Thread: [DL-Learner SVN] SF.net SVN: dl-learner:[2858] trunk/interfaces

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Revision: 2858
          http://dl-learner.svn.sourceforge.net/dl-learner/?rev=2858&view=rev
Author:   kurzum
Date:     2011-06-09 16:12:18 +0000 (Thu, 09 Jun 2011)

Log Message:
-----------
 added the webservice, the code is untested as i still can not compile DL-Learner at the moment, go to interfaces and start with mvn jetty:run

Modified Paths:
--------------
    trunk/interfaces/pom.xml

Added Paths:
-----------
    trunk/interfaces/src/main/java/org/dllearner/server/Rest.java
    trunk/interfaces/src/main/webapp/
    trunk/interfaces/src/main/webapp/WEB-INF/
    trunk/interfaces/src/main/webapp/WEB-INF/web.xml

Modified: trunk/interfaces/pom.xml
===================================================================

--- trunk/interfaces/pom.xml	2011-06-08 18:10:11 UTC (rev 2857)
+++ trunk/interfaces/pom.xml	2011-06-09 16:12:18 UTC (rev 2858)
@@ -1,88 +1,112 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-	<modelVersion>4.0.0</modelVersion>
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-	<groupId>org.dllearner</groupId>
-	<artifactId>interfaces</artifactId>
-	<packaging>jar</packaging>
-	<name>Interfaces: GUI, CLI, Web Service </name>
-	<url>http://aksw.org/Projects/DLLearner</url>
+    <groupId>org.dllearner</groupId>
+    <artifactId>interfaces</artifactId>
+    <packaging>jar</packaging>
+    <name>Interfaces: GUI, CLI, Web Service</name>
+    <url>http://aksw.org/Projects/DLLearner</url>
 
-	<parent>
-		<groupId>org.dllearner</groupId>
-		<artifactId>dllearner-parent</artifactId>
-		<version>1.0-SNAPSHOT</version>
-	</parent>
+    <parent>
+        <groupId>org.dllearner</groupId>
+        <artifactId>dllearner-parent</artifactId>
+        <version>1.0-SNAPSHOT</version>
+    </parent>
 
-	<build>
-		<plugins>
-			<!--Surefire - for JUnits -->
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<configuration>
-					<excludes>
-						<exclude>org/dllearner/test/junit/OWLlinkTest.java</exclude>
-					</excludes>
-				</configuration>
-			</plugin>
-			<plugin>
-				<artifactId>jdeb</artifactId>
-				<groupId>org.vafer</groupId>
-				<version>0.8</version>
-				<executions>
-					<execution>
-						<phase>package</phase>
-						<goals>
-							<goal>jdeb</goal>
-						</goals>
-						<configuration>
-							<dataSet>
-								<data>
-									<src>${project.build.directory}/${project.build.finalName}.jar</src>
-									<type>file</type>
-									<mapper>
-										<type>perm</type>
-										<prefix>/usr/share/dllearner</prefix>
-									</mapper>
-								</data>
-							</dataSet>
-						</configuration>
-					</execution>
-				</executions>
-			</plugin>
-		</plugins>
-	</build>
+    <build>
+        <finalName>dl-learner</finalName>
+        <plugins>
+            <plugin>
+                <groupId>org.codehaus.mojo</groupId>
+                <artifactId>tomcat-maven-plugin</artifactId>
+            </plugin>
+            <plugin>
+                <groupId>org.mortbay.jetty</groupId>
+                <artifactId>maven-jetty-plugin</artifactId>
+            </plugin>
+            <!--Surefire - for JUnits -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>org/dllearner/test/junit/OWLlinkTest.java</exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+            <plugin>
+                <artifactId>jdeb</artifactId>
+                <groupId>org.vafer</groupId>
+                <version>0.8</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>jdeb</goal>
+                        </goals>
+                        <configuration>
+                            <dataSet>
+                                <data>
+                                    <src>${project.build.directory}/${project.build.finalName}.jar</src>
+                                    <type>file</type>
+                                    <mapper>
+                                        <type>perm</type>
+                                        <prefix>/usr/share/dllearner</prefix>
+                                    </mapper>
+                                </data>
+                            </dataSet>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 
-	<dependencies>
-		<dependency>
-			<groupId>org.dllearner</groupId>
-			<artifactId>components-core</artifactId>
-		</dependency>
+    <dependencies>
+        <dependency>
+            <groupId>org.dllearner</groupId>
+            <artifactId>components-core</artifactId>
+        </dependency>
 
-		<!--Added the dependency of the core tests so that they will be accessible 
-			from the tests in this component -->
-		<dependency>
-			<groupId>org.dllearner</groupId>
-			<artifactId>components-core</artifactId>
-			<classifier>tests</classifier>
-			<scope>test</scope>
-		</dependency>
+        <!--Added the dependency of the core tests so that they will be accessible
+              from the tests in this component -->
+        <dependency>
+            <groupId>org.dllearner</groupId>
+            <artifactId>components-core</artifactId>
+            <classifier>tests</classifier>
+            <scope>test</scope>
+        </dependency>
 
-		<dependency>
-			<groupId>org.dllearner</groupId>
-			<artifactId>components-ext</artifactId>
-		</dependency>
-		<dependency>
-			<groupId>com.jamonapi</groupId>
-			<artifactId>jamon</artifactId>
-		</dependency>
+        <dependency>
+            <groupId>org.dllearner</groupId>
+            <artifactId>components-ext</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.jamonapi</groupId>
+            <artifactId>jamon</artifactId>
+        </dependency>
 
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<scope>test</scope>
-		</dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <scope>test</scope>
+        </dependency>
 
-	</dependencies>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>servlet-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>jsp-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>javax.servlet</groupId>
+            <artifactId>jstl</artifactId>
+        </dependency>
+
+    </dependencies>
+
+
 </project>

Added: trunk/interfaces/src/main/java/org/dllearner/server/Rest.java
===================================================================
--- trunk/interfaces/src/main/java/org/dllearner/server/Rest.java	                        (rev 0)
+++ trunk/interfaces/src/main/java/org/dllearner/server/Rest.java	2011-06-09 16:12:18 UTC (rev 2858)
@@ -0,0 +1,140 @@
+package org.dllearner.server;
+
+import com.jamonapi.Monitor;
+import com.jamonapi.MonitorFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.net.URLEncoder;
+import java.security.InvalidParameterException;
+
+
+public abstract class Rest extends HttpServlet {
+    private static Logger log = LoggerFactory.getLogger(Rest.class);
+
+    @Override
+    protected void doGet(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
+        handle(httpServletRequest, httpServletResponse);
+    }
+
+    @Override
+    protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
+        handle(httpServletRequest, httpServletResponse);
+    }
+
+
+    /**
+     * *
+     *
+     * @param httpServletRequest
+     * @param httpServletResponse
+     * @throws ServletException
+     * @throws java.io.IOException
+     */
+    private void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws ServletException, IOException {
+        Monitor mon = MonitorFactory.getTimeMonitor("NIFParameters.getInstance").start();
+        String result = "";
+        try {
+            //check parameters
+            String conf = "";
+            if (isSet(httpServletRequest, "conf")) {
+                conf = httpServletRequest.getParameter("conf");
+            } else {
+                throw new InvalidParameterException("No parameter 'conf' found. " + getDocumentation(httpServletRequest.getRequestURL().toString()));
+            }
+
+            //output default is json
+            String output = "json";
+            if (isSet(httpServletRequest, "output")) {
+                output = httpServletRequest.getParameter("output");
+                //use the function one of
+                if (!oneOf(output, "json", "xml")) {
+                    throw new InvalidParameterException("Wrong parameter value for \"output\", must be one of ( json, xml ) " + getDocumentation(httpServletRequest.getRequestURL().toString()));
+                }
+            }
+
+            /**
+             * Do the magic here
+             */
+            result = conf;
+
+            PrintWriter pw = httpServletResponse.getWriter();
+            log.debug("Request handled: " + logMonitor(mon.stop()));
+            pw.print(result);
+            pw.close();
+
+        } catch (IllegalArgumentException e) {
+            String msg = e.getMessage() + printParameterMap(httpServletRequest);
+            log.error(msg);
+            httpServletResponse.setContentType("text/plain");
+            PrintWriter out = httpServletResponse.getWriter();
+            out.println(msg);
+            out.close();
+
+        } catch (Exception e) {
+            String msg = "An error occured: " + e.getMessage() + printParameterMap(httpServletRequest);
+            log.error(msg, e);
+            httpServletResponse.setContentType("text/plain");
+            PrintWriter out = httpServletResponse.getWriter();
+            out.println(msg);
+            out.close();
+
+        }
+
+    }
+
+
+    /**
+     * Examples are from NIF
+     *
+     * @param serviceUrl
+     * @return
+     */
+    public static String getDocumentation(String serviceUrl) {
+        String doc = "";
+        try {
+            doc = "\nExample1: \n " + serviceUrl + "?input=" + URLEncoder.encode("That's a lot of nuts! That'll be four bucks, baby! You want fries with that? ", "UTF-8") + "&type=text";
+            doc += "\nExample2: \n " + serviceUrl + "?input=" + URLEncoder.encode("That's a lot of nuts! That's a lot of nuts! ", "UTF-8") + "&type=text";
+        } catch (Exception e) {
+            log.error("", e);
+        }
+        return doc;
+    }
+
+    public static boolean isSet(HttpServletRequest httpServletRequest, String name) {
+        log.trace("isSet(" + name + ")");
+        log.trace(httpServletRequest.getParameterValues(name) + "");
+        return httpServletRequest.getParameterValues(name) != null && httpServletRequest.getParameterValues(name).length == 1 && httpServletRequest.getParameter(name).length() > 0;
+    }
+
+    public static boolean oneOf(String value, String... possibleValues) {
+        for (String s : possibleValues) {
+            if (s.equals(value)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    protected static String logMonitor(Monitor m) {
+        return "needed: " + m.getLastValue() + " ms. (" + m.getTotal() + " total)";
+    }
+
+    public static String printParameterMap(HttpServletRequest httpServletRequest) {
+        StringBuffer buf = new StringBuffer();
+        for (Object key : httpServletRequest.getParameterMap().keySet()) {
+            buf.append("\nParameter: " + key + " Values: ");
+            for (String s : httpServletRequest.getParameterValues((String) key)) {
+                buf.append(((s.length() > 200) ? s.substring(0, 200) + "..." : s) + " ");
+            }
+        }
+        return buf.toString();
+    }
+
+}

Added: trunk/interfaces/src/main/webapp/WEB-INF/web.xml
===================================================================
--- trunk/interfaces/src/main/webapp/WEB-INF/web.xml	                        (rev 0)
+++ trunk/interfaces/src/main/webapp/WEB-INF/web.xml	2011-06-09 16:12:18 UTC (rev 2858)
@@ -0,0 +1,19 @@
+<!DOCTYPE web-app PUBLIC
+        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
+        "http://java.sun.com/dtd/web-app_2_3.dtd" >
+
+<web-app>
+    <display-name>DL-Learner</display-name>
+
+
+    <servlet>
+        <servlet-name>rest</servlet-name>
+        <servlet-class>org.dllearner.server.Rest</servlet-class>
+    </servlet>
+
+    <servlet-mapping>
+        <servlet-name>rest</servlet-name>
+        <url-pattern>/rest</url-pattern>
+    </servlet-mapping>
+
+</web-app>


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Thread: [DL-Learner SVN] SF.net SVN: dl-learner:[2858] trunk/interfaces

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