() {
+        return commit_id;
+    }
+
+    public GHPullRequestReviewState getState() {
+        return state;
+    }
+
+    @Override
+    public URL getHtmlUrl() {
+        return null;
+    }
+
+    protected String getApiRoute() {
+        return owner.getApiRoute()+"/reviews/"+id;
+    }
+
+    /**
+     * Updates the comment.
+     */
+    @Preview
+    @Deprecated
+    public void submit(String body, GHPullRequestReviewState event) throws IOException {
+        new Requester(owner.root).method("POST")
+                .with("body", body)
+                .with("event", event.action())
+                .withPreview("application/vnd.github.black-cat-preview+json")
+                .to(getApiRoute()+"/events",this);
+        this.body = body;
+        this.state = event;
+    }
+
+    /**
+     * Deletes this review.
+     */
+    @Preview
+    @Deprecated
+    public void delete() throws IOException {
+        new Requester(owner.root).method("DELETE")
+                .withPreview("application/vnd.github.black-cat-preview+json")
+                .to(getApiRoute());
+    }
+
+    /**
+     * Dismisses this review.
+     */
+    @Preview
+    @Deprecated
+    public void dismiss(String message) throws IOException {
+        new Requester(owner.root).method("PUT")
+                .with("message", message)
+                .withPreview("application/vnd.github.black-cat-preview+json")
+                .to(getApiRoute()+"/dismissals");
+        state = GHPullRequestReviewState.DISMISSED;
+    }
+
+    /**
+     * Obtains all the review comments associated with this pull request review.
+     */
+    @Preview
+    @Deprecated
+    public PagedIterable<GHPullRequestReviewComment> listReviewComments() throws IOException {
+        return new PagedIterable<GHPullRequestReviewComment>() {
+            public PagedIterator<GHPullRequestReviewComment> _iterator(int pageSize) {
+                return new PagedIterator<GHPullRequestReviewComment>(
+                        owner.root.retrieve()
+                                .withPreview("application/vnd.github.black-cat-preview+json")
+                                .asIterator(getApiRoute() + "/comments",
+                                GHPullRequestReviewComment[].class, pageSize)) {
+                    protected void wrapUp(GHPullRequestReviewComment[] page) {
+                        for (GHPullRequestReviewComment c : page)
+                            c.wrapUp(owner);
+                    }
+                };
+            }
+        };
+    }
+
+}

src/main/java/org/kohsuke/github/GHPullRequestReviewComment.java

@@ -44,6 +44,14 @@ public class GHPullRequestReviewComment extends GHObject implements Reactable {
     private int position;
     private int originalPosition;
 
+    public static GHPullRequestReviewComment draft(String body, String path, int position) {
+        GHPullRequestReviewComment result = new GHPullRequestReviewComment();
+        result.body = body;
+        result.path = path;
+        result.position = position;
+        return result;
+    }
+
     /*package*/ GHPullRequestReviewComment wrapUp(GHPullRequest owner) {
         this.owner = owner;
         return this;

src/main/java/org/kohsuke/github/GHPullRequestReviewState.java

@@ -0,0 +1,19 @@
+package org.kohsuke.github;
+
+public enum GHPullRequestReviewState {
+    PENDING(null),
+    APPROVED("APPROVE"),
+    REQUEST_CHANGES("REQUEST_CHANGES"),
+    COMMENTED("COMMENT"),
+    DISMISSED(null);
+
+    private final String _action;
+
+    GHPullRequestReviewState(String action) {
+        _action = action;
+    }
+
+    public String action() {
+        return _action;
+    }
+}

src/test/java/org/kohsuke/github/AbstractGitHubApiTestBase.java

@@ -1,5 +1,8 @@
 package org.kohsuke.github;
 
+import java.io.FileInputStream;
+import java.util.Properties;
+import org.apache.commons.io.IOUtils;
 import org.junit.Assert;
 import org.junit.Assume;
 import org.junit.Before;
@@ -19,9 +22,17 @@ public abstract class AbstractGitHubApiTestBase extends Assert {
     public void setUp() throws Exception {
         File f = new File(System.getProperty("user.home"), ".github.kohsuke2");
         if (f.exists()) {
+            Properties props = new Properties();
+            FileInputStream in = null;
+            try {
+                in = new FileInputStream(f);
+                props.load(in);
+            } finally {
+                IOUtils.closeQuietly(in);
+            }
             // use the non-standard credential preferentially, so that developers of this library do not have
             // to clutter their event stream.
-            gitHub = GitHubBuilder.fromPropertyFile(f.getPath()).withRateLimitHandler(RateLimitHandler.FAIL).build();
+            gitHub = GitHubBuilder.fromProperties(props).withRateLimitHandler(RateLimitHandler.FAIL).build();
         } else {
             gitHub = GitHubBuilder.fromCredentials().withRateLimitHandler(RateLimitHandler.FAIL).build();
         }

src/test/java/org/kohsuke/github/PullRequestTest.java

@@ -7,6 +7,9 @@
 import java.util.Collection;
 import java.util.List;
 
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.CoreMatchers.notNullValue;
+
 /**
  * @author Kohsuke Kawaguchi
  */
@@ -26,6 +29,33 @@ public void createPullRequestComment() throws Exception {
         p.comment("Some comment");
     }
 
+    @Test 
+    public void testPullRequestReviews() throws Exception {
+        String name = rnd.next();
+        GHPullRequest p = getRepository().createPullRequest(name, "stable", "master", "## test");
+        GHPullRequestReview draftReview = p.createReview("Some draft review", null,
+                GHPullRequestReviewComment.draft("Some niggle", "changelog.html", 1)
+        );
+        assertThat(draftReview.getState(), is(GHPullRequestReviewState.PENDING));
+        assertThat(draftReview.getBody(), is("Some draft review"));
+        assertThat(draftReview.getCommitId(), notNullValue());
+        List<GHPullRequestReview> reviews = p.listReviews().asList();
+        assertThat(reviews.size(), is(1));
+        GHPullRequestReview review = reviews.get(0);
+        assertThat(review.getState(), is(GHPullRequestReviewState.PENDING));
+        assertThat(review.getBody(), is("Some draft review"));
+        assertThat(review.getCommitId(), notNullValue());
+        review.submit("Some review comment", GHPullRequestReviewState.COMMENTED);
+        List<GHPullRequestReviewComment> comments = review.listReviewComments().asList();
+        assertEquals(1, comments.size());
+        GHPullRequestReviewComment comment = comments.get(0);
+        assertEquals("Some niggle", comment.getBody());
+        review = p.createReview("Some new review", null,
+                GHPullRequestReviewComment.draft("Some niggle", "changelog.html", 1)
+        );
+        review.delete();
+    }
+
     @Test
     public void testPullRequestReviewComments() throws Exception {
         String name = rnd.next();