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Posted to commits@tuscany.apache.org by wj...@apache.org on 2009/04/03 23:45:51 UTC
svn commit: r761812 - in /tuscany/branches/sca-java-1.x/modules:
binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/
binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/
binding-erlang/src/mai...
Author: wjaniszewski
Date: Fri Apr 3 21:45:50 2009
New Revision: 761812
URL: http://svn.apache.org/viewvc?rev=761812&view=rev
Log:
Added configurable thread pools, fixed problem with ReferenceServiceTestCase.testMultipleMethod() test case, added writing to binding processor - problems with testing
Modified:
tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangNode.java
tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/MboxListener.java
tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ReferenceServiceTestCase.java
tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/ErlangBinding.java
tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingImpl.java
tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingProcessor.java
tuscany/branches/sca-java-1.x/modules/binding-erlang/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ErlangBindingProcessorTestCase.java
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangNode.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangNode.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangNode.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangNode.java Fri Apr 3 21:45:50 2009
@@ -75,8 +75,7 @@
}
public void run() {
- // FIXME: add configurable thread pools
- executors = Executors.newFixedThreadPool(10);
+ executors = Executors.newFixedThreadPool(nodeElement.getBinding().getServiceThreadPool());
while (!stopRequested) {
try {
OtpConnection connection = self.accept();
@@ -92,6 +91,7 @@
logger.log(Level.WARNING, "Error while authenticating client", e);
}
}
+ executors.shutdownNow();
}
private void registerBinding(ErlangBinding binding,
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/MboxListener.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/MboxListener.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/MboxListener.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/MboxListener.java Fri Apr 3 21:45:50 2009
@@ -37,7 +37,7 @@
public MboxListener(OtpMbox mbox, Object response) {
this(mbox, response, 0);
}
-
+
public MboxListener(OtpMbox mbox, Object response, long duration) {
this.mbox = mbox;
this.response = response;
@@ -59,6 +59,20 @@
}
public OtpMsg getMsg() {
+ // Sometimes clients tries to get message which isn't fully received.
+ // If so - give it more tries. This sometimes caused
+ // NullPointerException in
+ // ReferenceServiceTestCase.testMultipleArguments().
+ for (int i = 0; i < 3; i++) {
+ if (msg != null) {
+ return msg;
+ } else {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException e) {
+ }
+ }
+ }
return msg;
}
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ReferenceServiceTestCase.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ReferenceServiceTestCase.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ReferenceServiceTestCase.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang-runtime/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ReferenceServiceTestCase.java Fri Apr 3 21:45:50 2009
@@ -284,7 +284,6 @@
*
* @throws Exception
*/
- // TODO: this test fails sometime
@Test(timeout = 1000)
public void testMultipleArguments() throws Exception {
MboxListener mboxListener = new MboxListener(serMbox, true);
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/ErlangBinding.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/ErlangBinding.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/ErlangBinding.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/ErlangBinding.java Fri Apr 3 21:45:50 2009
@@ -30,6 +30,8 @@
public interface ErlangBinding extends Binding {
final long NO_TIMEOUT = 0;
+ // NOTE: default thread pool size
+ final int DEFAULT_THREAD_POOL = 20;
QName BINDING_ERLANG_QNAME = new QName(Constants.SCA10_TUSCANY_NS, "binding.erlang");
@@ -56,5 +58,13 @@
boolean hasTimeout();
boolean hasCookie();
+
+ int getServiceThreadPool();
+
+ void setServiceThreadPool(int threads);
+
+ boolean isDefaultTimeout();
+
+ boolean isDefaultServiceThreadPool();
}
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingImpl.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingImpl.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingImpl.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingImpl.java Fri Apr 3 21:45:50 2009
@@ -37,6 +37,10 @@
private String module;
private boolean mbox;
private String cookie;
+ private int serviceThreadPool = DEFAULT_THREAD_POOL;
+
+ private boolean defaultTimeout = true;
+ private boolean defaultThreads = true;
private List<Intent> requiredIntents = new ArrayList<Intent>();
private List<PolicySet> policySets = new ArrayList<PolicySet>();
@@ -121,6 +125,9 @@
public void setTimeout(long timeout) {
// NOTE: not setting timeout or setting it to 0 will cause no timeout
this.timeout = timeout;
+ if (timeout != 0) {
+ defaultTimeout = false;
+ }
}
public String getCookie() {
@@ -139,4 +146,21 @@
return cookie != null && cookie.length() > 0;
}
+ public int getServiceThreadPool() {
+ return serviceThreadPool;
+ }
+
+ public void setServiceThreadPool(int threads) {
+ this.serviceThreadPool = threads;
+ this.defaultThreads = false;
+ }
+
+ public boolean isDefaultServiceThreadPool() {
+ return defaultThreads;
+ }
+
+ public boolean isDefaultTimeout() {
+ return defaultTimeout;
+ }
+
}
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingProcessor.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingProcessor.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingProcessor.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang/src/main/java/org/apache/tuscany/sca/binding/erlang/impl/ErlangBindingProcessor.java Fri Apr 3 21:45:50 2009
@@ -44,6 +44,13 @@
private PolicyFactory policyFactory;
private PolicyAttachPointProcessor policyProcessor;
+ private static final String ATTR_COOKIE = "cookie";
+ private static final String ATTR_MBOX = "mbox";
+ private static final String ATTR_MODULE = "module";
+ private static final String ATTR_NODE = "node";
+ private static final String ATTR_SERVICE_THREAD_POOL = "serviceThreadPool";
+ private static final String ATTR_TIMEOUT = "timeout";
+
public ErlangBindingProcessor(ModelFactoryExtensionPoint modelFactories) {
this.policyFactory = modelFactories.getFactory(PolicyFactory.class);
this.policyProcessor = new PolicyAttachPointProcessor(policyFactory);
@@ -65,23 +72,34 @@
// Read the policies
policyProcessor.readPolicies(binding, reader);
- binding.setNode(reader.getAttributeValue(null, "node"));
- String mboxValue = reader.getAttributeValue(null, "mbox");
+
+ binding.setNode(reader.getAttributeValue(null, ATTR_NODE));
+
+ String mboxValue = reader.getAttributeValue(null, ATTR_MBOX);
+
if (mboxValue != null && mboxValue.length() > 0) {
try {
- boolean boolMboxValue = Boolean.parseBoolean(mboxValue);
- binding.setMbox(boolMboxValue);
+ binding.setMbox(Boolean.parseBoolean(mboxValue));
} catch (Exception e) {
}
}
- String timeoutValue = reader.getAttributeValue(null, "timeout");
+
+ try {
+ binding.setTimeout(Long.parseLong(reader.getAttributeValue(null,
+ ATTR_TIMEOUT)));
+ } catch (NumberFormatException e) {
+ }
+
+ binding.setModule(reader.getAttributeValue(null, ATTR_MODULE));
+
+ binding.setCookie(reader.getAttributeValue(null, ATTR_COOKIE));
+
try {
- long longTimeoutValue = Long.parseLong(timeoutValue);
- binding.setTimeout(longTimeoutValue);
+ binding.setServiceThreadPool(Integer.parseInt(reader
+ .getAttributeValue(null, ATTR_SERVICE_THREAD_POOL)));
} catch (NumberFormatException e) {
}
- binding.setModule(reader.getAttributeValue(null, "module"));
- binding.setCookie(reader.getAttributeValue(null, "cookie"));
+
return binding;
}
@@ -91,8 +109,36 @@
*/
public void write(ErlangBinding model, XMLStreamWriter writer)
throws ContributionWriteException, XMLStreamException {
+
+
writer.writeStartElement(Constants.SCA10_TUSCANY_NS, "binding.erlang");
- // TODO: implement writing binding element
+
+ if (model.getCookie() != null && model.getCookie().length() > 0) {
+ writer.writeAttribute(ATTR_COOKIE, model.getCookie());
+ }
+
+ if (model.isMbox()) {
+ writer.writeAttribute(ATTR_MBOX, Boolean.TRUE.toString());
+ }
+
+ if (model.getModule() != null && model.getModule().length() > 0) {
+ writer.writeAttribute(ATTR_MODULE, model.getModule());
+ }
+
+ if (model.getNode() != null && model.getNode().length() > 0) {
+ writer.writeAttribute(ATTR_NODE, model.getNode());
+ }
+
+ if (!model.isDefaultServiceThreadPool()) {
+ writer.writeAttribute(ATTR_SERVICE_THREAD_POOL, Integer
+ .toString(model.getServiceThreadPool()));
+ }
+
+ if (!model.isDefaultTimeout()) {
+ writer.writeAttribute(ATTR_TIMEOUT, Long.toString(model
+ .getTimeout()));
+ }
+
writer.writeEndElement();
}
Modified: tuscany/branches/sca-java-1.x/modules/binding-erlang/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ErlangBindingProcessorTestCase.java
URL: http://svn.apache.org/viewvc/tuscany/branches/sca-java-1.x/modules/binding-erlang/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ErlangBindingProcessorTestCase.java?rev=761812&r1=761811&r2=761812&view=diff
==============================================================================
--- tuscany/branches/sca-java-1.x/modules/binding-erlang/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ErlangBindingProcessorTestCase.java (original)
+++ tuscany/branches/sca-java-1.x/modules/binding-erlang/src/test/java/org/apache/tuscany/sca/binding/erlang/testing/ErlangBindingProcessorTestCase.java Fri Apr 3 21:45:50 2009
@@ -21,9 +21,11 @@
import static org.junit.Assert.assertEquals;
+import java.io.ByteArrayOutputStream;
import java.io.StringReader;
import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamReader;
import org.apache.tuscany.sca.assembly.Composite;
@@ -39,6 +41,7 @@
import org.apache.tuscany.sca.monitor.MonitorFactory;
import org.apache.tuscany.sca.monitor.impl.DefaultMonitorFactoryImpl;
import org.junit.BeforeClass;
+import org.junit.Ignore;
import org.junit.Test;
/**
@@ -46,79 +49,106 @@
*/
public class ErlangBindingProcessorTestCase {
- private static final String COMPOSITE =
- "<?xml version=\"1.0\" encoding=\"ASCII\"?>" + "<composite xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:tuscany=\"http://tuscany.apache.org/xmlns/sca/1.0\" targetNamespace=\"http://binding-erlang\" name=\"binding-erlang\">"
- + " <component name=\"HelloWorldComponent\">"
- + " <implementation.java class=\"services.HelloWorld\"/>"
- + " <service name=\"HelloWorldService\">"
- + " <tuscany:binding.erlang node=\"SomeNode\" timeout=\"1000\" cookie=\"cookie\"/>"
- + " </service>"
- + " </component>"
- + "</composite>";
-
- private static final String COMPOSITE_DEFAULT_TIMEOUT =
- "<?xml version=\"1.0\" encoding=\"ASCII\"?>" + "<composite xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:tuscany=\"http://tuscany.apache.org/xmlns/sca/1.0\" targetNamespace=\"http://binding-erlang\" name=\"binding-erlang\">"
- + " <component name=\"HelloWorldComponent\">"
- + " <implementation.java class=\"services.HelloWorld\"/>"
- + " <service name=\"HelloWorldService\">"
- + " <tuscany:binding.erlang node=\"SomeNode\"/>"
- + " </service>"
- + " </component>"
- + "</composite>";
-
- private static XMLInputFactory inputFactory;
- private static StAXArtifactProcessor<Object> staxProcessor;
- private static Monitor monitor;
-
- @BeforeClass
- public static void init() throws Exception {
- DefaultExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
- inputFactory = XMLInputFactory.newInstance();
- // Create a monitor
- UtilityExtensionPoint utilities = extensionPoints.getExtensionPoint(UtilityExtensionPoint.class);
- MonitorFactory monitorFactory = new DefaultMonitorFactoryImpl();
- if (monitorFactory != null) {
- monitor = monitorFactory.createMonitor();
- utilities.addUtility(monitorFactory);
- }
- StAXArtifactProcessorExtensionPoint staxProcessors =
- new DefaultStAXArtifactProcessorExtensionPoint(extensionPoints);
- staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors, inputFactory, null, monitor);
- }
-
- /**
- * Tests reading "binding.erlang" element
- *
- * @throws Exception
- */
- @Test
- public void testLoadValidComposite() throws Exception {
- XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(COMPOSITE));
+ private static final String COMPOSITE = "<?xml version=\"1.0\" encoding=\"ASCII\"?>"
+ + "<composite xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:tuscany=\"http://tuscany.apache.org/xmlns/sca/1.0\" targetNamespace=\"http://binding-erlang\" name=\"binding-erlang\">"
+ + " <component name=\"HelloWorldComponent\">"
+ + " <implementation.java class=\"services.HelloWorld\"/>"
+ + " <service name=\"HelloWorldService\">"
+ + " <tuscany:binding.erlang node=\"SomeNode\" timeout=\"1000\" cookie=\"cookie\" serviceThreadPool=\"1\"/>"
+ + " </service>" + " </component>" + "</composite>";
+
+ private static final String COMPOSITE_DEFAULT_TIMEOUT = "<?xml version=\"1.0\" encoding=\"ASCII\"?>"
+ + "<composite xmlns=\"http://www.osoa.org/xmlns/sca/1.0\" xmlns:tuscany=\"http://tuscany.apache.org/xmlns/sca/1.0\" targetNamespace=\"http://binding-erlang\" name=\"binding-erlang\">"
+ + " <component name=\"HelloWorldComponent\">"
+ + " <implementation.java class=\"services.HelloWorld\"/>"
+ + " <service name=\"HelloWorldService\">"
+ + " <tuscany:binding.erlang node=\"SomeNode\"/>"
+ + " </service>" + " </component>" + "</composite>";
+
+ private static XMLInputFactory inputFactory;
+ private static StAXArtifactProcessor<Object> staxProcessor;
+ private static Monitor monitor;
+
+ @BeforeClass
+ public static void init() throws Exception {
+ DefaultExtensionPointRegistry extensionPoints = new DefaultExtensionPointRegistry();
+ inputFactory = XMLInputFactory.newInstance();
+ // Create a monitor
+ UtilityExtensionPoint utilities = extensionPoints
+ .getExtensionPoint(UtilityExtensionPoint.class);
+ MonitorFactory monitorFactory = new DefaultMonitorFactoryImpl();
+ if (monitorFactory != null) {
+ monitor = monitorFactory.createMonitor();
+ utilities.addUtility(monitorFactory);
+ }
+ StAXArtifactProcessorExtensionPoint staxProcessors = new DefaultStAXArtifactProcessorExtensionPoint(
+ extensionPoints);
+ staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors,
+ inputFactory, null, monitor);
+ }
+
+ /**
+ * Tests reading "binding.erlang" element
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testLoadValidComposite() throws Exception {
+ XMLStreamReader reader = inputFactory
+ .createXMLStreamReader(new StringReader(COMPOSITE));
+ Composite composite = (Composite) staxProcessor.read(reader);
+ ErlangBinding binding = (ErlangBinding) composite.getComponents()
+ .get(0).getServices().get(0).getBindings().get(0);
+ assertEquals("SomeNode", binding.getNode());
+ assertEquals(1000, binding.getTimeout());
+ assertEquals("cookie", binding.getCookie());
+ assertEquals(true, binding.hasTimeout());
+ assertEquals(true, binding.hasCookie());
+ assertEquals(1, binding.getServiceThreadPool());
+ assertEquals(false, binding.isDefaultServiceThreadPool());
+ assertEquals(false, binding.isDefaultTimeout());
+ }
+
+ /**
+ * Tests using default "resultTimeout", default thread pool, no cookie
+ *
+ * @throws Exception
+ */
+ @Test
+ public void testLoadDefaultTimeout() throws Exception {
+ XMLStreamReader reader = inputFactory
+ .createXMLStreamReader(new StringReader(
+ COMPOSITE_DEFAULT_TIMEOUT));
+ Composite composite = (Composite) staxProcessor.read(reader);
+ ErlangBinding binding = (ErlangBinding) composite.getComponents()
+ .get(0).getServices().get(0).getBindings().get(0);
+ assertEquals(ErlangBindingImpl.NO_TIMEOUT, binding.getTimeout());
+ assertEquals(null, binding.getCookie());
+ assertEquals(false, binding.hasTimeout());
+ assertEquals(false, binding.hasCookie());
+ assertEquals(ErlangBinding.DEFAULT_THREAD_POOL, binding
+ .getServiceThreadPool());
+ assertEquals(true, binding.isDefaultServiceThreadPool());
+ assertEquals(true, binding.isDefaultTimeout());
+ }
+
+ @Test
+ @Ignore("unbound namespace problem")
+ //FIXME: fix it
+ public void testWrite() throws Exception {
+ XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(COMPOSITE));
Composite composite = (Composite)staxProcessor.read(reader);
- ErlangBinding binding =
- (ErlangBinding)composite.getComponents().get(0).getServices().get(0).getBindings().get(0);
- assertEquals("SomeNode", binding.getNode());
- assertEquals(1000, binding.getTimeout());
- assertEquals("cookie", binding.getCookie());
- assertEquals(true, binding.hasTimeout());
- assertEquals(true, binding.hasCookie());
- }
-
- /**
- * Tests using default "resultTimeout" value
- *
- * @throws Exception
- */
- @Test
- public void testLoadDefaultTimeout() throws Exception {
- XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(COMPOSITE_DEFAULT_TIMEOUT));
- Composite composite = (Composite)staxProcessor.read(reader);
- ErlangBinding binding =
- (ErlangBinding)composite.getComponents().get(0).getServices().get(0).getBindings().get(0);
- assertEquals(ErlangBindingImpl.NO_TIMEOUT, binding.getTimeout());
- assertEquals(null, binding.getCookie());
- assertEquals(false, binding.hasTimeout());
- assertEquals(false, binding.hasCookie());
- }
-
+ ErlangBinding binding1 = (ErlangBinding)composite.getComponents().get(0).getServices().get(0).getBindings().get(0);
+ ByteArrayOutputStream bos = new ByteArrayOutputStream();
+ XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
+
+ staxProcessor.write(composite, outputFactory.createXMLStreamWriter(bos));
+
+ XMLStreamReader reader2 = inputFactory.createXMLStreamReader(new StringReader(bos.toString()));
+ Composite composite2 = (Composite)staxProcessor.read(reader2);
+ ErlangBinding binding2 = (ErlangBinding)composite2.getComponents().get(0).getServices().get(0).getBindings().get(0);
+
+ //compare binding1 to binding2
+ }
+
}