BKUWorker refactoring

jssessionId 

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@148 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4

1 files changed, 199 insertions, 0 deletions

diff --git a/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractBKUWorker.java b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractBKUWorker.java
new file mode 100644
index 00000000..e10ba8f9
--- /dev/null
+++ b/smccSTAL/src/main/java/at/gv/egiz/bku/smccstal/AbstractBKUWorker.java
@@ -0,0 +1,199 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ *
+ * 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 at.gv.egiz.bku.smccstal;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.util.ArrayList;
+import java.util.List;
+
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+import at.gv.egiz.bku.gui.BKUGUIFacade;
+import at.gv.egiz.smcc.SignatureCard;
+import at.gv.egiz.smcc.util.SMCCHelper;
+import at.gv.egiz.stal.QuitRequest;
+import at.gv.egiz.stal.STALRequest;
+import at.gv.egiz.stal.STALResponse;
+
+/**
+ * Abstract base class for AppletBKUWorker and LocalBKUWorker, 
+ * providing card specific functionality not implemented by AbstractSMCCSTAL
+ * as well as common GUI functionality (action event handling).
+ * <br/>
+ * This class implements SMCCSTALRequestHandler and registers itself as QUIT handler.
+ * 
+ * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
+ */
+public abstract class AbstractBKUWorker extends AbstractSMCCSTAL implements ActionListener, SMCCSTALRequestHandler {
+
+  protected static Log log = LogFactory.getLog(AbstractBKUWorker.class);
+  protected BKUGUIFacade gui;
+  protected List<String> actionCommandList = new ArrayList<String>();
+  protected Boolean actionPerformed = false;
+  protected boolean finished = false;
+
+  public AbstractBKUWorker(BKUGUIFacade gui) {
+    if (gui == null) {
+      throw new NullPointerException("No BKU GUI provided");
+    }
+    this.gui = gui;
+    this.locale = gui.getLocale();
+    addRequestHandler(QuitRequest.class, this);
+  }
+
+  ///////////////////////////////////////////////////////////////////
+  // Common action event handling                                  //
+  ///////////////////////////////////////////////////////////////////
+
+  /**
+   * notifies all registered handlers that an event occured
+   * @param e
+   */
+  @Override
+  public void actionPerformed(ActionEvent e) {
+    log.info("Action: " + e);
+    if (actionCommandList != null) {
+      if (actionCommandList.contains(e.getActionCommand())) {
+        actionOccured();
+      }
+    } else {
+      actionOccured();
+    }
+  }
+  
+  /**
+   * register for notification on action event
+   * @throws java.lang.InterruptedException
+   */
+  protected synchronized void waitForAction() throws InterruptedException {
+    log.info("Waiting for Action");
+    while (!actionPerformed) {
+      wait();
+    }
+    actionPerformed = false;
+  }
+
+  protected synchronized void actionOccured() {
+    log.info("Received Action");
+    actionPerformed = true;
+    notifyAll();
+  }
+  
+  ///////////////////////////////////////////////////////////////////
+  // card specific implementations of AbstractSMCCSTAL             //
+  ///////////////////////////////////////////////////////////////////
+
+  @Override
+  protected boolean waitForCard() {
+    SMCCHelper smccHelper = new SMCCHelper();
+    actionCommandList.clear();
+    actionCommandList.add("cancel");
+    // while no sigcard found or cancel button pressed
+    int oldValue = SMCCHelper.PC_SC_NOT_SUPPORTED; // this is a save default
+    while ((signatureCard == null) && (!actionPerformed)) {
+      switch (smccHelper.getResultCode()) {
+      case SMCCHelper.PC_SC_NOT_SUPPORTED:
+        actionCommandList.clear();
+        actionCommandList.add("ok");
+        gui.showErrorDialog(BKUGUIFacade.ERR_NO_PCSC, null, this, "ok");
+        try {
+          waitForAction();
+        } catch (InterruptedException e) {
+          log.error(e);
+        }
+        return true;
+      case SMCCHelper.TERMINAL_NOT_PRESENT:
+        actionCommandList.clear();
+        actionCommandList.add("ok");
+        gui.showErrorDialog(BKUGUIFacade.ERR_NO_CARDTERMINAL, null, this, "ok");
+        try {
+          waitForAction();
+        } catch (InterruptedException e) {
+          log.error(e);
+        }
+        return true;
+      case SMCCHelper.CARD_NOT_SUPPORTED:
+        if (oldValue != SMCCHelper.CARD_NOT_SUPPORTED) {
+          actionCommandList.clear();
+          actionCommandList.add("cancel");
+          gui.showCardNotSupportedDialog(this, "cancel");
+          oldValue = SMCCHelper.CARD_NOT_SUPPORTED;
+        }
+        break;
+      case SMCCHelper.NO_CARD:
+        if (oldValue != SMCCHelper.NO_CARD) {
+          actionCommandList.clear();
+          actionCommandList.add("cancel");
+          gui.showInsertCardDialog(this, "cancel");
+          oldValue = SMCCHelper.NO_CARD;
+        }
+        break;
+      case SMCCHelper.CARD_FOUND:
+        signatureCard = smccHelper.getSignatureCard(locale);
+        return false;
+      }
+      smccHelper.update(3000);
+    }
+    return signatureCard == null;
+  }
+
+  @Override
+  protected BKUGUIFacade getGUI() {
+    return gui;
+  }
+
+  ///////////////////////////////////////////////////////////////////
+  // SMCCSTALRequestHandler for QUIT requests                      //
+  ///////////////////////////////////////////////////////////////////
+  
+  /**
+   * Handle QUIT requests: set finished true.
+   * @param request a QUIT request
+   * @return null (no response on QUIT)
+   */
+  @Override
+  public STALResponse handleRequest(STALRequest request) {
+    if (request instanceof QuitRequest) {
+      log.info("Setting state to: finished for BKUWorker " + this);
+      finished = true;
+    } else {
+      log.error("Unexpected request to handle: " + request);
+    }
+    return null;
+  }
+
+  /**
+   * No initialization required for QUIT request handlers.
+   * @param sc
+   * @param gui
+   */
+  @Override
+  public void init(SignatureCard sc, BKUGUIFacade gui) {
+  }
+
+  /**
+   * QUIT request handlers do not require a card.
+   * @return false
+   */
+  @Override
+  public boolean requireCard() {
+    return false;
+  }
+}