diff src/com/five_ten_sg/connectbot/transport/TransportFactory.java @ 0:0ce5cc452d02

initial version
author Carl Byington <carl@five-ten-sg.com>
date Thu, 22 May 2014 10:41:19 -0700
parents
children f3b3bbd227b8
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/com/five_ten_sg/connectbot/transport/TransportFactory.java	Thu May 22 10:41:19 2014 -0700
@@ -0,0 +1,138 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2007 Kenny Root, Jeffrey Sharkey
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.five_ten_sg.connectbot.transport;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import com.five_ten_sg.connectbot.bean.HostBean;
+import com.five_ten_sg.connectbot.util.HostDatabase;
+import android.content.Context;
+import android.net.Uri;
+import android.util.Log;
+
+
+/**
+ * @author Kenny Root
+ *
+ */
+public class TransportFactory {
+    private static final String TAG = "ConnectBot.TransportFactory";
+
+    private static String[] transportNames = {
+        SSH.getProtocolName(),
+        Telnet.getProtocolName(),
+        Local.getProtocolName(),
+    };
+
+    /**
+     * @param protocol
+     * @return
+     */
+    public static AbsTransport getTransport(String protocol) {
+        if (SSH.getProtocolName().equals(protocol)) {
+            return new SSH();
+        }
+        else if (Telnet.getProtocolName().equals(protocol)) {
+            return new Telnet();
+        }
+        else if (Local.getProtocolName().equals(protocol)) {
+            return new Local();
+        }
+        else {
+            return null;
+        }
+    }
+
+    public static Uri getUri(String scheme, String input) {
+        Log.d("TransportFactory", String.format(
+                  "Attempting to discover URI for scheme=%s on input=%s", scheme,
+                  input));
+
+        if (SSH.getProtocolName().equals(scheme))
+            return SSH.getUri(input);
+        else if (Telnet.getProtocolName().equals(scheme))
+            return Telnet.getUri(input);
+        else if (Local.getProtocolName().equals(scheme)) {
+            Log.d("TransportFactory", "Got to the local parsing area");
+            return Local.getUri(input);
+        }
+        else
+            return null;
+    }
+
+    public static String[] getTransportNames() {
+        return transportNames;
+    }
+
+    public static boolean isSameTransportType(AbsTransport a, AbsTransport b) {
+        if (a == null || b == null)
+            return false;
+
+        return a.getClass().equals(b.getClass());
+    }
+
+    public static boolean canForwardPorts(String protocol) {
+        // TODO uh, make this have less knowledge about its children
+        if (SSH.getProtocolName().equals(protocol)) {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    /**
+     * @param protocol text name of protocol
+     * @param context
+     * @return expanded format hint
+     */
+    public static String getFormatHint(String protocol, Context context) {
+        if (SSH.getProtocolName().equals(protocol)) {
+            return SSH.getFormatHint(context);
+        }
+        else if (Telnet.getProtocolName().equals(protocol)) {
+            return Telnet.getFormatHint(context);
+        }
+        else if (Local.getProtocolName().equals(protocol)) {
+            return Local.getFormatHint(context);
+        }
+        else {
+            return AbsTransport.getFormatHint(context);
+        }
+    }
+
+    /**
+     * @param hostdb Handle to HostDatabase
+     * @param uri URI to target server
+     * @return HostBean or null
+     */
+    public static HostBean findHost(HostDatabase hostdb, Uri uri) {
+        AbsTransport transport = getTransport(uri.getScheme());
+        Map<String, String> selection = new HashMap<String, String>();
+        transport.getSelectionArgs(uri, selection);
+
+        if (selection.size() == 0) {
+            Log.e(TAG, String.format("Transport %s failed to do something useful with URI=%s",
+                                     uri.getScheme(), uri.toString()));
+            throw new IllegalStateException("Failed to get needed selection arguments");
+        }
+
+        return hostdb.findHost(selection);
+    }
+}