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package org.eclipse.jetty.server.handler;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.Request;
import org.junit.Before;
import org.junit.Test;
public class ScopedHandlerTest
{
private StringBuilder _history=new StringBuilder();
@Before
public void resetHistory()
{
_history.setLength(0);
}
@Test
public void testSingle() throws Exception
{
TestHandler handler0 = new TestHandler("0");
handler0.start();
handler0.handle("target",null,null,null);
handler0.stop();
String history=_history.toString();
System.err.println(history);
assertEquals(">S0>W0<W0<S0",history);
}
@Test
public void testSimpleDouble() throws Exception
{
TestHandler handler0 = new TestHandler("0");
TestHandler handler1 = new TestHandler("1");
handler0.setHandler(handler1);
handler0.start();
handler0.handle("target",null,null,null);
handler0.stop();
String history=_history.toString();
System.err.println(history);
assertEquals(">S0>S1>W0>W1<W1<W0<S1<S0",history);
}
@Test
public void testSimpleTriple() throws Exception
{
TestHandler handler0 = new TestHandler("0");
TestHandler handler1 = new TestHandler("1");
TestHandler handler2 = new TestHandler("2");
handler0.setHandler(handler1);
handler1.setHandler(handler2);
handler0.start();
handler0.handle("target",null,null,null);
handler0.stop();
String history=_history.toString();
System.err.println(history);
assertEquals(">S0>S1>S2>W0>W1>W2<W2<W1<W0<S2<S1<S0",history);
}
@Test
public void testDouble() throws Exception
{
TestHandler handler0 = new TestHandler("0");
OtherHandler handlerA = new OtherHandler("A");
TestHandler handler1 = new TestHandler("1");
OtherHandler handlerB = new OtherHandler("B");
handler0.setHandler(handlerA);
handlerA.setHandler(handler1);
handler1.setHandler(handlerB);
handler0.start();
handler0.handle("target",null,null,null);
handler0.stop();
String history=_history.toString();
System.err.println(history);
assertEquals(">S0>S1>W0>HA>W1>HB<HB<W1<HA<W0<S1<S0",history);
}
@Test
public void testTriple() throws Exception
{
TestHandler handler0 = new TestHandler("0");
OtherHandler handlerA = new OtherHandler("A");
TestHandler handler1 = new TestHandler("1");
OtherHandler handlerB = new OtherHandler("B");
TestHandler handler2 = new TestHandler("2");
OtherHandler handlerC = new OtherHandler("C");
handler0.setHandler(handlerA);
handlerA.setHandler(handler1);
handler1.setHandler(handlerB);
handlerB.setHandler(handler2);
handler2.setHandler(handlerC);
handler0.start();
handler0.handle("target",null,null,null);
handler0.stop();
String history=_history.toString();
System.err.println(history);
assertEquals(">S0>S1>S2>W0>HA>W1>HB>W2>HC<HC<W2<HB<W1<HA<W0<S2<S1<S0",history);
}
private class TestHandler extends ScopedHandler
{
private final String _name;
private TestHandler(String name)
{
_name=name;
}
@Override
public void doScope(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
try
{
_history.append(">S").append(_name);
super.nextScope(target,baseRequest,request, response);
}
finally
{
_history.append("<S").append(_name);
}
}
@Override
public void doHandle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
try
{
_history.append(">W").append(_name);
super.nextHandle(target,baseRequest,request,response);
}
finally
{
_history.append("<W").append(_name);
}
}
}
private class OtherHandler extends HandlerWrapper
{
private final String _name;
private OtherHandler(String name)
{
_name=name;
}
@Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException
{
try
{
_history.append(">H").append(_name);
super.handle(target,baseRequest,request, response);
}
finally
{
_history.append("<H").append(_name);
}
}
}
}
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