added profiles for samples

samples/bmi/calculator/pom.xml

@@ -64,4 +64,34 @@
       </plugin>
     </plugins>
   </build>
+
+  <profiles>
+    <profile>
+      <id>flowcontrol</id>
+      <dependencies>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>handler-flowcontrol-qps</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+    <profile>
+      <id>bizkeeper</id>
+      <dependencies>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>handler-bizkeeper</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+    <profile>
+      <id>tracing</id>
+      <dependencies>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>handler-tracing-zipkin</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+  </profiles>
 </project>

samples/bmi/calculator/src/main/java/io/servicecomb/samples/bmi/CalculatorServiceImpl.java

@@ -19,8 +19,10 @@
 import java.math.BigDecimal;
 import java.math.RoundingMode;
 
+import org.springframework.context.annotation.Profile;
 import org.springframework.stereotype.Service;
 
+@Profile("!v2")
 @Service
 public class CalculatorServiceImpl implements CalculatorService {
 

samples/bmi/calculator/src/main/java/io/servicecomb/samples/bmi/HalfCalculatorServiceImpl.java

@@ -0,0 +1,33 @@
+/*
+ *  Copyright 2017 Huawei Technologies Co., Ltd
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package io.servicecomb.samples.bmi;
+
+import org.springframework.context.annotation.Profile;
+import org.springframework.stereotype.Service;
+
+@Profile("v2")
+@Service
+public class HalfCalculatorServiceImpl extends CalculatorServiceImpl {
+
+  /**
+   * calculate half of BMI value
+   */
+  @Override
+  public double calculate(double height, double weight) {
+    return super.calculate(height, weight) / 2;
+  }
+}

samples/bmi/webapp/pom.xml

@@ -72,4 +72,29 @@
       </plugin>
     </plugins>
   </build>
+
+  <profiles>
+    <profile>
+      <id>loadbalance</id>
+      <dependencies>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>handler-loadbalance</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+    <profile>
+      <id>tracing</id>
+      <dependencies>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>handler-tracing-zipkin</artifactId>
+        </dependency>
+        <dependency>
+          <groupId>io.servicecomb</groupId>
+          <artifactId>spring-cloud-zuul-zipkin</artifactId>
+        </dependency>
+      </dependencies>
+    </profile>
+  </profiles>
 </project>

samples/bmi/webapp/src/main/java/io/servicecomb/samples/bmi/filters/CseHeaderFilter.java

@@ -0,0 +1,63 @@
+/*
+ *  Copyright 2017 Huawei Technologies Co., Ltd
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package io.servicecomb.samples.bmi.filters;
+
+import static io.servicecomb.core.Const.CSE_CONTEXT;
+
+import org.springframework.stereotype.Component;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.netflix.zuul.ZuulFilter;
+import com.netflix.zuul.context.RequestContext;
+
+import io.servicecomb.config.ConfigUtil;
+import io.servicecomb.config.archaius.sources.MicroserviceConfigLoader;
+import io.servicecomb.foundation.common.utils.JsonUtils;
+import io.servicecomb.serviceregistry.definition.MicroserviceDefinition;
+
+@Component
+public class CseHeaderFilter extends ZuulFilter {
+  @Override
+  public String filterType() {
+    return "pre";
+  }
+
+  @Override
+  public int filterOrder() {
+    return 0;
+  }
+
+  @Override
+  public boolean shouldFilter() {
+    return true;
+  }
+
+  @Override
+  public Object run() {
+    RequestContext ctx = RequestContext.getCurrentContext();
+    MicroserviceConfigLoader loader = ConfigUtil.getMicroserviceConfigLoader();
+    MicroserviceDefinition microserviceDefinition = new MicroserviceDefinition(loader.getConfigModels());
+    ctx.addZuulRequestHeader("x-cse-src-microservice", microserviceDefinition.getMicroserviceName());
+
+    try {
+      ctx.addZuulRequestHeader(CSE_CONTEXT, JsonUtils.writeValueAsString(ctx.getZuulRequestHeaders()));
+    } catch (JsonProcessingException e) {
+      throw new IllegalStateException("Unable to write request headers as json to " + CSE_CONTEXT, e);
+    }
+    return null;
+  }
+}

samples/bmi/webapp/src/main/resources/static/index.html

@@ -53,7 +53,8 @@ <h3>Your BMI result is: <span id="bmi_result"></span></h3>
       </div>
     </div>
 
-    <script>
+  </body>
+  <script>
       $("#error").hide();
       $("#submit").click(function () {
         if ( !$("#height").val() || !$("#weight").val() ) {
@@ -83,12 +84,16 @@ <h3>Your BMI result is: <span id="bmi_result"></span></h3>
               return;
             }
             var resp = JSON.parse(xhr.responseText);
-            $("#error_message").text(resp.error + ": " + resp.exception)
-            $("#error").removeClass().addClass("alert").addClass("alert-danger").show();
+            if (xhr.status == 429) {
+              $("#error_message").text(resp.message);
+              $("#error").removeClass().addClass("alert").addClass("alert-danger").show();
+            } else {
+              $("#error_message").text(resp.error + ": " + resp.exception)
+              $("#error").removeClass().addClass("alert").addClass("alert-danger").show();
+            }
           }
         });
       });
     </script>
-  </body>
 
 </html>