Add model for OPML parsing

readropslibrary/src/main/java/com/readrops/readropslibrary/opml/OpmlParser.kt

@@ -0,0 +1,28 @@
+package com.readrops.readropslibrary.opml
+
+import android.content.Context
+import android.net.Uri
+import com.readrops.readropslibrary.opml.model.Opml
+import com.readrops.readropslibrary.utils.LibUtils
+import io.reactivex.Single
+import org.simpleframework.xml.Serializer
+import org.simpleframework.xml.core.Persister
+
+class OpmlParser {
+
+    companion object {
+        @JvmStatic
+        fun parse(uri: Uri, context: Context): Single<Opml> {
+            return Single.create { emitter ->
+                val fileString = LibUtils.fileToString(uri, context)
+                val serializer: Serializer = Persister()
+
+                val opml: Opml = serializer.read(Opml::class.java, fileString)
+
+                emitter.onSuccess(opml)
+            }
+        }
+    }
+
+
+}

readropslibrary/src/main/java/com/readrops/readropslibrary/opml/model/Body.kt

@@ -0,0 +1,10 @@
+package com.readrops.readropslibrary.opml.model
+
+import org.simpleframework.xml.ElementList
+import org.simpleframework.xml.Root
+
+@Root(name = "body", strict = false)
+data class Body(@field:ElementList(inline = true, required = true) var outlines: List<Outline>?) {
+
+    constructor() : this(null)
+}

readropslibrary/src/main/java/com/readrops/readropslibrary/opml/model/Head.kt

@@ -0,0 +1,10 @@
+package com.readrops.readropslibrary.opml.model
+
+import org.simpleframework.xml.Element
+import org.simpleframework.xml.Root
+
+@Root(name = "head", strict = false)
+data class Head(@field:Element(required = false) var title: String?) {
+
+    constructor() : this(null)
+}

readropslibrary/src/main/java/com/readrops/readropslibrary/opml/model/Opml.kt

@@ -0,0 +1,14 @@
+package com.readrops.readropslibrary.opml.model
+
+import org.simpleframework.xml.Attribute
+import org.simpleframework.xml.Element
+import org.simpleframework.xml.Root
+
+@Root(name = "opml", strict = false)
+data class Opml(@field:Attribute(required = true) var version: String?,
+                @field:Element(required = true) var head: Head?,
+                @field:Element(required = true) var body: Body?) {
+
+    constructor() : this(null, null, null)
+
+}

readropslibrary/src/main/java/com/readrops/readropslibrary/opml/model/Outline.kt

@@ -0,0 +1,26 @@
+package com.readrops.readropslibrary.opml.model
+
+import org.simpleframework.xml.Attribute
+import org.simpleframework.xml.ElementList
+import org.simpleframework.xml.Root
+
+@Root(name = "outline", strict = false)
+data class Outline(@field:Attribute(required = false) var title: String?,
+                   @field:Attribute(required = false) var text: String?,
+                   @field:Attribute(required = false) var type: String?,
+                   @field:Attribute(required = false) var xmlUrl: String?,
+                   @field:Attribute(required = false) var htmlUrl: String?,
+                   @field:ElementList(inline = true, required = false) var outlines: List<Outline>?) {
+
+    constructor() : this(
+            null,
+            null,
+            null,
+            null,
+            null,
+            null)
+
+    fun hasSubElements(): Boolean {
+        return !outlines.isNullOrEmpty()
+    }
+}

readropslibrary/src/main/java/com/readrops/readropslibrary/utils/LibUtils.java

@@ -1,5 +1,9 @@
 package com.readrops.readropslibrary.utils;
 
+import android.content.Context;
+import android.net.Uri;
+
+import java.io.FileNotFoundException;
 import java.io.InputStream;
 import java.util.Scanner;
 
@@ -28,6 +32,10 @@ public final class LibUtils {
         return scanner.hasNext() ? scanner.next() : "";
     }
 
+    public static String fileToString(Uri uri, Context context) throws FileNotFoundException {
+        InputStream  inputStream = context.getContentResolver().openInputStream(uri);
 
+        return inputStreamToString(inputStream);
+    }
 
 }