public static SemanticFunction valueFn(Object value){ return params -> Collections.singletonList(value(value)); }
@Override public List<Rule> annotate(List<String> tokens) { if(tokens.size() == 1) { try { String n = tokens.get(0); Object f = Double.valueOf(n); return Collections.singletonList(new Rule(SYMBOL, n, SemanticUtils.value(f))); }catch(NumberFormatException e) { } } return Collections.emptyList(); }
List<Map<String, Object>> applySemantics(Derivation d){ SemanticFunction fn = d.rule.getSemantics(); if(d.children == null) { if(fn == null) return Collections.singletonList(SemanticUtils.value(d.rule.getRHS().toString())); else return fn.apply(Collections.emptyList()); } String rule = d.rule.toString(); d.score = weights.containsKey(rule) ? weights.get(rule) : 0f; List<Map<String, Object>> params = new LinkedList<>(); for(Derivation child: d.children){ params.addAll(applySemantics(child)); d.score += child.score; } return fn.apply(params); }
@Test void parseSemanticsValue() { List<Map<String, Object>> expected = Collections.singletonList( value("test") ); assertEquals(expected, SemanticUtils.parseSemantics("test").apply(null)); }
@Test void processNumberParam(){ Map<String, Object> actual = new HashMap<>(); Map<String, Object> expected = new HashMap<String, Object>(){{ put("a", 10.0); put("b", 20L); }}; List<Map<String, Object>> params = Arrays.asList( value(10), value(20) ); SemanticUtils.processNumberParam(actual, "a", _N_DOUBLE(0), params); SemanticUtils.processNumberParam(actual, "b", _N_LONG(1), params); assertEquals(expected, actual); }
@Test void parseSemanticsJson() { List<Map<String, Object>> params = Arrays.asList( value(1), named("x", 10), value(3) ); List<Map<String, Object>> params2 = Arrays.asList( value("hello"), named("z", -1), value(30) ); Map<String, Object> expected = new HashMap<String, Object>(){{ put("a", 1); put("b", new HashMap<String, Object>() {{put("x", 10);}}); put("c", new HashMap<String, Object>() {{put("d", 3);}}); put("e", "hello"); }}; Map<String, Object> expected2 = new HashMap<String, Object>(){{ put("a", "hello"); put("b", new HashMap<String, Object>() {{put("z", -1);}}); put("c", new HashMap<String, Object>() {{put("d", 30);}}); put("e", "hello"); }}; String json = "{a:@first, b:@1, c:{d:@last}, e:hello}"; SemanticFunction fn = SemanticUtils.parseSemantics(json); assertEquals(Collections.singletonList(expected), fn.apply(params)); assertEquals(Collections.singletonList(expected2), fn.apply(params2)); }
@Test void parseTemplate() { Map<String, Object> template = named("a", _FIRST).named("b", _N(1)) .named("c", named("d", _LAST)); Map<String, Object> expected = new HashMap<String, Object>(){{ put("a", 1); put("b", new HashMap<String, Object>() {{put("x", 10);}}); put("c", new HashMap<String, Object>() {{put("d", 3);}}); }}; List<Map<String, Object>> params = Arrays.asList( value(1), named("x", 10), value(3) ); SemanticFunction fn = SemanticUtils.parseTemplate(template); assertEquals(Collections.singletonList(expected), fn.apply(params)); }
@Test void parseSemanticsMerge() { Map<String, Object> expected = new HashMap<String, Object>(){{ put("a", 1); put("x", 10); put("y", 20); }}; List<Map<String, Object>> params = Arrays.asList( value(1), named("x", 10), named("y", 20) ); String json = "{a:@first, @merge:[1,2]}"; SemanticFunction fn = SemanticUtils.parseSemantics(json); assertEquals(Collections.singletonList(expected), fn.apply(params)); }
@Test void parseTemplateMerge() { Map<String, Object> template = named("a", _FIRST) .named("@merge", Arrays.asList(1, 2)); Map<String, Object> expected = new HashMap<String, Object>(){{ put("a", 1); put("x", 10); put("y", 20); }}; List<Map<String, Object>> params = Arrays.asList( value(1), named("x", 10), named("y", 20) ); SemanticFunction fn = SemanticUtils.parseTemplate(template); assertEquals(Collections.singletonList(expected), fn.apply(params)); }
@Test void parseTemplateAppend(){ Map<String, Object> template = named("x", _APPEND); Map<String, Object> expected = named("x", Arrays.asList( named("a", 10), named("b",20), named("c",3) )); List<Map<String, Object>> params = Arrays.asList( value(1), named("x", Arrays.asList(named("a", 10), named("b", 20))), named("c",3) ); SemanticFunction fn = SemanticUtils.parseTemplate(template); assertEquals(Collections.singletonList(expected), fn.apply(params)); }