Remove lenient boolean handling

With this commit we remove some leftovers from #26389 which cleaned up
lenient boolean handling.

Relates #26389
Relates #22298
Relates #34467

libs/x-content/src/main/java/org/elasticsearch/common/xcontent/XContentParser.java

@@ -204,26 +204,6 @@ enum NumberType {
 
     boolean booleanValue() throws IOException;
 
-    // TODO #22298: Remove this method and replace all call sites with #isBooleanValue()
-    /**
-     * returns true if the current value is boolean in nature.
-     * values that are considered booleans:
-     * - boolean value (true/false)
-     * - numeric integers (=0 is considered as false, !=0 is true)
-     * - one of the following strings: "true","false","on","off","yes","no","1","0"
-     *
-     * @deprecated Just present for providing backwards compatibility. Use {@link #isBooleanValue()} instead.
-     */
-    @Deprecated
-    boolean isBooleanValueLenient() throws IOException;
-
-    // TODO #22298: Remove this method and replace all call sites with #booleanValue()
-    /**
-     * @deprecated Just present for providing backwards compatibility. Use {@link #booleanValue()} instead.
-     */
-    @Deprecated
-    boolean booleanValueLenient() throws IOException;
-
     /**
      * Reads a plain binary value that was written via one of the following methods:
      *

libs/x-content/src/main/java/org/elasticsearch/common/xcontent/support/AbstractXContentParser.java

@@ -98,34 +98,6 @@ public boolean booleanValue() throws IOException {
         return doBooleanValue();
     }
 
-    @Override
-    @Deprecated
-    public boolean isBooleanValueLenient() throws IOException {
-        switch (currentToken()) {
-            case VALUE_BOOLEAN:
-                return true;
-            case VALUE_NUMBER:
-                NumberType numberType = numberType();
-                return numberType == NumberType.LONG || numberType == NumberType.INT;
-            case VALUE_STRING:
-                return Booleans.isBooleanLenient(textCharacters(), textOffset(), textLength());
-            default:
-                return false;
-        }
-    }
-
-    @Override
-    @Deprecated
-    public boolean booleanValueLenient() throws IOException {
-        Token token = currentToken();
-        if (token == Token.VALUE_NUMBER) {
-            return intValue() != 0;
-        } else if (token == Token.VALUE_STRING) {
-            return Booleans.parseBooleanLenient(textCharacters(), textOffset(), textLength(), false /* irrelevant */);
-        }
-        return doBooleanValue();
-    }
-
     protected abstract boolean doBooleanValue() throws IOException;
 
     @Override

libs/x-content/src/test/java/org/elasticsearch/common/xcontent/XContentParserTests.java

@@ -189,35 +189,6 @@ private Map<String, String> readMapStrings(String source) throws IOException {
         }
     }
 
-    @SuppressWarnings("deprecation") // #isBooleanValueLenient() and #booleanValueLenient() are the test subjects
-    public void testReadLenientBooleans() throws IOException {
-        // allow String, boolean and int representations of lenient booleans
-        String falsy = randomFrom("\"off\"", "\"no\"", "\"0\"", "0", "\"false\"", "false");
-        String truthy = randomFrom("\"on\"", "\"yes\"", "\"1\"", "1", "\"true\"", "true");
-
-        try (XContentParser parser = createParser(JsonXContent.jsonXContent, "{\"foo\": " + falsy + ", \"bar\": " + truthy + "}")) {
-            XContentParser.Token token = parser.nextToken();
-            assertThat(token, equalTo(XContentParser.Token.START_OBJECT));
-            token = parser.nextToken();
-            assertThat(token, equalTo(XContentParser.Token.FIELD_NAME));
-            assertThat(parser.currentName(), equalTo("foo"));
-            token = parser.nextToken();
-            assertThat(token, isIn(
-                Arrays.asList(XContentParser.Token.VALUE_STRING, XContentParser.Token.VALUE_NUMBER, XContentParser.Token.VALUE_BOOLEAN)));
-            assertTrue(parser.isBooleanValueLenient());
-            assertFalse(parser.booleanValueLenient());
-
-            token = parser.nextToken();
-            assertThat(token, equalTo(XContentParser.Token.FIELD_NAME));
-            assertThat(parser.currentName(), equalTo("bar"));
-            token = parser.nextToken();
-            assertThat(token, isIn(
-                Arrays.asList(XContentParser.Token.VALUE_STRING, XContentParser.Token.VALUE_NUMBER, XContentParser.Token.VALUE_BOOLEAN)));
-            assertTrue(parser.isBooleanValueLenient());
-            assertTrue(parser.booleanValueLenient());
-        }
-    }
-
     public void testReadBooleansFailsForLenientBooleans() throws IOException {
         String falsy = randomFrom("\"off\"", "\"no\"", "\"0\"", "0");
         String truthy = randomFrom("\"on\"", "\"yes\"", "\"1\"", "1");

server/src/main/java/org/elasticsearch/action/get/MultiGetRequest.java

@@ -427,8 +427,7 @@ private static void parseDocuments(XContentParser parser, List<Item> items, @Nul
                     } else if (VERSION_TYPE.match(currentFieldName, parser.getDeprecationHandler())) {
                         versionType = VersionType.fromString(parser.text());
                     } else if (SOURCE.match(currentFieldName, parser.getDeprecationHandler())) {
-                        // check lenient to avoid interpreting the value as string but parse strict in order to provoke an error early on.
-                        if (parser.isBooleanValueLenient()) {
+                        if (parser.isBooleanValue()) {
                             fetchSourceContext = new FetchSourceContext(parser.booleanValue(), fetchSourceContext.includes(),
                                 fetchSourceContext.excludes());
                         } else if (token == Token.VALUE_STRING) {

server/src/test/java/org/elasticsearch/action/get/MultiGetRequestTests.java

@@ -98,24 +98,6 @@ public void testUnexpectedField() throws IOException {
                         "unexpected token [START_OBJECT], expected [FIELD_NAME] or [START_ARRAY]"));
     }
 
-    public void testAddWithInvalidSourceValueIsRejected() throws Exception {
-        String sourceValue = randomFrom("on", "off", "0", "1");
-        XContentParser parser = createParser(XContentFactory.jsonBuilder()
-            .startObject()
-                .startArray("docs")
-                    .startObject()
-                        .field("_source", sourceValue)
-                    .endObject()
-                .endArray()
-            .endObject()
-        );
-
-        MultiGetRequest multiGetRequest = new MultiGetRequest();
-        IllegalArgumentException ex = expectThrows(IllegalArgumentException.class, () -> multiGetRequest.add
-            (randomAlphaOfLength(5), randomAlphaOfLength(3), null, FetchSourceContext.FETCH_SOURCE, null, parser, true));
-        assertEquals("Failed to parse value [" + sourceValue + "] as only [true] or [false] are allowed.", ex.getMessage());
-    }
-
     public void testAddWithValidSourceValueIsAccepted() throws Exception {
         XContentParser parser = createParser(XContentFactory.jsonBuilder()
             .startObject()

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/watcher/support/xcontent/WatcherXContentParser.java

@@ -253,18 +253,6 @@ public boolean booleanValue() throws IOException {
         return parser.booleanValue();
     }
 
-    @Override
-    @SuppressWarnings("deprecated")
-    public boolean isBooleanValueLenient() throws IOException {
-        return parser.isBooleanValueLenient();
-    }
-
-    @Override
-    @SuppressWarnings("deprecated")
-    public boolean booleanValueLenient() throws IOException {
-        return parser.booleanValueLenient();
-    }
-
     @Override
     public byte[] binaryValue() throws IOException {
         return parser.binaryValue();