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+/* Generator.java -- Generic code generator.
+ Copyright (C) 2006 Free Software Foundation
+
+This file is part of GNU Classpath.
+
+GNU Classpath 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, or (at your option)
+any later version.
+
+GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+*/
+
+package gnu.classpath.tools.rmic;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.StringReader;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+
+/**
+ * Contains basic methods, used in code generation.
+ *
+ * @author Audrius Meskauskas, Lithuania (audriusa@Bioinformatics.org)
+ */
+public class Generator
+{
+ /**
+ * Get resource with the given name, as string.
+ *
+ * @param name the resource name
+ * @return the resourse string (in subfolder /templates).
+ */
+ public String getResource(String name)
+ {
+ String resourcePath = "templates/" + name;
+ InputStream in = getClass().getResourceAsStream(resourcePath);
+
+ if (in == null)
+ throw new InternalError(getClass().getName() + ": no resource "
+ + resourcePath);
+
+ BufferedReader r = new BufferedReader(new InputStreamReader(in));
+ StringBuffer b = new StringBuffer();
+
+ String s;
+ try
+ {
+ while ((s = r.readLine()) != null)
+ {
+ b.append(s);
+ b.append('\n');
+ }
+ r.close();
+ }
+ catch (IOException e)
+ {
+ InternalError ierr = new InternalError("No expected resource " + name);
+ ierr.initCause(e);
+ throw ierr;
+ }
+
+ return b.toString();
+ }
+
+ /**
+ * Replace the variable references (starting from #) in the template string by
+ * the values, present in the given map. The strings, not present in the
+ * variable map, are ignored.
+ *
+ * @param template
+ * the template string
+ * @param variables
+ * the map of variables (name to value) to replace.
+ * @return the string with replaced values.
+ */
+ public String replaceAll(String template, Map variables)
+ {
+ BufferedReader r = new BufferedReader(new StringReader(template));
+ String s;
+ StringBuffer b = new StringBuffer(template.length());
+ try
+ {
+ Iterator iter;
+ Collection vars = variables.keySet();
+ while ((s = r.readLine()) != null)
+ {
+ // At least one variable must appear in the string to make
+ // the string scan sensible.
+ if (s.indexOf('#') >= 0)
+ {
+ iter = vars.iterator();
+ String variable;
+ while (iter.hasNext())
+ {
+ variable = (String) iter.next();
+ if (s.indexOf(variable) >= 0)
+ s = s.replaceAll(variable,
+ (String) variables.get(variable));
+ }
+ }
+ b.append(s);
+ b.append('\n');
+ }
+ r.close();
+ }
+ catch (IOException e)
+ {
+ // This should never happen.
+ InternalError ierr = new InternalError("");
+ ierr.initCause(e);
+ throw ierr;
+ }
+ return b.toString();
+ }
+}