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Diffstat (limited to 'tools/gnu/classpath/tools/rmic/Generator.java')
-rw-r--r-- | tools/gnu/classpath/tools/rmic/Generator.java | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/rmic/Generator.java b/tools/gnu/classpath/tools/rmic/Generator.java new file mode 100644 index 000000000..64eb2eaf6 --- /dev/null +++ b/tools/gnu/classpath/tools/rmic/Generator.java @@ -0,0 +1,128 @@ +/* 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(); + } +} |