WIP

[hibernate4-maven-plugin] / src / main / java / de / juplo / plugins / hibernate / ModificationTracker.java

diff --git a/src/main/java/de/juplo/plugins/hibernate/ModificationTracker.java b/src/main/java/de/juplo/plugins/hibernate/ModificationTracker.java
index 7b5791f..3bb3463 100644 (file)
--- a/src/main/java/de/juplo/plugins/hibernate/ModificationTracker.java
+++ b/src/main/java/de/juplo/plugins/hibernate/ModificationTracker.java
@@ -1,22 +1,9 @@
 package de.juplo.plugins.hibernate;
 
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.math.BigInteger;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.Map;
 import java.util.Properties;
-import java.util.Set;
-import org.apache.maven.plugin.logging.Log;
 
 
 
@@ -24,188 +11,22 @@ import org.apache.maven.plugin.logging.Log;
  *
  * @author Kai Moritz
  */
-public class ModificationTracker
+public interface ModificationTracker
 {
-  private Map<String,String> properties;
-  private Map<String,String> classes;
+  boolean track(String name, InputStream is) throws IOException;
+  boolean track(String name, String property);
+  boolean track(Properties properties);
+  void track() throws IOException;
 
-  private final Set<String> propertyNames;
-  private final Set<String> classNames;
+  boolean check(String name, String property);
 
-  private boolean modified = false;
-  private boolean failed = false;
+  void touch();
 
-  private final File saved;
-  private final MessageDigest digest;
-  private final Log log;
+  boolean modified();
+  void failed();
 
+  void load();
+  void save();
 
-  ModificationTracker(String buildDirectory, String filename, Log log)
-      throws
-        NoSuchAlgorithmException
-  {
-    propertyNames = new HashSet<String>();
-    classNames = new HashSet<String>();
-    File output = new File(filename + ".md5s");
-    if (output.isAbsolute())
-    {
-      saved = output;
-    }
-    else
-    {
-      // Interpret relative file path relative to build directory
-      saved = new File(buildDirectory, output.getPath());
-      log.debug("Adjusted relative path, resulting path is " + saved.getPath());
-    }
-    digest = java.security.MessageDigest.getInstance("MD5");
-    this.log = log;
-  }
-
-
-  private String calculate(InputStream is)
-      throws
-        IOException
-  {
-    byte[] buffer = new byte[1024*4]; // copy data in 4MB-chunks
-    int i;
-    while((i = is.read(buffer)) > -1)
-      digest.update(buffer, 0, i);
-    is.close();
-    byte[] bytes = digest.digest();
-    BigInteger bi = new BigInteger(1, bytes);
-    return String.format("%0" + (bytes.length << 1) + "x", bi);
-  }
-
-  private boolean check(Map<String,String> values, String name, String value)
-  {
-    if (!values.containsKey(name) || !values.get(name).equals(value))
-    {
-      values.put(name, value);
-      return true;
-    }
-    else
-      return false;
-  }
-
-
-  boolean track(String name, InputStream is) throws IOException
-  {
-    boolean result = check(classes, name, calculate(is));
-    classNames.add(name);
-    modified |= result;
-    return result;
-  }
-
-
-  boolean check(String name, String property)
-  {
-    propertyNames.add(name);
-    return check(properties, name, property);
-  }
-
-  boolean track(String name, String property)
-  {
-    boolean result = check(name, property);
-    modified |= result;
-    return result;
-  }
-
-  boolean track(Properties properties)
-  {
-    boolean result = false;
-    for (String name : properties.stringPropertyNames())
-      result |= track(name, properties.getProperty(name));
-    return result;
-  }
-
-
-  void touch()
-  {
-    modified = true;
-  }
-
-  boolean modified()
-  {
-    for (String property : new HashSet<String>(properties.keySet()))
-      if (!propertyNames.contains(property))
-      {
-        modified = true;
-        properties.remove(property);
-      }
-     for (String clazz : new HashSet<String>(classes.keySet()))
-      if (!classNames.contains(clazz))
-      {
-        modified = true;
-        classes.remove(clazz);
-      }
-    return modified;
-  }
-
-
-  void failed()
-  {
-    failed = true;
-  }
-
-
-  void load()
-  {
-    if (saved.isFile() && saved.length() > 0)
-    {
-      try
-      {
-        FileInputStream fis = new FileInputStream(saved);
-        ObjectInputStream ois = new ObjectInputStream(fis);
-        properties = (HashMap<String,String>)ois.readObject();
-        classes = (HashMap<String,String>)ois.readObject();
-        ois.close();
-      }
-      catch (Exception e)
-      {
-        properties = new HashMap<String,String>();
-        classes = new HashMap<String,String>();
-        log.warn("Cannot read md5s from saved: " + e);
-      }
-    }
-    else
-    {
-      properties = new HashMap<String,String>();
-      classes = new HashMap<String,String>();
-      try
-      {
-        saved.createNewFile();
-      }
-      catch (IOException e)
-      {
-        log.debug("Cannot create file \"" + saved.getPath() + "\" for md5s: " + e);
-      }
-    }
-  }
-
-  void save()
-  {
-    if (failed)
-    {
-      saved.delete();
-      return;
-    }
-
-    if (!modified)
-      return;
-
-    /** Write md5-sums for annotated classes to file */
-    try
-    {
-      FileOutputStream fos = new FileOutputStream(saved);
-      ObjectOutputStream oos = new ObjectOutputStream(fos);
-      oos.writeObject(properties);
-      oos.writeObject(classes);
-      oos.close();
-      fos.close();
-    }
-    catch (Exception e)
-    {
-      log.error("Cannot write md5-sums to file: " + e);
-    }
-  }  
+  void turncat() throws IOException;  
 }