Initial commit of a Servlet implementation of a currency converter

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@822037 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 232 insertions, 0 deletions

diff --git a/sandbox/travelsample/contributions/currency-servlet/pom.xml b/sandbox/travelsample/contributions/currency-servlet/pom.xml
new file mode 100644
index 0000000000..91b48d8965
--- /dev/null
+++ b/sandbox/travelsample/contributions/currency-servlet/pom.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+    * Licensed to the Apache Software Foundation (ASF) under one

+    * or more contributor license agreements.  See the NOTICE file

+    * distributed with this work for additional information

+    * regarding copyright ownership.  The ASF licenses this file

+    * to you 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.    

+-->

+<project>

+    <modelVersion>4.0.0</modelVersion>

+    <parent>

+        <groupId>org.apache.tuscany.sca</groupId>

+        <artifactId>tuscany-sca</artifactId>

+        <version>1.6-SNAPSHOT</version>

+        <!--relativePath>../../pom.xml</relativePath-->

+    </parent><version>1.0-SNAPSHOT</version>

+    <artifactId>scatours-contribution-currency-servlet</artifactId>

+    <packaging>war</packaging>

+    <name>Apache Tuscany SCA Tours Currency Converter Servlet Contribution</name>

+

+    <dependencies>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-sca-api</artifactId>

+            <version>1.6-SNAPSHOT</version>

+            <scope>compile</scope>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-implementation-web-runtime</artifactId>

+            <version>1.6-SNAPSHOT</version>

+            <scope>runtime</scope>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>tuscany-host-webapp</artifactId>

+            <version>1.6-SNAPSHOT</version>

+            <scope>runtime</scope>

+        </dependency>

+

+        <dependency>

+            <groupId>javax.servlet</groupId>

+            <artifactId>servlet-api</artifactId>

+            <version>2.3</version>

+            <scope>provided</scope>

+        </dependency>

+

+        <dependency>

+            <groupId>org.apache.tuscany.sca</groupId>

+            <artifactId>scatours-contribution-currency</artifactId>

+            <version>1.0-SNAPSHOT</version>

+        </dependency>

+    </dependencies>

+

+    <build>

+       <finalName>${artifactId}</finalName>

+    </build>

+</project>

diff --git a/sandbox/travelsample/contributions/currency-servlet/src/main/java/com/tuscanyscatours/currencyconverter/servlet/CurrencyConverterServlet.java b/sandbox/travelsample/contributions/currency-servlet/src/main/java/com/tuscanyscatours/currencyconverter/servlet/CurrencyConverterServlet.java
new file mode 100644
index 0000000000..37987b29e7
--- /dev/null
+++ b/sandbox/travelsample/contributions/currency-servlet/src/main/java/com/tuscanyscatours/currencyconverter/servlet/CurrencyConverterServlet.java
@@ -0,0 +1,74 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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 com.tuscanyscatours.currencyconverter.servlet;
+
+import java.io.IOException;
+import java.io.Writer;
+
+import javax.servlet.ServletConfig;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.osoa.sca.ComponentContext;
+import org.osoa.sca.annotations.Reference;
+
+import com.tuscanyscatours.currencyconverter.CurrencyConverter;
+
+public class CurrencyConverterServlet extends HttpServlet {
+
+    @Reference
+    protected CurrencyConverter currencyConverter;
+
+    @Override
+    public void init(ServletConfig config) {
+        if (currencyConverter == null) {
+            // The Currency Converter reference will only be injected from the @Reference 
+            // annotation in containers supporting SCA "deep" integration. In other 
+            // environments in can be looked up from the ComponentContext.
+            ComponentContext context = (ComponentContext) config.getServletContext()
+                    .getAttribute("org.osoa.sca.ComponentContext");
+            currencyConverter = context.getService(CurrencyConverter.class, "currencyConverter");
+        }
+    }
+
+    @Override
+    protected void service(HttpServletRequest request, HttpServletResponse response) throws IOException {
+        Writer out = response.getWriter();
+        out.write("<html><body><h2>SCA Tours Currency Converter Servlet</h2>");
+        out.write("Welcome to the SCA Tours Currency Converter Servlet<p>");
+        out.write("<form method=post action=\"CurrencyConverterServlet\">");
+        out.write("Enter value in US Dollars");
+        out.write("<input type=text name=dollars size=15><p>");
+        out.write("<input type=submit>");
+        out.write("</form><p>");
+
+        String dollarsStr = request.getParameter("dollars");
+        if ( dollarsStr != null) {
+           double dollars = Double.parseDouble(dollarsStr);
+           double converted = currencyConverter.convert("USD", "GBP", dollars);
+           out.write(dollars + " US Dollars = " + converted + " GB Pounds");
+       }
+
+        out.write("</body></html>");
+        out.write("</body></html>");
+        out.flush();
+        out.close();
+    }
+}
diff --git a/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/META-INF/sca-deployables/web.composite b/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/META-INF/sca-deployables/web.composite
new file mode 100644
index 0000000000..c9ef16ee1b
--- /dev/null
+++ b/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/META-INF/sca-deployables/web.composite
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you 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.

+-->

+<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"

+    xmlns:tuscany="http://tuscany.apache.org/xmlns/sca/1.0"

+    targetNamespace="http://scatours.com"

+    name="CurrencyConverterServlet">

+

+    <component name="WebClient">

+        <implementation.web web-uri=""/>

+        <reference name="currencyConverter" target="CurrencyConverter"/>

+    </component>

+

+    <component name="CurrencyConverter">

+        <implementation.java class="com.tuscanyscatours.currencyconverter.impl.CurrencyConverterImpl"/>

+        <service name="CurrencyConverter"/>

+    </component>

+</composite>

diff --git a/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/WEB-INF/web.xml b/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/WEB-INF/web.xml
new file mode 100644
index 0000000000..2204c67870
--- /dev/null
+++ b/sandbox/travelsample/contributions/currency-servlet/src/main/webapp/WEB-INF/web.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>

+<!--

+ * Licensed to the Apache Software Foundation (ASF) under one

+ * or more contributor license agreements.  See the NOTICE file

+ * distributed with this work for additional information

+ * regarding copyright ownership.  The ASF licenses this file

+ * to you 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.

+-->

+

+<web-app version="2.4"

+    xmlns="http://java.sun.com/xml/ns/j2ee"

+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

+    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

+

+    <display-name>SCA Tours Currency Converter Servlet</display-name>

+

+    <filter>

+        <filter-name>tuscany</filter-name>

+        <filter-class>org.apache.tuscany.sca.host.webapp.TuscanyServletFilter</filter-class>

+    </filter>

+

+    <filter-mapping>

+        <filter-name>tuscany</filter-name>

+        <url-pattern>/*</url-pattern>

+    </filter-mapping>

+

+    <servlet>

+        <servlet-name>CurrencyConverterServlet</servlet-name>

+        <servlet-class>com.tuscanyscatours.currencyconverter.servlet.CurrencyConverterServlet</servlet-class>

+    </servlet>

+

+    <servlet-mapping>

+        <servlet-name>CurrencyConverterServlet</servlet-name>

+        <url-pattern>/CurrencyConverterServlet</url-pattern>

+    </servlet-mapping>

+

+    <welcome-file-list>

+        <welcome-file>CurrencyConverterServlet</welcome-file>

+    </welcome-file-list>

+</web-app>

+