HWKALERTS-91 Change Tag impl to Map of name-value pairs and store on …

…Trigger

- This initial impl still uses Trigger's Tags for Alerts fetch.  That
  will change as the Events work is completed.
- Simplify Tag persistence into single table and improve distribution

hawkular-alerts-api/src/main/java/org/hawkular/alerts/api/model/TagType.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2015 Red Hat, Inc. and/or its affiliates
+ * and other contributors as indicated by the @author tags.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.hawkular.alerts.api.model;
+
+/**
+ * The type of Tag being stored or fethed.
+ *
+ * @author jay shaughnessy
+ * @author lucas ponce
+ */
+public enum TagType {
+    TRIGGER, ALERT, EVENT
+}

hawkular-alerts-api/src/main/java/org/hawkular/alerts/api/model/trigger/Trigger.java

@@ -50,6 +50,9 @@ public class Trigger {
     @JsonInclude(Include.NON_EMPTY)
     protected Map<String, String> context;
 
+    @JsonInclude(Include.NON_EMPTY)
+    protected Map<String, String> tags;
+
     /** A map with key based on actionPlugin and value a set of action's ids */
     @JsonInclude(Include.NON_EMPTY)
     private Map<String, Set<String>> actions;
@@ -129,17 +132,22 @@ public Trigger(String triggerId, String name, Map<String, String> context) {
     }
 
     public Trigger(String tenantId, String id, String name) {
-        this(tenantId, id, name, null);
+        this(tenantId, id, name, null, null);
     }
 
     public Trigger(String tenantId, String id, String name, Map<String, String> context) {
+        this(tenantId, id, name, context, null);
+    }
+
+    public Trigger(String tenantId, String id, String name, Map<String, String> context, Map<String, String> tags) {
         if (id == null || id.isEmpty()) {
             throw new IllegalArgumentException("Trigger id must be non-empty");
         }
         this.tenantId = tenantId;
         this.id = id;
         this.name = name;
         this.context = context;
+        this.tags = tags;
 
         this.actions = new HashMap<>();
         this.autoDisable = false;
@@ -209,19 +217,29 @@ public void setContext(Map<String, String> context) {
         this.context = context;
     }
 
-    /**
-     * Add context information.
-     * @param name context key.
-     * @param value context value.
-     */
-    public void addProperty(String name, String value) {
+    public void addContext(String name, String value) {
         if (null == name || null == value) {
-            throw new IllegalArgumentException("Propety must have non-null name and value");
+            throw new IllegalArgumentException("Context must have non-null name and value");
         }
-        if (null == context) {
-            context = new HashMap<>();
+        getContext().put(name, value);
+    }
+
+    public Map<String, String> getTags() {
+        if (null == tags) {
+            tags = new HashMap<>();
+        }
+        return tags;
+    }
+
+    public void setTags(Map<String, String> tags) {
+        this.tags = tags;
+    }
+
+    public void addTag(String name, String value) {
+        if (null == name || null == value) {
+            throw new IllegalArgumentException("Tag must have non-null name and value");
         }
-        context.put(name, value);
+        getTags().put(name, value);
     }
 
     public boolean isAutoDisable() {
@@ -437,7 +455,7 @@ public String toString() {
                 + ", autoResolveAlerts=" + autoResolveAlerts + ", severity=" + severity + ", actions=" + actions
                 + ", firingMatch=" + firingMatch + ", autoResolveMatch=" + autoResolveMatch + ", context=" + context
                 + ", group=" + group + ", memberOf=" + memberOf + ", orphan=" + orphan + ", enabled=" + enabled
-                + ", mode=" + mode + "]";
+                + ", mode=" + mode + ", tags=" + tags + "]";
     }
 
 }

hawkular-alerts-api/src/main/java/org/hawkular/alerts/api/services/AlertsCriteria.java

@@ -17,10 +17,11 @@
 package org.hawkular.alerts.api.services;
 
 import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
 
 import org.hawkular.alerts.api.model.Severity;
 import org.hawkular.alerts.api.model.condition.Alert;
-import org.hawkular.alerts.api.model.trigger.Tag;
 
 /**
  * Query criteria for fetching Alerts.
@@ -38,8 +39,7 @@ public class AlertsCriteria {
     Collection<Severity> severities = null;
     String triggerId = null;
     Collection<String> triggerIds = null;
-    Tag tag = null;
-    Collection<Tag> tags = null;
+    Map<String, String> tags = null;
     boolean thin = false;
 
     public AlertsCriteria() {
@@ -122,28 +122,21 @@ public void setTriggerIds(Collection<String> triggerIds) {
         this.triggerIds = triggerIds;
     }
 
-    public Tag getTag() {
-        return tag;
-    }
-
-    /**
-     * @param tag fetched Alerts must be for triggers with the specified Tag. Ignored if Tags filter is set.
-     */
-    public void setTag(Tag tag) {
-        this.tag = tag;
-    }
-
-    public Collection<Tag> getTags() {
+    public Map<String, String> getTags() {
         return tags;
     }
 
-    /**
-     * @param tags fetched Alerts must be for trigger with any of the specified Tags.
-     */
-    public void setTags(Collection<Tag> tags) {
+    public void setTags(Map<String, String> tags) {
         this.tags = tags;
     }
 
+    public void addTag(String tname, String tvalue) {
+        if (null == tags) {
+            tags = new HashMap<>();
+        }
+        tags.put(tname, tvalue);
+    }
+
     public Severity getSeverity() {
         return severity;
     }
@@ -175,7 +168,6 @@ public boolean hasCriteria() {
                 || null != severity
                 || null != triggerId
                 || null != alertId
-                || null != tag
                 || (null != statusSet && !statusSet.isEmpty())
                 || (null != severities && !severities.isEmpty())
                 || (null != triggerIds && !triggerIds.isEmpty())
@@ -188,6 +180,6 @@ public String toString() {
         return "AlertsCriteria [startTime=" + startTime + ", endTime=" + endTime + ", alertId=" + alertId
                 + ", alertIds=" + alertIds + ", status=" + status + ", statusSet=" + statusSet + ", severity="
                 + severity + ", severities=" + severities + ", triggerId=" + triggerId + ", triggerIds=" + triggerIds
-                + ", tag=" + tag + ", tags=" + tags + ", thin=" + thin + "]";
+                + ", tags=" + tags + ", thin=" + thin + "]";
     }
 }