Add Document#storage for easier usage of the storage system

src/main/java/com/github/derrop/documents/DefaultDocument.java

@@ -1,5 +1,8 @@
 package com.github.derrop.documents;
 
+import com.github.derrop.documents.storage.DocumentStorage;
+import com.github.derrop.documents.storage.SpecificDocumentStorage;
+import com.github.derrop.documents.storage.WrappedSpecificDocumentStorage;
 import com.google.gson.*;
 import com.google.gson.internal.bind.TypeAdapters;
 import com.google.gson.stream.JsonReader;
@@ -721,6 +724,21 @@ public Character getChar(String key, Character def) {
         return this.getChar(key);
     }
 
+    @Override
+    public SpecificDocumentStorage json() {
+        return this.storage(Documents.jsonStorage());
+    }
+
+    @Override
+    public SpecificDocumentStorage yaml() {
+        return this.storage(Documents.yamlStorage());
+    }
+
+    @Override
+    public SpecificDocumentStorage storage(DocumentStorage storage) {
+        return new WrappedSpecificDocumentStorage(this, storage);
+    }
+
     @Override
     public JsonObject toJsonObject() {
         return this.jsonObject;

src/main/java/com/github/derrop/documents/Document.java

@@ -1,5 +1,7 @@
 package com.github.derrop.documents;
 
+import com.github.derrop.documents.storage.DocumentStorage;
+import com.github.derrop.documents.storage.SpecificDocumentStorage;
 import com.google.gson.Gson;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonElement;
@@ -136,4 +138,10 @@ public interface Document {
 
     Character getChar(String key, Character def);
 
+    SpecificDocumentStorage json();
+
+    SpecificDocumentStorage yaml();
+
+    SpecificDocumentStorage storage(DocumentStorage storage);
+
 }

src/main/java/com/github/derrop/documents/Documents.java

@@ -1,5 +1,8 @@
 package com.github.derrop.documents;
 
+import com.github.derrop.documents.storage.DocumentStorage;
+import com.github.derrop.documents.storage.JsonDocumentStorage;
+import com.github.derrop.documents.storage.YamlDocumentStorage;
 import com.google.gson.JsonElement;
 import com.google.gson.JsonObject;
 

src/main/java/com/github/derrop/documents/DocumentStorage.java → src/main/java/com/github/derrop/documents/storage/DocumentStorage.java

@@ -1,4 +1,6 @@
-package com.github.derrop.documents;
+package com.github.derrop.documents.storage;
+
+import com.github.derrop.documents.Document;
 
 import java.io.*;
 import java.nio.charset.StandardCharsets;

src/main/java/com/github/derrop/documents/JsonDocumentStorage.java → src/main/java/com/github/derrop/documents/storage/JsonDocumentStorage.java

@@ -1,5 +1,8 @@
-package com.github.derrop.documents;
+package com.github.derrop.documents.storage;
 
+import com.github.derrop.documents.DefaultDocument;
+import com.github.derrop.documents.Document;
+import com.github.derrop.documents.Documents;
 import com.google.gson.JsonParser;
 
 import java.io.BufferedReader;
@@ -12,9 +15,9 @@ public void write(Document document, Writer writer) {
         DefaultDocument.GSON.toJson(document.toJsonObject(), writer);
     }
 
-    public DefaultDocument read(Reader reader) {
+    public Document read(Reader reader) {
         try (BufferedReader bufferedReader = new BufferedReader(reader)) {
-            return new DefaultDocument().append(JsonParser.parseReader(bufferedReader).getAsJsonObject());
+            return Documents.newDocument(JsonParser.parseReader(bufferedReader).getAsJsonObject());
         } catch (Exception ex) {
             ex.getStackTrace();
         }

src/main/java/com/github/derrop/documents/storage/SpecificDocumentStorage.java

@@ -0,0 +1,24 @@
+package com.github.derrop.documents.storage;
+
+import com.github.derrop.documents.Document;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+public interface SpecificDocumentStorage {
+
+    Document document();
+
+    SpecificDocumentStorage write(OutputStream outputStream);
+
+    SpecificDocumentStorage write(File file);
+
+    SpecificDocumentStorage write(Path path);
+
+    String serializeToString();
+
+    SpecificDocumentStorage write(Writer writer);
+
+}

src/main/java/com/github/derrop/documents/storage/WrappedSpecificDocumentStorage.java

@@ -0,0 +1,53 @@
+package com.github.derrop.documents.storage;
+
+import com.github.derrop.documents.Document;
+
+import java.io.File;
+import java.io.OutputStream;
+import java.io.Writer;
+import java.nio.file.Path;
+
+public class WrappedSpecificDocumentStorage implements SpecificDocumentStorage {
+
+    private final DocumentStorage storage;
+    private final Document document;
+
+    public WrappedSpecificDocumentStorage(Document document, DocumentStorage storage) {
+        this.document = document;
+        this.storage = storage;
+    }
+
+    @Override
+    public Document document() {
+        return this.document;
+    }
+
+    @Override
+    public SpecificDocumentStorage write(OutputStream outputStream) {
+        this.storage.write(this.document, outputStream);
+        return this;
+    }
+
+    @Override
+    public SpecificDocumentStorage write(File file) {
+        this.storage.write(this.document, file);
+        return this;
+    }
+
+    @Override
+    public SpecificDocumentStorage write(Path path) {
+        this.storage.write(this.document, path);
+        return this;
+    }
+
+    @Override
+    public String serializeToString() {
+        return this.storage.toString(this.document);
+    }
+
+    @Override
+    public SpecificDocumentStorage write(Writer writer) {
+        this.storage.write(this.document, writer);
+        return this;
+    }
+}

src/main/java/com/github/derrop/documents/YamlDocumentStorage.java → src/main/java/com/github/derrop/documents/storage/YamlDocumentStorage.java

@@ -1,5 +1,7 @@
-package com.github.derrop.documents;
+package com.github.derrop.documents.storage;
 
+import com.github.derrop.documents.DefaultDocument;
+import com.github.derrop.documents.Document;
 import com.google.gson.JsonElement;
 import org.yaml.snakeyaml.DumperOptions;
 import org.yaml.snakeyaml.Yaml;