Handle @version context entries

fsteeg · fsteeg · commit 0f439dcaadb7 · 2019-12-10T12:55:27.000+01:00
diff --git a/core/src/main/java/com/github/jsonldjava/core/Context.java b/core/src/main/java/com/github/jsonldjava/core/Context.java
@@ -215,6 +215,18 @@ else if (context instanceof String) {
                 // 3.3
                 throw new JsonLdError(Error.INVALID_LOCAL_CONTEXT, context);
             }
+            // 5.5 in 1.1 (https://w3c.github.io/json-ld-api/#context-processing-algorithm)
+            if (((Map<String, Object>) context).containsKey(JsonLdConsts.VERSION)) {
+                final Object version = ((Map<String, Object>) context).get(JsonLdConsts.VERSION);
+                // 5.5.1
+                if(!version.equals(Double.valueOf(1.1))) {
+                    throw new JsonLdError(Error.INVALID_VERSION_VALUE, context);
+                }
+                // 5.5.2
+                if(options.getProcessingMode().equals(JsonLdOptions.JSON_LD_1_0)) {
+                    throw new JsonLdError(Error.PROCESSING_MODE_CONFLICT, context);
+                }
+            }
             checkEmptyKey((Map<String, Object>) context);
             // 3.4
             if (!parsingARemoteContext
@@ -277,7 +289,7 @@ else if (context instanceof String) {
             final Map<String, Boolean> defined = new LinkedHashMap<String, Boolean>();
             for (final String key : ((Map<String, Object>) context).keySet()) {
                 if (JsonLdConsts.BASE.equals(key) || JsonLdConsts.VOCAB.equals(key)
-                        || JsonLdConsts.LANGUAGE.equals(key)) {
+                        || JsonLdConsts.LANGUAGE.equals(key) || JsonLdConsts.VERSION.equals(key)) {
                     continue;
                 }
                 result.createTermDefinition((Map<String, Object>) context, key, defined);
diff --git a/core/src/main/java/com/github/jsonldjava/core/JsonLdConsts.java b/core/src/main/java/com/github/jsonldjava/core/JsonLdConsts.java
@@ -58,6 +58,7 @@ public final class JsonLdConsts {
     public static final String VOCAB = "@vocab";
     public static final String BASE = "@base";
     public static final String REQUIRE_ALL = "@requireAll";
+    public static final String VERSION = "@version";
 
     public enum Embed {
         ALWAYS, NEVER, LAST, LINK;
diff --git a/core/src/main/java/com/github/jsonldjava/core/JsonLdError.java b/core/src/main/java/com/github/jsonldjava/core/JsonLdError.java
@@ -102,6 +102,10 @@ public enum Error {
 
         INVALID_EMBED_VALUE("invalid @embed value"),
 
+        INVALID_VERSION_VALUE("invalid @version value"),
+
+        PROCESSING_MODE_CONFLICT("processing mode conflict"),
+
         // non spec related errors
         SYNTAX_ERROR("syntax error"),
 
diff --git a/core/src/main/java/com/github/jsonldjava/core/JsonLdOptions.java b/core/src/main/java/com/github/jsonldjava/core/JsonLdOptions.java
@@ -86,7 +86,7 @@ public JsonLdOptions copy() {
     /**
      * http://www.w3.org/TR/json-ld-api/#widl-JsonLdOptions-processingMode
      */
-    private String processingMode = JSON_LD_1_0;
+    private String processingMode = JSON_LD_1_1;
     /**
      * http://www.w3.org/TR/json-ld-api/#widl-JsonLdOptions-documentLoader
      */
