juneau-core-test/src/test/java/org/apache/juneau/PojoSwapTest.java

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package org.apache.juneau;

import static org.junit.Assert.*;

import org.apache.juneau.json.*;
import org.apache.juneau.parser.*;
import org.apache.juneau.serializer.*;
import org.apache.juneau.transform.*;
import org.junit.*;

@SuppressWarnings("javadoc")
public class PojoSwapTest {

	//====================================================================================================
	// Test same type
	// If you define a PojoSwap<String,String> filter, then it should be invoked on all strings.
	//====================================================================================================
	@Test
	public void testSameType() throws Exception {
		JsonSerializer s = new JsonSerializerBuilder().simple().pojoSwaps(ASwap.class).build();
		JsonParser p = new JsonParserBuilder().pojoSwaps(ASwap.class).build();
		String r;

		r = s.serialize("foobar");
		assertEquals("'xfoobarx'", r);
		r = p.parse(r, String.class);
		assertEquals("foobar", r);

		ObjectMap m = new ObjectMap("{foo:'bar'}");
		r = s.serialize(m);
		assertEquals("{xfoox:'xbarx'}", r);
	}

	public static class ASwap extends StringSwap<String> {
		@Override
		public String swap(BeanSession session, String o) throws SerializeException {
			return "x" + o + "x";
		}

		@Override
		public String unswap(BeanSession session, String f, ClassMeta<?> hint) throws ParseException {
			return f.substring(1, f.length()-1);
		}
	}
}