feat(webhook): Add/Remove version webhook

https://zanata.atlassian.net/browse/ZNTA-1166

functional-test/src/main/java/org/zanata/page/projects/projectsettings/ProjectWebHooksTab.java

@@ -42,7 +42,7 @@
 public class ProjectWebHooksTab extends ProjectBasePage {
 
     private By webHooksForm = By.id("settings-webhooks-form");
-    private By saveWebhookButton = By.id("add-webhook-button");
+    private By saveWebhookButton = By.id("addWebhookBtn");
     private By urlInputField = By.id("payloadUrlInput");
     private By secretInputField = By.id("secretInput");
 

zanata-model/src/main/java/org/zanata/model/HProject.java

@@ -152,7 +152,8 @@ public class HProject extends SlugEntityBase implements Serializable,
     @Column(name = "alias", nullable = false)
     private Map<LocaleId, String> localeAliases = Maps.newHashMap();
 
-    @OneToMany(mappedBy = "project", cascade = CascadeType.ALL)
+    @OneToMany(cascade = CascadeType.ALL, mappedBy = "project",
+        orphanRemoval = true)
     private List<WebHook> webHooks = Lists.newArrayList();
 
     @Enumerated(EnumType.STRING)

zanata-model/src/main/java/org/zanata/model/WebHook.java

@@ -22,26 +22,30 @@
 package org.zanata.model;
 
 import java.io.Serializable;
+import java.util.Set;
 
+import javax.persistence.CascadeType;
 import javax.persistence.Column;
+import javax.persistence.ElementCollection;
 import javax.persistence.Entity;
+import javax.persistence.EnumType;
+import javax.persistence.Enumerated;
 import javax.persistence.GeneratedValue;
 import javax.persistence.GenerationType;
 import javax.persistence.Id;
 import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
 import javax.persistence.ManyToOne;
+import javax.persistence.Transient;
 import javax.validation.constraints.Size;
 
+import com.google.common.collect.Sets;
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 
-import org.hibernate.annotations.Type;
-import org.hibernate.annotations.TypeDef;
-import org.hibernate.annotations.TypeDefs;
 import org.zanata.model.type.WebhookType;
-import org.zanata.model.type.WebhookTypeType;
 import org.zanata.model.validator.Url;
 
 /**
@@ -51,9 +55,6 @@
 @Getter
 @Setter(AccessLevel.PRIVATE)
 @NoArgsConstructor
-@TypeDefs({
-    @TypeDef(name = "webhookType", typeClass = WebhookTypeType.class)
-})
 public class WebHook implements Serializable {
 
     private Long id;
@@ -63,7 +64,7 @@ public class WebHook implements Serializable {
     @Url
     private String url;
 
-    private WebhookType webhookType;
+    private Set<WebhookType> types = Sets.newHashSet();
 
     /**
      * Secret key used to generate webhook header in hmac-sha1 encryption.
@@ -72,10 +73,11 @@ public class WebHook implements Serializable {
     @Column(nullable = true)
     private String secret;
 
-    public WebHook(HProject project, String url, WebhookType webhookType, String secret) {
+    public WebHook(HProject project, String url, Set<WebhookType> types,
+        String secret) {
         this.project = project;
         this.url = url;
-        this.webhookType = webhookType;
+        this.types = types;
         this.secret = secret;
     }
 
@@ -85,15 +87,32 @@ public Long getId() {
         return id;
     }
 
-    @ManyToOne
+    @ManyToOne(cascade = { CascadeType.MERGE, CascadeType.PERSIST,
+            CascadeType.REFRESH })
     @JoinColumn(name = "projectId", nullable = false)
     public HProject getProject() {
         return project;
     }
 
-    @Type(type = "webhookType")
-    public WebhookType getWebhookType() {
-        return webhookType;
+    @ElementCollection
+    @Enumerated(EnumType.STRING)
+    @JoinTable(name = "WebHook_WebHookType",
+        joinColumns = @JoinColumn(name = "webhookId"))
+    @Column(name = "type", nullable = false)
+    public Set<WebhookType> getTypes() {
+        return types;
     }
 
+    @Transient
+    public void update(String url, Set<WebhookType> newTypes, String secret) {
+        this.url = url;
+        this.secret = secret;
+        this.types.addAll(newTypes);
+        Set<WebhookType> currentTypes = Sets.newHashSet(this.types);
+        for (WebhookType type: currentTypes) {
+            if (!newTypes.contains(type)) {
+                this.types.remove(type);
+            }
+        }
+    }
 }

zanata-model/src/main/java/org/zanata/model/type/WebhookType.java

@@ -1,11 +1,25 @@
 package org.zanata.model.type;
 
+import lombok.Getter;
+
+import java.io.Serializable;
+
 /**
  * Type of Webhook event. See {@link org.zanata.model.WebHook} for usage.
  *
  * @author Alex Eng <a href="mailto:aeng@redhat.com">aeng@redhat.com</a>
  */
-public enum WebhookType {
-    DocumentMilestoneEvent,
-    DocumentStatsEvent;
+public enum WebhookType implements Serializable {
+    DocumentMilestoneEvent("Translation milestone"),
+    DocumentStatsEvent("Translation update"),
+    VersionChangedEvent("Project version"),
+    ProjectMaintainerChangedEvent("Project maintainer update"),
+    SourceDocumentChangedEvent("Document");
+
+    @Getter
+    private String displayName;
+
+    WebhookType(String displayName) {
+        this.displayName = displayName;
+    }
 }