StateMachine updates

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-over/trunk@22 174cde9d-5d70-4d2a-aa98-46368bc2aaf7

6 files changed, 46 insertions, 494 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/BKUSelectionComposite.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/BKUSelectionComposite.java
index 70282202..84b38a07 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/BKUSelectionComposite.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/BKUSelectionComposite.java
@@ -116,6 +116,7 @@ public class BKUSelectionComposite extends Composite implements StateComposite {
 	 * Create the composite.
 	 * @param parent
 	 * @param style
+	 * @param state 
 	 */
 	public BKUSelectionComposite(Composite parent, int style, BKUSelectionState state) {
 		super(parent, style);
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/MainWindow.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/MainWindow.java
index 088afe3c..96195780 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/MainWindow.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/components/MainWindow.java
@@ -16,32 +16,33 @@
 package at.asit.pdfover.gui.components;
 
 // Imports
-import org.eclipse.swt.widgets.Button;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Shell;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.eclipse.swt.widgets.Composite;
+import java.util.HashMap;
+import java.util.Map;
+
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.CLabel;
 import org.eclipse.swt.custom.StackLayout;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
-import org.eclipse.swt.layout.FormLayout;
-import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.FormAttachment;
-import java.lang.Class;
-import java.util.HashMap;
-import java.util.Map;
+import org.eclipse.swt.layout.FormData;
+import org.eclipse.swt.layout.FormLayout;
+import org.eclipse.swt.widgets.Button;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Shell;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import at.asit.pdfover.gui.components.main_behavior.ConfigOpenEnabled;
 import at.asit.pdfover.gui.components.main_behavior.ConfigOpenPositionEnabled;
 import at.asit.pdfover.gui.components.main_behavior.MainWindowAllDisabled;
 import at.asit.pdfover.gui.components.main_behavior.MainWindowBehavior;
 import at.asit.pdfover.gui.components.main_behavior.OnlyConfigEnabled;
-import at.asit.pdfover.gui.workflow.StateMachineImpl;
 import at.asit.pdfover.gui.workflow.State;
+import at.asit.pdfover.gui.workflow.StateMachine;
+import at.asit.pdfover.gui.workflow.StateMachineImpl;
 import at.asit.pdfover.gui.workflow.states.BKUSelectionState;
 import at.asit.pdfover.gui.workflow.states.DataSourceSelectionState;
 import at.asit.pdfover.gui.workflow.states.LocalBKUState;
@@ -71,7 +72,7 @@ public class MainWindow {
 
 		@Override
 		public void widgetSelected(SelectionEvent e) {
-			MainWindow.this.workflow.setWorkflowState(new DataSourceSelectionState());
+			MainWindow.this.stateMachine.setState(new DataSourceSelectionState());
 		}
 
 		@Override
@@ -88,7 +89,7 @@ public class MainWindow {
 	private CLabel lbl_status;
 	private Composite container;
 	private StackLayout stack;
-	private StateMachineImpl workflow;
+	private StateMachine stateMachine;
 	private Button btn_sign;
 	
 	/**
@@ -133,9 +134,9 @@ public class MainWindow {
 	
 	/**
 	 * Default contsructor
-	 * @param workflow The main workflow
+	 * @param stateMachine The main workflow
 	 */
-	public MainWindow(StateMachineImpl workflow) {
+	public MainWindow(StateMachine stateMachine) {
 		super();
 		
 		this.behavior.put(PrepareConfigurationState.class, new MainWindowAllDisabled());
@@ -152,7 +153,7 @@ public class MainWindow {
 		
 		this.behavior.put(BKUSelectionState.class, new ConfigOpenPositionEnabled());
 		
-		this.workflow = workflow;
+		this.stateMachine = stateMachine;
 	}
 
 	/**
@@ -308,7 +309,7 @@ public class MainWindow {
 	 * Update MainWindow to fit new status
 	 */
 	public void UpdateNewState() {
-		State state = this.workflow.getState();
+		State state = this.stateMachine.getState();
 		
 		log.debug("Updating MainWindow state for : " + state.toString());
 		
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java
index b315b9d2..92505d19 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachine.java
@@ -26,13 +26,20 @@ public interface StateMachine {
 	 * @return the ConfigProvider
 	 */
 	public ConfigProvider getConfigProvider();
-	
+
 	/**
 	 * Get the container Composite
 	 * @return the container Composite
 	 */
 	public Composite getComposite();
 
+	/**
+	 * Create a new Composite
+	 * @param compositeClass The class of the Composite to create
+	 * @return the new Composite
+	 */
+	public <T> T createComposite(Class<T> compositeClass);
+
 	//public void display(Composite composite)
 	/**
 	 * Get the Status
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachineImpl.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachineImpl.java
index 990ff00c..8549007c 100644
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachineImpl.java
+++ b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/StateMachineImpl.java
@@ -20,13 +20,17 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.File;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
 import java.util.Properties;
 
+import org.eclipse.swt.SWT;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Shell;
 
+import at.asit.pdfover.gui.components.BKUSelectionComposite;
 import at.asit.pdfover.gui.components.MainWindow;
 import at.asit.pdfover.gui.workflow.states.BKUSelectionState;
 import at.asit.pdfover.gui.workflow.states.DataSourceSelectionState;
@@ -81,7 +85,7 @@ public class StateMachineImpl implements StateMachine {
 	 * 
 	 * @param state
 	 */
-	public void setWorkflowState(State state) {
+	public void setState(State state) {
 		if (this.state != state && state != null) {
 			this.state = state;
 
@@ -223,6 +227,18 @@ public class StateMachineImpl implements StateMachine {
 		return this.container;
 	}
 
+	@Override
+	public <T> T createComposite(Class<T> compositeClass) {
+		T composite = null;
+		try {
+			Constructor<T> constructor = compositeClass.getDeclaredConstructor(Composite.class, int.class, BKUSelectionState.class);
+			composite = constructor.newInstance(getComposite(), SWT.RESIZE, this);
+		} catch (Exception e) {
+			log.error("Could not create Composite for Class " + compositeClass.getName(), e);
+		}
+		return composite;
+	}
+
 	/**
 	 * Only returns a shell if one was already created ...
 	 * 
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/Workflow.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/Workflow.java
deleted file mode 100644
index 48e57f50..00000000
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/Workflow.java
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://joinup.ec.europa.eu/software/page/eupl
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- */
-package at.asit.pdfover.gui.workflow;
-
-//Imports
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.io.File;
-import java.util.Properties;
-
-import org.eclipse.swt.widgets.Composite;
-import org.eclipse.swt.widgets.Control;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Shell;
-
-import at.asit.pdfover.gui.components.MainWindow;
-import at.asit.pdfover.gui.workflow.states.BKUSelectionState;
-import at.asit.pdfover.gui.workflow.states.DataSourceSelectionState;
-import at.asit.pdfover.gui.workflow.states.PositioningState;
-import at.asit.pdfover.gui.workflow.states.PrepareConfigurationState;
-import at.asit.pdfover.gui.workflow.states.BKUSelectionState.BKUS;
-import at.asit.pdfover.signator.Signator;
-import at.asit.pdfover.signator.SignatureParameter;
-import at.asit.pdfover.signator.Signer;
-
-/**
- * Workflow holds logical state of signing process and updates the current
- * logical state
- */
-public class Workflow {
-
-	/**
-	 * SFL4J Logger instance
-	 **/
-	private static final Logger log = LoggerFactory.getLogger(Workflow.class);
-
-	/**
-	 * Default constructor
-	 * 
-	 * @param cmdLineArgs
-	 */
-	public Workflow(String[] cmdLineArgs) {
-		setCmdLineAargs(cmdLineArgs);
-	}
-
-	/**
-	 * @uml.property name="state"
-	 * @uml.associationEnd multiplicity="(1 1)" aggregation="shared"
-	 *                     inverse="workflow1:at.asit.pdfover.gui.workflow.WorkflowState"
-	 */
-	private WorkflowState state = new PrepareConfigurationState();
-
-	/**
-	 * Getter of the property <tt>state</tt>
-	 * 
-	 * @return Returns the state.
-	 * @uml.property name="state"
-	 */
-	public WorkflowState getState() {
-		return this.state;
-	}
-
-	/**
-	 * Sets the workflow state This method should be used to let the user jump
-	 * around between states. This Method also resets certain properties defined
-	 * by later states then state
-	 * 
-	 * @param state
-	 */
-	public void setWorkflowState(WorkflowState state) {
-		if (this.state != state && state != null) {
-			this.state = state;
-
-			if (state instanceof PositioningState) {
-				// User jumps to positioning state !
-				// restore possible default for bku selection / forget BKU
-				// selection
-				this.setSelectedBKU(PrepareConfigurationState
-						.readSelectedBKU(this.getConfigurationValues()));
-				// forget position
-				this.getParameter().setSignaturePosition(null);
-			} else if (state instanceof BKUSelectionState) {
-				// User jumps to bku selection state !
-				// forget bku selection
-				this.setSelectedBKU(BKUS.NONE);
-			} else if (state instanceof DataSourceSelectionState) {
-				// User jumps to data source selection state !
-				// forget bku selection / restore possible default for bku
-				// selection
-				this.setSelectedBKU(PrepareConfigurationState
-						.readSelectedBKU(this.getConfigurationValues()));
-				// forget position / restore possible default for position
-				this.getParameter().setSignaturePosition(
-						PrepareConfigurationState.readDefinedPosition(this
-								.getConfigurationValues()));
-				// forget data source selection
-				this.setDataSource(null);
-			}
-
-			this.update();
-		}
-	}
-
-	/**
-	 * Update Workflow logic and let state machine do its job...
-	 */
-	public void update() {
-		WorkflowState next = null;
-		while (this.state != null) {
-			this.state.update(this);
-			if (this.mainWindow != null && !this.mainWindow.getShell().isDisposed()) {
-				log.debug("Allowing MainWindow to update its state for " + this.state.toString());
-				this.mainWindow.UpdateNewState();
-				this.mainWindow.doLayout();
-			}
-			next = this.state.nextState();
-			if (next == this.state) {
-				break;
-			}
-			// this.state.hideGUI();
-			log.debug("Changing state from: " + this.state.toString() + " to "
-					+ next.toString());
-			this.state = next;
-		}
-		if (this.state != null) {
-			this.setCurrentStateMessage(this.state.toString());
-		} else {
-			this.setCurrentStateMessage("");
-		}
-	}
-
-	/**
-	 * Invoke Update in UI (Main) Thread
-	 */
-	public void InvokeUpdate() {
-		if(this.display != null) {
-			this.display.asyncExec(new Runnable() {
-				
-				@Override
-				public void run() {
-					Workflow.this.update();
-				}
-			});
-		}
-	}
-	
-	private Display display = null;
-
-	private Shell shell = null;
-
-	private Composite container = null;
-
-	private MainWindow mainWindow = null;
-
-	/**
-	 * Helper method for developing
-	 * 
-	 * @param value
-	 */
-	public void setCurrentStateMessage(String value) {
-		if (this.mainWindow != null) {
-			this.mainWindow.setStatus(value);
-		}
-	}
-
-	/**
-	 * Used by active workflow state to show its own gui component
-	 * 
-	 * @param ctrl
-	 */
-	public void setTopControl(final Control ctrl) {
-		this.mainWindow.setTopControl(ctrl);
-	}
-
-	private void createMainWindow() {
-		this.display = Display.getDefault();
-
-		this.mainWindow = new MainWindow(this);
-
-		this.mainWindow.open();
-
-		this.shell = this.mainWindow.getShell();
-
-		this.container = this.mainWindow.getContainer();
-
-		this.shell.open();
-		this.shell.layout();
-	}
-
-	/**
-	 * Gets the Shell for drawing the ui
-	 * 
-	 * @return Composite
-	 */
-	public Composite getComposite() {
-		// Main window will be build on first call
-		// returns SWT Composite container for states to draw their GUI
-
-		if (this.container == null) {
-			this.createMainWindow();
-		}
-
-		if (this.container == null) {
-			// TODO throw Exception...
-		}
-
-		return this.container;
-	}
-
-	/**
-	 * Only returns a shell if one was already created ...
-	 * 
-	 * @return
-	 */
-	private Shell nonCreatingGetShell() {
-		return this.shell;
-	}
-
-	/**
-	 * Exists the Workflow
-	 */
-	public void exitWorkflow() {
-		this.shell.dispose();
-	}
-
-	/**
-	 * Only returns a shell if one was already created ...
-	 * 
-	 * @return
-	 */
-	private Display nonCreatingGetDisplay() {
-		return this.display;
-	}
-
-	/**
-	 * Workflow main entrance point
-	 */
-	public void start() {
-		// Call update to start processing ...
-		this.update();
-
-		// if a user interaction is required we have a shell ...
-		Shell shell = this.nonCreatingGetShell();
-		Display display = this.nonCreatingGetDisplay();
-
-		if (shell != null && display != null) {
-			while (!shell.isDisposed()) {
-				if (!display.readAndDispatch()) {
-					display.sleep();
-				}
-			}
-			display.dispose();
-		}
-	}
-
-	// Data Section
-	// =============================================================================
-
-	// Command Line Arguments
-	// -------------------------------------------------------
-	private String[] cmdLineArgs = new String[] {};
-
-	/**
-	 * sets the command line arguments
-	 * 
-	 * @param cmdLineArgs
-	 */
-	private void setCmdLineAargs(String[] cmdLineArgs) {
-		this.cmdLineArgs = cmdLineArgs;
-	}
-
-	/**
-	 * Gets the command line arguments
-	 * 
-	 * @return the command line arguments
-	 */
-	public String[] getCmdArgs() {
-		return this.cmdLineArgs;
-	}
-
-	// Key Value String properties
-	// -------------------------------------------------------
-	private Properties configurationValues = new Properties();
-
-	/**
-	 * Gets the persistent state
-	 * 
-	 * @return the persistent state
-	 */
-	public Properties getConfigurationValues() {
-		return this.configurationValues;
-	}
-
-	// Data source
-	// -------------------------------------------------------
-	private File dataSource = null;
-
-	/**
-	 * Gets the DataSource
-	 * 
-	 * @return The data source file
-	 */
-	public File getDataSource() {
-		return this.dataSource;
-	}
-
-	/**
-	 * Sets the DataSource
-	 * 
-	 * @param file
-	 */
-	public void setDataSource(File file) {
-		this.dataSource = file;
-	}
-
-	// Selected BKU
-	// -------------------------------------------------------
-
-	/**
-	 * The selected BKU
-	 */
-	private BKUS selectedBKU = BKUS.NONE;
-
-	/**
-	 * Gets the selected BKU
-	 * 
-	 * @return the selectedBKU
-	 */
-	public BKUS getSelectedBKU() {
-		return this.selectedBKU;
-	}
-
-	/**
-	 * Sets the selected BKU
-	 * 
-	 * @param selectedBKU
-	 *            the selectedBKU to set
-	 */
-	public void setSelectedBKU(BKUS selectedBKU) {
-		this.selectedBKU = selectedBKU;
-	}
-
-	private Signator.Signers usedSignerLib = Signator.Signers.PDFAS;
-
-	/**
-	 * The PDF Signer
-	 */
-	private Signer pdfSigner = null;
-
-	/**
-	 * @return the pdfSigner
-	 */
-	public Signer getPdfSigner() {
-		return this.pdfSigner;
-	}
-
-	/**
-	 * @param pdfSigner
-	 *            the pdfSigner to set
-	 */
-	public void setPdfSigner(Signer pdfSigner) {
-		this.pdfSigner = pdfSigner;
-	}
-
-	private SignatureParameter parameter = null;
-
-	/**
-	 * @return the parameter
-	 */
-	public SignatureParameter getParameter() {
-		return this.parameter;
-	}
-
-	/**
-	 * @param parameter
-	 *            the parameter to set
-	 */
-	public void setParameter(SignatureParameter parameter) {
-		this.parameter = parameter;
-	}
-
-	/**
-	 * @return the usedSignerLib
-	 */
-	public Signator.Signers getUsedSignerLib() {
-		return usedSignerLib;
-	}
-
-	/**
-	 * @param usedSignerLib
-	 *            the usedSignerLib to set
-	 */
-	public void setUsedSignerLib(Signator.Signers usedSignerLib) {
-		this.usedSignerLib = usedSignerLib;
-	}
-}
diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/WorkflowState.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/WorkflowState.java
deleted file mode 100644
index 831c4394..00000000
--- a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/workflow/WorkflowState.java
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
- *
- * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
- * the European Commission - subsequent versions of the EUPL (the "Licence");
- * You may not use this work except in compliance with the Licence.
- * You may obtain a copy of the Licence at:
- * http://joinup.ec.europa.eu/software/page/eupl
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the Licence is distributed on an "AS IS" basis,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the Licence for the specific language governing permissions and
- * limitations under the Licence.
- */
-package at.asit.pdfover.gui.workflow;
-
-//Imports
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-/**
- * Base state class 
- */
-public abstract class WorkflowState {
-
-	/**
-	 * SFL4J Logger instance
-	 **/
-	@SuppressWarnings("unused")
-	private static final Logger log = LoggerFactory.getLogger(WorkflowState.class);
-	
-	private WorkflowState _next = null;
-	
-	/**
-	 * Default Workflow State constructor
-	 */
-	public WorkflowState() {
-		this._next = this;
-	}
-	
-	/**
-	 * Gets the next logical state or null if this their is no state transition
-	 * @return the next state (or null)
-	 */
-	public WorkflowState nextState() {
-		return this._next;
-	}
-	
-	/**
-	 * Sets the next logical state
-	 * @param state
-	 */
-	protected void setNextState(WorkflowState state) {
-		this._next = state;
-	}
-	
-	/**
-	 * Perform main logic for this state
-	 * @param workflow
-	 */
-	public abstract void update(Workflow workflow);
-}