fix (codeorg): small code cleanup

.idea/misc.xml

@@ -6,4 +6,5 @@
   <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" default="false" assert-keyword="true" jdk-15="true" project-jdk-name="1.7" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
+  <component name="WebServicesPlugin" addRequiredLibraries="true" />
 </project>

src/se/vidstige/jadb/ITransportFactory.java

@@ -0,0 +1,10 @@
+package se.vidstige.jadb;
+
+import java.io.IOException;
+
+/**
+ * Created by Törcsi on 2016. 03. 01..
+ */
+public interface ITransportFactory {
+    public Transport createTransport() throws IOException;
+}

src/se/vidstige/jadb/JadbConnection.java

@@ -5,15 +5,13 @@ import java.net.Socket;
 import java.util.ArrayList;
 import java.util.List;
 
-public class JadbConnection {
+public class JadbConnection implements ITransportFactory{
 	
 	private final String host;
 	private final int port;
 	
 	private static final int DEFAULTPORT = 5037;
 	
-	private final Transport main;
-	
 	public JadbConnection() throws IOException
 	{
 		this("localhost", DEFAULTPORT);
@@ -23,25 +21,17 @@ public class JadbConnection {
 	{
 		this.host = host;
 		this.port = port;
-				
-		main = createTransport();
 	}
 
-	protected Transport getMain(){
-		return main;
-	}
-
-	private Transport createTransport() throws IOException {
+	public Transport createTransport() throws IOException {
 		return new Transport(new Socket(host, port));
 	}
 
-	public Transport getFreshTransport() throws IOException {
-		return createTransport();
-	}
-
 	public void getHostVersion() throws IOException, JadbException {
+		Transport main = createTransport();
 		main.send("host:version");
 		main.verifyResponse();
+		main.close();
 	}
 
 	public List<JadbDevice> getDevices() throws IOException, JadbException
@@ -70,8 +60,4 @@ public class JadbConnection {
     public JadbDevice getAnyDevice() {
         return JadbDevice.createAny(this);
     }
-
-    public void close() throws IOException {
-        main.close();
-    }
 }

src/se/vidstige/jadb/JadbDevice.java

@@ -7,28 +7,26 @@ import java.util.List;
 public class JadbDevice {
 	private final String serial;
 	private Transport transport;
-    private final JadbConnection connection;
+    private final ITransportFactory tFactory;
 
-	JadbDevice(String serial, String type, JadbConnection connection) {
+	JadbDevice(String serial, String type, ITransportFactory tFactory) {
 		this.serial = serial;
-        this.connection = connection;
-		this.transport = connection.getMain();
+        this.tFactory = tFactory;
 	}
 
     static JadbDevice createAny(JadbConnection connection) { return new JadbDevice(connection); }
 
-    private JadbDevice(JadbConnection connection)
+    private JadbDevice(ITransportFactory tFactory)
     {
         serial = null;
-        this.connection = connection;
-        this.transport = connection.getMain();
+        this.tFactory = tFactory;
     }
 
-    private void ensureTransportIsSelected() throws IOException, JadbException {
-            selectTransport();
-    }
-
-    private void selectTransport() throws IOException, JadbException {
+    private void getTransport() throws IOException, JadbException {
+        if(transport!=null && !transport.isClosed()){
+            transport.close();
+        }
+        transport = tFactory.createTransport();
         if (serial == null)
         {
             transport.send("host:transport-any");
@@ -48,7 +46,7 @@ public class JadbDevice {
 	}
 
 	public String getState() throws IOException, JadbException {
-        ensureTransportIsSelected();
+        getTransport();
 		transport.send("get-state");
 		transport.verifyResponse();
 		return transport.readString();
@@ -57,20 +55,17 @@ public class JadbDevice {
 	public String executeShell(String command, String ... args) throws IOException, JadbException {
         execShell(command, args);
         String ret = this.transport.readResponse();
-        reOpenTransport();
         return ret;
 	}
 
     public byte[] executeShellGetBytearr(String command, String ... args) throws IOException, JadbException {
         execShell(command, args);
         byte[] ret = this.transport.readResponseAsArray();
-        reOpenTransport();
         return ret;
     }
 
     private void execShell(String command, String[] args) throws IOException, JadbException {
-        ensureTransportIsSelected();
-
+        getTransport();
         StringBuilder shellLine = new StringBuilder(command);
         for (String arg : args)
         {
@@ -83,7 +78,7 @@ public class JadbDevice {
     }
 
     public List<RemoteFile> list(String remotePath) throws IOException, JadbException {
-        ensureTransportIsSelected();
+        getTransport();
         SyncTransport sync  = transport.startSync();
         sync.send("LIST", remotePath);
 
@@ -92,7 +87,6 @@ public class JadbDevice {
         {
             result.add(dent);
         }
-        reOpenTransport();
         return result;
     }
 
@@ -102,7 +96,7 @@ public class JadbDevice {
     }
 
     public void push(InputStream source, long lastModified, int mode, RemoteFile remote) throws IOException, JadbException {
-        ensureTransportIsSelected();
+        getTransport();
         SyncTransport sync  = transport.startSync();
         sync.send("SEND", remote.getPath() + "," + Integer.toString(mode));
 
@@ -110,7 +104,6 @@ public class JadbDevice {
 
         sync.sendStatus("DONE", (int)lastModified);
         sync.verifyStatus();
-        reOpenTransport();
     }
 
     public void push(File local, RemoteFile remote) throws IOException, JadbException {
@@ -120,12 +113,11 @@ public class JadbDevice {
 	}
 
     public void pull(RemoteFile remote, OutputStream destination) throws IOException, JadbException {
-        ensureTransportIsSelected();
+        getTransport();
         SyncTransport sync = transport.startSync();
         sync.send("RECV", remote.getPath());
 
         sync.readChunksTo(destination);
-        reOpenTransport();
     }
 
     public void pull(RemoteFile remote, File local) throws IOException, JadbException {
@@ -138,11 +130,6 @@ public class JadbDevice {
 		transport.send(command);
         transport.verifyResponse();
 	}
-
-    private void reOpenTransport() throws IOException {
-        transport.close();
-        transport = connection.getFreshTransport();
-    }
 	
 	@Override
 	public String toString()

src/se/vidstige/jadb/Transport.java

@@ -11,6 +11,11 @@ class Transport {
 
 	private final OutputStream outputStream;
 	private final InputStream inputStream;
+	private boolean closed=false;
+
+	public boolean isClosed(){
+		return closed;
+	}
 
 	private Transport(OutputStream outputStream, InputStream inputStream) {
 		this.outputStream = outputStream;
@@ -71,6 +76,7 @@ class Transport {
     public void close() throws IOException {
         inputStream.close();
         outputStream.close();
+		closed = true;
     }
 
 	private byte[] repairTransportedArray(byte[] encoded) {