/**
* Retrieve a specific post from a blog by sending a GET request to the posts resource URI
*
* @param blogId The blog id
* @param postId The post id
* @return the post in the blog
*/
private Post retrievePostById(String blogId, String postId) {
Post bloggerPost = null;
try {
String json =
doGetRestBloggerApi(
"https://www.googleapis.com/blogger/v3/blogs/" + blogId + "/posts/" + postId,
bloggerAccessToken);
Gson gson = new Gson();
JsonElement element = gson.fromJson(json, JsonElement.class);
JsonObject jobj = element.getAsJsonObject();
String kind = jobj.get("kind").getAsString();
String id = jobj.get("id").getAsString();
String published = jobj.get("published").getAsString();
String updated = jobj.get("updated").getAsString();
String url = jobj.get("url").getAsString();
String selfLink = jobj.get("selfLink").getAsString();
String title = jobj.get("title").getAsString();
String content = jobj.get("content").getAsString();
bloggerPost = new Post(id, url, selfLink, title, content);
bloggerPost.setKind(kind);
bloggerPost.setPublished(published);
bloggerPost.setUpdated(updated);
} catch (Exception e) {
return null;
}
return bloggerPost;
}
/**
* Update a blog post by sending a PUT request to the post collection URI with a post JSON body
*
* @param blogId The blog id
* @param post The post to be updated
* @param newPostTitle The new title of the post
* @param newPostContent The new content of the post
* @return the url of the updated post
* @throws Exception
*/
private String updatePost(String blogId, Post post, String newPostTitle, String newPostContent)
throws Exception {
String putUrl = null;
Gson gson = new Gson();
JsonObject objPost = new JsonObject();
objPost.addProperty("kind", "blogger#post");
objPost.addProperty("id", post.getId());
JsonObject blog = new JsonObject();
blog.addProperty("id", blogId);
objPost.add("blog", blog);
objPost.addProperty("title", newPostTitle);
objPost.addProperty("content", newPostContent);
objPost.addProperty("url", post.getUrl());
objPost.addProperty("selfLink", post.getSelfLink());
String jsonPost = gson.toJson(objPost);
try {
String jsonResult =
doPutRestBloggerApi(
"https://www.googleapis.com/blogger/v3/blogs/" + blogId + "/posts/" + post.getId(),
bloggerAccessToken,
jsonPost);
JsonElement element = gson.fromJson(jsonResult, JsonElement.class);
JsonObject jobj = element.getAsJsonObject();
// putUrl = jobj.get("url").getAsString();
putUrl = generateEditionUrl(blogId, post.getId());
} catch (Exception e) {
e.printStackTrace();
throw e;
}
return putUrl;
}
@Override
public Deploy redeploy(String baseUri, Deploy newDeploy) {
String bloggerUserid = retrieveBloggerUserId(bloggerAccessToken);
Blog blog = retrieveUserBlog(bloggerUserid, newDeploy.getCourse().getId());
// get the url of the blog entry
String entryUrl = newDeploy.getLiveDeployURL().toString();
String postId = getPostIdFromUrl(entryUrl);
Boolean wasPublic = true;
Post blogPost = retrievePostById(newDeploy.getCourse().getId(), postId);
if (blogPost == null) {
// make public the post just to be able to update it by using the blogger API
publishPost(newDeploy.getCourse().getId(), postId);
blogPost = retrievePostById(newDeploy.getCourse().getId(), postId);
wasPublic = false;
}
String newPostTitle = newDeploy.getName();
// generate the html content
String postContent = generateActivitiesHtml(newDeploy, "bloggerUser");
// generate the javascript content
String javascriptContent = generateJavascriptContent();
try {
String postUrl;
// if the post already exists, we update it
if (blogPost != null) {
postUrl =
updatePost(
blog.getId(),
blogPost,
blogPost.getTitle(),
javascriptContent
+ "<p>This is the result of the deployment from Glue-!PS</p><p>"
+ postContent
+ "</p>");
if (!wasPublic) {
// make private it again
revertPost(newDeploy.getCourse().getId(), postId);
}
} else {
// if not we have to create a new one
postUrl =
addPost(
blog.getId(),
newPostTitle,
javascriptContent
+ "<p>This is the result of the deployment from Glue-!PS</p><p>"
+ postContent
+ "</p>");
// make the new post private
revertPost(newDeploy.getCourse().getId(), postId);
}
newDeploy.setLiveDeployURL(new URL(postUrl));
return newDeploy;
} catch (MalformedURLException e) {
e.printStackTrace();
// If something went wrong, we set location=null in case it has already a url
newDeploy.setLiveDeployURL(null);
return newDeploy;
} catch (Exception e) {
// If something went wrong, we set location=null in case it has already a url
newDeploy.setLiveDeployURL(null);
return newDeploy;
}
}