Java MustacheEngine类代码示例

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
/**
 * Constructs a template engine with some additional helpers and lambdas for HTML generation.
 */
public MustacheEngine getEngine() {
    if (engine == null) {
        ClassPathTemplateLocator genericLocator = new ClassPathTemplateLocator(PRIO_CLASS_PATH,
            TEMPLATE_PATH, TEMPLATE_SUFFIX);
        MustacheEngineBuilder builder = MustacheEngineBuilder.newBuilder()
            .setProperty(EngineConfigurationKey.DEFAULT_FILE_ENCODING,
                StandardCharsets.UTF_8.name())
            .addTemplateLocator(genericLocator)
            .registerHelper(ExampleHelper.NAME, new ExampleHelper())
            .registerHelper(TypeLinkHelper.NAME, new TypeLinkHelper())
            .registerHelpers(HelpersBuilder.builtin().addInclude().addInvoke().addSet()
                .addSwitch().addWith().build())
            .addGlobalData(MarkdownLambda.NAME, new MarkdownLambda())
            .addGlobalData(UpperCaseLambda.NAME, new UpperCaseLambda());
        if (templateDir != null) {
            builder.addTemplateLocator(
                new FileSystemTemplateLocator(PRIO_FILE_SYSTEM, templateDir, TEMPLATE_SUFFIX));
        }
        engine = builder.build();
    }
    return engine;
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
/**
 * Constructs a template engine with some additional helpers and lambdas for Typescript
 * generation.
 */
public MustacheEngine getEngine() {
    if (engine == null) {
        ClassPathTemplateLocator genericLocator = new ClassPathTemplateLocator(PRIO_CLASS_PATH,
            TEMPLATE_PATH, TEMPLATE_SUFFIX);
        MustacheEngineBuilder builder = MustacheEngineBuilder.newBuilder()
            .setProperty(EngineConfigurationKey.DEFAULT_FILE_ENCODING,
                StandardCharsets.UTF_8.name())
            .addTemplateLocator(genericLocator);
        if (templateDir != null) {
            builder.addTemplateLocator(
                new FileSystemTemplateLocator(PRIO_FILE_SYSTEM, templateDir, TEMPLATE_SUFFIX));
        }
        engine = builder.build();
    }
    return engine;
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
/**
 * @param type
 * @param property
 */
private void generateArrayProperty(ArrayTypeDeclaration property) {
    String fieldName = Names.buildVariableName(property);
    String itemTypeName = context.getApiModel().getItemType(property);
    String typeVar = Annotations.findTypeVar(property);
    String tsItemType;
    if (typeVar != null) {
        tsItemType = typeVar;
    }
    else {
        tsItemType = itemTypeName;
    }
    MustacheEngine engine = context.getTemplateEngine().getEngine();
    Map<String, String> contextObject = ImmutableMap.of("name", fieldName, "tsPropType",
        tsItemType + "[]");
    engine.getMustache("property").render(context.getOutput(), contextObject);
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
/**
 * @param type
 * @param property
 */
private void generateProperty(TypeDeclaration property) {
    String fieldName = Names.buildVariableName(property);
    String tsPropType;
    String typeVar = Annotations.findTypeVar(property);
    if (typeVar != null) {
        tsPropType = typeVar;
    }
    else {
        tsPropType = propertyTypeWithArgs(property);
    }
    MustacheEngine engine = context.getTemplateEngine().getEngine();
    Map<String, String> contextObject = ImmutableMap.of("name", fieldName, "tsPropType",
        tsPropType);
    engine.getMustache("property").render(context.getOutput(), contextObject);
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testEncoding() {

    TemplateLocator locator = new ServletContextTemplateLocator(10,
            "/templates", "html");

    MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .addTemplateLocator(locator)
            .setProperty(EngineConfigurationKey.DEFAULT_FILE_ENCODING,
                    "windows-1250")
            .build();

    Mustache encoding = engine.getMustache("encoding");
    assertNotNull(encoding);
    assertEquals("Hurá ěščřřžžýá!", encoding.render(null));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testMultipleInheritance() {
    MapTemplateLocator locator = new MapTemplateLocator(
            ImmutableMap
                    .of("super",
                            "for {{$insert}}{{/insert}}",
                            "sub",
                            "And now {{<super}} {{$insert}}something {{$insert2}}{{/insert2}} different{{/insert}} {{/super}}.",
                            "subsub",
                            "{{<sub}} {{$insert2}}completely{{/insert2}} {{/sub}}"));
    MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .addTemplateLocator(locator).build();
    Mustache sub = engine.getMustache("subsub");
    assertEquals("And now for something completely different.",
            sub.render(null));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@ApplicationScoped
@Produces
public MustacheEngine produceMustacheEngine(
        SimpleStatsCollector simpleStatsCollector) {
    // 1. CDI and servlet resolvers are registered automatically
    // 2. Precompile all available templates
    // 3. Do not escape values
    // 4. PrettyTimeHelper is registered automatically
    // 5. Register extra helpers (set, isOdd, ...)
    // 6. ServletContextTemplateLocator is most suitable for webapps
    // 7. The current locale will be based on the Accept-Language header
    // 8. Minify all the templates
    // 9. Collect some basic rendering statistics
    return MustacheEngineBuilder.newBuilder()
            .setProperty(EngineConfigurationKey.PRECOMPILE_ALL_TEMPLATES,
                    true)
            .setProperty(EngineConfigurationKey.SKIP_VALUE_ESCAPING, true)
            .registerHelpers(HelpersBuilder.extra()
                    .add("format", new DateTimeFormatHelper()).build())
            .addTemplateLocator(ServletContextTemplateLocator.builder()
                    .setRootPath("/WEB-INF/templates").setSuffix("html")
                    .build())
            .setLocaleSupport(new RequestLocaleSupport())
            .addMustacheListener(Minify.htmlListener())
            .addMustacheListener(simpleStatsCollector).build();
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testStaticMethod() {
    final MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .registerHelpers(HelpersBuilder.empty().addInvoke().build())
            .build();
    List<String> list = new ArrayList<>();
    list.add("foo");
    list.add("bar");
    list.add("baz");
    assertEquals("bazbarfoo",
            engine.compileMustache("invoke_static_01",
                    "{{invoke this class='java.util.Collections' m='reverse'}}{{#each this}}{{this}}{{/each}}")
                    .render(list));
    assertEquals("war",
            engine.compileMustache("invoke_static_02",
                    "{{#invoke 'WAR' class='org.trimou.ArchiveType' m='valueOf'}}{{suffix}}{{/invoke}}")
                    .render(null));
    assertEquals("1",
            engine.compileMustache("invoke_static_03",
                    "{{#invoke 'MILLISECONDS' class='java.util.concurrent.TimeUnit' m='valueOf'}}{{invoke 1000l m='toSeconds'}}{{/invoke}}")
                    .render(null));
    assertEquals("war",
            engine.compileMustache("invoke_static_04",
                    "{{#invoke 'WAR' class=this m='valueOf'}}{{suffix}}{{/invoke}}")
                    .render(ArchiveType.class));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testInterpolation() {

    MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .omitServiceLoaderConfigurationExtensions()
            .setLocaleSupport(FixedLocaleSupport.from(Locale.ENGLISH))
            .addResolver(new ThisResolver())
            .registerHelper("pretty", new PrettyTimeHelper()).build();

    String expected = new Resources_en().getString("JustNowPastPrefix");
    // JustNow (the first time unit in the default list) has max quantity 1 min
    Calendar now = Calendar.getInstance();
    now.add(Calendar.SECOND, -30);

    assertEquals(expected, engine
            .compileMustache("pretty_cal", "{{pretty this}}").render(now));
    assertEquals(expected,
            engine.compileMustache("pretty_date", "{{pretty this}}")
                    .render(now.getTime()));
    assertEquals(expected,
            engine.compileMustache("pretty_long", "{{pretty this}}")
                    .render(now.getTimeInMillis()));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testRecursiveInvocationLimitExceeded() {

    MapTemplateLocator locator = new MapTemplateLocator(ImmutableMap.of(
            "super", "/n{{<super}}{{/super}}"));
    MustacheEngine engine = MustacheEngineBuilder
            .newBuilder()
            .addTemplateLocator(locator)
            .setProperty(
                    EngineConfigurationKey.TEMPLATE_RECURSIVE_INVOCATION_LIMIT,
                    5).build();

    try {
        engine.getMustache("super").render(null);
        fail("Limit exceeded and no exception thrown");
    } catch (MustacheException e) {
        if (!e.getCode()
                .equals(MustacheProblem.RENDER_TEMPLATE_INVOCATION_RECURSIVE_LIMIT_EXCEEDED)) {
            fail("Invalid problem");
        }
        System.out.println(e.getMessage());
        // else {
        // e.printStackTrace();
        // }
    }
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testSwitchHelperValidation() {

    final MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .registerHelpers(HelpersBuilder.empty().addSwitch().build())
            .build();

    MustacheExceptionAssert
            .expect(MustacheProblem.COMPILE_HELPER_VALIDATION_FAILURE)
            .check(() -> engine.compileMustache(
                    "switch_helper_validation01", "{{switch}}"))
            .check(() -> engine.compileMustache(
                    "switch_helper_validation02",
                    "{{#switch}}{{case \"true\"}}{{/switch}}"))
            .check(() -> engine.compileMustache(
                    "switch_helper_validation03",
                    "{{#switch}}{{#case \"true\"}}{{/case}}{{default \"foo\"}}{{/switch}}"));

}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testCustomListener() {

    MustacheEngine engine = MustacheEngineBuilder
            .newBuilder()
            .addMustacheListener(
                    Minify.customListener(new AbstractMinifier() {

                        @Override
                        public Reader minify(String mustacheName,
                                Reader mustacheContents) {
                            return mustacheName.endsWith("js") ? new StringReader(
                                    "") : mustacheContents;
                        }

                    })).build();

    assertEquals("", engine.compileMustache("mustache.js", "whatever")
            .render(null));
    assertEquals("<html>",
            engine.compileMustache("foo", "<html>").render(null));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testPartial() {
    final MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .addTemplateLocator(new MapTemplateLocator(
                    ImmutableMap.of("foo", "{{this}}")))
            .registerHelper("test", new AbstractHelper() {
                @Override
                public void execute(Options options) {
                    options.partial(
                            options.getParameters().get(0).toString());
                }
            }).build();
    assertEquals("HELLO",
            engine.compileMustache("helper_partial01", "{{test 'foo'}}")
                    .render("HELLO"));
    MustacheExceptionAssert
            .expect(MustacheProblem.RENDER_INVALID_PARTIAL_KEY)
            .check(() -> engine
                    .compileMustache("helper_partial02", "{{test 'bar'}}")
                    .render("HELLO"));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testGetAppendable() {
    MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .registerHelper("test", new AbstractHelper() {
                @Override
                public void execute(Options options) {
                    try {
                        options.getAppendable()
                                .append(options.peek().toString());
                    } catch (IOException e) {
                        throw new RuntimeException(e);
                    }
                }
            }).build();
    assertEquals("HELLO",
            engine.compileMustache("helper_getappendable", "{{test}}")
                    .render("HELLO"));
}
 

import org.trimou.engine.MustacheEngine; //导入依赖的package包/类
@Test
public void testFnAppendable() {
    final StringBuilder builder = new StringBuilder();
    MustacheEngine engine = MustacheEngineBuilder.newBuilder()
            .registerHelper("test", new AbstractHelper() {
                @Override
                public void execute(Options options) {
                    options.fn(builder);
                }
            }).build();
    String literal = "This is /n a foo";
    assertEquals(
            "", engine
                    .compileMustache("helper_fnappendable",
                            "{{#test}}" + literal + "{{/test}}")
                    .render(null));
    assertEquals(literal, builder.toString());
}