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spullaraspullara
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add a mechanism for running mustache templates on a web server using .json files as input.
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4 files changed

Lines changed: 204 additions & 2 deletions

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‎handlebar/pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.sampullara.mustache.java</groupId>
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<artifactId>handlebar</artifactId>
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<version>0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<name>handlebar</name>
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<url>http://maven.apache.org</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<!-- Mustache -->
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<dependency>
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<groupId>com.google.code.cli-parser</groupId>
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<artifactId>cli</artifactId>
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<version>7</version>
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</dependency>
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<dependency>
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<groupId>com.sampullara.mustache.java</groupId>
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<artifactId>compiler</artifactId>
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<version>0.1-SNAPSHOT</version>
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</dependency>
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<!-- Jetty -->
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<dependency>
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<groupId>org.eclipse.jetty</groupId>
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<artifactId>jetty-server</artifactId>
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<version>7.0.2.v20100331</version>
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</dependency>
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<!-- Testing -->
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>4.8.1</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>1.6</source>
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<target>1.6</target>
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</configuration>
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</plugin>
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<plugin>
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<artifactId>maven-assembly-plugin</artifactId>
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<configuration>
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<descriptorRefs>
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<descriptorRef>jar-with-dependencies</descriptorRef>
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</descriptorRefs>
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<archive>
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<manifest>
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<mainClass>com.sampullara.mustache.Handlebar</mainClass>
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</manifest>
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</archive>
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</configuration>
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<executions>
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<execution>
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<id>make-assembly</id>
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<phase>package</phase>
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<goals>
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<goal>attached</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎handlebar/src/main/java/com/sampullara/mustache/Handlebar.java‎

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package com.sampullara.mustache;
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import com.sampullara.cli.Args;
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import com.sampullara.cli.Argument;
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import com.sampullara.util.FutureWriter;
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import org.codehaus.jackson.JsonFactory;
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import org.codehaus.jackson.JsonNode;
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import org.codehaus.jackson.JsonParser;
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import org.codehaus.jackson.map.MappingJsonFactory;
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import org.eclipse.jetty.server.Handler;
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import org.eclipse.jetty.server.Request;
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import org.eclipse.jetty.server.Server;
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import org.eclipse.jetty.server.handler.AbstractHandler;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.BufferedInputStream;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Stack;
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import java.util.concurrent.atomic.AtomicInteger;
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/**
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* Run a local server and merge .js and .html files using mustache.
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* <p/>
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* User: sam
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* Date: Jun 15, 2010
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* Time: 4:25:31 PM
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*/
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public class Handlebar {
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@Argument(alias = "p")
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private static Integer port = 8000;
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@Argument(alias = "m", required = true)
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private static String mocks;
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private static Map<String, String> mimeTypes = new HashMap<String, String>();
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static {
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mimeTypes.put("html", "text/html");
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mimeTypes.put("png" , "image/png");
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mimeTypes.put("gif" , "image/gif");
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mimeTypes.put("jpg" , "image/jpg");
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mimeTypes.put("js" , "text/javascript");
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mimeTypes.put("css" , "text/css");
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}
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public static void main(String[] args) throws Exception {
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try {
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Args.parse(Handlebar.class, args);
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} catch (IllegalArgumentException e) {
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Args.usage(Handlebar.class);
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System.exit(1);
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}
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final MustacheCompiler mc = new MustacheCompiler(new File("."));
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final JsonFactory jf = new MappingJsonFactory();
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Handler handler = new AbstractHandler() {
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public void handle(String s, Request r, HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
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String pathInfo = req.getPathInfo();
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String extension = pathInfo.substring(pathInfo.lastIndexOf(".") + 1);
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String base = pathInfo.substring(0, pathInfo.lastIndexOf("."));
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String mimeType = mimeTypes.get(extension);
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res.setContentType(mimeType == null ? "text/html" : mimeType);
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res.setCharacterEncoding("utf-8");
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if (mimeType == null || mimeType.equals("text/html")) {
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// Handle like a template
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String filename = pathInfo.endsWith("/") ? pathInfo + "index.html" : pathInfo.substring(1);
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try {
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Mustache mustache = mc.compile(new BufferedReader(new FileReader(filename)), new Stack<String>(), new AtomicInteger(0), Handlebar.class.getClassLoader());
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FutureWriter fw = new FutureWriter(res.getWriter());
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File file = new File(mocks, base + ".json");
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res.setStatus(HttpServletResponse.SC_OK);
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if (file.exists()) {
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BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
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JsonParser parser = jf.createJsonParser(bis);
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JsonNode json = parser.readValueAsTree();
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mustache.execute(fw, new Scope(json));
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} else {
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mustache.execute(fw, new Scope());
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}
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fw.flush();
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r.setHandled(true);
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} catch (MustacheException e) {
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e.printStackTrace(res.getWriter());
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r.setHandled(true);
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res.setStatus(500);
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}
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} else {
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// Handle like a file
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res.setStatus(HttpServletResponse.SC_OK);
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OutputStream os = res.getOutputStream();
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byte[] bytes = new byte[8192];
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BufferedInputStream bis = new BufferedInputStream(new FileInputStream(pathInfo.substring(1)));
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int read;
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while((read = bis.read(bytes)) != -1) {
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os.write(bytes, 0, read);
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}
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os.close();
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}
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}
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};
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Server server = new Server(port);
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server.setHandler(handler);
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server.start();
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}
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}

‎pom.xml‎

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<groupId>com.sampullara.mustache.java</groupId>
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<artifactId>compiler</artifactId>
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<version>0.1-SNAPSHOT</version>
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<packaging>jar</packaging>
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<modules>
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<module>handlebar</module>
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</modules>
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<packaging>pom</packaging>
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<name>mustache.java</name>
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<url>http://maven.apache.org</url>

‎src/main/java/com/sampullara/mustache/Mustache.java‎

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package com.sampullara.mustache;
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import com.sampullara.util.FutureWriter;
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import org.codehaus.jackson.JsonNode;
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import java.io.File;
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import java.io.IOException;
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Iterator i;
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{
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if (value instanceof Iterable) {
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if (value instanceof Iterable && !(value instanceof JsonNode)) {
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i = ((Iterable) value).iterator();
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} else {
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i = new SingleValueIterator(value);

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