Adds a Utils class with functions that are useful for Media Stream Handler and Media Session Handler (#17)

Author: dsilhavy

.idea/compiler.xml

@@ -13,7 +13,7 @@ android {
         minSdk 29
         targetSdk 32
         versionCode 1
-        versionName "1.0.1"
+        versionName "1.0.2"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -38,7 +38,7 @@ publishing {
         release(MavenPublication) {
             groupId = 'com.fivegmag'
             artifactId = 'a5gmscommonlibrary'
-            version = '1.0.1'
+            version = '1.0.2'
 
             afterEvaluate {
                 from components.release
@@ -65,4 +65,8 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+
+    //Retrofit
+    def retrofit_version = "2.9.0"
+    implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
 }

.idea/misc.xml

@@ -0,0 +1,83 @@
+package com.fivegmag.a5gmscommonlibrary.helpers
+
+import java.text.SimpleDateFormat
+import java.time.Duration
+import java.util.Date
+import java.util.Random
+import java.util.TimeZone
+import okhttp3.Headers
+
+class Utils {
+
+    fun getCurrentTimestamp(): Long {
+        return System.currentTimeMillis();
+    }
+
+    fun convertTimestampToXsDateTime(timestampInMillis: Long): String {
+        // Create a Date object using the provided timestamp
+        val date = Date(timestampInMillis)
+
+        // Create a SimpleDateFormat object to format the date
+        val dateFormat = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
+        dateFormat.timeZone = TimeZone.getTimeZone("UTC")
+
+        // Format the date to xs:datetime string
+        return dateFormat.format(date)
+    }
+
+    fun getCurrentXsDateTime(): String {
+        val currentTimestamp = getCurrentTimestamp()
+
+        return convertTimestampToXsDateTime(currentTimestamp)
+    }
+
+    fun millisecondsToISO8601(milliseconds: Long): String? {
+        // Create a Duration object from milliseconds
+        val duration: Duration = Duration.ofMillis(milliseconds)
+
+        // Extract the components from the duration
+        val years: Long = duration.toDays() / 365
+        val days: Long = duration.toDays() % 365
+        val hours: Long = duration.toHours() % 24
+        val minutes: Long = duration.toMinutes() % 60
+        val seconds: Long = duration.seconds % 60
+
+        // Construct the ISO 8601 period string
+        return "P" + years + "Y" + days + "D" +
+                "T" + hours + "H" + minutes + "M" + seconds + "S"
+    }
+
+    fun generateRandomFloat(): Float {
+        val random = Random()
+        return random.nextFloat() * 100.0f
+    }
+
+    fun addTrailingSlashIfNeeded(input: String): String {
+        return if (!input.endsWith("/")) {
+            "$input/"
+        } else {
+            input
+        }
+    }
+
+    fun hasResponseChanged(
+        headers: Headers,
+        previousResponseHeaders: Headers?
+    ): Boolean {
+        if (previousResponseHeaders == null) {
+            return true
+        }
+        val headersToValidate = arrayOf("last-modified", "etag")
+
+        return headersToValidate.all { header ->
+            hasHeaderChanged(
+                headers.get(header),
+                previousResponseHeaders.get(header)
+            )
+        }
+    }
+
+    private fun hasHeaderChanged(headerA: String?, headerB: String?): Boolean {
+        return headerA == null || headerB == null || headerA != headerB
+    }
+}