1 files changed, 150 insertions, 0 deletions

diff --git a/ant/ant14/com/vladium/emma/ant/GenericCfg.java b/ant/ant14/com/vladium/emma/ant/GenericCfg.java
new file mode 100644
index 0000000..02ebae6
--- /dev/null
+++ b/ant/ant14/com/vladium/emma/ant/GenericCfg.java
@@ -0,0 +1,150 @@
+/* Copyright (C) 2003 Vladimir Roubtsov. All rights reserved.
+ * 
+ * This program and the accompanying materials are made available under
+ * the terms of the Common Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * $Id: GenericCfg.java,v 1.1.1.1.2.1 2004/07/08 10:52:10 vlad_r Exp $
+ */
+package com.vladium.emma.ant;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Properties;
+
+import org.apache.tools.ant.BuildException;
+import org.apache.tools.ant.Task;
+
+import com.vladium.emma.EMMAProperties;
+import com.vladium.util.IProperties;
+import com.vladium.util.Property;
+
+// ----------------------------------------------------------------------------
+/**
+ * GenericCfg is a simple container for 'generic' properties, i.e., properties
+ * that are set via generic 'properties=<file>' attribute and <property>
+ * nested elements. This class makes no decision about relative priorities for
+ * propertie set in an external file or via nested elements, leaving this up
+ * to the parent.
+ * 
+ * @author Vlad Roubtsov, (C) 2003
+ */
+public
+class GenericCfg
+{
+    // public: ................................................................
+    
+
+    public GenericCfg (final Task task)
+    {
+        if (task == null) throw new IllegalArgumentException ("null input: task");
+        
+        m_task = task;
+        m_genericPropertyElements = new ArrayList ();
+    }
+    
+
+    // .properties file attribute [actual file I/O done lazily by getFileSettings()]:
+    
+    public void setProperties (final File file)
+    {
+        m_settingsFile = file; // actual file I/O is done in getFileSettings()
+    }
+
+    // generic property element:
+    
+    public PropertyElement createProperty ()
+    {
+        m_genericSettings = null;
+        
+        final PropertyElement property = new PropertyElement ();
+        m_genericPropertyElements.add (property);
+        
+        return property;
+    }
+
+    // ACCESSORS:
+
+    public IProperties getFileSettings ()
+    {
+        IProperties fileSettings = m_fileSettings;
+        if ((fileSettings == null) && (m_settingsFile != null))
+        {
+            try
+            {
+                fileSettings = EMMAProperties.wrap (Property.getPropertiesFromFile (m_settingsFile));
+            }
+            catch (IOException ioe)
+            {
+                throw (BuildException) SuppressableTask.newBuildException (m_task.getTaskName ()
+                    + ": property file [" + m_settingsFile.getAbsolutePath () + "] could not be read" , ioe, m_task.getLocation ()).fillInStackTrace ();
+            }
+            
+            m_fileSettings = fileSettings;
+            
+            return fileSettings;
+        }
+        
+        return fileSettings;
+    }
+    
+    public IProperties getGenericSettings ()
+    {
+        IProperties genericSettings = m_genericSettings;
+        if (genericSettings == null)
+        {
+            genericSettings = EMMAProperties.wrap (new Properties ());
+            
+            for (Iterator i = m_genericPropertyElements.iterator (); i.hasNext (); )
+            {
+                final PropertyElement property = (PropertyElement) i.next ();
+                
+                final String name = property.getName ();
+                String value = property.getValue ();
+                if (value == null) value = "";
+                
+                if (name != null)
+                {
+                    // [assertion: name != null, value != null]
+                    
+                    final String currentValue = genericSettings.getProperty (name);  
+                    if ((currentValue != null) && ! value.equals (currentValue))
+                    {
+                        throw (BuildException) SuppressableTask.newBuildException (m_task.getTaskName ()
+                            + ": conflicting settings for property [" + name + "]: [" + value + "]" , m_task.getLocation ()).fillInStackTrace ();
+                    }
+                    else
+                    {
+                        genericSettings.setProperty (name, value);
+                    }
+                }
+            }
+            
+            m_genericSettings = genericSettings;
+            
+            return genericSettings;
+        }
+        
+        return genericSettings;
+    }
+    
+    // protected: .............................................................
+
+    // package: ...............................................................
+    
+    // private: ...............................................................
+    
+    
+    private final Task m_task;
+        
+    private final List /* PropertyElement */ m_genericPropertyElements; // never null
+    private File m_settingsFile; // can be null
+    
+    private transient IProperties m_fileSettings; // can be null
+    private transient IProperties m_genericSettings; // can be null
+
+} // end of class
+// ----------------------------------------------------------------------------
\ No newline at end of file