added ResourceProcessors to sonia.scm.io

scm-core/src/main/java/sonia/scm/io/AbstractResourceProcessor.java

@@ -0,0 +1,144 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.io;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.Reader;
+import java.io.Writer;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public abstract class AbstractResourceProcessor implements ResourceProcessor
+{
+
+  /**
+   * Method description
+   *
+   *
+   * @param variableMap
+   * @param reader
+   * @param writer
+   *
+   * @throws IOException
+   */
+  protected abstract void process(Map<String, String> variableMap,
+                                  BufferedReader reader, BufferedWriter writer)
+          throws IOException;
+
+  /**
+   * Method description
+   *
+   *
+   * @param key
+   * @param value
+   */
+  @Override
+  public void addVariable(String key, String value)
+  {
+    variableMap.put(key, value);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param input
+   * @param output
+   *
+   * @throws IOException
+   */
+  @Override
+  public void process(InputStream input, OutputStream output) throws IOException
+  {
+    process(new InputStreamReader(input), new OutputStreamWriter(output));
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param input
+   * @param output
+   *
+   * @throws IOException
+   */
+  @Override
+  public void process(File input, File output) throws IOException
+  {
+    process(new FileReader(input), new FileWriter(input));
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param reader
+   * @param writer
+   *
+   * @throws IOException
+   */
+  @Override
+  public void process(Reader reader, Writer writer) throws IOException
+  {
+    BufferedReader bufferedReader = null;
+    BufferedWriter bufferedWriter = null;
+
+    if (reader instanceof BufferedReader)
+    {
+      bufferedReader = (BufferedReader) reader;
+    }
+    else
+    {
+      bufferedReader = new BufferedReader(reader);
+    }
+
+    if (writer instanceof BufferedWriter)
+    {
+      bufferedWriter = (BufferedWriter) writer;
+    }
+    else
+    {
+      bufferedWriter = new BufferedWriter(writer);
+    }
+
+    process(variableMap, bufferedReader, bufferedWriter);
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param key
+   */
+  @Override
+  public void removeVariable(String key)
+  {
+    variableMap.remove(key);
+  }
+
+  //~--- fields ---------------------------------------------------------------
+
+  /** Field description */
+  private Map<String, String> variableMap = new HashMap<String, String>();
+}

scm-core/src/main/java/sonia/scm/io/AbstractWriter.java

@@ -7,10 +7,6 @@
 
 package sonia.scm.io;
 
-//~--- non-JDK imports --------------------------------------------------------
-
-import sonia.scm.util.Util;
-
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.File;

scm-core/src/main/java/sonia/scm/io/RegexResourceProcessor.java

@@ -0,0 +1,102 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.io;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.util.Util;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.IOException;
+
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class RegexResourceProcessor extends AbstractResourceProcessor
+{
+
+  /** Field description */
+  public static final Pattern PATTERN = Pattern.compile("\\$\\{([^\\$]+)\\}");
+
+  //~--- methods --------------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param variableMap
+   * @param reader
+   * @param writer
+   *
+   * @throws IOException
+   */
+  @Override
+  protected void process(Map<String, String> variableMap,
+                         BufferedReader reader, BufferedWriter writer)
+          throws IOException
+  {
+    try
+    {
+      String line = reader.readLine();
+
+      while (line != null)
+      {
+        line = parseLine(variableMap, line);
+        writer.write(line);
+        line = reader.readLine();
+
+        if (line != null)
+        {
+          writer.newLine();
+        }
+      }
+    }
+    finally
+    {
+      Util.close(reader);
+      Util.close(writer);
+    }
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param variableMap
+   * @param line
+   *
+   * @return
+   */
+  private String parseLine(Map<String, String> variableMap, String line)
+  {
+    Matcher m = PATTERN.matcher(line);
+
+    while (m.find())
+    {
+      String key = m.group(1);
+      String value = variableMap.get(key);
+
+      if (value != null)
+      {
+        line = m.replaceAll(value);
+      }
+
+      m = PATTERN.matcher(line);
+    }
+
+    return line;
+  }
+}

scm-core/src/main/java/sonia/scm/io/ResourceProcessor.java

@@ -0,0 +1,76 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+
+
+
+package sonia.scm.io;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.Reader;
+import java.io.Writer;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public interface ResourceProcessor
+{
+
+  /**
+   * Method description
+   *
+   *
+   * @param key
+   * @param value
+   */
+  public void addVariable(String key, String value);
+
+  /**
+   * Method description
+   *
+   *
+   * @param input
+   * @param output
+   *
+   * @throws IOException
+   */
+  public void process(InputStream input, OutputStream output)
+          throws IOException;
+
+  /**
+   * Method description
+   *
+   *
+   * @param input
+   * @param output
+   *
+   * @throws IOException
+   */
+  public void process(File input, File output) throws IOException;
+
+  /**
+   * Method description
+   *
+   *
+   * @param reader
+   * @param writer
+   *
+   * @throws IOException
+   */
+  public void process(Reader reader, Writer writer) throws IOException;
+
+  /**
+   * Method description
+   *
+   *
+   * @param key
+   */
+  public void removeVariable(String key);
+}