Add inline template to TemplateEngine

With this commit, TemplateEngine is able to initialize a Template
instance from a template string without having to creating a template
file.

Upgrade github checkout action version.

.github/workflows/build.yml

@@ -16,13 +16,14 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v3
       with:
-        java-version: 1.8
+        distribution: 'adopt'
+        java-version: '8'
     - name: Cache Gradle packages
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ~/.gradle/caches

.github/workflows/gradle-wrapper-validation.yml

@@ -8,5 +8,5 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: gradle/wrapper-validation-action@v1

.github/workflows/release.yml

@@ -14,13 +14,14 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
     - name: Set up JDK 1.8
-      uses: actions/setup-java@v1
+      uses: actions/setup-java@v3
       with:
-        java-version: 1.8
+        distribution: 'adopt'
+        java-version: '8'
     - name: Cache Gradle packages
-      uses: actions/cache@v2
+      uses: actions/cache@v3
       with:
         path: |
           ~/.gradle/caches

docs/message.md

@@ -49,6 +49,8 @@ engine implementations:
 > In the code examples below, we will assume that FreeMarker as been selected as template engine implementation.
 > See [how to select the template engine implementation](#select-your-template-engine-implementation).
 
+#### Template file
+
 First you need to define your message template file. Here `src/main/resources/templates/simple.ftl`:
 ```
 <messageML>Hello, ${name}!</messageML>
@@ -125,5 +127,22 @@ dependencies {
 > :warning: If multiple implementations found in classpath, an exception is throw in order to help you to define which one
 > your project really needs to use.
 
+
+#### Inline template string
+
+Simple template can be created as an inline template. Take the same example above, simply pass the template string to the function, such like
+
+```java
+public class Example {
+
+  public static void main(String[] args) {
+      final SymphonyBdk bdk = new SymphonyBdk(loadFromClasspath("/config.yaml"));
+      final Template template = bdk.messages().templates().newTemplateFromString("<messageML>Hello, ${name}!</messageML>");
+      final String content = template.process(Collections.singletonMap("name", "Freemarker"));
+      log.info(content);
+  }
+}
+```
+
 ----
 [Home :house:](./index.md)

symphony-bdk-bom/build.gradle

@@ -16,9 +16,9 @@ repositories {
 
 dependencies {
     // import Spring Boot's BOM
-    api platform('org.springframework.boot:spring-boot-dependencies:2.7.3')
+    api platform('org.springframework.boot:spring-boot-dependencies:2.7.5')
     // import Jackson's BOM
-    api platform('com.fasterxml.jackson:jackson-bom:2.13.2.20220328')
+    api platform('com.fasterxml.jackson:jackson-bom:2.13.4.20221013')
     // define all our dependencies versions
     constraints {
         // Internal modules dependencies (Keep them first)

symphony-bdk-examples/bdk-core-examples/src/main/java/com/symphony/bdk/examples/TemplateExampleMain.java

@@ -28,5 +28,16 @@ public static void main(String[] args) throws Exception {
 
     // display processed template content
     log.info(content);
+
+    // load inline template
+    final Template inlineTemplate = bdk.messages().templates().newTemplateFromString("<messageML>\n"
+        + "    This is a complex message, that supports ${name} templating\n"
+        + "</messageML>");
+
+    // process template with some vars and retrieve content
+    final String inlineContent = inlineTemplate.process(Collections.singletonMap("name", "Freemarker"));
+
+    // display processed template content
+    log.info(inlineContent);
   }
 }