Watcher: Remove deprecated params.ctx

When the script contexts were created in 6, the use of params.ctx was
deprecated. This commit cleans up that code and ensures that params.ctx
is null in both watcher script contexts.

Relates: elastic#34059

Author: hub-cap

x-pack/plugin/watcher/src/main/java/org/elasticsearch/xpack/watcher/condition/WatcherConditionScript.java

@@ -18,30 +18,14 @@
  * A script to determine whether a watch should be run.
  */
 public abstract class WatcherConditionScript {
-    public static final String[] PARAMETERS = {};
-
-    private static final Map<String, String> DEPRECATIONS;
-
-    static {
-        Map<String, String> deprecations = new HashMap<>();
-        deprecations.put(
-            "ctx",
-            "Accessing variable [ctx] via [params.ctx] from within a watcher_condition script " +
-                "is deprecated in favor of directly accessing [ctx]."
-        );
-        DEPRECATIONS = Collections.unmodifiableMap(deprecations);
-    }
 
     private final Map<String, Object> params;
     // TODO: ctx should have its members extracted into execute parameters, but it needs to be a member for bwc access in params
     private final Map<String, Object> ctx;
 
     public WatcherConditionScript(Map<String, Object> params, WatchExecutionContext watcherContext) {
-        Map<String, Object> paramsWithCtx = new HashMap<>(params);
-        Map<String, Object> ctx = Variables.createCtx(watcherContext, watcherContext.payload());
-        paramsWithCtx.put("ctx", ctx);
-        this.params = new ParameterMap(Collections.unmodifiableMap(paramsWithCtx), DEPRECATIONS);
-        this.ctx = ctx;
+        this.params = params;
+        this.ctx = Variables.createCtx(watcherContext, watcherContext.payload());;
     }
 
     public abstract boolean execute();

x-pack/plugin/watcher/src/main/java/org/elasticsearch/xpack/watcher/transform/script/WatcherTransformScript.java

@@ -19,30 +19,14 @@
  * A script to transform the results of a watch execution.
  */
 public abstract class WatcherTransformScript {
-    public static final String[] PARAMETERS = {};
-
-    private static final Map<String, String> DEPRECATIONS;
-
-    static {
-        Map<String, String> deprecations = new HashMap<>();
-        deprecations.put(
-            "ctx",
-            "Accessing variable [ctx] via [params.ctx] from within a watcher_transform script " +
-                "is deprecated in favor of directly accessing [ctx]."
-        );
-        DEPRECATIONS = Collections.unmodifiableMap(deprecations);
-    }
 
     private final Map<String, Object> params;
     // TODO: ctx should have its members extracted into execute parameters, but it needs to be a member bwc access in params
     private final Map<String, Object> ctx;
 
     public WatcherTransformScript(Map<String, Object> params, WatchExecutionContext watcherContext, Payload payload) {
-        Map<String, Object> paramsWithCtx = new HashMap<>(params);
-        Map<String, Object> ctx = Variables.createCtx(watcherContext, payload);
-        paramsWithCtx.put("ctx", ctx);
-        this.params = new ParameterMap(Collections.unmodifiableMap(paramsWithCtx), DEPRECATIONS);
-        this.ctx = ctx;
+        this.params = params;
+        this.ctx = Variables.createCtx(watcherContext, payload);
     }
 
     public abstract Object execute();

x-pack/plugin/watcher/src/test/java/org/elasticsearch/xpack/watcher/condition/ScriptConditionTests.java

@@ -206,7 +206,7 @@ public void testScriptConditionAccessCtx() throws Exception {
         assertThat(condition.execute(ctx).met(), is(true));
     }
 
-    public void testParamsCtxDeprecated() throws Exception {
+    public void testParamsCtxNull() throws Exception {
         WatchExecutionContext watcherContext = mock(WatchExecutionContext.class);
         when(watcherContext.id()).thenReturn(mock(Wid.class));
         when(watcherContext.watch()).thenReturn(mock(Watch.class));
@@ -216,13 +216,11 @@ public void testParamsCtxDeprecated() throws Exception {
         WatcherConditionScript watcherScript = new WatcherConditionScript(Collections.emptyMap(), watcherContext) {
             @Override
             public boolean execute() {
-                assertThat(getParams().get("ctx"), is(getCtx()));
+                assertNull(getParams().get("ctx"));
                 return true;
             }
         };
-        watcherScript.execute();
-        assertWarnings("Accessing variable [ctx] via [params.ctx] from within a watcher_condition script " +
-            "is deprecated in favor of directly accessing [ctx].");
+        assertTrue(watcherScript.execute());
     }
 
     private static XContentBuilder createConditionContent(String script, String scriptLang, ScriptType scriptType) throws IOException {

x-pack/plugin/watcher/src/test/java/org/elasticsearch/xpack/watcher/transform/script/ScriptTransformTests.java

@@ -202,9 +202,7 @@ public Object execute() {
                 return getParams().get("ctx");
             }
         };
-        assertThat(watcherScript.execute(), is(watcherScript.getCtx()));
-        assertWarnings("Accessing variable [ctx] via [params.ctx] from within a watcher_transform script " +
-            "is deprecated in favor of directly accessing [ctx].");
+        assertNull(watcherScript.execute());
     }
 
     static String scriptTypeField(ScriptType type) {