juneau-core/juneau-core-utest/src/test/java/org/apache/juneau/uon/CommonParser_UonTest.java

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package org.apache.juneau.uon;

import static org.junit.Assert.*;

import java.util.*;

import org.apache.juneau.*;
import org.apache.juneau.annotation.*;
import org.apache.juneau.parser.*;
import org.junit.*;

@SuppressWarnings({"rawtypes","serial"})
public class CommonParser_UonTest {

	ReaderParser p = UonParser.create().dictionary(A1.class).build();
	ReaderParser pe = UonParser.DEFAULT_DECODING;

	//====================================================================================================
	// testFromSerializer
	//====================================================================================================
	@Test
	public void testFromSerializer() throws Exception {
		Map m = null;
		String in;

		in = "(a=1)";
		m = (Map)p.parse(in, Object.class);
		assertEquals(1, m.get("a"));

		in = "(a=1,b='foo+bar')";
		m = (Map)p.parse(in, Object.class);
		assertEquals(1, m.get("a"));
		assertEquals("foo+bar", m.get("b"));
		m = (Map)pe.parse(in, Object.class);
		assertEquals(1, m.get("a"));
		assertEquals("foo bar", m.get("b"));

		in = "(a=1,b='foo+bar',c=false)";
		m = (Map)pe.parse(in, Object.class);
		assertEquals(1, m.get("a"));
		assertEquals("foo bar", m.get("b"));
		assertEquals(false, m.get("c"));

		in = "(a=1,b='foo%20bar',c=false)";
		m = (Map)pe.parse(in, Object.class);
		assertEquals(1, m.get("a"));
		assertEquals("foo bar", m.get("b"));
		assertEquals(false, m.get("c"));

		ObjectList jl = (ObjectList)p.parse("@((attribute=value),(attribute=~'value~'))", Object.class);
		assertEquals("value", jl.getObjectMap(0).getString("attribute"));
		assertEquals("'value'", jl.getObjectMap(1).getString("attribute"));

		A1 b = new A1();
		A2 tl = new A2();
		tl.add(new A3("name0","value0"));
		tl.add(new A3("name1","value1"));
		b.list = tl;

		in = UonSerializer.create().addBeanTypes(true).addRootType().build().serialize(b);
		b = (A1)p.parse(in, Object.class);
		assertEquals("value1", b.list.get(1).value);

		in = UonSerializer.DEFAULT.serialize(b);
		b = p.parse(in, A1.class);
		assertEquals("value1", b.list.get(1).value);
	}

	@Bean(typeName="A1")
	public static class A1 {
		public A2 list;
	}

	public static class A2 extends LinkedList<A3> {
	}

	public static class A3 {
		public String name, value;
		public A3(){}
		public A3(String name, String value) {
			this.name = name;
			this.value = value;
		}
	}

	//====================================================================================================
	// Correct handling of unknown properties.
	//====================================================================================================
	@Test
	public void testCorrectHandlingOfUnknownProperties() throws Exception {
		ReaderParser p = UonParser.create().ignoreUnknownBeanProperties().build();
		B t;

		String in =  "(a=1,unknown=3,b=2)";
		t = p.parse(in, B.class);
		assertEquals(t.a, 1);
		assertEquals(t.b, 2);

		try {
			p = UonParser.DEFAULT;
			p.parse(in, B.class);
			fail("Exception expected");
		} catch (ParseException e) {}
	}

	public static class B {
		public int a, b;
	}

	//====================================================================================================
	// Writing to Collection properties with no setters.
	//====================================================================================================
	@Test
	public void testCollectionPropertiesWithNoSetters() throws Exception {

		ReaderParser p = UonParser.DEFAULT;

		String json = "(ints=@(1,2,3),beans=@((a=1,b=2)))";
		C t = p.parse(json, C.class);
		assertEquals(t.getInts().size(), 3);
		assertEquals(t.getBeans().get(0).b, 2);
	}

	public static class C {
		private Collection<Integer> ints = new LinkedList<>();
		private List<B> beans = new LinkedList<>();
		public Collection<Integer> getInts() {
			return ints;
		}
		public List<B> getBeans() {
			return beans;
		}
	}

	//====================================================================================================
	// Parser listeners.
	//====================================================================================================
	@Test
	public void testParserListeners() throws Exception {
		UonParser p = UonParser.create().ignoreUnknownBeanProperties().listener(MyParserListener.class).build();

		String in = "(a=1,unknownProperty=foo,b=2)";
		p.parse(in, B.class);
		assertEquals(1, MyParserListener.events.size());
		assertEquals("unknownProperty, line 1, column 5", MyParserListener.events.get(0));
	}

	public static class MyParserListener extends ParserListener {
		static final List<String> events = new LinkedList<>();

		@Override /* ParserListener */
		public <T> void onUnknownBeanProperty(ParserSession session, String propertyName, Class<T> beanClass, T bean) {
			events.add(propertyName + ", " + session.getPosition());
		}
	}
}