Prepare visitor and objects for reporting

src/main/java/cz/cvut/fel/sit/omo/foodchain/channel/ChannelBase.java

@@ -3,6 +3,7 @@ package cz.cvut.fel.sit.omo.foodchain.channel;
 import cz.cvut.fel.sit.omo.foodchain.node.base.NodeBase;
 import cz.cvut.fel.sit.omo.foodchain.operation.Transaction;
 import cz.cvut.fel.sit.omo.foodchain.product.ProductType;
+import cz.cvut.fel.sit.omo.foodchain.reporting.ReportTextVisitor;
 import cz.cvut.fel.sit.omo.foodchain.requirement.Requirement;
 import cz.cvut.fel.sit.omo.foodchain.util.ChannelObserver;
 import cz.cvut.fel.sit.omo.foodchain.util.Observable;
@@ -98,4 +99,8 @@ public abstract class ChannelBase implements Observable {
     public ProductType getProductType() {
         return productType;
     }
+
+    public String accept(ReportTextVisitor visitor){
+        return visitor.visit(this);
+    }
 }

src/main/java/cz/cvut/fel/sit/omo/foodchain/node/base/NodeBase.java

@@ -7,8 +7,8 @@ import cz.cvut.fel.sit.omo.foodchain.operation.*;
 import cz.cvut.fel.sit.omo.foodchain.product.Product;
 import cz.cvut.fel.sit.omo.foodchain.product.ProductState;
 import cz.cvut.fel.sit.omo.foodchain.product.ProductType;
+import cz.cvut.fel.sit.omo.foodchain.reporting.ReportTextVisitor;
 import cz.cvut.fel.sit.omo.foodchain.requirement.Requirement;
-import cz.cvut.fel.sit.omo.foodchain.signature.Signature;
 import cz.cvut.fel.sit.omo.foodchain.signature.SignatureManager;
 import cz.cvut.fel.sit.omo.foodchain.util.ChannelObserver;
 import org.javamoney.moneta.Money;
@@ -226,4 +226,8 @@ public class NodeBase implements ChannelObserver {
         receiveTransactions();
         System.out.println(this.getClass().getSimpleName() + ": " + money.getNumber());
     }
+
+    public String accept(ReportTextVisitor visitor){
+        return visitor.visit(this);
+    }
 }

src/main/java/cz/cvut/fel/sit/omo/foodchain/product/Product.java

@@ -2,9 +2,9 @@ package cz.cvut.fel.sit.omo.foodchain.product;
 
 import cz.cvut.fel.sit.omo.foodchain.operation.Action;
 import cz.cvut.fel.sit.omo.foodchain.operation.OperationBase;
+import cz.cvut.fel.sit.omo.foodchain.reporting.ReportTextVisitor;
 import org.javamoney.moneta.Money;
 
-import javax.money.Monetary;
 import javax.money.MonetaryAmount;
 
 public class Product
@@ -158,4 +158,8 @@ public class Product
     public MonetaryAmount getPrice() { return price; }
 
     public void setPrice(MonetaryAmount price) { this.price = price; }
+
+    public String accept(ReportTextVisitor visitor){
+        return visitor.visit(this);
+    }
 }

src/main/java/cz/cvut/fel/sit/omo/foodchain/reporting/ReportTextFileVisitor.java

@@ -1,19 +0,0 @@
-package cz.cvut.fel.sit.omo.foodchain.reporting;
-
-import cz.cvut.fel.sit.omo.foodchain.channel.ChannelBase;
-import cz.cvut.fel.sit.omo.foodchain.node.base.NodeBase;
-import cz.cvut.fel.sit.omo.foodchain.operation.OperationBase;
-
-public class ReportTextFileVisitor {
-    public void visit(NodeBase node){
-
-    }
-
-    public void visit(OperationBase operationBase){
-
-    }
-
-    public void visit(ChannelBase channel){
-
-    }
-}

src/main/java/cz/cvut/fel/sit/omo/foodchain/reporting/ReportTextVisitor.java

@@ -0,0 +1,22 @@
+package cz.cvut.fel.sit.omo.foodchain.reporting;
+
+import cz.cvut.fel.sit.omo.foodchain.channel.ChannelBase;
+import cz.cvut.fel.sit.omo.foodchain.node.base.NodeBase;
+import cz.cvut.fel.sit.omo.foodchain.operation.OperationBase;
+import cz.cvut.fel.sit.omo.foodchain.product.Product;
+
+public class ReportTextVisitor {
+    public String visit(NodeBase node){
+
+        return null;
+    }
+
+    public String visit(ChannelBase channel){
+
+        return null;
+    }
+
+    public String visit(Product product){
+        return null;
+    }
+}

src/main/java/cz/cvut/fel/sit/omo/foodchain/reporting/ReportingManager.java

@@ -1,4 +1,38 @@
 package cz.cvut.fel.sit.omo.foodchain.reporting;
 
+import cz.cvut.fel.sit.omo.foodchain.FoodChain;
+import cz.cvut.fel.sit.omo.foodchain.pool.PoolDatabase;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.nio.file.FileAlreadyExistsException;
+
 public class ReportingManager {
+
+    public void createFileTextReport(String pathname) {
+        File reportFile = new File(pathname);
+        try {
+            FileWriter fileWriter = new FileWriter(reportFile);
+            if (!reportFile.createNewFile()) {
+                throw new FileAlreadyExistsException(pathname);
+            }
+            fileWriter.write(acceptAllObjects());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+
+    public String acceptAllObjects(){
+        ReportTextVisitor visitor = new ReportTextVisitor();
+        PoolDatabase db = FoodChain.getFactoryManager().getPoolDatabaseInstance();
+        StringBuilder string = new StringBuilder();
+
+        db.getChannelPoolInstance().findAll().forEach(ch -> string.append(ch.accept(visitor)));
+        db.getNodePoolInstance().findAll().forEach(n-> string.append(n.accept(visitor)));
+        db.getProductPoolInstance().findAll().forEach(p -> string.append(p.accept(visitor)));
+
+        return string.toString();
+    }
 }