{"action":"created","comment":{"url":"https://api.github.com/repos/caskdata/cdap/pulls/comments/74885372","id":74885372,"diff_hunk":"@@ -0,0 +1,76 @@\n+/*\n+ * Copyright © 2016 Cask Data, Inc.\n+ *\n+ * Licensed under the Apache License, Version 2.0 (the \"License\"); you may not\n+ * use this file except in compliance with the License. You may obtain a copy of\n+ * the License at\n+ *\n+ * http://www.apache.org/licenses/LICENSE-2.0\n+ *\n+ * Unless required by applicable law or agreed to in writing, software\n+ * distributed under the License is distributed on an \"AS IS\" BASIS, WITHOUT\n+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the\n+ * License for the specific language governing permissions and limitations under\n+ * the License.\n+ */\n+package co.cask.cdap.app.preview;\n+\n+import co.cask.cdap.api.metrics.MetricTimeSeries;\n+import co.cask.cdap.common.NotFoundException;\n+import co.cask.cdap.proto.id.NamespaceId;\n+import co.cask.cdap.proto.id.PreviewId;\n+import org.apache.twill.api.logging.LogEntry;\n+\n+import java.util.Collection;\n+import java.util.List;\n+import java.util.Map;\n+\n+/**\n+ * Interface used to start preview and also retrieve the information associated with a preview.\n+ */\n+public interface PreviewManager {\n+\n+  /**\n+   * Start the preview of an application config provided as an input.\n+   * @param namespaceId the id of \n+   * @param config the config for the preview\n+   * @return the unique {@link PreviewId} generated for the preview run\n+   */\n+  PreviewId start(NamespaceId namespaceId, String config) throws Exception;\n+\n+  /**\n+   * Get the status for the specified {@link PreviewId}.\n+   * @param previewId the id of the preview for which status is to be returned\n+   * @return the status associated with the preview\n+   */\n+  PreviewStatus getStatus(PreviewId previewId) throws NotFoundException;\n+\n+  /**\n+   * Get the data associated with the preview.\n+   * @param previewId the id associated with the preview\n+   * @return the {@link Map} of logger name to properties associated with the logger for a given preview\n+   */\n+  Map<String, Map<String, List<Object>>> getData(PreviewId previewId);\n+\n+  /**\n+   * Get the data associated with the specified logger name of the preview.\n+   * @param previewId id of the preview\n+   * @param loggerName the name of the logger for which data is to be returned\n+   * @return the {@link Map} of property name to property value associated with the given logger for a given preview\n+   */\n+  Map<String, List<Object>> getData(PreviewId previewId, String loggerName);","path":"cdap-app-fabric/src/main/java/co/cask/cdap/app/preview/PreviewManager.java","position":61,"original_position":61,"commit_id":"b29b8fc45852bc73e4320f8501959df5030f6340","original_commit_id":"b29b8fc45852bc73e4320f8501959df5030f6340","user":{"login":"chtyim","id":885032,"avatar_url":"https://avatars.githubusercontent.com/u/885032?v=3","gravatar_id":"","url":"https://api.github.com/users/chtyim","html_url":"https://github.com/chtyim","followers_url":"https://api.github.com/users/chtyim/followers","following_url":"https://api.github.com/users/chtyim/following{/other_user}","gists_url":"https://api.github.com/users/chtyim/gists{/gist_id}","starred_url":"https://api.github.com/users/chtyim/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/chtyim/subscriptions","organizations_url":"https://api.github.com/users/chtyim/orgs","repos_url":"https://api.github.com/users/chtyim/repos","events_url":"https://api.github.com/users/chtyim/events{/privacy}","received_events_url":"https://api.github.com/users/chtyim/received_events","type":"User","site_admin":false},"body":"Why need this method? Seems like a overlap with the one above.","created_at":"2016-08-16T07:11:24Z","updated_at":"2016-08-16T07:11:24Z","html_url":"https://github.com/caskdata/cdap/pull/6423#discussion_r74885372","pull_request_url":"https://api.github.com/repos/caskdata/cdap/pulls/6423","_links":{"self":{"href":"https://api.github.com/repos/caskdata/cdap/pulls/comments/74885372"},"html":{"href":"https://github.com/caskdata/cdap/pull/6423#discussion_r74885372"},"pull_request":{"href":"https://api.github.com/repos/caskdata/cdap/pulls/6423"}}},"pull_request":{"url":"https://api.github.com/repos/caskdata/cdap/pulls/6423","id":81203413,"html_url":"https://github.com/caskdata/cdap/pull/6423","diff_url":"https://github.com/caskdata/cdap/pull/6423.diff","patch_url":"https://github.com/caskdata/cdap/pull/6423.patch","issue_url":"https://api.github.com/repos/caskdata/cdap/issues/6423","number":6423,"state":"open","locked":false,"title":"Feature/preview service implementation","user":{"login":"gsps1","id":1328150,"avatar_url":"https://avatars.githubusercontent.com/u/1328150?v=3","gravatar_id":"","url":"https://api.github.com/users/gsps1","html_url":"https://github.com/gsps1","followers_url":"https://api.github.com/users/gsps1/followers","following_url":"https://api.github.com/users/gsps1/following{/other_user}","gists_url":"https://api.github.com/users/gsps1/gists{/gist_id}","starred_url":"https://api.github.com/users/gsps1/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/gsps1/subscriptions","organizations_url":"https://api.github.com/users/gsps1/orgs","repos_url":"https://api.github.com/users/gsps1/repos","events_url":"https://api.github.com/users/gsps1/events{/privacy}","received_events_url":"https://api.github.com/users/gsps1/received_events","type":"User","site_admin":false},"body":"Reopening this PR https://github.com/caskdata/cdap/pull/5929\r\n\r\nwith fixes for open code review comments and new guice bindings added. \r\n\r\nBuild: 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