Update constraints for extension enhancement

Author: zhossain-info

src/main/java/com/relogiclabs/jschema/function/FunctionProvider.java

@@ -0,0 +1,18 @@
+package com.relogiclabs.jschema.function;
+
+import com.relogiclabs.jschema.extension.ConstraintFunctions;
+import com.relogiclabs.jschema.internal.function.SchemaFunctions5;
+
+/**
+ * {@code SchemaFunctions} is designed to provide public access to all internal constraint
+ * functions.
+ */
+public class SchemaFunctions extends SchemaFunctions5 {
+    public static SchemaFunctions getInstance(ConstraintFunctions functions) {
+        var instance = functions.getRuntime().getImports().getInstance(SchemaFunctions.class);
+        if(instance == null) throw new IllegalStateException("Instance not found for "
+            + SchemaFunctions.class);
+        instance.setContext(functions);
+        return instance;
+    }
+}

src/main/java/com/relogiclabs/jschema/function/SchemaFunctions.java

@@ -7,10 +7,11 @@
 import com.relogiclabs.jschema.message.ActualDetail;
 import com.relogiclabs.jschema.message.ErrorDetail;
 import com.relogiclabs.jschema.message.ExpectedDetail;
-import com.relogiclabs.jschema.node.JFunction;
+import com.relogiclabs.jschema.node.JNode;
 import com.relogiclabs.jschema.node.JString;
 import com.relogiclabs.jschema.time.DateTimeType;
 import com.relogiclabs.jschema.time.JsonDateTime;
+import com.relogiclabs.jschema.type.EString;
 
 import static com.relogiclabs.jschema.internal.util.StringHelper.quote;
 
@@ -30,26 +31,28 @@ public DateTimeAgent(DateTimeParser parser) {
         this.parser = parser;
     }
 
-    public JsonDateTime parse(JFunction caller, JString dateTime) {
+    public JsonDateTime parse(JNode invoker, EString dateTime) {
         try {
             if(parser == null) parser = new DateTimeParser(pattern, type);
             return parser.parse(dateTime.getValue());
         } catch(DateTimeLexerException ex) {
-            fail(caller, new FunctionValidationException(
+            if(!(dateTime instanceof JString node)) fail(invoker, ex);
+            else fail(invoker, new FunctionValidationException(
                 new ErrorDetail(ex.getCode(), ex.getMessage()),
-                new ExpectedDetail(caller, "a valid " + type + " pattern"),
-                new ActualDetail(dateTime, "found " + quote(pattern) + " that is invalid"), ex));
+                new ExpectedDetail(invoker, "a valid " + type + " pattern"),
+                new ActualDetail(node, "found " + quote(pattern) + " that is invalid"), ex));
         } catch(InvalidDateTimeException ex) {
-            fail(caller, new FunctionValidationException(
+            if(!(dateTime instanceof JString node)) fail(invoker, ex);
+            else fail(invoker, new FunctionValidationException(
                 new ErrorDetail(ex.getCode(), ex.getMessage()),
-                new ExpectedDetail(caller, "a valid " + type + " formatted as " + quote(pattern)),
-                new ActualDetail(dateTime, "target " + dateTime + " is invalid or malformed"),
+                new ExpectedDetail(invoker, "a valid " + type + " formatted as " + quote(pattern)),
+                new ActualDetail(node, "target " + dateTime + " is invalid or malformed"),
                 ex));
         }
         return null;
     }
 
-    private static void fail(JFunction caller, RuntimeException exception) {
-        caller.getRuntime().getExceptions().fail(exception);
+    private static void fail(JNode invoker, RuntimeException exception) {
+        invoker.getRuntime().getExceptions().fail(exception);
     }
 }

src/main/java/com/relogiclabs/jschema/internal/function/CoreLibrary.java

@@ -0,0 +1,24 @@
+package com.relogiclabs.jschema.internal.function;
+
+import com.relogiclabs.jschema.extension.ConstraintFunctions;
+import com.relogiclabs.jschema.node.JNode;
+import com.relogiclabs.jschema.tree.RuntimeContext;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.lang.reflect.Method;
+
+@Getter @Setter
+public abstract class FunctionSupport implements ConstraintFunctions {
+    protected RuntimeContext runtime;
+    protected Method method;
+    protected JNode invoker;
+
+    public <T extends JNode> T getInvoker(Class<T> type) {
+        return type.cast(invoker);
+    }
+
+    public String getOutline(Object object) {
+        return runtime.getOutlineFormatter().getOutline(object);
+    }
+}

src/main/java/com/relogiclabs/jschema/internal/function/DateTimeAgent.java

@@ -2,7 +2,7 @@
 
 import java.util.regex.Pattern;
 
-public final class IPAddress {
+public final class IPAddressAgent {
     public static final int IPV4_VERSION = 4;
     public static final int IPV6_VERSION = 6;
 
@@ -32,7 +32,7 @@ public final class IPAddress {
     private static final Pattern IPV4_PATTERN = Pattern.compile(IPV4_REGEX);
     private static final Pattern IPV6_PATTERN = Pattern.compile(IPV6_REGEX);
 
-    private IPAddress() {
+    private IPAddressAgent() {
         throw new UnsupportedOperationException("This class is not intended for instantiation");
     }