rebuilding head

[mir.git] / source / mir / generator / TALGenerator.java

diff --git a/source/mir/generator/TALGenerator.java b/source/mir/generator/TALGenerator.java
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+/*
+ * Copyright (C) 2001, 2002 The Mir-coders group
+ *
+ * This file is part of Mir.
+ *
+ * Mir is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Mir is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Mir; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * In addition, as a special exception, The Mir-coders gives permission to link
+ * the code of this program with  any library licensed under the Apache Software License,
+ * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
+ * (or with modified versions of the above that use the same license as the above),
+ * and distribute linked combinations including the two.  You must obey the
+ * GNU General Public License in all respects for all of the code used other than
+ * the above mentioned libraries.  If you modify this file, you may extend this
+ * exception to your version of the file, but you are not obligated to do so.
+ * If you do not wish to do so, delete this exception statement from your version.
+ */
+package mir.generator;
+
+import java.io.PrintWriter;
+import java.io.File;
+import java.util.Map;
+
+import mir.generator.tal.MirExpressionParser;
+import mir.generator.tal.template.Template;
+import mir.generator.tal.TALTemplateEngine;
+import mir.generator.tal.interfaces.TALLogger;
+import mir.log.LoggerWrapper;
+
+public class TALGenerator implements Generator {
+  private String templateIdentifier;
+  private TALGeneratorLibrary library;
+
+  public TALGenerator(String aTemplate, TALGeneratorLibrary aLibrary) {
+    templateIdentifier = aTemplate;
+    library = aLibrary;
+  }
+
+  public void generate(Object anOutputWriter, Map aValues, final LoggerWrapper aLogger) throws GeneratorExc, GeneratorFailure {
+    Template template;
+
+    try {
+      template = library.engine.loadTemplate(templateIdentifier);
+
+      if (template == null) {
+        throw new GeneratorExc("TALGeneratorLibrary: Can't find template " + templateIdentifier);
+      }
+
+      template.process(aValues, (PrintWriter) anOutputWriter,
+          new TALLogger() {
+            public void debug(String anObject, String aMessage) {
+              aLogger.debug(anObject + ": " + aMessage);
+            }
+
+            public void info(String anObject, String aMessage) {
+              aLogger.info(anObject + ": " + aMessage);
+            }
+
+            public void warning(String anObject, String aMessage) {
+              aLogger.warn(anObject + ": " + aMessage);
+            }
+
+            public void error(String anObject, String aMessage) {
+              aLogger.error(anObject + ": " + aMessage);
+            }
+
+            public void fatal(String anObject, String aMessage) {
+              aLogger.fatal(anObject + ": " + aMessage);
+            }
+          },
+          library.engine);
+        }
+    catch (Throwable t) {
+      ((PrintWriter) anOutputWriter).println("ERROR: " + t.toString());
+
+      throw new GeneratorFailure(t);
+    }
+  }
+
+  public static class TALGeneratorLibrary implements Library {
+    private TALTemplateEngine engine;
+
+    public TALGeneratorLibrary(File aTemplateRoot) throws GeneratorExc, GeneratorFailure {
+      engine = new TALTemplateEngine(new MirExpressionParser(), aTemplateRoot);
+    }
+
+    public Generator makeGenerator(String anIdentifier) throws GeneratorExc, GeneratorFailure {
+      return new TALGenerator(anIdentifier, this);
+    }
+  }
+
+  public static class TALGeneratorLibraryFactory implements LibraryFactory {
+    private File basePath;
+
+    public TALGeneratorLibraryFactory(File aBasePath) {
+      basePath = aBasePath;
+    }
+
+    public Library makeLibrary(String anInitializationString) throws GeneratorExc, GeneratorFailure {
+      return new TALGeneratorLibrary(new File(basePath, anInitializationString));
+    };
+  }
+}